[Federal Register Volume 85, Number 5 (Wednesday, January 8, 2020)]
[Proposed Rules]
[Pages 1018-1050]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2019-28461]
[[Page 1017]]
Vol. 85
Wednesday,
No. 5
January 8, 2020
Part III
Department of the Interior
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Fish and Wildlife Service
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50 CFR Part 17
Endangered and Threatened Wildlife and Plants; Threatened Species
Status for the Hermes Copper Butterfly With 4(d) Rule and Designation
of Critical Habitat; Proposed Rule
Federal Register / Vol. 85 , No. 5 / Wednesday, January 8, 2020 /
Proposed Rules
[[Page 1018]]
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DEPARTMENT OF THE INTERIOR
Fish and Wildlife Service
50 CFR Part 17
[Docket No. FWS-R8-ES-2017-0053; 4500030113]
RIN 1018-BC57
Endangered and Threatened Wildlife and Plants; Threatened Species
Status for the Hermes Copper Butterfly With 4(d) Rule and Designation
of Critical Habitat
AGENCY: Fish and Wildlife Service, Interior.
ACTION: Proposed rule.
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SUMMARY: We, the U.S. Fish and Wildlife Service (Service), propose to
list the Hermes copper butterfly (Lycaena [Hermelycaena] hermes), a
butterfly species from San Diego County, California, and Baja
California, Mexico, as a threatened species and propose to designate
critical habitat for the species under the Endangered Species Act
(Act). If we finalize this rule as proposed, it would extend the Act's
protections to this species as described in the proposed rule
provisions issued under section 4(d) of the Act, and designate
approximately 14,249 hectares (35,211 acres) of critical habitat in San
Diego County, California. We also announce the availability of a draft
economic analysis (DEA) of the proposed designation of critical habitat
for the Hermes copper butterfly.
DATES: We will accept comments received or postmarked on or before
March 9, 2020. Comments submitted electronically using the Federal
eRulemaking Portal (see ADDRESSES below) must be received by 11:59 p.m.
Eastern Time on the closing date. We must receive requests for public
hearings, in writing, at the address shown in FOR FURTHER INFORMATION
CONTACT by February 24, 2020.
ADDRESSES: You may submit comments by one of the following methods:
(1) Electronically: Go to the Federal eRulemaking Portal: http://www.regulations.gov. In the Search box, enter FWS-R8-ES-2017-0053,
which is the docket number for this rulemaking. Then, in the Search
panel on the left side of the screen, under the Document Type heading,
click on the Proposed Rules link to locate this document. You may
submit a comment by clicking on ``Comment Now!''
(2) By hard copy: Submit by U.S. mail or hand-delivery to: Public
Comments Processing, Attn: FWS-R8-ES-2017-0053; U.S. Fish and Wildlife
Service Headquarters, MS: BPHC, 5275 Leesburg Pike, Falls Church, VA
22041-3803.
We request that you send comments only by the methods described
above. We will post all comments on http://www.regulations.gov. This
generally means that we will post any personal information you provide
us (see Public Comments below for more information).
FOR FURTHER INFORMATION CONTACT: Scott Sobiech, Acting Field
Supervisor, Carlsbad Fish and Wildlife Office, 2177 Salk Avenue, Suite
250, Carlsbad, CA 92008; telephone 760-431-9440. Persons who use a
telecommunications device for the deaf (TDD) may call the Federal Relay
Service at 800-877-8339.
Document availability: The draft economic analysis and the Species
Status Assessment for the Hermes Copper Butterfly are available at
http://www.fws.gov/carlsbad, at http://www.regulations.gov at Docket
No. FWS-R8-ES-2017-0053, and at the Carlsbad Fish and Wildlife Office
(see FOR FURTHER INFORMATION CONTACT).
For the proposed critical habitat designation, the coordinates or
plot points or both from which the maps are generated are included in
the decisional file and are available at http://www.fws.gov/carlsbad,
http://www.regulations.gov at Docket No. FWS-R8-ES-2017-0053, and at
the Carlsbad Fish and Wildlife Office (see FOR FURTHER INFORMATION
CONTACT). Any additional tools or supporting information that we may
develop for this critical habitat designation will also be available at
the U.S. Fish and Wildlife Service website and Field Office set out
above, and may also be included in the preamble and/or at http://www.regulations.gov.
SUPPLEMENTARY INFORMATION:
Executive Summary
Why we need to publish a rule. Under the Act, if a species is
determined to be an endangered or threatened species throughout all or
a significant portion of its range, we are required to promptly publish
a proposal in the Federal Register. When we determine that a species is
endangered or threatened, we must designate critical habitat to the
maximum extent prudent and determinable. Listing a species as an
endangered or threatened species and designations of critical habitat
can only be completed by issuing a rule.
What this document does. This rule, if finalized, would add the
Hermes copper butterfly (Lycaena [Hermelycaena] hermes) to the List of
Endangered and Threatened Wildlife in title 50 of the Code of Federal
Regulations as a threatened species (50 CFR 17.11(h)) and extend the
Act's protections to this species through specific regulations issued
under section 4(d) of the Act (50 CFR 17.47(d)). The Hermes copper
butterfly is currently a candidate species for which we have on file
sufficient information on biological vulnerability and threats to
support preparation of a listing proposal but for which development of
a listing regulation had previously been precluded by other higher
priority listing activities. This proposed rule reassesses all
available information regarding the status of and threats to the Hermes
copper butterfly.
This document also includes a proposed rule to designate critical
habitat for the Hermes copper butterfly. We have determined that
designating critical habitat is both prudent and determinable for the
Hermes copper butterfly, and we propose a total of approximately 14,249
ha (35,211 ac) for the species in San Diego County, California.
The basis for our action. Under the Act, we can determine that a
species is an endangered or threatened species based on any of five
factors: (A) The present or threatened destruction, modification, or
curtailment of its habitat or range; (B) Overutilization for
commercial, recreational, scientific, or educational purposes; (C)
Disease or predation; (D) The inadequacy of existing regulatory
mechanisms; or (E) Other natural or manmade factors affecting its
continued existence. We have determined that the Hermes copper
butterfly and its habitat are threatened primarily by wildfire and to a
lesser extent by habitat fragmentation, isolation, land use change, and
climate change and drought, and by those threats acting in concert.
Under the Endangered Species Act, any species that is determined to
be a threatened or endangered species shall, to the maximum extent
prudent and determinable, have habitat designated that is considered to
be critical habitat. Section 4(b)(2) of the Act states that the
Secretary shall designate and make revisions to critical habitat on the
basis of the best available scientific data after taking into
consideration the economic impact, the impact on national security, and
any other relevant impact of specifying any particular area as critical
habitat. The Secretary may exclude an area from critical habitat if he
determines that the benefits of such exclusion outweigh the benefits of
specifying such area as part of the critical habitat, unless he
determines, based on the best scientific data available, that the
failure to designate
[[Page 1019]]
such area as critical habitat will result in the extinction of the
species.
Economic analysis. In order to consider economic impacts, we
prepared an analysis of the economic impacts of the proposed critical
habitat designation. We hereby announce the availability of the draft
economic analysis and seek public review and comment.
Peer review. We requested comments on the Species Status Assessment
for the Hermes Copper Butterfly (Lycaena [Hermelycaena] hermes) (SSA)
from independent specialists to ensure that we based our designation on
scientifically sound data, assumptions, and analyses. Comments from our
peer reviewers were incorporated into the SSA and informed this
proposed rule. We invite any additional comment from the peer reviewers
on the revised SSA during the public comment period.
Information Requested
We intend that any final action resulting from this proposed rule
will be based on the best scientific and commercial data available and
be as accurate and as effective as possible. Therefore, we request
comments or information from the public, other concerned governmental
agencies, Native American Tribes, the scientific community, industry,
or any other interested parties concerning this proposed rule. We
particularly seek comments concerning:
(1) The Hermes copper butterfly's biology, range, and population
trends, including:
(a) Biological or ecological requirements of the species, including
habitat requirements for feeding, breeding, and sheltering;
(b) Genetics and taxonomy;
(c) Historical and current range including distribution patterns;
(d) Historical and current population levels, and current and
projected trends; and
(e) Past and ongoing conservation measures for the species, its
habitat, or both.
(2) Factors that may affect the continued existence of the species,
which may include habitat modification or destruction, overutilization,
disease, predation, the inadequacy of existing regulatory mechanisms,
or other natural or manmade factors.
(3) Biological, commercial trade, or other relevant data concerning
any threats (or lack thereof) to this species and existing regulations
that may be addressing those threats.
(4) Information on activities or areas that might warrant being
exempted from the section 9(a)(1) take prohibitions proposed in this
rule under section 4(d) of the Act. The Service will evaluate ideas
provided by the public in considering the extent of prohibitions that
are necessary and advisable to provide for the conservation of the
species.
(5) Any additional conservation opportunities, such as mitigation
banks, candidate conservation agreements with assurances, or habitat
conservation plans that could provide for conservation and regulatory
certainty for the development community.
(6) Any additional information on Hermes copper butterfly
occurrence locations or threats impacting Hermes copper butterfly
habitat in northern Baja California, Mexico, particularly impacts of
wildfire or development.
(7) The reasons why we should or should not designate habitat as
``critical habitat'' under section 4 of the Act (16 U.S.C. 1531 et
seq.) including information to inform the following factors such that a
designation of critical habitat may be determined to be not prudent:
(a) The species is threatened by taking or other human activity and
identification of critical habitat can be expected to increase the
degree of such threat to the species;
(b) The present or threatened destruction, modification, or
curtailment of a species' habitat or range is not a threat to the
species, or threats to the species' habitat stem solely from causes
that cannot be addressed through management actions resulting from
consultations under section 7(a)(2) of the Act;
(c) Areas within the jurisdiction of the United States provide no
more than negligible conservation value, if any, for a species
occurring primarily outside the jurisdiction of the United States;
(d) No areas meet the definition of critical habitat.
(8) Specific information on:
(a) The amount and distribution of Hermes copper butterfly habitat;
(b) What areas within the geographical area currently occupied by
the species, that contain the physical or biological features essential
to the conservation of the species, should be included in the
designation and why;
(c) Special management considerations or protection that may be
needed for the physical or biological features essential to the
conservation of the species in critical habitat areas we are proposing,
including managing for the potential effects of climate change; and
(d) What areas not occupied at the time of listing are essential
for the conservation of the species. We particularly seek comments
regarding:
(i) Whether occupied areas are inadequate for the conservation of
the species; and,
(ii) Specific information that supports the determination that
unoccupied areas will, with reasonable certainty, contribute to the
conservation of the species and, contain at least one physical or
biological feature essential to the conservation of the species.
(9) Land use designations and current or planned activities in the
subject areas and their possible impacts on proposed critical habitat.
(10) Any probable economic, national security, or other relevant
impacts of designating any area that may be included in the final
designation, and the benefits of including or excluding areas that may
be impacted.
(11) Information on the extent to which the description of probable
economic impacts in the draft economic analysis is a reasonable
estimate of the likely economic impacts.
(12) Whether any specific areas we are proposing for critical
habitat designation should be considered for exclusion under section
4(b)(2) of the Act, and whether the benefits of potentially excluding
any specific area outweigh the benefits of including that area under
section 4(b)(2) of the Act.
(13) The likelihood of adverse social reactions to the designation
of critical habitat, as discussed in the associated documents of the
draft economic analysis, and how the consequences of such reactions, if
likely to occur, would relate to the conservation and regulatory
benefits of the proposed critical habitat designation.
(14) Whether we could improve or modify our approach to designating
critical habitat in any way to provide for greater public participation
and understanding, or to better accommodate public concerns and
comments.
You may submit your comments and materials concerning this proposed
rule by one of the methods listed in ADDRESSES. We request that you
send comments only by the methods described in ADDRESSES.
Please include sufficient information with your submission (such as
scientific journal articles or other publications) to allow us to
verify any scientific or commercial information you include. All
comments submitted electronically via http://www.regulations.gov will
be presented on the website in their entirety as submitted. For
comments submitted via hard copy, we will post your entire comment--
including your personal identifying information--on
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http://www.regulations.gov. You may request at the top of your document
that we withhold personal information such as your street address,
phone number, or email address from public review; however, we cannot
guarantee that we will be able to do so.
Comments and materials we receive, as well as supporting
documentation we used in preparing this proposed rule, will be
available for public inspection on http://www.regulations.gov, or by
appointment, during normal business hours, at the U.S. Fish and
Wildlife Service, Carlsbad Fish and Wildlife Office (see FOR FURTHER
INFORMATION CONTACT).
Please note that submissions merely stating support for or
opposition to the action under consideration without providing
supporting information, although noted, will not be considered in
making a determination, as section 4(b)(1)(A) of the Act directs that
determinations as to whether any species is a threatened or endangered
species must be made ``solely on the basis of the best scientific and
commercial data available.''
Public Hearing
Section 4(b)(5) of the Act provides for one or more public hearings
on this proposal, if requested. Requests must be received within 45
days after the date of publication of this proposed rule in the Federal
Register. Such requests must be sent to the address shown in FOR
FURTHER INFORMATION CONTACT. We will schedule public hearings on this
proposal, if any are requested, and announce the dates, times, and
places of those hearings, as well as how to obtain reasonable
accommodations, in the Federal Register and local newspapers at least
15 days before the hearing.
Peer Review
In accordance with our joint policy on peer review published in the
Federal Register on July 1, 1994 (59 FR 34270) and our August 22, 2016,
memorandum updating and clarifying the role of peer review of listing
actions under the Act, we have sought the expert opinions of
appropriate and independent specialists on the SSA report to ensure
that our listing and critical habitat proposals are based on
scientifically sound data, assumptions, and analyses. We sent the SSA
report to eight independent peer reviewers and received six responses.
The peer reviewers we selected have expertise in butterfly biology,
habitat, genetics, and threats (factors negatively affecting the
species), and their comments on the SSA helped inform our proposals.
These comments will be available along with other public comments in
the docket for this proposed rule.
Previous Federal Actions
The Hermes copper butterfly was included as a Category 2 candidate
species in our November 21, 1991 (56 FR 58804), and November 15, 1994
(59 FR 58982), Candidate Notices of Review (CNOR). Category 2 included
taxa for which information in the Service's possession indicated that a
proposed listing rule was possibly appropriate, but for which
sufficient data on biological vulnerability and threats were not
available to support a proposed rule. In the CNOR published on February
28, 1996 (61 FR 7596), the Service announced a revised list of plant
and animal taxa that were regarded as candidates for possible addition
to the Lists of Endangered and Threatened Wildlife and Plants. The
revised candidate list included only former Category 1 species. All
former Category 2 species were dropped from the list in order to reduce
confusion about the conservation status of these species and to clarify
that the Service no longer regarded these species as candidates for
listing. Since the Hermes copper butterfly was a Category 2 species, it
was no longer recognized as a candidate species as of the February 28,
1996, CNOR.
On October 26, 2004, we received a petition dated October 25, 2004,
from the Center for Biological Diversity (CBD) and David Hogan
requesting that Hermes copper butterfly be listed as endangered under
the Act and that critical habitat be designated. On August 8, 2006, we
published a 90-day finding for the Hermes copper butterfly in the
Federal Register (71 FR 44966). The finding concluded that the petition
and information in our files did not present substantial scientific or
commercial information indicating that listing Hermes copper butterfly
may be warranted. For a detailed history of Federal actions involving
Hermes copper butterfly prior to 2004, please see the August 8, 2006,
Federal Register document (71 FR 44966).
On March 17, 2009, CBD and David Hogan filed a complaint for
declaratory and injunctive relief challenging the Service's decision
not to list Hermes copper butterfly as endangered or threatened under
the Act. In a settlement agreement dated October 23, 2009 (Case No. 09-
0533 S.D. Cal.), the Service agreed to submit a new 90-day petition
finding to the Federal Register by May 13, 2010, for Hermes copper
butterfly. On May 4, 2010, we published a 90-day finding in the Federal
Register (75 FR 23654) that found the petition did present substantial
scientific or commercial information indicating that listing the Hermes
copper butterfly may be warranted.
On April 14, 2011, we published a 12-month finding stating that the
Hermes copper butterfly was warranted for listing as threatened or
endangered under the Act (76 FR 20918). However, we also found that
listing the Hermes copper butterfly was precluded by higher priority
listing actions. Based on species-level taxonomic classification and on
high-magnitude but non-imminent threats, we assigned the Hermes copper
butterfly a listing priority number of 5 and added it to the list of
candidate species. Candidate species are those fish, wildlife, and
plants for which we have on file sufficient information on biological
vulnerability and threats to support preparation of a listing proposal,
but for which development of a listing regulation is precluded by other
higher priority listing activities. We reaffirmed the Hermes copper
butterfly's candidate status in the annual CNOR in subsequent years (76
FR 66370, October 26, 2011; 77 FR 69994, November 21, 2012; 78 FR
70104, November 22, 2013; 79 FR 72450, December 5, 2014; 80 FR 80584,
December 24, 2015).
In the 2016 CNOR (81 FR 87246, December 2, 2016), we announced
that, although listing Hermes copper butterfly continued to be
warranted but precluded at the date of publication of the notice, we
were working on a thorough review of all available data. This proposed
listing rule constitutes completion of our status review for this
candidate species.
Background
A thorough review of the taxonomy, life history, and ecology of the
Hermes copper butterfly is presented in the Species Status Assessment
for the Hermes Copper Butterfly (Lycaena [Hermelycaena] hermes) Version
1.1 (Service 2018a), which is available at https://regulations.gov/ at
Docket No. FWS-R8-ES-2017-0053).
The Hermes copper butterfly is a small-sized butterfly historically
found in San Diego County, California, and northwestern Baja
California, Mexico (Service 2018a, Figure 4). There are 95 known
historical or extant Hermes copper butterfly occurrences in the United
States and northwestern Baja California, Mexico; 45 are extant or
presumed extant (all in the United States), 40 are presumed extirpated,
and 10 are permanently extirpated (Table 1).
While most recent scientific studies support recognition of Hermes
copper butterfly as belonging to the monotypic
[[Page 1021]]
genus Hermelycaena, Hermes copper butterfly was recognized as Lycaena
hermes (subgenus Hermelycaena) in the most recent peer-reviewed
taxonomic treatment (Pelham 2008, p. 191). Therefore, we recognize
Hermes copper butterfly as Lycaena hermes throughout the SSA (Service
2018a), this proposed rule, and subsequent documents.
Hermes copper butterfly individuals diapause (undergo a low
metabolic rate resting stage) as eggs during the late summer, fall, and
winter (Deutschman et al. 2010, p. 4). Adults are active May through
July, when females deposit single eggs exclusively on Rhamnus crocea
shrubs (spiny redberry; Thorne 1963, p. 143; Emmel and Emmel 1973, p.
62) in coastal sage scrub and chaparral vegetation. Adult occupancy and
feeding are also associated with presence of their primary nectar
source, the shrub Eriogonum fasciculatum (California buckwheat),
although other nectar sources may provide equivalent or supplemental
adult nutrition. Hermes copper butterflies are considered poor
dispersers, but they appear to have limited directed movement ability
and have been recaptured up to 0.7 mi (1.1 km) from the point of
release (Marschalek and Klein 2010, pp. 727-728). More information is
needed to fully understand movement patterns of Hermes copper
butterfly, especially across vegetation types; however, dispersal is
likely aided by winds but inhibited by lack of dispersal corridor-
connectivity areas in many areas (Deutschman et al. 2010, p. 17).
There are two types of ``habitat connectivity'' important to the
Hermes copper butterfly. Hermes copper butterflies need within-habitat
patch connectivity--an unfragmented habitat patch where reproduction
occurs. Habitat patches are a collection of host plants and host plant
patches among which adult butterflies readily and randomly move during
a flight season (any given butterfly is just as likely to be found
anywhere within that area). Butterflies must be free and likely to move
among individual host plants and patches of host plants within a
habitat patch. They also require dispersal corridor-connectivity areas,
which are undeveloped wildlands with suitable vegetation structure
between habitat patches close enough that recolonization of a formerly
occupied habitat patch is likely. We refer to both types of
connectivity in this proposed rule.
Table 1--Hermes Copper Butterfly Occurrences in the United States and Mexico. Year Is Given for Any Known Megafire That Impacted an Occurrence.
Approximate Percent of Occurrence Affected by Last Fire Is Given if Occurrence Is Extant or Presumed Extant
[See also service 2018a, Figure 12]
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Accuracy
Map No. Occurrence name EU \1\ Size \2\ Last record \3\ Status \4\ Megafire year (%) Reason extirpated
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1................ Bonsall........... WGF NC 1963 3 Presumed .......................... Development
Extirpated. Isolation.
2................ East San Elijo CH NC 1979 2 Presumed .......................... Development
Hills. Extirpated. Isolation.
3................ San Elijo Hills... CH NC 1957 3 Extirpated........ .......................... Development
Isolation.
4................ Elfin Forest...... CH NC 2011 1 Extant............ .......................... ..................
5................ Carlsbad.......... CH NC Pre-1963 3 Extirpated........ .......................... Development.
6................ Lake Hodges....... CH NC 1982 3 Presumed 2007...................... Development
Extirpated. Isolation Fire.
7................ Rancho Santa Fe... CH NC 2004 1 Presumed 2007...................... Development
Extirpated. Isolation Fire.
8................ Black Mountain.... CH NC 2004 1 Presumed Extant... .......................... ..................
9................ South Black CH NC Pre-1963 3 Extirpated........ .......................... Development.
Mountain.
10............... Van Dam Peak...... CH NC 2011 1 Extant............ .......................... ..................
11............... Sabre Springs..... CH NC 2001 1 Presumed .......................... Development
Extirpated. Isolation.
12............... Lopez Canyon...... CT Core 2011 1 Extant............ .......................... ..................
13............... Mira Mesa......... CT NC Pre-1963 3 Extirpated........ .......................... Development.
14............... West Mira Mesa.... CT NC Pre-1963 3 Extirpated........ .......................... Development.
15............... Northeast Miramar. CH Core 2000 1 Presumed 2003...................... Fire.
Extirpated.
16............... Southeast Miramar. CH NC 1998 2 Presumed 2003...................... Fire.
Extirpated.
17............... Miramar........... CH Core 2000 1 Presumed 2003...................... Fire.
Extirpated.
18............... West Miramar...... CT NC 1998 2 Presumed 2003...................... Fire.
Extirpated.
19............... Miramar Airfield.. CT NC Pre-1963 3 Presumed 2003...................... Fire.
Extirpated.
20............... South Miramar..... CH NC 2000 1 Presumed 2003...................... Fire.
Extirpated.
21............... Sycamore Canyon... WGF Core 2003 1 Presumed 2003...................... Fire.
Extirpated.
22............... South Sycamore WGF NC 2000 1 Presumed 2003...................... Fire.
Canyon. Extirpated.
23............... North Santee...... CH Core 2005 1 Presumed Extant... 2003 (60%)................ ..................
24............... Santee............ CH NC 1967 3 Extirpated........ .......................... Development.
25............... Santee Lakes...... CH NC 2001 1 Presumed 2003...................... Development Fire.
Extirpated.
26............... Mission Trails.... CH Core 2010 1 Extant............ 2003 (60%)................ Fire (pre-2003,
recolonized).
27............... North Mission CH NC 2003 1 Presumed 2003...................... Fire.
Trails. Extirpated.
28............... Cowles Mountain... CH NC 1973 2 Presumed Extant... .......................... ..................
29............... South Mission CH NC 1978 3 Presumed .......................... Development
Trails. Extirpated. Isolation.
30............... Admiral Baker..... CH NC 2015 1 Extant............ .......................... ..................
31............... Kearny Mesa....... CT NC 1939 3 Extirpated........ .......................... Development.
32............... Mission Valley.... CT NC Pre-1963 3 Extirpated........ .......................... Development.
33............... West Mission CT NC 1908 3 Extirpated........ .......................... Development.
Valley.
34............... San Diego State CT NC Pre-1963 3 Presumed .......................... Development.
University. Extirpated.
35............... La Mesa........... CH NC Pre-1963 3 Presumed .......................... Development.
Extirpated.
36............... Mt. Helix......... CH NC Pre-1963 3 Presumed .......................... Development.
Extirpated.
37............... East El Cajon..... CH NC Pre-1963 3 Presumed .......................... Development.
Extirpated.
38............... Dictionary Hill... CT NC 1962 2 Presumed Extant... .......................... ..................
39............... El Monte.......... CH NC 1960 2 Presumed 2003...................... Development Fire.
Extirpated.
40............... BLM Truck Trail... WGF Core 2006 1 Presumed extant... 2003 (90%)................ Fire
(recolonized?).
41............... North Crestridge.. WGF NC 1981 2 Presumed 1970, 2003................ Fire.
Extirpated.
42............... Northeast WGF NC 1963 2 Presumed Extant... 2003 (25%)................ ..................
Crestridge.
43............... East Crestridge... WGF NC 2003 1 Presumed Extant... 1970, 2003 (50%).......... ..................
[[Page 1022]]
44............... Crestridge........ WGF Core 2014 1 Extant............ 1970, 2003 (80%).......... ..................
45............... Boulder Creek Road PC Core 2017 1 Extant............ 2003 (100%)............... Fire
(recolonized?).
46............... North Guatay PC NC 2004 1 Presumed Extant... 2003 (10%)................ ..................
Mountain.
47............... South Guatay PC NC 2010 1 Extant............ 1970...................... ..................
Mountain.
48............... Pine Valley....... PC NC Pre-1963 3 Presumed Extant... .......................... ..................
49............... Descanso.......... PC Core 2017 1 Extant............ 1970, 2003 (50%).......... ..................
50............... Japutal........... WGF Core 2012 1 Extant............ 1970...................... ..................
51............... East Japutal...... WGF NC 2010 1 Extant............ 1970...................... ..................
52............... South Japutal..... WGF Core 2010 1 Extant............ 1970...................... ..................
53............... Corte Madera...... PC NC Pre-1963 3 Presumed Extant... 1970...................... ..................
54............... Alpine............ WGF Core 2011 1 Extant............ 1970...................... ..................
55............... East Alpine....... WGF NC Pre-1963 3 Presumed Extant... 1970...................... ..................
56............... Willows (Viejas WGF NC 2003 1 Presumed 2003...................... Fire.
Grade Road). Extirpated.
57............... Dehesa............ CH NC Pre-1963 3 Presumed Extant... 1970...................... ..................
58............... Loveland Reservoir WGF Core 2012 1 Extant............ 1970...................... ..................
59............... East Loveland WGF NC 2011 1 Extant............ 1970...................... ..................
Reservoir.
60............... West Loveland CH NC 2009 1 Extant............ 1970...................... ..................
Reservoir.
61............... Hidden Glen....... WGF NC 2010 1 Extant............ 1970...................... ..................
62............... McGinty Mountain.. CH Core 2014 1 Extant............ 1970...................... ..................
63............... East McGinty WGF NC 2001 2 Presumed Extant... 1970...................... ..................
Mountain.
64............... North Rancho San CH NC Pre-1963 3 Extirpated........ 1970...................... Development
Diego. Isolation.
65............... Rancho San Diego.. CH Core 2011 1 Extant............ 1970, 2007 (5%)........... ..................
66............... South Rancho San CH NC 2007 1 Presumed Extant... 1970, 2007 (50%).......... ..................
Diego.
67............... San Miguel CH Core 2007 1 Presumed 1970, 2007................ Fire.
Mountain. Extirpated.
68............... South San Miguel CH NC 2004 1 Presumed Extant... 1970, 2007 (50%).......... ..................
Mountain.
69............... North Jamul....... CH Core 2004 1 Presumed Extant... 1970, 2003 (5%)........... ..................
70............... North Rancho Jamul CH NC 2007 1 Presumed 2003, 2007................ Fire.
Extirpated.
71............... Rancho Jamul...... CH Core 2003 1 Presumed 2003, 2007................ Fire.
Extirpated.
72............... East Rancho Jamul. CH NC 2007 1 Presumed Extant... 1970, 2003, 2007 (5%)..... ..................
73............... Sycuan Peak....... WGF Core 2016 1 Extant............ 1970...................... ..................
74............... Skyline Truck WGF Core 2017 1 Extant............ 1970...................... ..................
Trail.
75............... Lyons Peak........ WGF NC 2003 1 Presumed Extant... 1970, 2007 (50%).......... ..................
76............... Gaskill Peak...... WGF NC 2010 1 Extant............ 1970...................... ..................
77............... Lawson Valley..... WGF Core 2017 1 Extant............ 1970, 2007 (40%).......... ..................
78............... Bratton Valley.... WGF NC Pre-1963 3 Presumed 1970, 2007................ Fire.
Extirpated.
79............... Hollenbeck Canyon. WGF Core \5\ 2016 1 Presumed 1970, 2007................ Fire.
Extirpated \5\.
80............... Southeast WGF NC 2007 1 Presumed 1970, 2007................ Fire.
Hollenbeck Canyon. Extirpated.
81............... South Hollenbeck CH NC Pre-1963 3 Presumed 1970, 2003, 2007.......... Fire.
Canyon. Extirpated.
82............... West Hollenbeck CH NC 2007 1 Presumed 1970, 2007................ Fire.
Canyon. Extirpated.
83............... Otay Mountain..... WGF NC 1979 2 Presumed 2003, 2007................ Fire.
Extirpated.
84............... South Otay WGF NC Pre-1963 3 Presumed 2003, 2007................ Fire.
Mountain. Extirpated.
85............... Dulzura........... WGF NC 2005 1 Presumed 2007...................... Fire.
Extirpated.
86............... Deerhorn Valley... WGF NC 1970 3 Presumed 2007...................... Fire.
Extirpated.
87............... North Hartley Peak WGF NC 2010 1 Extant............ 2007 (100%)............... Fire
(recolonized?).
88............... South Hartley Peak WGF NC 2010 1 Extant............ 2007 (50%)................ ..................
89............... North Portrero.... WGF Core 2010 1 Extant............ 2007 (25%)................ ..................
90............... South Portrero.... WGF Core 2012 1 Extant............ .......................... ..................
91............... Tecate Peak....... WGF NC 1980 3 Presumed 2007...................... Fire.
Extirpated.
92............... Otay Mesa......... CT NC Pre-1920 3 Presumed .......................... Development
Extirpated. Isolation.
Mexico \6\........ ......... ......... ........... .......... .................. .......................... ..................
93............... Salsipuedes....... n/a NC 1983 3 Presumed 2014...................... Fire.
Extirpated.
94............... Santo Tomas....... n/a NC Pre-1920 3 Presumed 2003...................... Fire.
Extirpated.
95............... North Ensenada.... n/a NC 1936 3 Presumed 2005, 2014................ Fire.
Extirpated.
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ California Ecological Units: CH = Coastal Hills; CT = Coastal Terraces; WGF = Western Granitic Foothills; PC = Palomar-Cuyamaca Peak.
\2\ NC means ``non-core.'' ``Core''/large geographic footprint defined by a total area within \1/2\ km of Hermes copper butterfly records greater than
176 hectares (435 acres).
\3\ Geographic accuracy categories: 1 means recorded GPS coordinates or accurate map; 2 means relatively accurate specimen collection site label or map;
3 means site name record or map only accurate enough for determining species' range (not used to determine size, or in mapping if within 1.5 km of a
higher accuracy record).
\4\ ``Extirpated'' means associated habitat has all been developed. ``Presumed extirpated'' means the record location is developed but there is a
significant amount of remaining undeveloped habitat, or all records within a 2003 or later fire footprint and no post-fire butterfly records.
``Presumed extant'' means unburned or post-fire record >10 years old. ``Extant'' means there is a record <10 years old in unburned habitat.
\5\ At least one adult observed after 2015 translocation, may not represent breeding.
\6\ Although records are low accuracy, extirpation of populations in Mexico is presumed due to numerous large fires in the area between 2003 and 2014
(NASA imagery).
[[Page 1023]]
Summary of Analysis
To assess Hermes copper butterfly viability, we used the three
conservation biology principles of resiliency, redundancy, and
representation (together, the 3Rs) (Shaffer and Stein 2000, pp. 306-
310). Briefly, resiliency supports the ability of the species to
withstand environmental stochasticity (for example, wet or dry, warm or
cold years); representation supports the ability of the species to
adapt over time to long-term changes in the environment (for example,
climate changes); and redundancy supports the ability of the species to
withstand catastrophic events (for example, droughts, hurricanes). In
general, the more redundant, representative, and resilient a species
is, the more likely it is to sustain populations over time, even under
changing environmental conditions. Using these principles, we
identified the species' ecological requirements for survival and
reproduction at the individual, population, and species levels, and
described the beneficial and risk factors influencing the species'
viability.
The assessment process used to develop the SSA (Service 2018a) can
be categorized into three sequential stages. During the first stage, we
used the principles of resiliency, redundancy, and representation to
evaluate the Hermes copper butterfly's life-history needs. The next
stage involved an assessment of the historical and current condition of
the species' demographics and habitat characteristics, including an
explanation of how the Hermes copper butterfly arrived at its current
condition. The final stage involved making predictions about the
species' response to positive and negative environmental and
anthropogenic influences. This process used the best scientific and
commercial data available to characterize viability as the ability of
the Hermes copper butterfly to sustain populations in the wild over
time.
In the SSA (Service 2018a), we describe the ecological needs of the
Hermes copper butterfly at the hierarchical levels of individual,
population, and species. There are also spatial and temporal components
to hierarchical resource needs, reflected in the average area occupied
by and ``life expectancy'' of each ecological entity. Individual needs
are met and resource availability should be assessed at the adult male
territory scale on an annual basis, reflecting the life span of an
individual (from egg to adult). Population-level resilience needs are
met and resource availability should be assessed on the habitat patch
or metapopulation (interconnected habitat patches) scale over a period
of decades. Populations or subpopulations persist in intact habitat
until they are extirpated by stochastic events such as wildfire, to
eventually be replaced as habitat is recolonized (18 years is the
estimated time it took for the Mission Trails occurrence
recolonization). Species-level viability needs are assessed and must be
met at a range-wide scale if the species is to avoid extinction. The
following list describes the Hermes copper butterfly's ecological
needs:
(1) Individual Resource Needs:
(a) Egg: Suitable spiny redberry stems for substrate.
(b) Larvae: Suitable spiny redberry leaf tissue for development.
(c) Pupae: Suitable leaves for pupation.
(d) Adults: Suitable spiny redberry stem tissue for oviposition;
nectar sources (primarily California buckwheat); mates.
(2) Population Needs:
(a) Resource needs and/or circumstances: Habitat elements required
by populations include spiny redberry bushes (quantity uncertain, but
not isolated individuals) and associated stands of California buckwheat
or similar nectar sources.
(b) Population-level redundancy: Populations must have enough
individuals (population growth) in ``good years'' that after
reproduction is limited by poor environmental conditions such as
drought in intervening ``bad years,'' individuals can still find mates.
Alternatively, there need to be enough diapausing eggs to wait out a
bad year and restore the average population size or greater in the
subsequent year. That is, populations are always large enough to
persist through expected periods of population decline.
(c) Population-level representation: It is unclear how susceptible
the Hermes copper butterfly is to inbreeding depression. A mix of open,
sunny areas should be present within habitat patches and stands of
California buckwheat for nectar in the vicinity of spiny redberry host
plants. Additionally, individuals must be distributed over a large
enough area (population footprint/distribution) that not all are likely
to be killed by stochastic events such as wildfire.
(3) Species Needs:
(a) Resource needs and/or circumstances: Dispersal corridor-
connectivity areas among subpopulations to maintain metapopulation
dynamics. For Hermes copper butterfly, this means suitable corridor
habitat with suitable intervening vegetation structure and topography
between habitat patches that are close enough so that recolonization of
habitat patches where a subpopulation was extirpated is likely.
Apparent impediments to dispersal include forested, riparian, and
developed areas.
(b) Species-level redundancy: 95 known historical or extant Hermes
copper butterfly occurrences have been documented in southern
California, United States, and northwestern Baja California, Mexico: 45
are extant or presumed extant (all in the United States), 40 are
presumed extirpated, and 10 are permanently extirpated (Table 1). In
order to retain the species-level redundancy required for species
viability, populations and temporarily unoccupied habitats must be
distributed throughout the species' range in sufficient numbers and in
a geographic configuration that supports dispersal corridor-
connectivity areas described in (a) above.
(c) Species-level representation: Populations must be distributed
in a variety of habitats (including all four California Ecological
Units; Service 2018a, p. 58) so that there are always some populations
experiencing conditions that support reproductive success. In
especially warm, dry years, populations in wetter habitats should
experience the highest population growth rates within the species'
range, and in colder, wetter years populations in drier habitats should
experience the highest growth rates. Populations should be represented
across a continuum of elevation levels from the coast to the mountain
foothills. There is currently only one known extant occurrence
remaining with marine climate influence, four with montane climate
influence, and the remainder at intermediate elevations with a more
arid climate (Service 2018a, p. 55). Those populations in higher
elevation, cooler habitats, and coastal habitats with more marine
influence are less susceptible to a warming climate and are, therefore,
most important to maintain.
Summary of Factors Affecting the Species
The Act directs us to determine whether any species is an
endangered species or a threatened species because of any factors
affecting its continued existence. We completed a comprehensive
assessment of the biological status of the Hermes copper butterfly and
prepared a report of the assessment, which provides a thorough account
of the species' overall viability. We generally define viability as the
ability of the species to sustain
[[Page 1024]]
populations in the natural ecosystem for the foreseeable future.
The SSA (Service 2018a) documents the results of our comprehensive
biological status review for the Hermes copper butterfly, including an
assessment of the potential threats to the species. The SSA does not
represent a decision by the Service on whether the Hermes copper
butterfly should be proposed for listing as an endangered or threatened
species under the Act. The SSA does, however, provide the scientific
basis that informs our regulatory decision, which involves the further
application of standards within the Act and its implementing
regulations and policies. In this section, we summarize the conclusions
of the SSA report, which can be accessed at Docket No. FWS-R8-ES-2017-
0053 on http://www.regulations.gov and at http://www.fws.gov/carlsbad.
To evaluate the current and future viability of the Hermes copper
butterfly, we assessed a range of conditions to allow us to consider
the species' resiliency, redundancy, and representation. We use the
terms ``stressor'' and ``threat'' interchangeably as any action or
condition that is known to or is reasonably likely to negatively affect
individuals of a species. This includes those actions or conditions
that have a direct impact on individuals, as well as those that affect
individuals through alteration of their habitat or required resources.
The mere identification of ``threats'' is not sufficient to compel a
finding that listing is warranted. Describing the negative effects of
the action or condition (i.e., ``threats'') in light of the exposure,
timing, and scale at the individual, population, and species levels
provides a clear basis upon which to make our determination. In
determining whether a species meets the definition of an ``endangered
species'' or a ``threatened species,'' we have considered the factors
under section 4(a)(1) and assessed the cumulative effect that the
threats identified within the factors--as ameliorated or exacerbated by
any existing regulatory mechanisms or conservation efforts--will have
on the species now and in the foreseeable future.
The following sections include summary evaluations of five threats
impacting the Hermes copper butterfly or its habitat, including
wildfire (Factor A), land use change (Factor A), habitat fragmentation
and isolation (Factor A), climate change (Factor E), and drought
(Factor E); as well as evaluating the cumulative effect of these on the
species, including synergistic interactions between the threats and the
vulnerability of the species resulting from small population size. We
also consider the impacts of existing regulatory mechanisms (Factor D)
on all existing threats (Service 2018a, pp. 33-54). We also note that
potential impacts associated with overutilization (Factor B), disease
(Factor C), and predation (Factor C) were evaluated but found to have
minimal to no impact on the species (Service 2018a, pp. 33-54).
For the purpose of this analysis, we generally define viability as
the ability of the species to sustain populations in the natural
ecosystem for the foreseeable future--in this case, 30 years. We chose
30 years because it is within the range of the available hydrological
and climate change model forecasts, fire hazard period calculations,
and the fire-return interval estimates for habitat-vegetation
associations that support the Hermes copper butterfly.
Current Condition
Wildfire
Wildfire impacts both Hermes copper butterfly and its habitat. The
vegetation types that support Hermes copper butterfly--chaparral and
coastal sage scrub--are prone to relatively frequent wildfire
ignitions, and many plant species that characterize those habitat types
are fire-adapted. The Hermes copper butterfly's host plant, spiny
redberry, resprouts after fires and is relatively resilient to frequent
burns (Keeley 1998, p. 258). The effect of wildfire on Hermes copper
butterfly's primary nectar source California buckwheat is more
complicated. California buckwheat is a facultative seeder that has
minimal resprouting capability (approximately 10 percent) for young
individuals (Keeley 2006, p. 375). Wildfires cause high mortality in
California buckwheat, and densities are reduced the following year
within burned areas (Zedler et al. 1983, p. 814); however, California
buckwheat recolonizes relatively quickly (compared to other coastal
sage scrub species) if post-fire conditions are suitable.
The historical fire regime in southern California likely was
characterized by many small, lightning-ignited fires in the summer and
a few infrequent large fires in the fall (Keeley and Fotheringham 2003,
pp. 242-243). These infrequent, large, high-intensity wildfires, so-
called ``megafires'' (defined in the SSA as those fires greater than
16,187 hectares (ha) (40,000 acres (ac)) in size) (Service 2018a, p.
33), burned the landscape long before Europeans settled the Pacific
coast (Keeley and Zedler 2009, p. 90). As such, the current pattern of
small, low-intensity fires with large infrequent fires is consistent
with that of historical regimes (Keeley and Zedler 2009, p. 69).
Therefore, habitat that supports Hermes copper butterfly is naturally
adapted to fire and has some natural resilience to impacts from
wildfire.
However, in recent decades, wildfire has been increasing in both
frequency and magnitude (Safford and Van de Water 2014, pp. i, 31-35).
Annual mean area under extreme fire risk has increased steadily in
California since 1979, and 2014 ranked highest in the history of the
State (Yoon et al. 2015, p. S5).
For the historical range of the Hermes copper butterfly, the fire
rotation interval decreased from 68 (1910-2000) to 49 years (1925-2015)
(Service 2017, entire). In other words, the amount of time it took for
all burned areas to add up to the total range decreased when the last
15 years of data were added to the analysis. A change in only 17
percent of the time period analyzed resulted in a 28 percent decrease
in fire rotation interval (Service 2017, entire).
Increasing fire frequency and size is of particular concern for the
Hermes copper butterfly because of how long it can take for habitat to
be recolonized after wildfire. For example, in Mission Trails Park the
2,596-ha (7,303-ac) ``Assist #59'' Fire in 1981 and the smaller 51-ha
(126-ac) ``Assist #14'' Fire in 1983 (no significant overlap between
acreages burned by the fires), resulted in an approximate 18-year
extirpation of the Mission Trails Park Hermes copper butterfly
occurrence (Klein and Faulkner 2003, pp. 96, 97).
To assess the impacts of fire on the Hermes copper butterfly, we
examined maps of recent high-fire-hazard areas in San Diego County
(Service 2018a, Figure 8). Almost all remaining habitat within mapped
Hermes copper butterfly occurrences falls within the ``very high'' fire
hazard severity zone for San Diego County (Service 2018a, Figure 8).
Areas identified in our analysis as most vulnerable to extirpation by
wildfire include most occupied and potentially occupied Hermes copper
butterfly habitats in San Diego County within the southern portion of
the range. Twenty-eight potential source occurrences for recolonization
of recently burned habitat fall within a contiguous area that has not
recently burned (Service 2018a, Figure 7), and where the fire hazard is
considered high (Service 2018a, Figure 8).
Although habitat that supports Hermes copper butterfly is adapted
to fire, increased fire frequency can still
[[Page 1025]]
have detrimental effects. Frequent fires open up the landscape, making
the habitat more vulnerable to invasive, nonnative plants and
vegetation type-conversion (Keeley et al. 2005, p. 2117). The extent of
invasion of nonnative plants and type conversion in areas specifically
inhabited by Hermes copper butterfly is unknown. However, wildfire
clearly results in at least temporary reductions in suitable habitat
for Hermes copper butterfly and may result in lower densities of
California buckwheat (Zedler et al. 1983, p. 814; Keeley 2006, p. 375;
Marschalek and Klein 2010, p. 728). Although Keeley and Fotheringham
(2003, p. 244) indicated that continued habitat disturbance, such as
fire, will result in conversion of native shrublands to nonnative
grasslands, Keeley (2004, p. 7) also noted that invasive, nonnative
plants will not typically displace obligate resprouting plant species
in mesic shrublands that burn once every 10 years. Therefore, while
spiny redberry resprouts, the quantity of California buckwheat as a
nectar source necessary to support a Hermes copper butterfly occurrence
may be temporarily unavailable due to recent fire impacts, and
nonnative grasses commonly compete with native flowering plants that
would otherwise provide abundant nectar after fire.
Extensive and intense wildfire events are the primary recent cause
of direct mortality and extirpation of Hermes copper butterfly
occurrences. The magnitude of this threat appears to have increased due
to an increased number of recent megafires created by extreme ``Santa
Ana'' driven weather conditions of high temperatures, low humidity,
strong erratic winds, and human-caused ignitions (Keeley and Zedler
2009, p. 90; Service 2018a, pp. 33-41). The 2003 Otay and Cedar fires
and the 2007 Harris and Witch Creek fires in particular have negatively
impacted the species, resulting in or contributing to the extirpation
of 33 occurrences (Table 1). Only 3 of the 31 U.S. occurrences thought
to have been extirpated in whole or in part by fire since 2003 appear
to have been naturally re-established, or were not entirely extirpated
(Table 1; Service 2018a, Figure 7; Winter 2017, pers. comm.).
Wildfires that occur in occupied Hermes copper butterfly habitat
result in direct mortality of Hermes copper butterflies (Klein and
Faulkner 2003, pp. 96-97; Marschalek and Klein 2010, pp. 4-5).
Butterfly populations in burned areas rarely survive wildfire because
immature life stages of the butterfly inhabit host plant foliage, and
spiny redberry typically burns to the ground and resprouts from stumps
(Deutschman et al. 2010, p. 8; Marschalek and Klein 2010, p. 8). This
scenario results in at least the temporal loss of both the habitat
(until the spiny redberry and nectar source regrowth occurs) and the
presence of butterflies (occupancy) in the area.
Wildfires can also leave patches of unburned occupied habitat that
are functionally isolated (further than the typical dispersal distance
of the butterfly) from other occupied habitat. Furthermore, large fires
can eliminate source populations before previously burned habitat can
be recolonized, and can result in long-term or permanent loss of
butterfly populations. Historically, Hermes copper butterfly persisted
through wildfire by recolonizing extirpated occurrences once the
habitat recovered. However, as discussed below, ongoing loss and
isolation of habitat has resulted in smaller, more isolated populations
than existed historically. This isolation has likely reduced or removed
the ability of the species to recolonize occurrences extirpated by
wildfire.
Our analysis of current fire danger and fire history illustrates
the potential for catastrophic loss of the majority of remaining
butterfly occurrences should another large fire occur prior to
recolonization of burned habitats. As discussed by Marschalek and Klein
(2010, p. 9) and Deutschman et al. (2010, p. 42), one or more wildfires
could extirpate the majority of extant Hermes copper butterfly
occurrences. Furthermore, no practical measures are known that could
significantly reduce the impact of megafires on the Hermes copper
butterfly and its habitat. In a 2015 effort to mitigate the impact of
wildfires on Hermes copper butterfly, Marschalek and Deutschman (2016c)
initiated a translocation study, funded by the San Diego Association of
Governments (SANDAG), to assist recolonization of habitat formerly
occupied by the large Hollenbeck Canyon occurrence. While it is not
clear that this attempt was successful, in 2016 there were signs of
larval emergence from eggs and at least one adult was observed,
indicating some level of success (Marschalek and Deutschman 2016c, p.
10). Regulatory protections, such as ignition-reduction measures, do
exist to reduce fire danger; however, large megafires are considered
resistant to control (Durland, pers. comm., in Scauzillo 2015).
The current fire regime in Mexico is not as well understood. Some
researchers claim chaparral habitat in Mexico within the Hermes copper
butterfly's range is not as affected by megafires because there has
been less fire suppression activity than in the United States (Minnich
and Chou 1997, pp. 244-245; Minnich 2001, pp. 1,549-1,552). In
contrast, Keeley and Zedler (2009, p. 86) contend the fire regime in
Baja California mirrors that of Southern California, similarly
consisting of ``small fires punctuated at periodic intervals by large
fire events.'' Local experts agree the lack of fire suppression
activities in Mexico has reduced the fuel load on the landscape,
subsequently reducing the risk of megafire in Mexico (Oberbauer 2017,
pers. comm.; Faulkner 2017, pers. comm.). However, examination of
satellite imagery from the 2000s indicates impacts from medium-sized
wildfire in Mexico are similar to those in San Diego County, as
evidenced by two large fires in 2014 that likely impacted habitats
associated with the Hermes copper butterfly records near Ensenada (NASA
2017a; 2017b; Service 2018a p. 37).
Although the level of impact may vary over time, wildfires cause
ongoing degradation, destruction, fragmentation, and isolation of
Hermes copper butterfly habitat as well as direct losses of Hermes
copper butterfly that have contributed to the extirpation of numerous
populations. As discussed above, only 3 of the 31 U.S. occurrences
thought to have been extirpated in whole or in part by fire since 2003
appear to have been naturally re-established. This threat affects all
Hermes copper butterfly populations and habitat across the species'
entire range.
Land Use Change
Urban development within San Diego County has resulted in the loss,
fragmentation, and isolation of Hermes copper butterfly habitat
(CalFlora 2010; Consortium of California Herbaria 2010; San Diego
County Plant Atlas 2010) (see the Habitat Isolation section below). Of
the 50 known Hermes copper butterfly occurrences confirmed or presumed
extirpated, loss, fragmentation, and isolation of habitat as a result
of development contributed to 23 of those (46 percent; Table 1). In
particular, habitat isolation is occurring between the northern and
southern portions of the species' range and in rural areas of the
southeastern county; this loss of dispersal corridor-connectivity areas
is of greatest concern where it would impact core occurrences in these
areas (Service 2018a, p. 41).
To quantify the remaining land at risk of development, we analyzed
all existing habitat historically occupied by the Hermes copper
butterfly based on specimens and observation records. We
[[Page 1026]]
then removed lands that have been developed and examined the ownership
of remaining, undeveloped land. Currently, approximately 64 percent of
the remaining undeveloped habitat is protected from destruction by
development because it is conserved (Service 2018a, p. 41).
The County of San Diego has two ordinances in place that restrict
new development or other proposed projects within sensitive habitats.
The Biological Mitigation Ordinance of the County of San Diego Subarea
Plan and the County of San Diego Resource Protection Ordinance regulate
development within coastal sage scrub and mixed chaparral habitats that
currently support extant Hermes copper butterfly populations on non-
Federal land within the County's jurisdiction (for example, does not
apply to lands under the jurisdiction of the City of Santee or the City
of San Diego). Additionally, County regulations mandate surveys for
Hermes copper butterfly occupancy and habitat, and to the extent it is
a significant impact under the California Environmental Quality Act
(Cal. Pub. Res. Code 21000 et seq.), mitigation may be required. These
local resource protection ordinances may provide some regulatory
measures of protection for the remaining 36 percent of extant Hermes
copper butterfly habitat throughout the species' occupied range, when
occurring within the County's jurisdiction. Additionally, presence of
Hermes copper butterflies has on occasion been a factor within San
Diego County for prioritizing land acquisitions for conservation from
Federal, State, and private funding sources due to the focus of a local
conservation organization. However, there is no coordinated effort to
prioritize Hermes copper butterfly conservation efforts within the
species' range. SANDAG has provided funding for Hermes copper butterfly
surveys and research since 2010, as well as grants for acquisition of
two properties that have been (or are) occupied by Hermes copper
butterfly.
There is uncertainty regarding the Hermes copper butterfly's
condition within its southernmost known historical range in Mexico;
however, one expert estimated that development pressure in known
occupied areas near the city of Ensenada was similar to that in the
United States (Faulkner 2017, pers. comm.).
We conclude that development is a current, ongoing threat
contributing to reduction and especially isolation of remaining Hermes
copper butterfly habitat in limited areas on non-Federal lands at this
time. However, some regulatory protections are in place, and 64 percent
of historically occupied habit is on conserved lands. Therefore,
although the rate of habitat loss has been reduced relative to
historical conditions, regulations have not served to protect some key
populations or dispersal corridor-connectivity areas, and development
continues to increase isolation of the northern portion from the
southern portion of the species' range (Service 2018a, pp. 40-44).
Habitat Isolation
Habitat isolation directly affects the likelihood of Hermes copper
butterfly population persistence in portions of its range, and
exacerbates other effects from fire and development. Hermes copper
butterfly populations have become isolated both permanently (past and
ongoing urban development) and more temporarily (wildfires). Habitat
isolation separates extant occurrences and inhibits movement by
creating a gap that Hermes copper butterflies are not likely to
traverse. Any loss of resources on the ground that does not affect
butterfly movement, such as burned vegetation, may degrade but not
fragment habitat. Therefore, in order for habitat to be isolated,
movement must either be inhibited by a barrier, or the distance between
remaining suitable habitat must be greater than adult butterflies will
typically move to mate or to deposit eggs. Thus, a small fire that
temporarily degrades habitat containing host plants is not likely to
support movement between suitable occupied habitat patches and could
cause temporary isolation. It is important to note that, although
movement may be possible, to ensure successful recolonization, habitat
must be suitable at the time Hermes copper butterflies arrive.
Effects from habitat isolation in the northern portion of the
species' range have resulted in extirpation of at least four Hermes
copper butterfly occurrences (see Table 1 above). A historical Hermes
copper butterfly occurrence (Rancho Santa Fe) in the northern portion
of the range has been lost since 2004. This area is not expected to be
recolonized because it is mostly surrounded by development and the
nearest potential ``source'' occurrence is Elfin Forest, 2.7 mi (4.3
km) away, where at least one adult was last detected in 2011
(Marschalek and Deutschman 2016a, p. 8). Farther to the south, Black
Mountain, Lopez Canyon, Van Dam Peak, and the complex of occurrences
comprising Mission Trails Park, North Santee, and Lakeside Downs are
isolated from other occurrences by development. Because a number of
populations have been lost, and only a few isolated and mostly
fragmented ones remain, the remaining populations in the northern
portion of the range are particularly vulnerable to the effects of
further habitat isolation. These populations may already lack the
dispersal corridor-connectivity areas needed to recolonize should
individual occurrences be extirpated. Reintroduction or augmentation
may be required to sustain the northern portion of the species' range.
No information is available on the potential impacts of habitat
isolation in the species' range in Mexico.
Overall, habitat isolation is a current, ongoing threat that
continues to degrade and isolate Hermes copper butterfly habitat across
the species' range.
Climate Change and Drought
Scientific measurements spanning several decades demonstrate that
changes in climate are occurring, and that the rate of change has
increased since the 1950s. Global climate projections are informative,
and, in some cases, the only or the best scientific information
available. However, projected changes in climate and related impacts
can vary across and within different regions of the world (IPCC 2013,
pp. 15-16). To evaluate climate change for the region occupied by the
Hermes copper butterfly, we used climate projections ``downscaled''
from global projection models, as these provided higher resolution
information that is more relevant to spatial scales used for analyses
of a given species (Glick et al. 2011, pp. 58-61).
Southern California has a typical Mediterranean climate. Summers
are typically dry and hot while winters are cool, with minimal rainfall
averaging about 25 centimeters (10 inches) per year. The interaction of
the maritime influence of the Pacific Ocean combined with inland
mountain ranges creates an inversion layer typical of Mediterranean-
like climates. These conditions also create microclimates, where the
weather can be highly variable within small geographic areas at the
same time.
We evaluated the available historical weather data and the species'
biology to determine the likelihood of effects assuming the climate has
been and will continue to change. The typical effect of a warmer
climate, as observed with Hermes copper butterfly in lower, warmer
elevation habitats compared to higher, cooler elevations, is an earlier
flight season by several days (Thorne 1963, p. 146; Marschalek and
Deutschman 2008, p. 98). Marschalek and Klein (2010, p. 2) noted that
past records suggest a slightly earlier flight
[[Page 1027]]
season in recent years compared to the 1960s. The historical
temperature trend in Hermes copper butterfly habitats for the month of
April (when larvae are typically developing and pupating) from 1951 to
2006 can be calculated with relatively high confidence (p values from
0.001 to 0.05). The mean temperature change in occupied areas ranged
from 0.07 to 0.13 [deg]F (0.04 to 0.07 [deg]C) per year (Climate Wizard
2016), which could explain the earlier than average flight seasons.
Nevertheless, given the temporal and geographical availability of their
widespread perennial host plant, and exposure to extremes of climate
throughout their known historical range (Thorne 1963, p. 144), Hermes
copper butterfly and its host and nectar plants are not likely to be
negatively affected throughout the majority of the species' range by
phenological shifts in development of a few days.
Drought has been a major factor affecting southern California
ecosystems, starting with the driest 12-month period on record in 2013-
2014 (Swain et al. 2014, p. S3) extending through 2016. The exact
mechanism by which drought impacts Hermes copper butterflies is not
known. However, other butterfly species in southern California have
shown declines caused by drought stress on their perennial host plants
(Ehrlich et al. 1980, p. 105). Spiny redberry shows decreased health
and vegetative growth during drought years (Marschalek 2017, pers.
comm.).
Though limited, existing data suggest that drought is contributing
to the decline of Hermes copper butterflies. Systematic monitoring of
adult abundance at five sentinel sites indicates that the past 4 years
of warm, dry drought conditions negatively affected habitat suitability
and suppressed adult population sizes. At the Sycuan Peak occurrence,
where the highest ever maximum adult daily count was recorded in 2013
(41), the population dropped in number with decreased precipitation and
has remained at record low numbers for the past 4 years (1, 1, 0, and
0; Service 2018a, Figure 10; Marschalek and Deutschman 2017, p. 9;
Marschalek 2018 pers. comm.). The highest elevation occurrence (Boulder
Creek Road) was the largest of the monitored sites in 2017 following
years of drought and high temperatures with a maximum daily count of 14
(down from 20 in 2013; Service 2018a, Figure 10; Marschalek and
Deutschman 2017, p. 9). This higher elevation site received more rain
than lower sites. Therefore, though population data are limited,
drought appears to negatively impact Hermes copper butterfly
populations.
The Hermes copper butterfly is a rare species with limited
abundance at all sites across its range, many of which are also
isolated by habitat isolation, and population counts have gone down at
all sites where surveys are occurring. Temperatures have significantly
increased from 1951 to 2016; these changes may be influencing the
timing of the Hermes copper butterfly's flight season as well as their
phenology (Service 2018a, pp. 47-48). Through increased
evapotranspiration and soil drying, high temperatures increase the
indirect negative effects of drought on average quality of the host
plant and nectar resources. Still, we are unaware of any direct
negative impacts on Hermes copper butterfly life history due to these
temperature changes. Drought appears to be having a more pronounced
indirect negative effect, as the mean maximum daily adult counts have
decreased in recent years with a decrease in precipitation that may be
more of a concern at low-elevation sites.
Combined Effects
Threats working in concert have a much greater effect than threats
working individually; for example, habitat loss and isolation due to
land use change combined with wildfire together have a greater impact
on the species than wildfire alone. Multiple threats at a given
hierarchical level have combined effects that emerge at the next higher
level. For example, at the population level, habitat loss significantly
reducing the resilience of one population combined with wildfire
affecting resilience of another has a greater effect on Hermes copper
butterfly species-level redundancy and, therefore, species viability
than either threat would individually.
Threats that alone may not significantly reduce species viability
have at least additive, if not synergistic, effects on species
viability. For example, wildfire and habitat modification (type
conversion) typically have a synergistic effect on habitat suitability
in Mediterranean-type climate zones (Keeley and Brennon 2012, entire;
California Chaparral Institute 2017, entire). Wildfire increases the
rate of nonnative grass invasion, a component of the habitat
modification threat, which in turn increases fire frequency. Overall,
these factors increase the likelihood of megafires on a landscape/
species range-wide scale.
The relationship between habitat fragmentation and type conversion
is in part synergistic, particularly for Hermes copper butterflies,
which are typically sedentary with limited direct movement ability.
Fragmentation increases the rate of nonnative plant species invasion
and type conversion through increased disturbance, nitrogen deposition,
and seed dispersal, and type conversion itself reduces habitat
suitability and, therefore, habitat contiguity and dispersal corridor-
connectivity areas (increasing both habitat fragmentation and
isolation). Another example of combined impacts is climate change.
Although not a significant threat on its own, the increased temperature
resulting from climate change significantly exacerbates other threats,
especially wildfire and drought.
Small population size, low population numbers, and population
isolation are not necessarily independent factors that threaten a
species. Typically, it is the combination of small size and number and
isolation of populations in conjunction with other threats (such as the
present or threatened destruction and modification of the species'
habitat or range) that may significantly increase the probability of
species' extinction. Considering reduced numbers in recent surveys and
historically low population numbers relative to typical butterfly
population sizes, the magnitude of effects due to habitat fragmentation
and isolation, drought, and wildfire are likely exacerbated by small
population size.
Therefore, multiple threats are acting in concert to fragment,
limit, and degrade Hermes copper butterfly habitat and decrease species
resiliency, redundancy, and representation. The effects of these
threats are evidenced by the loss and isolation of many populations
throughout the range; those remaining extant populations fall within
very high fire-hazard areas.
Future Condition
To analyze species' viability, we consider the current and future
availability or condition of resources. The consequences of missing
resources are assessed to describe the species' current condition and
to project possible future conditions.
As discussed above, we generally define viability as the ability of
the species to sustain populations in the natural ecosystem for the
foreseeable future, in this case, 30 years. We chose 30 years because
it is within the range of the available hydrological and climate change
model forecasts, fire hazard period calculations, habitat-vegetation
association, and fire-return intervals.
[[Page 1028]]
Threats
To consider the possible future viability of Hermes copper
butterfly, we first analyzed the potential future conditions of ongoing
threats. Possible development still in the preliminary planning stage
(Service and CDFW 2016) could destroy occupied or suitable habitat on
private land within the North Santee occurrence. Similar concerns apply
to habitat in the Lyons Valley, Skyline Truck Trail area. Habitat
isolation is a continuing concern for Hermes copper butterfly as lack
of dispersal corridor-connectivity areas among occupied areas limits
the ability of the species to recolonize extirpated habitat.
Development outside of occupied habitat can also negatively affect the
species by creating dispersal corridor-connectivity barriers throughout
the range.
Anticipated severity of effects from future habitat development and
isolation varies across the range of the species. Within U.S. Forest
Service (USFS) lands (2,763 ha (6,829 ac)), we anticipate future
development, if any, will be limited. As it implements specific
activities within its jurisdiction, the USFS has incorporated measures
into the Cleveland National Forest Plan to address threats to Hermes
copper butterfly and its habitat (USFS 2005, Appendix B, p. 36). The
limited number of Hermes copper butterfly occurrences within BLM lands
is also unlikely to face future development pressure. Based on our
analysis, we conclude land use change, while significant when combined
with the stressor of wildfire, will not be the most significant future
source of Hermes copper butterfly population decline and loss. Some
habitat areas vulnerable to development are more important than others
to species' viability. Of particular concern are potential extirpations
due to development of the North Santee, Loveland Reservoir, Skyline
Truck Trail, North Jamul, and South Japutal core occurrences (26
percent of the core occurrences considered or presumed extant; Service
2018a, pp. 23-28, 41). Absent additional conservation of occupied
habitat and dispersal corridor-connectivity areas, effects of habitat
loss, fragmentation, and isolation will continue to extirpate
occurrences, degrade existing Hermes copper butterfly habitat, and
reduce movement of butterflies among occurrences, which reduces the
likelihood of natural recolonizations following extirpation events
(Service 2018a, p. 53 and Figure 9).
As discussed above, wildfire can permanently affect habitat
suitability. If areas are reburned at a high enough frequency,
California buckwheat may not have the time necessary to become
reestablished, rendering the habitat unsuitable for Hermes copper
butterfly (Marschalek and Klein 2010, p. 728). Loss of nectar plants is
not the only habitat effect caused by wildfire; habitat type conversion
increases flammable fuel load and fire frequency, further stressing
Hermes copper butterfly populations. Therefore, habitat modification
due to wildfire is cause for both short- and long-term habitat impact
concerns.
We expect that wildfire will continue to cause direct mortality of
Hermes copper butterflies. In light of the recent drought-influenced
wildfires in southern California, a future megafire affecting most or
all of the area burned by the Laguna Fire in 1970 (40-year-old
chaparral) could encompass the majority of extant occurrences and
result in significantly reduced species viability (Service 2018a,
Figures 7 and 8).
In the case of Hermes copper butterfly, the primary limiting
species-level resource is dispersal corridor-connectivity areas of
formerly occupied to currently occupied habitats, on which the
likelihood of post-fire recolonization depends, is a limiting factor.
We further analyzed fire frequency data to determine the effect on
occurrence status and the likelihood of extirpation over the next 30
years. Our analysis concluded that the probability of a megafire
occurring in Hermes copper butterfly's range has significantly
increased. During the past 15 years (2002-2017), there were six
megafires within Hermes copper butterfly's possible historical range
(Poomacha, Paradise, Witch, Cedar, Otay Mine, and Harris; all prior to
2008), a significant increase compared to none during the two previous
15 years (1987-2001 and 1972-1986), and only one during the 15-year
period prior to 1972 (Laguna). This represents a more than six-fold
increase in the rate of megafire occurrence over the past 15 years.
While fires meeting our megafire definition of greater than 16,187 ha
(40,000 ac) have not occurred in the past 10 years, several relatively
large fires occurred in the Hermes copper butterfly's range in 2014 and
2017. The Cocos and Bernardo fires burned approximately 809 ha (2,000
ac) and 607 ha (1,500 ac) of potentially occupied Hermes copper
butterfly habitat near the Elfin Forest and the Black Mountain
occurrences (Service 2018a, Figure 5). A smaller unnamed fire burned
approximately 38 ha (95 ac) of potential habitat near the extant core
Mission Trails occurrence (Burns et al., 2014; City News Source 2014).
In 2017, the Lilac Fire burned 1,659 ha (4,100 ac) of potentially
occupied habitat between the Bonsall and Elfin Forest occurrences. At
the current large-fire return rate, multiple megafires could impact
Hermes copper butterfly over the next 30 years, and that assumes no
further increase in rate. If the trend does not at least stabilize, the
frequency of megafires could continue to increase with even more
devastating impacts to the species.
Combined effects increase the likelihood of significant and
irreversible loss of populations, compared to individual effects. If
fewer source populations are available over time to recolonize burned
habitat when host and nectar plants have sufficiently regenerated, the
combined effects of these threats will continue to reduce resiliency,
redundancy, and representation, resulting in an increase in species
extinction risk.
Species Viability Index
In order to quantify population viability for the Hermes copper
butterfly, we calculated a viability index in our SSA (Service 2018a,
pp. 58-62). In our index calculations, the contribution of a population
to species-level redundancy depends on population-level resiliency, and
contribution to species-level representation depends on how rare
populations are in the habitat type (California Ecological Unit) it
occupies (Service 2018a, Figure 12). Species redundancy and
representation are assumed to equally influence species' viability. We
assign a 100 percent species viability index value to the baseline
state of all known historical population occurrences in the United
States. For this index calculation, we do not consider Mexican
occurrences, because there are only 3 (possibly 2) out of a total of
95, and all are presumed extirpated.
Our index of species viability is proportional to, but not equal
to, the ability of a species to sustain populations in the wild (in
other words, it is an index that should change proportionally with the
likelihood of persistence, but is not itself a probability value). As
such, our viability index uses population resilience, species
redundancy, and species representation to quantify changes in species
viability, but does not predict probability of persistence. For a
detailed description of our methodology and of viability index results,
see the Species Viability Index section of the SSA (Service 2018a, pp.
58-62).
[[Page 1029]]
To estimate species viability, we first estimated species
redundancy and species representation. To estimate a current species
redundancy value, we ranked each occurrence's resiliency value using a
scale of 0-4, with 0 being extirpated, and 4 being connected core
occurrences (Service 2018a, p. 53; Appendix III). We estimate there are
currently 18 presumed extant occurrences (rank sum of 18), 3 extant
non-core isolated (rank sum of 6), 11 extant non-core connected or core
isolated (rank sum of 33), and 13 extant core connected (rank sum of
52) occurrences for a total current species redundancy value of 109
(Service 2018a, p. 57). Based on our calculations, the species
currently retains 30 percent of its historical population redundancy.
In order to model species representation, we used California
Ecological Units (Goudey and Smith 1994 [2007]; see Table 1 above) as a
measure of habitat diversity (Service 2018a, Figure 10). Using those
units, occupancy in the Coastal Terraces (CT) ecological unit has been
reduced to 18 percent (2/11 occurrences not extirpated), in the Coastal
Hills (CH) unit to 40 percent (16/40 not extirpated), in the Western
Granitic Foothills (WGF) unit to 63 percent (22/35 not extirpated),
while the Palomar-Cuyamaca Peak Coastal Terraces (PC) unit remains at
100 percent (none extirpated). Based on these proportional values, the
species retains 55 percent of its historical species representation
(Service 2018a, p. 57).
Species viability was calculated by summing the results of the
redundancy and representation calculations (Service 2018a, p. 57); we
estimate the species currently retains no more than 43 percent of its
estimated historical viability.
Future Scenarios
Given climate change predictions of more extreme weather, less
precipitation, and warmer temperatures, and the recent trend of
relatively frequent and large fires, we can assume the primary threats
of drought and wildfire will continue to increase in magnitude. If land
managers work to conserve and manage all occupied and temporarily
unoccupied habitat, and maintain habitat contiguity and dispersal
corridor-connectivity, this should prevent further habitat loss.
Although fire and drought are difficult to control and manage for,
natural recolonization and assisted recolonization through
translocation in higher abundance years (e.g., Marschalek and
Deutschman 2016b) should allow recolonization of extirpated
occurrences.
All scenarios described below incorporate some change in
environmental conditions. However, it is important to keep in mind that
even if environmental conditions remain unchanged, the species may
continue to lose populations so that viability declines by virtue of
maintaining the current trend. Given that there is uncertainty as to
exact future trends of many threats, these future scenarios are meant
to explore the range of uncertainty and examine the species' response
across the range of likely future conditions. For more detailed
discussions of the future scenarios, see the Possible Future Conditions
section of the SSA (Service 2018a, pp. 60-62).
Scenario 1: Conditions worsen throughout the range, resulting in
increased extinction risk.
Due to a combination of increased wildfire and drought frequency
and severity, no habitat patches are recolonized, and all Hermes copper
butterfly occurrences with a resilience score of less than 4 are
extirpated (without reducing the redundancy weight of remaining
occurrences based on changed size or isolation status). These losses
would reduce the species redundancy value from 109 to 52. Based on the
resulting redundancy value ratio of 52/368, the species would retain 14
percent of its historical baseline population redundancy. There would
be no occupancy remaining in the CT ecological unit (0 percent), CH
ecological unit occupancy would be reduced from 40 to 8 percent (3/40
not extirpated), WGF unit from 63 to 26 percent (9/35 not extirpated),
and PC unit from 100 to 17 percent (1/6 not extirpated). Based on these
proportional values, the species would retain approximately 13 percent
of its historical representation. Resulting changes to the population
redundancy and representation values would cause an approximate drop
from 43 to 14 percent species viability relative to historical
conditions. We judge this scenario about as likely as not to occur in
the next 30 years.
Scenario 2: A megafire comparable to the 1970 Laguna Fire increases
extinction risk.
If there was a megafire comparable to the 1970 Laguna Fire, many
occurrences would likely be extirpated, and, due to the number of
occurrences already lost, the likelihood of any being recolonized would
be low. With regard to redundancy, these losses would result in the
additional loss of four unknown status occurrences; no small isolated
occurrences; three small, connected or large, isolated occurrences; and
five large, connected occurrences.
In this scenario, the species would retain 18 percent of its
historical baseline redundancy and 30 percent of its historical
representation. These changes to population redundancy and
representation values would result in an approximate drop in species
viability relative to historical conditions from the current 43 percent
to 24 percent. We judge this scenario more likely than not to occur in
the next 30 years.
Scenario 3: Conditions stay the same, resulting in extinction risk
staying the same.
While environmental conditions never stay the same, changes that
negatively affect populations may be offset by positive ones--for
example, continued habitat conservation and management actions such as
translocations to recolonize burned habitats. In this scenario, the
risk of wildfire remains high. Occurrence extirpations and decreased
resiliency of some populations in this scenario are balanced by habitat
recolonizations and increased resiliency in others. Species viability
would thus remain at approximately 43 percent relative to historical
conditions. Even if environmental conditions remain unchanged, the
species may continue to lose populations so that viability declines by
virtue of maintaining the current trend. We judge this scenario about
as likely as not to occur in the next 30 years.
Scenario 4: Conditions improve, resulting in decreased extinction
risk.
In this scenario, environmental threats such as fire and drought
decrease in frequency and magnitude relative to the past 30 years, and
management actions such as continued conservation and translocation
efforts are successful. Due to favorable climate conditions and
proactive management and conservation, all fire-extirpated occurrence
habitats are recolonized, no further occurrences are extirpated, and at
least half the ``unknown status'' occurrences are determined to be
extant. This scenario would result in an increase to 62 percent species
viability relative to historical conditions. We judge this scenario
unlikely to occur in the next 30 years.
Determination of Hermes Copper Butterfly Status
Section 4 of the Act (16 U.S.C. 1533) and its implementing
regulations (50 CFR part 424) set forth the procedures for determining
whether a species meets the definition of ``endangered species'' or
``threatened species.'' The Act defines an ``endangered species'' as a
species
[[Page 1030]]
that is ``in danger of extinction throughout all or a significant
portion of its range,'' and a ``threatened species'' as a species that
is ``likely to become an endangered species within the foreseeable
future throughout all or a significant portion of its range.'' The Act
requires that we determine whether a species meets the definition of
``endangered species'' or ``threatened species'' because of any of the
following factors: (A) The present or threatened destruction,
modification, or curtailment of its habitat or range; (B)
Overutilization for commercial, recreational, scientific, or
educational purposes; (C) Disease or predation; (D) The inadequacy of
existing regulatory mechanisms; or (E) Other natural or manmade factors
affecting its continued existence.
We have carefully assessed the best scientific and commercial
information available regarding the past, present, and future threats
to the Hermes copper butterfly, and we have determined the following
factors are impacting the resiliency, redundancy, and representation of
the species: wildfire (Factor A), land use change (Factor A), habitat
fragmentation and isolation (Factor A), climate change (Factor E), and
drought (Factor E); as well as the cumulative effect of these on the
species, including synergistic interactions between the threats and the
vulnerability of the species resulting from small population size. We
also considered the effect of existing regulatory mechanisms (Factor D)
on the magnitude of existing threats. We also note that potential
impacts associated with overutilization (Factor B), disease (Factor C),
and predation (Factor C) were evaluated but found to have little to no
impact on species viability (Service 2018a, p. 50); thus, we did not
discuss them in this document.
Individually, land use change (Factor A), habitat fragmentation and
isolation (Factor A), climate change (Factor A), and drought (Factor E)
are impacting the Hermes copper butterfly and its habitat. Although
most impacts from land use change have occurred in the past, and some
existing regulations are in place to protect remaining occurrences, 36
percent of historically occupied habitat is not protected and remains
at risk from land use change. As a result of past development, which
has contributed to the loss of 23 occurrences (Table 1), species
representation has been reduced through loss of most occurrences in
ecological units closest to the coast, while redundancy has decreased
through loss of overall numbers of occurrences. Remaining habitat has
been fragmented, decreasing species resiliency by removing habitat
corridors and thus decreasing the species' ability to recolonize
previously extirpated occurrences. Climate change is currently having
limited effects on the species; however, drought is a significant
threat resulting in degradation of habitat and decreased numbers of
Hermes copper butterflies at all monitored occurrences, with the
exception of the highest elevation occurrence that receives the most
rainfall.
Wildfire (Factor A) is the most substantial threat currently
impacting Hermes copper butterfly and is the most significant source of
ongoing population decline and loss of occurrences. Large fires can
eliminate source populations before previously burned habitat can be
recolonized, and can result in long-term or permanent loss of butterfly
populations. Since 2003, wildfire is estimated to have caused or
contributed to the extirpation of 31 U.S. occurrences (and 3 in
Mexico), only 3 of those are known to have been apparently repopulated.
Wildfire frequency has significantly increased in Hermes copper
butterfly habitat since 1970, and the likelihood of additional
megafires occurring over the next 30 years is high. Frequent wildfire
degrades available habitat through conversion of suitable habitat to
nonnative grasslands, and we anticipate that fire will continue to
modify and degrade Hermes copper butterfly habitat into the foreseeable
future. Furthermore, though fuel-reduction activities are ongoing
throughout much of the species' range, megafires cannot be controlled
through regulatory mechanisms. We expect the ongoing effects of
wildfire will continue to result in substantial reductions of species
resiliency, redundancy, and representation for the Hermes copper
butterfly.
Combined effects of threats have a greater impact on the Hermes
copper butterfly than each threat acting individually. Wildfire
increases the rate of nonnative grass invasion, which in turn increases
fire frequency. Overall, these factors increase the likelihood of
megafires on a range-wide scale now and in the foreseeable future. The
combination of habitat fragmentation and isolation (as a result of past
and potential limited future urban development), existing dispersal
barriers, and megafires (that encompass vast areas and are increasing
in frequency) that limit, and degrade Hermes copper butterfly habitat,
results in substantial reduction in species resiliency, redundancy, and
representation. Furthermore, remaining extant populations fall within
very high fire-hazard areas, increasing the risk that a single megafire
could result in the extirpation of the majority of extant occurrences.
Additionally, effects from habitat fragmentation and isolation,
megafire, and drought are exacerbated by the small population size and
isolated populations of the Hermes copper butterfly. Overall, the
combined effects of threats are currently decreasing the resiliency,
redundancy, and representation of the Hermes copper butterfly, and we
expect that they will continue to decrease species viability into the
foreseeable future.
After evaluating threats to the species and assessing the
cumulative effect of the threats under the section 4(a)(1) factors, we
find that that the Hermes copper butterfly meets the definition of a
threatened species. Multiple threats are impacting Hermes copper
butterfly across its range, and the most probable future scenarios
predict that species viability will either remain at 43 percent of
historical levels, or decrease to 24 percent or 14 percent of
historical viability within the foreseeable future. Thus, after
assessing the best available information, we conclude that the Hermes
copper butterfly is likely to become in danger of extinction within the
foreseeable future throughout all of its range. We find that the Hermes
copper butterfly is not currently in danger of extinction, because
although a megafire has the potential to extirpate a high number of
occurrences, it is not likely that a single megafire would impact all
occurrences, particularly given the urban area separating the most
northern and southern occurrences. Furthermore, even the future
scenarios resulting in the lowest species viability do not predict that
the species is currently in danger of extinction. Therefore, threatened
status is the most appropriate for the species.
Determination of Status Throughout a Significant Portion of Its Range
Under the Act and our implementing regulations, a species may
warrant listing if it is in danger of extinction or likely to become so
in the foreseeable future throughout all or a significant portion of
its range. Because we have determined that the Hermes copper butterfly
is likely to become an endangered species within the foreseeable future
throughout all of its range, we find it unnecessary to proceed to an
evaluation of potentially significant portions of the range. Where the
best available information allows the Services to determine a status
for the species rangewide, that determination should be given
conclusive weight because a rangewide determination of status more
accurately reflects the
[[Page 1031]]
species' degree of imperilment and better promotes the purposes of the
Act. Under this reading, we should first consider whether the species
warrants listing ``throughout all'' of its range and proceed to conduct
a ``significant portion of its range'' analysis if, and only if, a
species does not qualify for listing as either an endangered or a
threatened species according to the ``throughout all'' language. We
note that the court in Desert Survivors v. Department of the Interior,
No. 16-cv-01165-JCS, 2018 WL 4053447 (N.D. Cal. Aug. 24, 2018), did not
address this issue, and our conclusion is therefore consistent with the
opinion in that case.
Determination of Status
Our review of the best available scientific and commercial
information indicates that the Hermes copper butterfly meets the
definition of a threatened species. Therefore, we propose to list the
Hermes copper butterfly as a threatened species in accordance with
sections 3(20) and 4(a)(1) of the Act.
Critical Habitat
Background
Critical habitat is defined in section 3 of the Act as:
(1) The specific areas within the geographical area occupied by the
species, at the time it is listed in accordance with the Act, on which
are found those physical or biological features
(a) Essential to the conservation of the species, and
(b) Which may require special management considerations or
protection; and
(2) Specific areas outside the geographical area occupied by the
species at the time it is listed, upon a determination that such areas
are essential for the conservation of the species.
Our regulations at 50 CFR 424.02 define the geographical area
occupied by the species as: An area that may generally be delineated
around species' occurrences, as determined by the Secretary (i.e.,
range). Such areas may include those areas used throughout all or part
of the species' life cycle, even if not used on a regular basis (e.g.,
migratory corridors, seasonal habitats, and habitats used periodically,
but not solely by vagrant individuals).
Conservation, as defined under section 3 of the Act, means to use
and the use of all methods and procedures that are necessary to bring
an endangered or threatened species to the point at which the measures
provided pursuant to the Act are no longer necessary. Such methods and
procedures include, but are not limited to, all activities associated
with scientific resources management such as research, census, law
enforcement, habitat acquisition and maintenance, propagation, live
trapping, and transplantation, and, in the extraordinary case where
population pressures within a given ecosystem cannot be otherwise
relieved, may include regulated taking.
Critical habitat receives protection under section 7 of the Act
through the requirement that Federal agencies ensure, in consultation
with the Service, that any action they authorize, fund, or carry out is
not likely to result in the destruction or adverse modification of
critical habitat. The designation of critical habitat does not affect
land ownership or establish a refuge, wilderness, reserve, preserve, or
other conservation area. Such designation does not allow the government
or public to access private lands. Such designation does not require
implementation of restoration, recovery, or enhancement measures by
non-Federal landowners. Where a landowner requests Federal agency
funding or authorization for an action that may affect a listed species
or critical habitat, the consultation requirements of section 7(a)(2)
of the Act would apply, but even in the event of a destruction or
adverse modification finding, the obligation of the Federal action
agency and the landowner is not to restore or recover the species, but
to implement reasonable and prudent alternatives to avoid destruction
or adverse modification of critical habitat.
Under the first prong of the Act's definition of critical habitat,
areas within the geographical area occupied by the species at the time
it was listed are included in a critical habitat designation if they
contain physical or biological features (1) which are essential to the
conservation of the species and (2) which may require special
management considerations or protection. For these areas, critical
habitat designations identify, to the extent known using the best
scientific and commercial data available, those physical or biological
features that are essential to the conservation of the species (such as
space, food, cover, and protected habitat). In identifying those
physical or biological features that occur in specific areas, we focus
on the specific features that are essential to the life-history needs
of the species, including but not limited to, water characteristics,
soil type, geological features, prey, vegetation, symbiotic species, or
other features. A feature may be a single habitat characteristic, or a
more complex combination of habitat characteristics. Features may
include habitat characteristics that support ephemeral or dynamic
habitat conditions. Features may also be expressed in terms relating to
principles of conservation biology, such as patch size, distribution
distances, and connectivity.
Under the second prong of the Act's definition of critical habitat,
we can designate critical habitat in areas outside the geographical
area occupied by the species at the time it is listed, upon a
determination that such areas are essential for the conservation of the
species. When designating critical habitat, the Secretary will first
evaluate areas occupied by the species. The Secretary will only
consider unoccupied areas to be essential where a critical habitat
designation limited to geographical areas occupied by the species would
be inadequate to ensure the conservation of the species. In addition,
for an unoccupied area to be considered essential, the Secretary must
determine that there is a reasonable certainty both that the area will
contribute to the conservation of the species and that the area
contains one or more of those physical or biological features essential
to the conservation of the species.
Section 4 of the Act requires that we designate critical habitat on
the basis of the best scientific data available. Further, our Policy on
Information Standards Under the Endangered Species Act (published in
the Federal Register on July 1, 1994 (59 FR 34271)), the Information
Quality Act (section 515 of the Treasury and General Government
Appropriations Act for Fiscal Year 2001 (Pub. L. 106-554; H.R. 5658)),
and our associated Information Quality Guidelines, provide criteria,
establish procedures, and provide guidance to ensure that our decisions
are based on the best scientific data available. They require our
biologists, to the extent consistent with the Act and with the use of
the best scientific data available, to use primary and original sources
of information as the basis for recommendations to designate critical
habitat.
When we are determining which areas should be designated as
critical habitat, our primary source of information is generally the
information from the species status assessment (SSA) report and
information developed during the listing process for the species.
Additional information sources may include any generalized conservation
strategy, criteria, or outline that may
[[Page 1032]]
have been developed for the species, the recovery plan for the species,
articles in peer-reviewed journals, conservation plans developed by
States and counties, scientific status surveys and studies, biological
assessments, other unpublished materials, or experts' opinions or
personal knowledge.
Habitat is dynamic, and species may move from one area to another
over time. We recognize that critical habitat designated at a
particular point in time may not include all of the habitat areas that
we may later determine are necessary for the recovery of the species.
For these reasons, a critical habitat designation does not signal that
habitat outside the designated area is unimportant or may not be needed
for recovery of the species. Areas that are important to the
conservation of the species, both inside and outside the critical
habitat designation, will continue to be subject to: (1) Conservation
actions implemented under section 7(a)(1) of the Act, (2) regulatory
protections afforded by the requirement in section 7(a)(2) of the Act
for Federal agencies to ensure their actions are not likely to
jeopardize the continued existence of any endangered or threatened
species, and (3) section 9 of the Act's prohibitions on taking any
individual of the species, including taking caused by actions that
affect habitat. Federally funded or permitted projects affecting listed
species outside their designated critical habitat areas may still
result in jeopardy findings in some cases. These protections and
conservation tools will continue to contribute to recovery of this
species. Similarly, critical habitat designations made on the basis of
the best available information at the time of designation will not
control the direction and substance of future recovery plans, habitat
conservation plans (HCPs), or other species conservation planning
efforts if new information available at the time of these planning
efforts calls for a different outcome.
Prudency Determination
Section 4(a)(3) of the Act, as amended, and implementing
regulations (50 CFR 424.12), require that, to the maximum extent
prudent and determinable, the Secretary shall designate critical
habitat at the time the species is determined to be an endangered or
threatened species. Our regulations (50 CFR 424.12(a)(1)) state that
the Secretary may, but is not required to, determine that a designation
would not be prudent in the following circumstances:
(i) The species is threatened by taking or other human activity and
identification of critical habitat can be expected to increase the
degree of such threat to the species;
(ii) The present or threatened destruction, modification, or
curtailment of a species' habitat or range is not a threat to the
species, or threats to the species' habitat stem solely from causes
that cannot be addressed through management actions resulting from
consultations under section 7(a)(2) of the Act;
(iii) Areas within the jurisdiction of the United States provide no
more than negligible conservation value, if any, for a species
occurring primarily outside the jurisdiction of the United States;
(iv) No areas meet the definition of critical habitat; or
(v) The Secretary otherwise determines that designation of critical
habitat would not be prudent based on the best scientific data
available.
We did not identify any of the factors above to apply to the Hermes
copper butterfly. Therefore, we find designation of critical habitat is
prudent for the species.
Critical Habitat Determinability
Having determined that designation is prudent, under section
4(a)(3) of the Act we must find whether critical habitat for the Hermes
copper butterfly is determinable. Our regulations at 50 CFR
424.12(a)(2) state that critical habitat is not determinable when one
or both of the following situations exist:
(i) Data sufficient to perform required analyses are lacking, or
(ii) The biological needs of the species are not sufficiently well
known to identify any area that meets the definition of ``critical
habitat.''
When critical habitat is not determinable, the Act allows the
Service an additional year to publish a critical habitat designation
(16 U.S.C. 1533(b)(6)(C)(ii)).
We reviewed the available information pertaining to the biological
needs of the species and habitat characteristics where the species is
located. This and other information represent the best scientific data
available and led us to conclude that the designation of critical
habitat is determinable for the Hermes copper butterfly.
Physical or Biological Features
In accordance with section 3(5)(A)(i) of the Act and regulations at
50 CFR 424.12(b), in determining which areas within the geographical
area occupied by the species at the time of listing to designate as
critical habitat, we consider the physical or biological features that
are essential to the conservation of the species and which may require
special management considerations or protection. For example, physical
features might include gravel of a particular size required for
spawning, alkali soil for seed germination, protective cover for
migration, or susceptibility to flooding or fire that maintains
necessary early-successional habitat characteristics. Biological
features might include prey species, forage grasses, specific kinds or
ages of trees for roosting or nesting, symbiotic fungi, or a particular
level of nonnative species consistent with conservation needs of the
listed species. The features may also be combinations of habitat
characteristics and may encompass the relationship between
characteristics or the necessary amount of a characteristic needed to
support the life history of the species. In considering whether
features are essential to the conservation of the species, the Service
may consider an appropriate quality, quantity, and spatial and temporal
arrangement of habitat characteristics in the context of the life-
history needs, condition, and status of the species. These include, but
are not limited to:
(1) Space for individual and population growth and for normal
behavior;
(2) Food, water, air, light, minerals, or other nutritional or
physiological requirements;
(3) Cover or shelter;
(4) Sites for breeding, reproduction, or rearing (or development)
of offspring; and
(5) Habitats that are protected from disturbance or are
representative of the historic geographical and ecological
distributions of a species.
As discussed above, we conducted a Species Status Assessment (SSA)
for Hermes copper butterfly, which is an evaluation of the best
available scientific and commercial data on the status of the species.
The SSA provides the scientific information upon which this proposed
critical habitat determination is based (Service 2018a).
Space for Individual and Population Growth and for Normal Behavior
Patches of spiny redberry host plants, including post-fire stumps
that can resprout, are required to support Hermes copper butterfly
populations and subpopulations; the number of plants in a patch
required to support a subpopulation is unknown. Because we know that
Hermes copper butterflies are periodically extirpated from patches of
host plants by wildfire, and subsequently re-colonize these patches
(Table 1), we can assume functional metapopulation dynamics are
important
[[Page 1033]]
for species viability. The time-scale for recolonization from source
subpopulations may be 10-30 years. Spiny redberry is often associated
with the transition between sage scrub and chaparral vegetation
associations, but may occur in a variety of vegetation associations.
Such host plant patches occur between 30-1,341 m (100-4,400 ft) above
sea level.
Food, Water, Air, Light, Minerals, or Other Nutritional or
Physiological Requirements
Adults require relatively abundant nectar sources associated with
patches of their host plants, spiny redberry. Plants specifically
identified as significant nectar sources include Eriogonum fasciculatum
(California buckwheat) and Eriophylum confirtiflorum (golden yarrow).
Any other butterfly nectar source (short flower corolla) species found
associated with spiny redberry that together provide nectar similar in
abundance to that typically provided by California buckwheat would also
meet adult nutritional requirements. Larvae feed on the leaves of the
host plant.
Sites for Breeding, Reproduction, or Rearing (or Development) of
Offspring
All immature life-cycle stages develop on the host plant, spiny
redberry. Eggs are deposited on branches, caterpillars are sheltered on
and fed by leaves, and chrysalides are attached to live host plant
leaves.
Habitats That Are Protected From Disturbance and Representative of the
Historic Geographical and Ecological Distributions of a Species
Corridor (connective) habitat areas containing adult nectar sources
are required among occupied (source subpopulations) and formerly
occupied host plant patches, in order to maintain long-term the number
and distribution of source subpopulations required to support resilient
metapopulation species viability.
Protected spiny redberry host plants must be distributed in four
California Ecological Units to maintain species representation.
Summary of Essential Physical or Biological Features
We derive the specific physical or biological features essential to
the conservation of the Hermes copper butterfly from studies of this
species' habitat, ecology, and life history as described above and in
the Species Status Assessment for the Hermes Copper Butterfly (Service
2018a).
We have determined that the physical or biological features
essential to the conservation of the Hermes copper butterfly consist of
the following components when found between 30 m and 1,341 m above sea
level, and located in habitat providing an appropriate quality,
quantity, and spatial and temporal arrangement of these habitat
characteristics in the context of the life-history needs, condition,
and status of the species (see Criteria Used to Identify Critical
Habitat below):
(1) Spiny redberry host plants.
(2) Nectar sources for adult butterflies.
Special Management Considerations or Protection
When designating critical habitat, we assess whether the specific
areas within the geographical area occupied by the species at the time
of listing contain features which are essential to the conservation of
the species and which may require special management considerations or
protection.
The features essential to the conservation of this species may
require special management considerations or protection to reduce or
mitigate the following threats: Wildfire, land use change, habitat
fragmentation and isolation, and climate change and drought. In
particular, habitat that has at any time supported a subpopulation will
require protection from land use change that would permanently remove
host plant patches and nectar sources, and habitat containing adult
nectar sources that connects such host plant patches through which
adults are likely to move. These management activities will protect
from losses of habitat large enough to preclude conservation of the
species.
Additionally, when considering the conservation value of areas
proposed as critical habitat within each unit, especially among
subpopulations within the same California Ecological Unit, maintenance
of dispersal corridor-connectivity among them should be a conservation
planning focus for stakeholders and regulators (such connectivity was
assumed by the criteria used to delineate proposed critical habitat
units).
Criteria Used To Identify Critical Habitat
As required by section 4(b)(2) of the Act, we use the best
scientific data available to designate critical habitat. In accordance
with the Act and our implementing regulations at 50 CFR 424.12(b), we
review available information pertaining to the habitat requirements of
the species and identify specific areas within the geographical area
occupied by the species at the time of listing and any specific areas
outside the geographical area occupied by the species to be considered
for designation as critical habitat. We are not currently proposing to
designate any areas outside the geographical area occupied by the
species.
Sources of data for this species and its habitat requirements
include multiple databases maintained by universities and by State
agencies in San Diego County and elsewhere in California, white papers
by researchers involved in conservation activities and planning, peer-
reviewed articles on this species and relatives, agency reports, and
numerous survey reports for projects throughout the species' range.
The current distribution of the Hermes copper butterfly is much
reduced from its historical distribution. We anticipate that recovery
will require continued protection of existing subpopulations and
habitat, protection of dispersal corridor connectivity areas among
subpopulations, as well as re-establishing subpopulations where they
have been extirpated within the species' current range in order to
ensure adequate numbers of subpopulations to maintain metapopulations.
This activity will help to ensure future catastrophic events, such as
wildfire, cannot simultaneously affect all known populations.
Geographical Area Occupied at the Time of Listing
The following meets the definition of the geographical area
currently occupied by the Hermes copper butterfly in the United States:
Between approximately 33[deg] 20' 0'' North latitude and south to the
international border with Mexico, and from approximately 30 m (100 ft)
in elevation near the coast, east up to 1,340 m (4,400 ft) in elevation
near the mountains (Service 2018a, Figure 5). This includes those
specific areas within the geographical area occupied by the species at
this time or the currently known range of the species.
The proposed critical habitat designation does not include all
areas within the geographical area occupied by the species at this
time. Rather, it includes those lands with physical and biological
features essential to the conservation of the species which may require
special management or protections. We also limited the proposal to
specific areas historically or currently known to support the species.
This proposal focuses on maintaining areas that are known to have
supported those known occurrences we consider
[[Page 1034]]
required for survival and recovery of the species. That is, areas
required to maintain species' viability by virtue of occurrence
contribution to species' redundancy (core status, or subpopulation
contribution to metapopulation dynamics/resilience), and contribution
to continued species representation within all California Ecological
Units. Hermes copper butterflies may be found in areas without
documented populations (and perhaps even some areas slightly beyond
that range), and would likely be important to the conservation of the
species.
In summary, we delineated critical habitat unit boundaries using
the following criteria:
(1) We started by considering all high-accuracy record-based
occurrences mapped in the SSA (accuracy codes 1 and 2 in Table 1;
Service 2018a, p. 20) within the geographical area currently occupied
by the species. Occurrences were mapped as intersecting areas within
0.5 km (0.3 mi) of high geographic accuracy records, and areas within
0.5 km (0.3 mi) of any spiny redberry record within 1 km (0.6 mi) of
these butterfly records. These distances are based on the maximum
recapture distance of 1.1 km (0.7 mi) recorded by Marschalek and
Klein's (2010, p. 1) intra-habitat movement study.
(2) We removed seven non-core occurrences that were more than 3 km
(1.9 mi) from a core occurrence, or otherwise deemed not-essential for
metapopulation resilience or continued species representation within
all California Ecological Units.
(3) We added habitat contiguity areas between occurrences that were
0.5 km (0.3 mi) or less apart that are likely to be within a single
subpopulation distribution. To do this, we included the area within 0.5
km (0.3 mi) of the midpoint of the tangent between the two closest
butterfly records in each occurrence (to capture likely unrecorded
physical or biological features).
(4) Using the best available vegetation association GIS database,
we removed areas within 95 sub-categories (out of 177) not likely to
contain host plants, such as those associated with streams.
(5) We removed by visual review of the best available satellite
imagery all clearly developed areas, areas of disturbed vegetation such
as nonnative grasslands, and granitic formations not likely to contain
host plants, at the scale of approximately 1.2 ha (3 ac).
When determining proposed critical habitat boundaries, we made
every effort to avoid including developed areas such as lands covered
by buildings, pavement, and other structures because such lands lack
physical or biological features necessary for the Hermes copper
butterfly. The scale of the maps we prepared under the parameters for
publication within the Code of Federal Regulations may not reflect the
exclusion of such developed lands. Any such lands inadvertently left
inside critical habitat boundaries shown on the maps of this proposed
rule have been excluded by text in the proposed rule and are not
proposed for designation as critical habitat. Therefore, if the
critical habitat is finalized as proposed, a Federal action involving
these lands would not trigger section 7 consultation with respect to
critical habitat and the requirement of no adverse modification within
mapped areas unless the land contained Hermes copper butterfly physical
or biological features, or the specific action would affect the
physical or biological features in adjacent critical habitat.
We are proposing for designation of critical habitat lands that we
have determined are within the geographical area currently occupied by
the species and contain one or more of the physical or biological
features that are essential to support life-history processes of the
species. Three units are proposed for designation.
The critical habitat designation is defined by the map or maps, as
modified by any accompanying regulatory text, presented at the end of
this document in the Proposed Regulation Promulgation section. We
include more detailed information on the boundaries of the critical
habitat designation in the preamble of this document. We will make the
coordinates or plot points or both on which each map is based available
to the public on http://www.regulations.gov at Docket No. FWS-R8-ES-
2017-0053, on our internet sites http://www.fws.gov/carlsbad, and at
the field office responsible for the designation (see FOR FURTHER
INFORMATION CONTACT).
Proposed Critical Habitat Designation
We are proposing three units as critical habitat for the Hermes
copper butterfly. The critical habitat areas described below constitute
our current best assessment of areas that meet the definition of
critical habitat for the Hermes copper butterfly. The three units we
propose as critical habitat are: (1) Lopez Canyon; (2) Miramar/Santee;
and (3) Southeast San Diego. Table 2 shows the land ownership and
approximate areas of the proposed designated areas for Hermes copper
butterfly.
Table 2--Proposed Critical Habitat Units for Hermes Copper Butterfly
[Area estimates reflect all land within critical habitat unit
boundaries]
------------------------------------------------------------------------
Land ownership by Approximate size
Critical habitat unit type in hectares of unit in
(acres) hectares (acres)
------------------------------------------------------------------------
1. Lopez Canyon............... Federal: 0; State: 0; 166 (410)
Local Jurisdiction:
88 (218); Private:
77 (191).
2. Miramar/Santee............. Federal: 0; State: 2,870 (7,092)
111 (275); Local
Jurisdiction: 1,113
(2,750); Private:
1,646 (4,068).
3. Southeast San Diego........ Federal: 4,213 11,213 (27,709)
(10,411); State:
2,074 (5,124); Local
Jurisdiction: 1,162
(2,871); Private:
3,765 (9,303).
-----------------------------------------
Total......................... Federal: 4,213 14,249 (35,211)
(10,411); State:
2,185 (5,399); Local
Jurisdiction: 2,363
(5,839); Private:
5,488 (13,562).
------------------------------------------------------------------------
Note: Area sizes may not sum due to rounding or unit conversion.
We present brief descriptions of all proposed critical habitat
units, and reasons why they meet the definition of critical habitat for
the Hermes copper butterfly, below. Although conservation and
management of dispersal corridor connectivity areas among occurrences
proposed for designation as critical habitat will also be required for
species
[[Page 1035]]
survival and recovery (occurrence isolation was a factor that
eliminated occurrences in Criterion (2) above), the best available data
do not provide sufficient information to identify the specific location
of these lands at this time. Therefore, we did not include dispersal
corridor connectivity areas among occurrences in the proposed critical
habitat units.
Unit 1: Lopez Canyon
Unit 1 consists of 166 ha (410 ac) within the geographical area
currently occupied by the species and contains all of the essential
physical or biological features. The physical or biological features
may require special management to protect them from wildfire and land
use change, although the latter is less likely in this unit (see
Special Management Considerations and Protection above). This area
encompasses the core Lopez Canyon occurrence, the only known extant
occurrence that falls within the Coastal Terraces Ecological Unit
(Table 1), and is therefore required to maintain species
representation. Unit 1 is within the jurisdiction of the City of San
Diego, associated with the communities of Sorrento Valley and Mira
Mesa. This unit is surrounded by development. Habitat consists
primarily of canyon slopes. The majority of this unit falls within the
Los Pe[ntilde]asquitos Canyon Preserve jointly owned and managed by the
City and County of San Diego. The primary objective of Los
Pe[ntilde]asquitos Canyon Preserve is the preservation and enhancement
of natural and cultural resources. The preserve master plan states that
recreational and educational use by the public is a secondary
objective, development should be consistent with these objectives, and
public use should not endanger the unique preserve qualities. Land use
in this unit is almost entirely recreation and conservation.
Unit 2: Miramar/Santee
Unit 2 consists of 2,870 ha (7,092 ac) within the geographical area
currently occupied by the species and contains all of the essential
physical or biological features. The physical or biological features
may require special management to protect them from land use change and
wildfire, although wildfire will be challenging to manage for in this
unit because of its size and risk of megafire (see Special Management
Considerations and Protection above). This area encompasses the core
Sycamore Canyon, North Santee, and Mission Trails occurrences, as well
as non-core occurrences connected to core occurrences also required for
metapopulation resilience and continued species representation in two
California Ecological Units (Coastal Hills and Western Granitic
Foothills). This unit includes half of the extant/presumed extant core
occurrences in the Coastal Hills California Ecological Unit (the other
half are in Unit 3). Unit 2 mostly surrounds the eastern portion of
Marine Corps Air Station Miramar (lands encompassing areas that also
meet the definition of critical habitat and would be included in this
unit but are exempt from designation), falling primarily within the
jurisdictions of the City of San Diego, but also within the City of
Santee and unincorporated areas of San Diego County. In this unit, the
City of San Diego owns and manages the over 2,830-ha (7,000-ac) Mission
Trails Regional Park (887 ha (2,192 ac) in this unit) and the County
owns and manages the 919-ha (2,272-ac) Gooden Ranch/Sycamore Canyon
County preserve (198 ha (488 ac) included in this unit).
Unit 3: Southeast San Diego
Unit 3 consists of 11,213 ha (27,709 ac) within the geographical
area currently occupied by the species and contains all of the
essential physical or biological features. The physical or biological
features may require special management to protect them from land use
change and wildfire, although wildfire will be challenging to manage in
this unit because of its size and risk of megafire (see Special
Management Considerations and Protection above). This unit
configuration would conserve the essential contiguous habitat patches
and dispersal corridor connectivity among the occurrences. This area
encompasses the majority of extant and connected occurrences within the
species' current range that are required for metapopulation resilience
and continued species representation in two California Ecological
Units. This unit includes all of the extant/presumed extant core
occurrences in the Western Granitic Foothills and Palomar-Cuyamaca Peak
California Ecological Units. The majority of the Crestridge core
occurrence falls within the Crestridge Ecological Reserve jointly
managed by the Endangered Habitats Conservancy and the California
Department of Fish and Wildlife. The majority of the Alpine core
occurrence falls within the Wright's Field preserve owned and managed
by the Back Country Land Trust. Thirty-eight percent of this unit
(4,213 ha (10,411 ac)) is owned and managed by the U.S. Fish and
Wildlife Service, the U.S. Forest Service, and the Bureau of Land
Management.
Effects of Critical Habitat Designation
Section 7 Consultation
Section 7(a)(2) of the Act requires Federal agencies, including the
Service, to ensure that any action they fund, authorize, or carry out
is not likely to jeopardize the continued existence of any endangered
species or threatened species or result in the destruction or adverse
modification of designated critical habitat of such species. In
addition, section 7(a)(4) of the Act requires Federal agencies to
confer with the Service on any agency action which is likely to
jeopardize the continued existence of any species proposed to be listed
under the Act or result in the destruction or adverse modification of
proposed critical habitat.
We published a final regulation with a revised definition of
destruction or adverse modification on August 27, 2019 (84 FR 44976).
Destruction or adverse modification means a direct or indirect
alteration that appreciably diminishes the value of critical habitat as
a whole for the conservation of a listed species.
If a Federal action may affect a listed species or its critical
habitat, the responsible Federal agency (action agency) must enter into
consultation with us. Examples of actions that are subject to the
section 7 consultation process are actions on State, Tribal, local, or
private lands that require a Federal permit (such as a permit from the
U.S. Army Corps of Engineers under section 404 of the Clean Water Act
(33 U.S.C. 1251 et seq.) or a permit from the Service under section 10
of the Act) or that involve some other Federal action (such as funding
from the Federal Highway Administration, Federal Aviation
Administration, or the Federal Emergency Management Agency). Federal
actions not affecting listed species or critical habitat, and actions
on State, Tribal, local, or private lands that are not federally
funded, authorized, or carried out by a Federal Agency, do not require
section 7 consultation.
As a result of section 7 consultation, we document compliance with
the requirements of section 7(a)(2) through our issuance of:
(1) A concurrence letter for Federal actions that may affect, but
are not likely to adversely affect, listed species or critical habitat;
or
(2) A biological opinion for Federal actions that may affect, and
are likely to adversely affect, listed species or critical habitat.
When we issue a biological opinion concluding that a project is
likely to jeopardize the continued existence of a
[[Page 1036]]
listed species and/or destroy or adversely modify critical habitat, we
provide reasonable and prudent alternatives to the project, if any are
identifiable, that would avoid the likelihood of jeopardy and/or
destruction or adverse modification of critical habitat. We define
``reasonable and prudent alternatives'' (at 50 CFR 402.02) as
alternative actions identified during consultation that:
(1) Can be implemented in a manner consistent with the intended
purpose of the action,
(2) Can be implemented consistent with the scope of the Federal
agency's legal authority and jurisdiction,
(3) Are economically and technologically feasible, and
(4) Would, in the Director's opinion, avoid the likelihood of
jeopardizing the continued existence of the listed species and/or avoid
the likelihood of destroying or adversely modifying critical habitat.
Reasonable and prudent alternatives can vary from slight project
modifications to extensive redesign or relocation of the project. Costs
associated with implementing a reasonable and prudent alternative are
similarly variable.
Regulations at 50 CFR 402.16 require Federal agencies to reinitiate
formal consultation on previously reviewed actions. These requirements
apply when the Federal agency has retained discretionary involvement or
control over the action (or the agency's discretionary involvement or
control is authorized by law) and, subsequent to the previous
consultation, we have listed a new species or designated critical
habitat that may be affected by the Federal action, or the action has
been modified in a manner that affects the species or critical habitat
in a way not considered in the previous consultation. In such
situations, Federal agencies sometimes may need to request reinitiation
of consultation with us, but the regulations also specify some
exceptions to the requirement to reinitiate consultation on specific
land management plans after subsequently listing a new species or
designating new critical habitat. See the regulations for a description
of those exceptions.
Application of the ``Adverse Modification'' Standard
The key factor related to the destruction or adverse modification
determination is whether implementation of the proposed Federal action
directly or indirectly alters the designated critical habitat in a way
that appreciably diminishes the value of the critical habitat as a
whole for the conservation of the listed species. As discussed above,
the role of critical habitat is to support physical or biological
features essential to the conservation of a listed species and provide
for the conservation of the species.
Section 4(b)(8) of the Act requires us to briefly evaluate and
describe, in any proposed or final regulation that designates critical
habitat, activities involving a Federal action that may violate 7(a)(2)
of the Act by destroying or adversely modifying such designation.
Activities that the Services may, during a consultation under
section 7(a)(2) of the Act, find are likely to destroy or adversely
modify critical habitat include, but are not limited to:
Actions that would remove spiny redberry host plants or a
significant amount of nectar source plants. Such activities could
include, but are not limited to, residential and commercial
development, and conversion to agricultural orchards or fields. These
activities could permanently eliminate or reduce the habitat necessary
for the growth and reproduction of Hermes copper butterflies.
Exemptions
Application of Section 4(a)(3) of the Act
The Sikes Act Improvement Act of 1997 (Sikes Act) (16 U.S.C. 670a)
required each military installation that includes land and water
suitable for the conservation and management of natural resources to
complete an integrated natural resources management plan (INRMP) by
November 17, 2001. An INRMP integrates implementation of the military
mission of the installation with stewardship of the natural resources
found on the base. Each INRMP includes:
(1) An assessment of the ecological needs on the installation,
including the need to provide for the conservation of listed species;
(2) A statement of goals and priorities;
(3) A detailed description of management actions to be implemented
to provide for these ecological needs; and
(4) A monitoring and adaptive management plan.
Among other things, each INRMP must, to the extent appropriate and
applicable, provide for fish and wildlife management; fish and wildlife
habitat enhancement or modification; wetland protection, enhancement,
and restoration where necessary to support fish and wildlife; and
enforcement of applicable natural resource laws.
The National Defense Authorization Act for Fiscal Year 2004 (Pub.
L. 108-136) amended the Act to limit areas eligible for designation as
critical habitat. Specifically, section 4(a)(3)(B)(i) of the Act (16
U.S.C. 1533(a)(3)(B)(i)) provides that: ``The Secretary shall not
designate as critical habitat any lands or other geographic areas owned
or controlled by the Department of Defense, or designated for its use,
that are subject to an integrated natural resources management plan
prepared under section 101 of the Sikes Act (16 U.S.C. 670a), if the
Secretary determines in writing that such plan provides a benefit to
the species for which critical habitat is proposed for designation.''
We consult with the military on the development and implementation
of INRMPs for installations with listed species. Marine Corps Air
Station Miramar is the only military installation located within the
range of the proposed critical habitat designation for the Hermes
copper butterfly that has a completed, Service-approved INRMP. As
discussed below, we analyzed the INRMP to determine if it meets the
criteria for exemption from critical habitat under section 4(a)(3) of
the Act.
Approved INRMP
Marine Corps Air Station Miramar--Unit 2 (967 ha (2,389 ac))
Marine Corps Air Station (MCAS) Miramar has an approved INRMP
completed in June 2018. The U.S. Marine Corps is committed to working
closely with the Service and California Department of Fish and Wildlife
to continually refine the existing INRMP as part of the Sikes Act's
INRMP review process. The MCAS Miramar INRMP overall strategy for
conservation and management is to: (1) Limit activities, minimize
development, and perform mitigation actions in areas supporting high
densities of vernal pool habitat, threatened or endangered species, and
other wetlands; and (2) manage activities and development in areas of
low densities, or no regulated resources, with site-specific measures
and programmatic instructions.
The MCAS Miramar INRMP contains elements that benefit the Hermes
copper butterfly, such as mitigation guidance for projects which may
impact Hermes copper butterfly or its habitat (MCAS Miramar 2018, p. 6-
13) and natural resources management goals and objectives which support
both Hermes copper butterfly conservation and military operational
requirements. Identified management actions within the INRMP include
restoring degraded sites, restricting access to sensitive
[[Page 1037]]
areas, training military personnel to recognize and avoid sensitive
areas, invasive species removal, surveys to identify areas suitable for
habitat restoration or enhancement, and long-term ecosystem monitoring
(MCAS Miramar 2018, p. 7-17). The INRMP also includes measures to avoid
or minimize the effects of planned actions, such as limiting training
and land management activities during flight season, as well as
minimizing off-road activities to avoid damage to host plants and
crushing eggs and larval butterflies (MCAS Miramar 2018, p. 5-7). It
further provides guidance for project planners on required impact
avoidance, minimization, and compensation of occupied and unoccupied
habitat. Overall, these measures will protect Hermes copper butterflies
from impacts such as loss of spiny redberry and nectar plants from
direct and indirect effects of planned actions and will minimize
conflicts with military operational needs. In total, 967 ha (2,389 ac)
on MCAS Miramar meet the definition of critical habitat for the Hermes
copper butterfly.
Based on our review of the Hermes copper butterfly habitat on MCAS
Miramar, the MCAS Miramar INRMP, and the above considerations, and in
accordance with section 4(a)(3)(B)(i) of the Act, we have determined
that the identified lands are subject to the Marine Corps Air Station
Miramar INRMP and that conservation efforts identified in the INRMP
will provide a benefit to the Hermes copper butterfly. Therefore, lands
within this installation are exempt from critical habitat designation
under section 4(a)(3) of the Act. We are not including approximately
967 ha (2,389 ac) of habitat in this proposed critical habitat
designation because of this exemption.
Consideration of Impacts Under Section 4(b)(2) of the Act
Section 4(b)(2) of the Act states that the Secretary shall
designate and make revisions to critical habitat on the basis of the
best available scientific data after taking into consideration the
economic impact, national security impact, and any other relevant
impact of specifying any particular area as critical habitat. The
Secretary may exclude an area from critical habitat if he determines
that the benefits of such exclusion outweigh the benefits of specifying
such area as part of the critical habitat, unless he determines, based
on the best scientific data available, that the failure to designate
such area as critical habitat will result in the extinction of the
species. In making that determination, the statute on its face, as well
as the legislative history, are clear that the Secretary has broad
discretion regarding which factor(s) to use and how much weight to give
to any factor.
We have not considered any areas for exclusion from critical
habitat. However, the final decision on whether to exclude any areas
will be based on the best scientific data available at the time of the
final designation, including information obtained during the comment
period and information about the economic impact of designation.
Accordingly, we have prepared a draft economic analysis concerning the
proposed critical habitat designation, which is available for review
and comment (see ADDRESSES).
Consideration of Economic Impacts
Section 4(b)(2) of the Act and its implementing regulations require
that we consider the economic impact that may result from a designation
of critical habitat. To assess the probable economic impacts of a
designation, we must first evaluate specific land uses or activities
and projects that may occur in the area of the critical habitat. We
then must evaluate the impacts that a specific critical habitat
designation may have on restricting or modifying specific land uses or
activities for the benefit of the species and its habitat within the
areas proposed. We then identify which conservation efforts may be the
result of the species being listed under the Act versus those
attributed solely to the designation of critical habitat for this
particular species. The probable economic impact of a proposed critical
habitat designation is analyzed by comparing scenarios both ``with
critical habitat'' and ``without critical habitat.'' The ``without
critical habitat'' scenario represents the baseline for the analysis,
which includes the existing regulatory and socio-economic burden
imposed on landowners, managers, or other resource users potentially
affected by the designation of critical habitat (e.g., under the
Federal listing as well as other Federal, State, and local
regulations). The baseline, therefore, represents the costs of all
efforts attributable to the listing of the species under the Act (i.e.,
conservation of the species and its habitat incurred regardless of
whether critical habitat is designated). The ``with critical habitat''
scenario describes the incremental impacts associated specifically with
the designation of critical habitat for the species. The incremental
conservation efforts and associated impacts would not be expected
without the designation of critical habitat for the species. In other
words, the incremental costs are those attributable solely to the
designation of critical habitat, above and beyond the baseline costs.
These are the costs we use when evaluating the benefits of inclusion
and exclusion of particular areas from the final designation of
critical habitat should we choose to conduct a discretionary 4(b)(2)
exclusion analysis.
For this particular designation, we developed an Incremental
Effects Memorandum (IEM) considering the probable incremental economic
impacts that may result from this proposed designation of critical
habitat (Service 2018b). The information contained in our IEM was then
used to develop a screening analysis of the probable effects of the
designation of critical habitat for the Hermes copper butterfly (IEc
2018, entire). We began by conducting a screening analysis of the
proposed designation of critical habitat in order to focus our analysis
on the key factors that are likely to result in incremental economic
impacts. The purpose of the screening analysis is to filter out the
geographic areas in which the critical habitat designation is unlikely
to result in probable incremental economic impacts. In particular, the
screening analysis considers baseline costs (i.e., absent critical
habitat designation), including probable economic impacts where land
and water use may be subject to conservation plans, land management
plans, best management practices, or regulations that protect the
habitat area as a result of the Federal listing status of the species.
The screening analysis filters out particular areas of critical habitat
that are already subject to such protections and are, therefore,
unlikely to incur incremental economic impacts. Ultimately, the
screening analysis allows us to focus our analysis on evaluating the
specific areas or sectors that may incur probable incremental economic
impacts as a result of the designation. The screening analysis also
assesses whether units are unoccupied by the species and, as a result
of the critical habitat designation for the species, may require
additional management or conservation efforts that may incur
incremental economic impacts. This screening analysis and the
information contained in our IEM are what we consider our draft
economic analysis of the proposed critical habitat designation for the
Hermes copper butterfly and are summarized in the narrative below.
Executive Orders 12866 and 13563 direct Federal agencies to assess
the costs and benefits of available regulatory alternatives in
quantitative (to the extent feasible) and qualitative terms. Consistent
with the E.O. regulatory
[[Page 1038]]
analysis requirements, our effects analysis under the Act may take into
consideration impacts to both directly and indirectly affected
entities, where practicable and reasonable. If sufficient data are
available, we assess to the extent practicable the probable impacts to
both directly and indirectly affected entities. As part of our
screening analysis, we considered the types of economic activities that
are likely to occur within the areas likely affected by the critical
habitat designation. In our evaluation of the probable incremental
economic impacts that may result from the proposed designation of
critical habitat for the Hermes copper butterfly, first we identified
probable incremental economic impacts associated with the following
categories of activities: (1) Agriculture, (2) development; (3) forest
management; (4) grazing; (5) mining; (6) recreation; (7) renewable
energy; (8) transportation; and (9) utilities (Service 2018b, p. 2). We
considered each industry or category individually. Additionally, we
considered whether their activities have any Federal involvement.
Critical habitat designation only requires consideration of potential
project effects when there is an action conducted, funded, permitted,
or authorized by Federal agencies. If listed, in areas where the Hermes
copper butterfly is present, Federal agencies would already be required
to consult with the Service under section 7 of the Act on activities
they fund, permit, or implement that may affect the species.
In our IEM, we attempted to clarify the distinction between the
effects that will result from the species being listed and those
attributable to the critical habitat designation (i.e., difference
between the jeopardy and adverse modification standards) for the Hermes
copper butterfly's critical habitat. Because the designation of
critical habitat for Hermes copper butterfly is proposed concurrently
with the listing, it is difficult to discern which conservation efforts
are attributable to the species being listed and those which will
result solely from the designation of critical habitat. The essential
physical or biological features identified for Hermes copper butterfly
critical habitat are the same features essential for the life
requisites of the species. In particular, because the Hermes copper
butterfly is closely associated with the plant species essential for
its conservation, and because it is a non-migratory species that
remains on spiny redberry plants during all immature stages, and on the
plant as an adult, reasonable and prudent alternatives needed to avoid
jeopardy from impacts to the species' life-requisite habitat features
would also likely serve to avoid destruction or adverse modification of
critical habitat resulting from those impacts. Additionally, measures
to avoid or minimize take of the species (attributable to listing)
would also likely serve to address impacts to critical habitat.
The proposed critical habitat designation for the Hermes copper
butterfly totals approximately 14,249 ha (35,211 ac) in three units,
all of which are occupied by the species. The screening memo found that
incremental costs associated with section 7 consultations would likely
be low for the Hermes copper butterfly for several reasons (IEc 2018,
p. 9). First, the majority of the critical habitat designation is on
State, private, and local lands where a Federal nexus is unlikely
(although there are a few areas where the Army Corps of Engineers has
jurisdiction). Secondly, given that all the proposed units are
occupied, should a Federal nexus exist, any proposed projects would
need to undergo some form of consultation due to the presence of the
butterfly regardless of critical habitat designation.
Additionally, as previously stated, we expect that any project
modifications identified to avoid jeopardy that would result from
project-related effects to habitat features required by the species
would be similar to those identified to avoid destruction or adverse
modification of the critical habitat's physical or biological features
essential to the conservation of the species. Furthermore, all critical
habitat units overlap to some degree with critical habitat for other
listed species or with various conservation plans, State plans, or
Federal regulations. These protections may also benefit the Hermes
copper butterfly, even in the absence of critical habitat for the
species.
When an action is proposed in an area of occupied designated
critical habitat, and the proposed activity has a Federal nexus, the
need for consultation is triggered. Any incremental costs associated
with consideration of potential effects to the critical habitat are a
result of this consultation process. Overall, we expect that agency
administrative costs for consultation, incurred by the Service and the
consulting Federal agency, would be minor (less than $6,000 per
consultation effort) and, therefore, would not be significant (IEc
2018, p. 10). In addition, based on the non-inclusion of lands likely
to have a Federal nexus (such as riparian vegetation associations), and
coordination efforts with State and local agencies, we expect the
overall incremental costs will be minor.
Therefore, incremental costs would be limited to additional
administrative efforts by the Service and consulting Federal agencies
to include consideration of potential effects to the designated
critical habitat in otherwise needed consultations. These future costs
are unknown, but expected to be relatively small given the projections
by affected entities and are unlikely to exceed $100,000 in any given
year. Consequently, future probable incremental economic impacts are
not likely to exceed $100 million in any single year and would
therefore not be significant.
Consideration of National Security Impacts or Homeland Security Impacts
Section 4(b)(2) of the Act and its implementing regulations require
that we consider the impact to national security that may result from a
designation of critical habitat. For this proposed rule, we considered
whether there are lands owned or managed by the Department of Defense
within proposed critical habitat where a national security impact might
exist. In this case, we are exempting under section 4(a)(3) of the Act
all lands that meet the definition of critical habitat owned by the
Department of Defense. Additionally, in preparing this proposal, we
have determined that the lands within the proposed designation of
critical habitat for Hermes copper butterfly are not owned or managed
by the Department of Homeland Security. Therefore, we anticipate no
impact on national security.
Consideration of Other Relevant Impacts
Section 4(b)(2) of the Act and its implementing regulations require
that we also consider any other relevant impacts that may result from a
designation of critical habitat. In conducting that analysis, we
consider a number of factors including whether there are permitted
conservation plans covering the species in the area such as HCPs, safe
harbor agreements, or candidate conservation agreements with
assurances, or whether there are non-permitted conservation agreements
and partnerships that would be encouraged by designation of, or
exclusion from, critical habitat. In addition, we look at the existence
of any Tribal conservation plans and partnerships and consider the
government-to-government relationship of the United States with Tribal
entities. We also consider any social impacts that might occur because
of the designation.
[[Page 1039]]
In preparing this proposal, we have determined that there are
currently no HCPs or other management plans for the Hermes copper
butterfly, and the proposed designation does not include any Tribal
lands or trust resources. We anticipate no impact on Tribal lands,
partnerships, or HCPs from this proposed critical habitat designation.
As we stated earlier, we are soliciting data and comments from the
public on the draft economic analysis, as well as all aspects of the
proposed rule and our required determinations. We may revise the
proposed rule or supporting documents to incorporate or address
information we receive during the public comment period. In particular,
we may exclude an area from critical habitat if we determine that the
benefits of excluding the area outweigh the benefits of including the
area, provided the exclusion will not result in the extinction of this
species.
Exclusions
At this time, the Secretary does not intend to exercise his
discretion to exclude any areas from the final designation of critical
habitat under section 4(b)(2) of the Act. During the development of the
final designation, we will consider any additional information related
to the economic impacts, national security impacts, or any other
relevant impacts of specifying any particular area as critical habitat
that is received through the public comment period, and as such areas
may be excluded from the final critical habitat designation under
section 4(b)(2) of the Act and our implementing regulations at 50 CFR
424.19.
Available Conservation Measures
Conservation measures provided to species listed as endangered or
threatened species under the Act include recognition, recovery actions,
requirements for Federal protection, and prohibitions against certain
practices. Recognition through listing results in public awareness and
in conservation by Federal, State, Tribal, and local agencies, as well
as private organizations and individuals. The Act encourages
cooperation with the States and other countries and calls for recovery
actions to be carried out for listed species. The protection required
by Federal agencies and the prohibitions against certain activities are
discussed, in part, below.
The primary purpose of the Act is the conservation of endangered
and threatened species and the ecosystems upon which they depend. The
ultimate goal of such conservation efforts is the recovery of these
listed species, so that they no longer need the protective measures of
the Act. Subsection 4(f) of the Act calls for the Service to develop
and implement recovery plans for the conservation of endangered and
threatened species. The recovery planning process involves the
identification of actions that are necessary to halt or reverse the
species' decline by addressing the threats to its survival and
recovery. The goal of this process is to restore listed species to a
point where they are secure, self-sustaining, and functioning
components of their ecosystems.
Recovery planning includes the development of a recovery outline
shortly after a species is listed and preparation of a draft and final
recovery plan. The recovery outline guides the immediate implementation
of urgent recovery actions and describes the process to be used to
develop a recovery plan. Revisions of the plan may be done to address
continuing or new threats to the species, as new substantive
information becomes available. The recovery plan also identifies
recovery criteria for review of when a species may be ready for
downlisting or delisting, and methods for monitoring recovery progress.
Recovery plans also establish a framework for agencies to coordinate
their recovery efforts and provide estimates of the cost of
implementing recovery tasks. Recovery teams (composed of species
experts, Federal and State agencies, nongovernmental organizations, and
stakeholders) are often established to develop recovery plans. When
completed, the recovery outline, draft recovery plan, and the final
recovery plan for the Hermes copper butterfly, if listed, will be
available on our website (http://www.fws.gov/endangered), or from our
Carlsbad Fish and Wildlife Office (see FOR FURTHER INFORMATION
CONTACT).
Implementation of recovery actions generally requires the
participation of a broad range of partners, including other Federal
agencies, States, Tribes, nongovernmental organizations, businesses,
and private landowners. Examples of recovery actions include habitat
restoration (e.g., restoration of native vegetation), research, captive
propagation and reintroduction, and outreach and education. The
recovery of many listed species cannot be accomplished solely on
Federal lands because their range may occur primarily or solely on non-
Federal lands. To achieve recovery of these species requires
cooperative conservation efforts on private, State, and Tribal lands.
If this species is listed, funding for recovery actions will be
available from a variety of sources, including Federal budgets, State
programs, and cost share grants for non-Federal landowners, the
academic community, and nongovernmental organizations. In addition,
pursuant to section 6 of the Act, the State of California would be
eligible for Federal funds to implement management actions that promote
the protection or recovery of the Hermes copper butterfly. Information
on our grant programs that are available to aid species recovery can be
found at: http://www.fws.gov/grants.
Although the Hermes copper butterfly is only proposed for listing
under the Act at this time, please let us know if you are interested in
participating in recovery efforts for this species. Additionally, we
invite you to submit any new information on this species whenever it
becomes available and any information you may have for recovery
planning purposes (see FOR FURTHER INFORMATION CONTACT).
Section 7(a) of the Act requires Federal agencies to evaluate their
actions with respect to any species that is proposed or listed as an
endangered or threatened species and with respect to its critical
habitat, if any is designated. Regulations implementing this
interagency cooperation provision of the Act are codified at 50 CFR
part 402. Section 7(a)(4) of the Act requires Federal agencies to
confer with the Service on any action that is likely to jeopardize the
continued existence of a species proposed for listing or result in
destruction or adverse modification of proposed critical habitat. If a
species is listed subsequently, section 7(a)(2) of the Act requires
Federal agencies to ensure that activities they authorize, fund, or
carry out are not likely to jeopardize the continued existence of the
species or destroy or adversely modify its critical habitat. If a
Federal action may affect a listed species or its critical habitat, the
responsible Federal agency must enter into consultation with the
Service.
Federal agency actions within the species' habitat that may require
conference or consultation or both as described in the preceding
paragraph include activities that may affect the species, land
management, and any other landscape-altering activities that may affect
the physical or biological features essential to the conservation of
the species.
Proposed Rule Provisions
Under section 4(d) of the Act, the Service has discretion to issue
regulations that we find necessary and advisable to provide for the
conservation of threatened species
[[Page 1040]]
(hereafter referred to as a ``4(d) rule''). Through a 4(d) rule, we may
prohibit by regulation with respect to threatened wildlife any act
prohibited by section 9(a)(1) of the Act for endangered wildlife.
Exercising this discretion, the Service has developed a 4(d) rule for
the Hermes copper butterfly containing all the general prohibitions and
exceptions to those prohibitions that is tailored to the specific
threats and conservation needs of this species.
As discussed above in the Summary of Factors Affecting the Species
section of this proposed listing rule and the SSA (Service 2018a, pp.
15 and 16), factors limiting the distribution of Hermes copper
butterfly are not entirely understood, since the species' distribution
is much more restricted than its host plant. The highest magnitude
threats to the Hermes copper butterfly include extirpation of
populations by wildfire and loss and isolation of populations due to
development.
This 4(d) rule describes how and where the prohibitions of section
9(a)(1) of the Act will be applied. As described in more detail later
in this section, this proposed 4(d) rule identifies a certain portion
of the species' range that would not be subject to the take
prohibitions under section 9(a)(1) of the Act (Figure 1). Outside of
the area delineated in Figure 1, this proposed 4(d) rule would prohibit
all acts described under section 9(a)(1) of the Act, except take
resulting from the activities listed below when conducted within
habitats occupied by the Hermes copper butterfly. All of the activities
listed below must be conducted in a manner that (1) maintains
contiguity of suitable habitat for the species within and dispersal
corridor connectivity among populations, allowing for maintenance of
populations and recolonization of unoccupied, existing habitat; (2)
does not increase the risk of wildfire in areas occupied by the Hermes
copper butterfly while preventing further habitat fragmentation and
isolation, or degradation of potentially suitable habitat; and (3) does
not preclude efforts to augment or reintroduce populations of the
Hermes copper butterfly within its historical range with management of
the host plant. Some exempted activities must be coordinated with and
reported to the Service in writing and approved to ensure accurate
interpretation of exemptions (for example, that activities do not
adversely affect the species' conservation and recovery). Questions
regarding the proposed application of these requirements should be
directed to the Carlsbad Ecological Services Field Office (see FOR
FURTHER INFORMATION CONTACT).
This proposed 4(d) rule would exempt from the prohibitions in
section 9(a)(1) of the Act take resulting from any of the following
activities when conducted within habitats occupied by the Hermes copper
butterfly:
(1) Survey and monitoring work in coordination with and reported to
the Service as part of scientific inquiry involving quantitative data
collection (such as population status determinations).
(2) Habitat management or restoration activities, including removal
of nonnative, invasive plants, expected to provide a benefit to Hermes
copper butterfly or other sensitive species of the chaparral and
coastal sage scrub ecosystems, including removal of nonnative, invasive
plants. These activities must be coordinated with and reported to the
Service in writing and approved the first time an individual or agency
undertakes them.
(3) Activities necessary to maintain the minimum clearance
(defensible space) requirement of 30 m (100 ft) from any occupied
dwelling, occupied structure, or to the property line, whichever is
nearer, to provide reasonable fire safety and comply with State of
California fire codes to reduce wildfire risks.
(4) Fire management actions on protected/preserve lands to
maintain, protect, or enhance coastal sage scrub and chaparral
vegetation. These activities must be coordinated with and reported to
the Service in writing and approved the first time an individual or
agency undertakes them.
(5) Maintenance of existing fuel breaks identified by local fire
authorities to protect existing structures.
(6) Firefighting activities associated with actively burning fires
to reduce risk to life or property.
(7) Collection, transportation, and captive-rearing of Hermes
copper butterfly for the purpose of population augmentation or
reintroduction, maintaining refugia, or as part of scientific inquiry
involving quantitative data collection (such as survival rate, larval
weights, and post-release monitoring) approved by, in coordination
with, and reported to the Service. This does not include activities
such as personal ``hobby'' collecting and rearing intended for
photographic purposes and re-release.
(8) Research projects involving collection of individual fruits,
leaves, or stems of the Hermes copper butterfly host plant, spiny
redberry, approved by, in coordination with, and reported to the
Service.
We believe these actions and activities, while they may result in
some minimal level of mortality, harm, or disturbance to the Hermes
copper butterfly, are not expected to adversely affect the species'
conservation and recovery. In fact, we expect they would have a net
beneficial effect on the species. Across the species' range, suitable
habitat has been degraded or fragmented by development and wildfire,
including megafires. The activities covered by this proposed 4(d) rule
will address some of these problems, creating more favorable habitat
conditions for the species and helping to stabilize or increase
populations of the species. Like the proposed listing rule, this
proposed 4(d) rule will not be finalized until we have reviewed
comments from the public and peer reviewers.
Additionally, we are proposing under section 4(d) of the Act to
delineate a certain portion of the species' range that would not be
subject to the take prohibitions under section 9(a)(1) of the Act
(Figure 1). Areas inside this portion of the species' range capture all
remnant habitat areas where there is any possibility of Hermes copper
butterfly occupancy and where we are confident they would not
contribute significantly to species' recovery because of limited
available habitat and connectivity. They are unlikely to contribute to
recovery because any occupied areas within the boundary are too small
and isolated to support a population in the long term. The intent is to
provide regulatory relief to those who might otherwise be affected by
the species being listed as threatened, and to encourage and strengthen
conservation partnerships among Federal, State, and local agencies; and
other partners and other public we serve.
The areas where the section 9(a)(1) prohibitions would not apply
are shown in Figure 1. These areas were designed in the following way:
The southern edge is the Mexican border and the western edge is the
Pacific coast. The eastern and northern edges of the boundary follow
the development that would isolate any extant populations found within
the boundaries. We did not include areas where we believed there was
any chance of future dispersal corridor connectivity among extant
populations, including habitat that could potentially be managed or
restored to act as suitable connecting habitat. For a more detailed map
of the areas where the section 9(a)(1) prohibitions would not apply,
please contact the Carlsbad Fish and Wildlife Office (see FOR FURTHER
INFORMATION CONTACT).
[[Page 1041]]
[GRAPHIC] [TIFF OMITTED] TP08JA20.001
Based on the rationale above, the provisions included in this
proposed 4(d) rule are necessary and advisable to provide for the
conservation of the Hermes copper butterfly. Nothing in this proposed
4(d) rule would change in any way the recovery planning provisions of
section 4(f) of the Act, the consultation requirements under section 7
of the Act, or the ability of the Service to enter into partnerships
for the management and protection of the Hermes copper butterfly.
Activities Subject to Take Prohibitions
We may issue permits to carry out otherwise prohibited activities
involving threatened wildlife under certain circumstances. Regulations
governing permits are codified at 50 CFR 17.32. There are also certain
statutory exemptions from the prohibitions, which are found in sections
9 and 10 of the Act.
It is our policy, as published in the Federal Register on July 1,
1994 (59 FR 34272), to identify to the maximum extent practicable at
the time a species is listed, those activities that would or would not
constitute a violation of section 9 of the Act. The intent of this
policy is to increase public awareness of the effect of a proposed
listing on proposed and ongoing activities within the range of the
species proposed for listing.
Based on the best available information, the following actions are
unlikely to result in a violation of section 9, if these activities are
carried out in accordance with existing regulations and permit
requirements or within the portion of the species' range
[[Page 1042]]
described above that would not be subject to the take prohibitions;
this list is not comprehensive:
(1) Normal agricultural and silvicultural practices, including
pesticide use, which are carried out in accordance with any existing
regulations, permit and label requirements, and best management
practices;
(2) Normal residential and urban landscape activities, such as
mowing, edging, fertilizing, etc.; and
(3) Recreation and management at National Forests that is conducted
in accordance with existing USFS regulations and policies.
Based on the best available information, the following activities
may potentially result in violation of section 9 of the Act; this list
is not comprehensive:
(1) Unauthorized collecting, handling, possessing, selling,
delivering, carrying, or transporting of the species (adults, eggs,
larvae, or pupae), including transport across State lines and
international boundaries, except for properly documented antique
specimens of these taxa at least 100 years old, as defined by section
10(h)(1) of the Act;
(2) Unauthorized modification, removal, or destruction of spiny
redberry within the species' range that is known to be occupied by
Hermes copper butterfly and that may result in death or injury of
adults, eggs, larvae, or pupae; and
(3) Illegal pesticide applications (i.e., in violation of label
restrictions) in or adjacent to (due to spray drift concerns) habitat
known to be occupied by Hermes copper butterfly that may result in
death or injury of adults, eggs, larvae, or pupae.
Questions regarding whether specific activities would constitute a
violation of section 9 of the Act should be directed to the Carlsbad
Ecological Services Field Office (see FOR FURTHER INFORMATION CONTACT).
Required Determinations
Clarity of the Rule
We are required by Executive Orders 12866 and 12988 and by the
Presidential Memorandum of June 1, 1998, to write all rules in plain
language. This means that each rule we publish must:
(1) Be logically organized;
(2) Use the active voice to address readers directly;
(3) Use clear language rather than jargon;
(4) Be divided into short sections and sentences; and
(5) Use lists and tables wherever possible.
If you feel that we have not met these requirements, send us
comments by one of the methods listed in ADDRESSES. To better help us
revise the rule, your comments should be as specific as possible. For
example, you should tell us the numbers of the sections or paragraphs
that are unclearly written, which sections or sentences are too long,
the sections where you feel lists or tables would be useful, etc.
Executive Order 13771
We do not believe this proposed rule is an E.O. 13771 (``Reducing
Regulation and Controlling Regulatory Costs'') (82 FR 9339, February 3,
2017) regulatory action because we believe this rule is not significant
under E.O. 12866; however, the Office of Information and Regulatory
Affairs has waived their review regarding their E.O. 12866 significance
determination of this proposed rule.
Regulatory Planning and Review (Executive Orders 12866 and 13563)
Executive Order 12866 provides that the Office of Information and
Regulatory Affairs (OIRA) will review all significant rules. The Office
of Information and Regulatory Affairs has waived their review regarding
their significance determination of this proposed rule.
Executive Order 13563 reaffirms the principles of E.O. 12866 while
calling for improvements in the nation's regulatory system to promote
predictability, to reduce uncertainty, and to use the best, most
innovative, and least burdensome tools for achieving regulatory ends.
The executive order directs agencies to consider regulatory approaches
that reduce burdens and maintain flexibility and freedom of choice for
the public where these approaches are relevant, feasible, and
consistent with regulatory objectives. E.O. 13563 emphasizes further
that regulations must be based on the best available science and that
the rulemaking process must allow for public participation and an open
exchange of ideas. We have developed this rule in a manner consistent
with these requirements.
Regulatory Flexibility Act (5 U.S.C. 601 et seq.)
Under the Regulatory Flexibility Act (RFA; 5 U.S.C. 601 et seq.),
as amended by the Small Business Regulatory Enforcement Fairness Act of
1996 (SBREFA; 5 U.S.C. 801 et seq.), whenever an agency is required to
publish a notice of rulemaking for any proposed or final rule, it must
prepare and make available for public comment a regulatory flexibility
analysis that describes the effects of the rule on small entities
(i.e., small businesses, small organizations, and small government
jurisdictions). However, no regulatory flexibility analysis is required
if the head of the agency certifies the rule will not have a
significant economic impact on a substantial number of small entities.
The SBREFA amended the RFA to require Federal agencies to provide a
certification statement of the factual basis for certifying that the
rule will not have a significant economic impact on a substantial
number of small entities.
According to the Small Business Administration, small entities
include small organizations such as independent nonprofit
organizations; small governmental jurisdictions, including school
boards and city and town governments that serve fewer than 50,000
residents; and small businesses (13 CFR 121.201). Small businesses
include manufacturing and mining concerns with fewer than 500
employees, wholesale trade entities with fewer than 100 employees,
retail and service businesses with less than $5 million in annual
sales, general and heavy construction businesses with less than $27.5
million in annual business, special trade contractors doing less than
$11.5 million in annual business, and agricultural businesses with
annual sales less than $750,000. To determine if potential economic
impacts to these small entities are significant, we considered the
types of activities that might trigger regulatory impacts under this
designation as well as types of project modifications that may result.
In general, the term ``significant economic impact'' is meant to apply
to a typical small business firm's business operations.
The Service's current understanding of the requirements under the
RFA, as amended, and following recent court decisions, is that Federal
agencies are only required to evaluate the potential incremental
impacts of rulemaking on those entities directly regulated by the
rulemaking itself, and therefore, not required to evaluate the
potential impacts to indirectly regulated entities. The regulatory
mechanism through which critical habitat protections are realized is
section 7 of the Act, which requires Federal agencies, in consultation
with the Service, to ensure that any action authorized, funded, or
carried out by the Agency is not likely to destroy or adversely modify
critical habitat. Therefore, under section 7, only Federal action
agencies are directly subject to the specific regulatory requirement
(avoiding destruction and
[[Page 1043]]
adverse modification) imposed by critical habitat designation.
Consequently, it is our position that only Federal action agencies will
be directly regulated by this designation. There is no requirement
under the RFA to evaluate the potential impacts to entities not
directly regulated. Moreover, Federal agencies are not small entities.
Therefore, because no small entities are directly regulated by this
rulemaking, the Service certifies that, if promulgated, the proposed
critical habitat designation will not have a significant economic
impact on a substantial number of small entities.
Energy Supply, Distribution, or Use--Executive Order 13211
Executive Order 13211 (Actions Concerning Regulations That
Significantly Affect Energy Supply, Distribution, or Use) requires
agencies to prepare Statements of Energy Effects when undertaking
certain actions. In our economic analysis, we did not find that the
designation of this proposed critical habitat will significantly affect
energy supplies, distribution, or use. Furthermore, although it does
include areas where powerlines and power facility construction and
maintenance may occur in the future, it will not produce a Federal
mandate of $100 million or greater in any year, that is, it is not a
``significant regulatory action'' under the Unfunded Mandates Reform
Act. Therefore, this action is not a significant energy action, and no
Statement of Energy Effects is required.
Unfunded Mandates Reform Act (2 U.S.C. 1501 et seq.)
In accordance with the Unfunded Mandates Reform Act (2 U.S.C. 1501
et seq.), we make the following findings:
(1) This rule will not produce a Federal mandate. In general, a
Federal mandate is a provision in legislation, statute, or regulation
that would impose an enforceable duty upon State, local, or Tribal
governments, or the private sector, and includes both ``Federal
intergovernmental mandates'' and ``Federal private sector mandates.''
These terms are defined in 2 U.S.C. 658(5)-(7). ``Federal
intergovernmental mandate'' includes a regulation that ``would impose
an enforceable duty upon State, local, or Tribal governments'' with two
exceptions. It excludes ``a condition of Federal assistance.'' It also
excludes ``a duty arising from participation in a voluntary Federal
program,'' unless the regulation ``relates to a then-existing Federal
program under which $500,000,000 or more is provided annually to State,
local, and Tribal governments under entitlement authority,'' if the
provision would ``increase the stringency of conditions of assistance''
or ``place caps upon, or otherwise decrease, the Federal Government's
responsibility to provide funding,'' and the State, local, or Tribal
governments ``lack authority'' to adjust accordingly. At the time of
enactment, these entitlement programs were: Medicaid; Aid to Families
with Dependent Children work programs; Child Nutrition; Food Stamps;
Social Services Block Grants; Vocational Rehabilitation State Grants;
Foster Care, Adoption Assistance, and Independent Living; Family
Support Welfare Services; and Child Support Enforcement. ``Federal
private sector mandate'' includes a regulation that ``would impose an
enforceable duty upon the private sector, except (i) a condition of
Federal assistance or (ii) a duty arising from participation in a
voluntary Federal program.''
The designation of critical habitat does not impose a legally
binding duty on non-Federal Government entities or private parties.
Under the Act, the only regulatory effect is that Federal agencies must
ensure that their actions do not destroy or adversely modify critical
habitat under section 7. While non-Federal entities that receive
Federal funding, assistance, or permits, or that otherwise require
approval or authorization from a Federal agency for an action, may be
indirectly impacted by the designation of critical habitat, the legally
binding duty to avoid destruction or adverse modification of critical
habitat rests squarely on the Federal agency. Furthermore, to the
extent that non-Federal entities are indirectly impacted because they
receive Federal assistance or participate in a voluntary Federal aid
program, the Unfunded Mandates Reform Act would not apply, nor would
critical habitat shift the costs of the large entitlement programs
listed above onto State governments.
(2) We do not believe this rule would significantly or uniquely
affect small governments because it will not produce a Federal mandate
of $100 million or greater in any year, that is, it is not a
``significant regulatory action'' under the Unfunded Mandates Reform
Act. The designation of critical habitat imposes no obligations on
State or local governments and, as such, a Small Government Agency Plan
is not required.
Takings--Executive Order 12630
In accordance with E.O. 12630 (Government Actions and Interference
with Constitutionally Protected Private Property Rights), we have
analyzed the potential takings implications of designating critical
habitat for the Hermes copper butterfly in a takings implications
assessment. The Act does not authorize the Service to regulate private
actions on private lands or confiscate private property as a result of
critical habitat designation. Designation of critical habitat does not
affect land ownership, or establish any closures, or restrictions on
use of or access to the designated areas. Furthermore, the designation
of critical habitat does not affect landowner actions that do not
require Federal funding or permits, nor does it preclude development of
habitat conservation programs or issuance of incidental take permits to
permit actions that do require Federal funding or permits to go
forward. However, Federal agencies are prohibited from carrying out,
funding, or authorizing actions that would destroy or adversely modify
critical habitat. A takings implications assessment has been completed
and concludes that this designation of critical habitat for the Hermes
copper butterfly does not pose significant takings implications for
lands within or affected by the designation.
Federalism--Executive Order 13132
In accordance with E.O. 13132 (Federalism), this proposed rule does
not have significant Federalism effects. A Federalism assessment is not
required. In keeping with Department of the Interior and Department of
Commerce policy, we request information from, and coordinated
development of this proposed critical habitat designation with,
appropriate State resource agencies in California. From a federalism
perspective, the designation of critical habitat directly affects only
the responsibilities of Federal agencies. The Act imposes no other
duties with respect to critical habitat, either for States and local
governments, or for anyone else. As a result, the rule does not have
substantial direct effects either on the States, or on the relationship
between the national government and the States, or on the distribution
of powers and responsibilities among the various levels of government.
The designation may have some benefit to these governments because the
areas that contain the features essential to the conservation of the
species are more clearly defined, and the physical or biological
features of the habitat necessary to the conservation of the species
are specifically identified. This information does not alter where and
what federally sponsored activities may occur. However, it may assist
these local governments in long-range planning
[[Page 1044]]
(because these local governments no longer have to wait for case-by-
case section 7 consultations to occur).
Where State and local governments require approval or authorization
from a Federal agency for actions that may affect critical habitat,
consultation under section 7(a)(2) would be required. While non-Federal
entities that receive Federal funding, assistance, or permits, or that
otherwise require approval or authorization from a Federal agency for
an action, may be indirectly impacted by the designation of critical
habitat, the legally binding duty to avoid destruction or adverse
modification of critical habitat rests squarely on the Federal agency.
Civil Justice Reform--Executive Order 12988
In accordance with Executive Order 12988 (Civil Justice Reform),
the Office of the Solicitor has determined that the rule does not
unduly burden the judicial system and that it meets the requirements of
sections 3(a) and 3(b)(2) of the Order. We have proposed designating
critical habitat in accordance with the provisions of the Act. To
assist the public in understanding the habitat needs of the species,
the rule identifies the elements of physical or biological features
essential to the conservation of the species. The designated areas of
critical habitat are presented on maps, and the rule provides several
options for the interested public to obtain more detailed location
information, if desired.
Paperwork Reduction Act of 1995 (44 U.S.C. 3501 et seq.)
This rule does not contain any new collections of information that
require approval by OMB under the Paperwork Reduction Act of 1995 (44
U.S.C. 3501 et seq.). This rule will not impose recordkeeping or
reporting requirements on State or local governments, individuals,
businesses, or organizations. An agency may not conduct or sponsor, and
a person is not required to respond to, a collection of information
unless it displays a currently valid OMB control number.
National Environmental Policy Act (42 U.S.C. 4321 et seq.)
It is our position that, outside the jurisdiction of the U.S. Court
of Appeals for the Tenth Circuit, we do not need to prepare
environmental analyses pursuant to the National Environmental Policy
Act (NEPA; 42 U.S.C. 4321 et seq.) in connection with listing a species
as an endangered or threatened species or with designating critical
habitat under the Act. We published a notice outlining our reasons for
this determination in the Federal Register on October 25, 1983 (48 FR
49244). This position was upheld by the U.S. Court of Appeals for the
Ninth Circuit (Douglas County v. Babbitt, 48 F.3d 1495 (9th Cir. 1995),
cert. denied 516 U.S. 1042 (1996)).]
References Cited
A complete list of references cited in this proposed rulemaking is
available on the internet at http://www.regulations.gov and upon
request from the Carlsbad Ecological Services Field Office (see FOR
FURTHER INFORMATION CONTACT).
Authors
The primary authors of this proposed rule are the staff members of
the Fish and Wildlife Service's Species Assessment Team and the
Carlsbad Ecological Services Field Office.
List of Subjects in 50 CFR Part 17
Endangered and threatened species, Exports, Imports, Reporting and
recordkeeping requirements, Transportation.
Proposed Regulation Promulgation
Accordingly, we propose to amend part 17, subchapter B of chapter
I, title 50 of the Code of Federal Regulations, as set forth below:
PART 17--ENDANGERED AND THREATENED WILDLIFE AND PLANTS
0
1. The authority citation for part 17 continues to read as follows:
Authority: 16 U.S.C. 1361-1407; 1531-1544; and 4201-4245; unless
otherwise noted.
0
2. Amend Sec. 17.11(h) by adding an entry for ``Butterfly, Hermes
copper'' to the List of Endangered and Threatened Wildlife in
alphabetical order under ``Insects'' to read as set forth below:
Sec. 17.11 Endangered and threatened wildlife.
* * * * *
(h) * * *
----------------------------------------------------------------------------------------------------------------
Listing citations and
Common name Scientific name Where listed Status applicable rules
----------------------------------------------------------------------------------------------------------------
* * * * * * *
Insects
* * * * * * *
Butterfly, Hermes copper......... Lycaena hermes...... Wherever found..... T [Federal Register
citation when published
as a final rule]; 50
CFR 17.47(d) 4d; 50 CFR
17.95(i) CH.
* * * * * * *
----------------------------------------------------------------------------------------------------------------
0
3. Amend Sec. 17.47 by adding paragraph (d) to read as follows:
Sec. 17.47 Special rules--insects.
* * * * *
(d) Hermes copper butterfly (Lycaena hermes)--(1) Prohibitions.
Except as noted in paragraph (d)(2) of this section, all prohibitions
and provisions of 16 U.S.C. 1538(a)(1) and 50 CFR 17.32 apply to the
Hermes copper butterfly.
(2) Exceptions from prohibitions. (i) All of the activities listed
in paragraph (d)(2)(ii) of this section occurring outside the area
delineated in paragraph (d)(2)(iii) of this section must be conducted
in a manner that:
(A) Maintains contiguity of suitable habitat for the species within
and dispersal corridor connectivity among populations, allowing for
maintenance of populations and recolonization of unoccupied, existing
habitat;
(B) Does not increase the risk of wildfire in areas occupied by the
Hermes copper butterfly while preventing further habitat fragmentation
and isolation, or degradation of potentially suitable habitat; and
(C) Does not preclude efforts to augment or reintroduce populations
of the Hermes copper butterfly within its historical range with
management of the host plant.
(ii) Take of the Hermes copper butterfly outside the area
delineated in paragraph (d)(2)(iii) of this section will
[[Page 1045]]
not be considered a violation of section 9 of the Act if the take
results from any of the following activities when conducted within
habitats occupied by the Hermes copper butterfly:
(A) Survey and monitoring work in coordination with and reported to
the Service as part of scientific inquiry involving quantitative data
collection (such as population status determinations).
(B) Habitat management or restoration activities, including removal
of nonnative, invasive plants, expected to provide a benefit to Hermes
copper butterfly or other sensitive species of the chaparral and
coastal sage scrub ecosystems, including removal of nonnative, invasive
plants. These activities must be coordinated with and reported to the
Service in writing and approved the first time an individual or agency
undertakes them.
(C) Activities necessary to maintain the minimum clearance
(defensible space) requirement of 30 m (100 ft) from any occupied
dwelling, occupied structure, or to the property line, whichever is
nearer, to provide reasonable fire safety and comply with State of
California fire codes to reduce wildfire risks.
(D) Fire management actions on protected/preserve lands to
maintain, protect, or enhance coastal sage scrub and chaparral
vegetation. These activities must be coordinated with and reported to
the Service in writing and approved the first time an individual or
agency undertakes them.
(E) Maintenance of existing fuel breaks identified by local fire
authorities to protect existing structures.
(F) Firefighting activities associated with actively burning fires
to reduce risk to life or property.
(G) Collection, transportation, and captive-rearing of Hermes
copper butterfly for the purpose of population augmentation or
reintroduction, maintaining refugia, or as part of scientific inquiry
involving quantitative data collection (such as survival rate, larval
weights, and post-release monitoring) in coordination with and reported
to the Service. This does not include activities such as personal
``hobby'' collecting and rearing intended for photographic purposes and
re-release.
(H) Research projects involving collection of individual fruits,
leaves, or stems of the Hermes copper butterfly host plant, spiny
redberry, in coordination with and reported to the Service.
(iii) A portion of the range of the Hermes copper butterfly is
exempt from all take prohibitions under section 9(a)(1) of the Act.
(A) The southern edge is the Mexican border, and the western edge
is the Pacific coast. The eastern and northern edges of the boundary
follow the development that would isolate any extant populations found
within the boundaries.
(B) Note: The map of areas exempted from take prohibitions follows:
[[Page 1046]]
[GRAPHIC] [TIFF OMITTED] TP08JA20.002
(3) Contact information. To contact the Service, see 50 CFR 2.2 for
a list of the addresses for the Service regional offices.
0
4. Amend Sec. 17.95(i) by adding an entry for ``Hermes copper
butterfly (Lycaena hermes),'' in alphabetical order to read as follows:
Sec. 17.95 Critical habitat--fish and wildlife.
* * * * *
(i) Insects.
* * * * *
Hermes Copper Butterfly (Lycaena hermes)
(1) Critical habitat units are depicted for San Diego County,
California, on the maps below.
(2) Within these areas, the physical or biological features
essential to the conservation of the Hermes copper butterfly consist of
the following components when found between 30 m and 1,341 m above sea
level:
(i) Spiny redberry host plants.
(ii) Nectar sources for adult butterflies.
(3) Critical habitat does not include manmade structures (such as
buildings, aqueducts, runways, roads, and other paved areas) and the
land on which they are located existing within the legal boundaries on
[EFFECTIVE DATE OF THE FINAL RULE].
(4) Critical habitat was mapped using GIS analysis tools and
refined using 2016 NAIP imagery and/or the World Imagery layer from
ArcGIS Online. The maps in this entry, as modified by any accompanying
regulatory text, establish the boundaries of the critical habitat
designation. The coordinates or plot points or both on which each map
is based are available to the public at http://www.regulations.gov at
Docket
[[Page 1047]]
No. FWS-R8-ES-2017-0053 and at the field office responsible for this
designation. You may obtain field office location information by
contacting one of the Service regional offices, the addresses of which
are listed at 50 CFR 2.2.
(5) Note: Index map follows:
[GRAPHIC] [TIFF OMITTED] TP08JA20.003
(6) Unit 1: Lopez Canyon, San Diego County, California.
(i) Unit 1 consists of 166 ha (410 ac) in San Diego County and is
composed of lands jointly owned and managed by the City and County of
San Diego (88 ha (218 ac)) and private or other ownership (77 ha (191
ac)).
(ii) Note: Map of Unit 1, Lopez Canyon, follows:
[[Page 1048]]
[GRAPHIC] [TIFF OMITTED] TP08JA20.004
(7) Unit 2: Miramar/Santee, San Diego County, California.
(i) Unit 2 consists of 2,870 ha (7,092 ac) in San Diego County and
is composed of lands owned and managed by the State of California (111
ha (275 ac)), local jurisdictions (primarily the County of San Diego;
1,113 ha (2,750 ac)), and private or other ownership (1,646 ha (4,068
ac)).
(ii) Note: Map of Unit 2, Miramar/Santee, follows:
[[Page 1049]]
[GRAPHIC] [TIFF OMITTED] TP08JA20.005
(8) Unit 3: Southeast San Diego, San Diego County, California.
(i) Unit 3 consists of 11,213 ha (27,709 ac) in San Diego County
and is composed of lands owned by the Federal Government (4,213 ha
(10,411 ac)), the State of California (2,074 ha (5,124 ac)), local
jurisdictions (primarily the City and County of San Diego; 1,162 ha
(2,871 ac)), and private or other ownership (3,765 ha (9,303 ac)).
(ii) Note: Map of Unit 3, Southeast San Diego, follows:
[[Page 1050]]
[GRAPHIC] [TIFF OMITTED] TP08JA20.006
* * * * *
Dated: November 26, 2019.
Margaret E. Everson,
Principal Deputy Director, Exercising the Authority of the Director,
for the U.S. Fish and Wildlife Service.
[FR Doc. 2019-28461 Filed 1-7-20; 8:45 am]
BILLING CODE 4333-15-P