Endangered and Threatened Wildlife and Plants; Threatened Species Status for Black Pinesnake With 4(d) Rule, 60467-60489 [2015-25270]
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Vol. 80
Tuesday,
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October 6, 2015
Part III
Department of the Interior
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Fish and Wildlife Service
50 CFR Part 17
Endangered and Threatened Wildlife and Plants; Threatened Species
Status for Black Pinesnake With 4(d) Rule; Final Rule
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Federal Register / Vol. 80, No. 193 / Tuesday, October 6, 2015 / Rules and Regulations
DEPARTMENT OF THE INTERIOR
Fish and Wildlife Service
50 CFR Part 17
[Docket No. FWS–R4–ES–2014–0046;
4500030113]
RIN 1018–BA03
Endangered and Threatened Wildlife
and Plants; Threatened Species Status
for Black Pinesnake With 4(d) Rule
Fish and Wildlife Service,
Interior.
ACTION: Final rule.
AGENCY:
We, the U.S. Fish and
Wildlife Service (Service), determine
threatened species status under the
Endangered Species Act of 1973 (Act),
as amended, for the black pinesnake
(Pituophis melanoleucus lodingi), a
reptile subspecies from Alabama,
Louisiana, and Mississippi. The effect of
this rule is to add this subspecies to the
List of Endangered and Threatened
Wildlife. We are also adopting a rule
under the authority of section 4(d) of the
Act (a ‘‘4(d) rule’’) to provide for the
conservation of the black pinesnake.
DATES: This rule is effective November
5, 2015.
ADDRESSES: This final rule is available
on the Internet at https://
www.regulations.gov and https://
www.fws.gov/mississippiES/. Comments
and materials we received, as well as
supporting documentation we used in
preparing this rule, are available for
public inspection at https://
www.regulations.gov. All of the
comments, materials, and
documentation that we considered in
this rulemaking are available by
appointment, during normal business
hours at: U.S. Fish and Wildlife Service,
Mississippi Ecological Services Field
Office, 6578 Dogwood View Parkway,
Jackson, MS 39213; by telephone at
601–965–4900; or by facsimile at 601–
965–4340.
FOR FURTHER INFORMATION CONTACT:
Stephen Ricks, Field Supervisor, U.S.
Fish and Wildlife Service, Mississippi
Ecological Services Field Office, 6578
Dogwood Parkway, Jackson, MS 39213;
by telephone 601–965–4900; or by
facsimile 601–965–4340. Persons who
use a telecommunications device for the
deaf (TDD) may call the Federal
Information Relay Service (FIRS) at
800–877–8339.
SUPPLEMENTARY INFORMATION:
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SUMMARY:
Executive Summary
Why we need to publish a rule. Under
the Act, a species may warrant
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protection through listing if we
determine that it is endangered or
threatened throughout all or a
significant portion of its range. Listing a
species as an endangered or threatened
species can only be completed by
issuing a rule.
This rule lists the black pinesnake
(Pituophis melanoleucus lodingi) as a
threatened species. It includes
provisions published under the
authority of section 4(d) of the Act that
are necessary and advisable to provide
for the conservation of the black
pinesnake.
The basis for our action. Under the
Act, we may 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 black
pinesnake is threatened based on four of
these five factors (Factors A, C, D, and
E), specifically the past and continuing
loss, degradation, and fragmentation of
habitat in association with silviculture,
urbanization, and fire suppression; road
mortality; and the intentional killing of
snakes by individuals.
Peer review and public comment. We
sought comments from independent
specialists to ensure that our
determination is based on scientifically
sound data, assumptions, and analyses.
We also considered all comments and
information we received during two
public comment periods.
Previous Federal Action
Federal actions for the black
pinesnake prior to publication of the
proposed listing rule are outlined in that
rule, which was published on October 7,
2014 (79 FR 60406). Publication of the
proposed rule opened a 60-day
comment period, which closed on
December 8, 2014. On March 11, 2015,
we published a proposed critical habitat
designation for the black pinesnake (80
FR 12846) and invited the public to
comment on the critical habitat
proposal; the entire October 7, 2014,
proposed listing rule; and the draft
economic analysis of the proposed
critical habitat designation. This second
60-day comment period ended on May
11, 2015.
We will finalize the designation of
critical habitat for the black pinesnake
at a later date.
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Background
Species Information
Species Description and Taxonomy
Pinesnakes (genus Pituophis) are
large, non-venomous, oviparous (egglaying) constricting snakes with keeled
scales and disproportionately small
heads (Conant and Collins 1991, pp.
201–202). Their snouts are pointed.
Black pinesnakes are distinguished from
other pinesnakes by being dark brown to
black both on the upper and lower
surfaces of their bodies. There is
considerable individual variation in
adult coloration (Vandeventer and
Young 1989, p. 34), and some adults
have russet-brown snouts. They may
also have white scales on their throat
and ventral surface (Conant and Collins
1991, p. 203). In addition, there may
also be a vague pattern of blotches on
the end of the body approaching the tail.
Adult black pinesnakes range from 48 to
76 inches (in) (122 to 193 centimeters
(cm)) long (Conant and Collins 1991, p.
203; Mount 1975, p. 226). Young black
pinesnakes often have a blotched
pattern, typical of other pinesnakes,
which darkens with age. The
subspecies’ defensive posture when
disturbed is particularly interesting;
when threatened, it throws itself into a
coil, vibrates its tail rapidly, strikes
repeatedly, and utters a series of loud
hisses (Ernest and Barbour 1989, p.
102).
Pinesnakes (Pituophis melanoleucus)
are members of the Class Reptilia, Order
Squamata, Suborder Serpentes, and
Family Colubridae. There are three
recognized subspecies of P.
melanoleucus distributed across the
eastern United States (Crother 2012, p.
66; Rodriguez-Robles and De JesusEscobar 2000, p. 35): The northern
pinesnake (P. m. melanoleucus); black
pinesnake (P. m. lodingi); and Florida
pinesnake (P. m. mugitus). The black
pinesnake was originally described by
Blanchard (1924, pp. 531–532), and is
geographically isolated from all other
pinesnakes. However, there is evidence
that the black pinesnake was in contact
with other pinesnakes in the past. A
form intermediate between P. m. lodingi
and P. m. mugitus occurs in Baldwin
and Escambia Counties, Alabama, and
Escambia County, Florida, and may
display morphological characteristics of
both subspecies (Conant 1956, pp. 10–
11). These snakes are separated from
populations of the black pinesnake by
the extensive Tensas-Mobile River Delta
and the Alabama River, and it is
unlikely that there is currently gene
flow between pinesnakes across the
Delta (Duran 1998a, p. 13; Hart 2002, p.
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23). A study on the genetic structure of
the three subspecies of P. melanoleucus
(Getz et al. 2012, p. 2) showed evidence
of mixed ancestry, and supported the
current subspecies designations and the
determination that all three are
genetically distinct groups. Evidence
suggests a possible historical
intergradation between P. m. lodingi
and P. ruthveni (Louisiana pinesnake),
but their current ranges are no longer in
contact and intergradation does not
presently occur (Crain and Cliburn
1971, p. 496).
Habitat
Black pinesnakes are endemic to the
longleaf pine ecosystem that once
covered the southeastern United States.
Optimal habitat for these snakes
consists of sandy, well-drained soils
with an open-canopied overstory of
longleaf pine, a reduced shrub layer,
and a dense herbaceous ground cover
(Duran 1998a, p. 2). Duran (1998b, pp.
1–32) conducted a radio-telemetry study
of the black pinesnake that provided
data on habitat use. Snakes in this study
were usually located on well-drained,
sandy-loam soils on hilltops, on ridges,
and toward the tops of slopes in areas
dominated by longleaf pine. With other
habitat types readily available on the
landscape, we can infer that these
upland habitats were preferred by black
pinesnakes. They were rarely found in
riparian areas, hardwood forests, or
closed canopy conditions. From radiotelemetry studies, black pinesnakes
were located below ground 53 to 70
percent of the time (Duran 1998a, p. 12;
Yager et al. 2005, p. 27; Baxley and
Qualls 2009, p. 288). These locations
were usually in the trunks or root
channels of rotting pine stumps.
During two additional radiotelemetry
studies, individual pinesnakes were
observed in riparian areas, hardwood
forests, and pine plantations
periodically, but the majority of their
time was still spent in intact upland
longleaf pine habitat. While they used
multiple habitat types periodically, they
repeatedly returned to core areas in the
longleaf pine uplands and used the
same pine stump and associated rottedout root system from year to year,
indicating considerable site fidelity
(Yager, et al. 2006, pp. 34–36; Baxley
2007, p. 40). Several radio-tracked
juvenile snakes were observed using
mole or other small mammal burrows
rather than the bigger stump holes used
by adult snakes (Lyman et al. 2007, pp.
39–41).
Pinesnakes have shown some
seasonal movement trends of emerging
from overwintering sites in February,
moving to an active area from March
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until September, and then moving back
to their overwintering areas (Yager et al.
2006, pp. 34–36). The various areas
utilized throughout the year may not
have significantly different habitat
characteristics, but these movement
patterns illustrate that black pinesnakes
may need access to larger, unfragmented
tracts of habitat to accommodate fairly
large home ranges while minimizing
interactions with humans.
Life History
Black pinesnakes are active during the
day but only rarely at night. As
evidenced by their pointed snout and
enlarged rostral scale (the scale at the
tip of their snout), they are
accomplished burrowers capable of
tunneling in loose soil, potentially for
digging nests or excavating rodents for
food (Ernst and Barbour 1989, pp. 100–
101). Black pinesnakes are known to
consume a variety of food, including
nestling rabbits (Sylvilagus aquaticus),
bobwhite quail (Colinus virginianus)
and their eggs, and eastern kingbirds
(Tyrannus tyrannus) (Vandeventer and
Young 1989, p. 34; Yager et al. 2005, p.
28); however, rodents represent the
most common type of prey. The
majority of documented prey items are
hispid cotton rats (Sigmodon hispidus),
various species of mice (Peromyscus
spp.), and, to a lesser extent, eastern fox
squirrels (Sciurus niger) (Rudolph et al.
2002, p. 59; Yager et al. 2005, p. 28).
During field studies of black pinesnakes
in Mississippi, hispid cotton rats and
cotton mice (Peromyscus gossypinus)
were the most frequently trapped small
mammals within black pinesnake home
ranges (Duran and Givens 2001, p. 4;
Baxley 2007, p. 29). These results
suggest that these two species of
mammals represent essential
components of the snake’s diet (Duran
and Givens 2001, p. 4).
Duran and Givens (2001, p. 4)
estimated the average size of individual
black pinesnake home ranges (Minimum
Convex Polygons (MCPs)) at Camp
Shelby, Mississippi, to be 117.4 acres
(ac) (47.5 hectares (ha)) using data
obtained during their radio-telemetry
study. A more recent study conducted at
Camp Shelby, a National Guard training
facility operating under a special use
permit on the De Soto National Forest
(NF) in Forrest, George, and Perry
Counties, Mississippi, provided home
range estimates from 135 to 385 ac (55
to 156 ha) (Lee 2014a, p. 1). Additional
studies from the De Soto NF and other
areas of Mississippi have documented
somewhat higher MCP home range
estimates, from 225 to 979 ac (91 to 396
ha) (Baxley and Qualls 2009, p. 287).
The smaller home range sizes from
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Camp Shelby may be a reflection of the
higher habitat quality at the site
(Zappalorti in litt. 2015), as the snakes
may not have to travel great distances to
meet their ecological needs. A modeling
study of movement patterns in
bullsnakes (Pituophis catenifer sayi)
revealed that home range sizes
increased as a function of the amount of
avoided habitat, such as agricultural
fields (Kapfer et al. 2010, p. 15). As
snakes are forced to increase the search
radius to locate preferred habitat, their
home range invariably increases.
The dynamic nature of individual
movement patterns supports the
premise that black pinesnake habitat
should be maintained in large
unfragmented parcels to sustain survival
of a population. In the late 1980s, a
gopher tortoise preserve of
approximately 2,000 ac (809 ha) was
created at Camp Shelby. This preserve,
which has limited habitat fragmentation
and has been specifically managed with
prescribed burning and habitat
restoration to support the recovery of
the gopher tortoise, is centrally located
within a much larger managed area
(over 100,000 ac (40,469 ha)) that
provides habitat for one of the largest
known populations of black pinesnakes
in the subspecies’ range (Lee 2014a, p.
1).
No population and habitat viability
analyses have been conducted for the
black pinesnake due primarily to a lack
of essential life-history and
demographic data, such as estimates of
growth and reproductive rates, as is the
case for many snake species (Dorcas and
Willson 2009, p. 36; Willson et al. 2011,
pp. 42–43). However, radio-tracking
studies have shown that a reserve area
should include an unconstrained
(unfragmented) activity area large
enough to accommodate the longdistance movements that have been
reported for the subspecies (Baxley and
Qualls 2009, pp. 287–288). As with
many snake species, fragmentation by
roads, urbanization, or incompatible
habitat conversion continues to be a
major threat affecting the black
pinesnake (see discussion below under
Factor E: Other Natural or Manmade
Factors Affecting Its Continued
Existence).
Very little information on the black
pinesnake’s breeding and egg-laying is
available from the wild. Lyman et al.
(2007, p. 39) described the time frame
of mid-May through mid-June as the
period when black pinesnakes breed at
Camp Shelby, and mating activities may
take place in or at the entrance to
armadillo burrows. However, Lee (2007,
p. 93) described copulatory behavior in
a pair of black pinesnakes in late
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September. Based on dates when
hatchling black pinesnakes have been
captured, the potential nesting and egg
deposition period of gravid females
extends from the last week in June to
the last week of August (Lyman et al.
2009, p. 42). In 2009, a natural nest with
a clutch of six recently hatched black
pinesnake eggs was found at Camp
Shelby (Lee et al. 2011, p. 301) at the
end of a juvenile gopher tortoise
burrow. As there is only one
documented natural black pinesnake
nest, it is unknown whether the
subspecies exhibits nest site fidelity;
however, nest site fidelity has been
described for other Pituophis species.
Burger and Zappalorti (1992, pp. 333–
335) conducted an 11-year study of nest
site fidelity of northern pinesnakes in
New Jersey, and documented the exact
same nest site being used for 11 years
in a row, evidence of old egg shells in
73 percent of new nests, and recapture
of 42 percent of female snakes at prior
nesting sites. The authors suggest that
females returning to a familiar site
should have greater knowledge of
available resources, basking sites,
refugia, and predator pressures;
therefore they would have the potential
for higher reproductive success
compared with having to find a new
nest site (Burger and Zappalorti 1992,
pp. 334–335). If black pinesnakes show
similar site fidelity, it follows that they
too might have higher reproductive
success if their nesting sites were to
remain undisturbed.
Specific information about
underground refugia of the black
pinesnake was documented during a
study conducted by Rudolph et al.
(2007, p. 560), which involved
excavating five sites used by the
subspecies for significant periods of
time from early December through late
March. The pinesnakes occurred singly
at shallow depths (mean of 9.8 in (25
cm); maximum of 13.8 in (35 cm)) in
chambers formed by the decay and
burning of pine stumps and roots
(Rudolph et al. 2007, p. 560). The
refugia were not excavated by the
snakes beyond minimal enlargement of
the preexisting chambers. These sites
are not considered true hibernacula
because black pinesnakes move above
ground on warm days throughout all
months of the year (Rudolph et al. 2007,
p. 561; Baxley 2007, pp. 39–40). Means
(2005, p. 76, and references therein)
suggested that longleaf pine is likely to
be more important than other southern
pine species to animals using
stumpholes, because longleaf pine has a
more resinous heartwood, deeper
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taproot, and lateral roots spreading out
50 feet (ft) (15.2 meters (m)) or more.
Longevity of wild black pinesnakes is
not well documented, but can be at least
11 years, based on recapture data from
Camp Shelby (Lee 2014b, pers. comm.).
The longevity record for a captive male
black pinesnake is 14 years, 2 months
(Slavens and Slavens 1999, p. 1).
Recapture and growth data from black
pinesnakes on Camp Shelby indicate
that they may not reach sexual maturity
until their 4th or possibly 5th year
(Yager et al. 2006, p. 34).
Potential predators of black
pinesnakes include red-tailed hawks
(Buteo jamaicensis), raccoons (Procyon
lotor), skunks (Mephitis mephitis), red
foxes (Vulpes vulpes), feral cats (Felis
catus), and domestic dogs (Canis
familiaris) (Ernst and Ernst 2003, p. 284;
Yager et al. 2006, p. 34; Lyman et al.
2007, p. 39).
Historical/Current Distribution
There are historical records for the
black pinesnake from one parish in
Louisiana (Washington Parish), 14
counties in Mississippi (Forrest, George,
Greene, Harrison, Jackson, Jones, Lamar,
Lauderdale, Marion, Pearl River, Perry,
Stone, Walthall, and Wayne Counties),
and 3 counties in Alabama west of the
Mobile River Delta (Clarke, Mobile, and
Washington Counties). Historically,
populations likely occurred in all of
these contiguous counties; however,
current records do not support the
distribution of black pinesnakes across
this entire area. Recently, a black
pinesnake was observed in a new
county, Lawrence County, Mississippi,
where the subspecies had not
previously been documented (Lee
2014b, p. 1). However, is not known
whether this snake represents a new
extant population.
Duran (1998a, p. 9) and Duran and
Givens (2001, p. 24) concluded that
black pinesnakes have likely been
extirpated from Louisiana and from two
counties (Lauderdale and Walthall) in
Mississippi. In these two studies, all
historical and current records were
collected; land managers from private,
State, and Federal agencies with local
knowledge of the subspecies were
interviewed; and habitat of all historical
records was visited and assessed. As
black pinesnakes have not been reported
west of the Pearl River in either
Mississippi or Louisiana in over 30
years, and since there are no recent
(post-1979) records from Pearl River
County (Mississippi), we believe them
to likely be extirpated from that county
as well.
In general, pinesnakes are particularly
difficult to survey given their tendency
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to remain below ground most of the
time. However, a review of records,
interviews, and status reports, coupled
with a Geographic Information System
(GIS) analysis of current suitable
habitat, indicated that black pinesnakes
likely remain in all historical counties
in Alabama and in 11 out of 14
historical counties in Mississippi
(Forrest, George, Greene, Harrison,
Jackson, Jones, Lamar, Marion, Perry,
Stone, and Wayne Counties). Black
pinesnake populations in many of the
occupied counties in Mississippi occur
in the De Soto NF. Much of the habitat
outside of De Soto NF has become
highly fragmented, and populations on
these lands appear to be small and
isolated on islands of suitable habitat
(Duran 1998a, p. 17; Barbour 2009, pp.
6–13).
Population Estimates and Status
Duran and Givens (2001, pp. 1–35)
reported the results of a habitat
assessment of all black pinesnake
records (156) known at the time of their
study. Habitat suitability of the sites was
based on how the habitat compared to
that selected by black pinesnakes in a
previously completed telemetry study of
a population occupying what was
considered high-quality habitat (Duran
1998b, pp. 1–44). Black pinesnake
records were joined using a contiguous
suitable habitat model (combining areas
of suitable habitat with relatively
unrestricted gene flow) to create
‘‘population segments’’ (defined as ‘‘that
portion of the population located in a
contiguous area of suitable habitat
throughout which gene flow is relatively
unrestricted’’) from the two-dimensional
point data. These population segments
were then assessed using a combination
of a habitat suitability rating and data on
how recently and/or frequently black
pinesnakes had been recorded at the
site. By examining historical population
segments, Duran and Givens (2001, p.
10) determined that 22 of the 36 (61
percent) population segments known at
the time of their study were either
extirpated (subspecies no longer
present), or were in serious jeopardy of
extirpation. During the development of
this listing rule, we used GIS to reassess
the habitat suitability of the 14
population segments not determined to
be in serious jeopardy of extirpation by
Duran and Givens (2001, p. 10). Our
estimate of the number of populations
was derived by overlaying habitat from
a current GIS analysis with the locality
record data (post-1990) from species/
subspecies experts, Natural Heritage
Programs, State wildlife agencies, and
the site assessments of Duran and
Givens (2001, pp. 1–35) and Barbour
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(2009, pp. 1–36). We used locality
records back to 1990, because this date
coincides with that chosen by Duran
and Givens (2001, pp. 1–35) and
Barbour (2009, pp. 1–36) in their
comprehensive black pinesnake habitat
assessments. Using the movement and
home range data provided by black
pinesnake researchers (Duran 1998b, pp.
15–19; Yager et al. 2005, pp. 27–28;
Baxley and Qualls 2009, pp. 287–288),
a population was determined to be
distinct if it was separated from other
localities by more than 1.3 miles (mi.)
(2.1 kilometers (km)). Using our recent
assessment, we estimate that 11 of the
14 populations of black pinesnakes
remain extant today. Five of these 11
populations occur in Alabama and 6 in
Mississippi. However, current data are
insufficient to make a determination of
the number of individuals that comprise
each remaining population.
Our current GIS analysis indicates
that 3 of the 11 remaining black
pinesnake populations, all located in
Alabama and lacking recent records, are
not likely to persist long term due to:
Presence on, or proximity to, highly
fragmented habitat; lack of protection
and habitat management for the site; or
both. The majority of the known black
pinesnake records, and much of the best
remaining habitat, occurs within the
two ranger districts that make up the De
Soto NF in Mississippi. These lands
represent a small fraction of the former
longleaf pine ecosystem that was
present in Louisiana, Mississippi, and
Alabama, and was historically occupied
by the subspecies. At this time, we
believe the six populations in
Mississippi (five on the De Soto NF and
one in Marion County) and two sites in
Alabama (in Clarke County) are the only
ones considered likely to persist long
term because of their presence on
relatively unfragmented forest and
protection or management afforded to
the habitat or subspecies.
Summary of Comments and
Recommendations
In the proposed rule published on
October 7, 2014 (79 FR 60406), we
requested that all interested parties
submit written comments on the
proposal by December 8, 2014. We
reopened the comment period on the
listing proposal on March 11, 2015 (80
FR 12846) with our publication of a
proposed critical habitat designation for
the subspecies. This second 60-day
comment period ended on May 11,
2015. During both comment periods, we
also contacted appropriate Federal and
State agencies, scientific experts and
organizations, and other interested
parties and invited them to comment on
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the proposal. Newspaper notices
inviting general public comment were
published in the Mobile Press Register
and Hattiesburg American on October
12, 2014, and again on March 15, 2015.
We also presented several webinars on
the proposed listing and critical habitat
rules, and invited all stakeholders,
media, and congressional
representatives to participate and ask
any questions. The webinar information
was posted on our Web site along with
copies of the proposed listing rule, press
release, and a question/answer
document. We did not receive any
requests for a public hearing within the
designated timeframe. During the two
comment periods for the proposed rule,
we received nearly 300 comments
addressing the proposed listing and
critical habitat rules. In this final rule,
we address only the comments
regarding the proposed listing and the
associated rule under section 4(d) of the
Act (16 U.S.C. 1531 et seq.). Comments
specific to the proposed critical habitat
designation (80 FR 12846) for this
subspecies will be addressed in the final
critical habitat determination at a later
date. All relevant substantive
information provided during comment
periods has either been incorporated
directly into this final determination or
is addressed below.
Peer Reviewer Comments
In accordance with our peer review
policy published on July 1, 1994 (59 FR
34270), we solicited expert opinion
from six knowledgeable individuals
with scientific expertise that included
familiarity with the black pinesnake and
its habitat, biological needs, and threats,
as well as those with experience in
studying other pinesnake species. We
received responses from all of the peer
reviewers.
We reviewed all comments we
received from the peer reviewers for
substantive issues and new information
regarding the listing of black pinesnake.
The peer reviewers generally concurred
with our methods and conclusions, and
provided additional information,
clarifications, and suggestions to
improve this final rule. Four of the peer
reviewers specifically expressed their
support for the subspecies’ listing as a
threatened species; a fifth peer reviewer
questioned our characterization that the
rate of decline had moderated for this
subspecies due to conservation actions,
and suggested the black pinesnake
might actually qualify as endangered.
The sixth peer reviewer limited her
comments to the critical habitat
proposal and did not specifically
address the proposed listing rule.
Several peer reviewers noted that
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information was limited on some lifehistory attributes but stated that, based
on the best available information, the
Service had presented a compelling case
for listing as threatened. Four of the
peer reviewers stressed the importance
of stump holes and associated root
systems to the subspecies and most
noted the importance of conserving
outlying populations to support
conservation genetics of the subspecies.
Substantive peer reviewer comments are
addressed in the following summaries
and incorporated into the final rule as
appropriate.
(1) Comment: Peer reviewers provided
additional information and suggestions
for clarifying and improving the
accuracy of the information in the
‘‘Habitat,’’ ‘‘Life History,’’ ‘‘Historical/
Current Distribution,’’ Summary of
Factors Affecting the Species, and
Available Conservation Measures
sections of the preamble of the proposed
rule.
Our Response: We appreciate these
corrections and suggestions, and have
made changes to this final rule to reflect
the peer reviewers’ input.
(2) Comment: Two peer reviewers
stated that our characterization of ‘‘open
canopy’’ as ≤70 percent canopy coverage
in our discussion of target suitable black
pinesnake habitat, under the
‘‘Provisions of the Proposed Special
Rule’’ section, was not appropriate.
They stated that studies have shown
that pinesnakes more frequently utilize
areas with <50 percent canopy coverage.
Our Response: There appears to be
some variability in the literature as to
what percentage of canopy closure
constitutes an open canopy. Therefore,
we have removed any reference of a
specific value for canopy coverage as
optimal habitat for the black pinesnake
in this final rule. We have focused
instead on the presence of an abundant
herbaceous groundcover, which is a
component of optimal habitat for this
subspecies and is provided for in an
appropriately open-canopied forest.
(3) Comment: One peer reviewer
stated that the increasing use of erosion
control blankets (ECBs) containing
polypropylene mesh poses a potential
threat to black pinesnakes. ECBs, which
are often used for erosion control on
pipeline construction projects, but may
also be used for bird exclusion, have
been documented to entangle many
species of snakes, causing lacerations
and mortality. They often take years to
decompose, presenting a long-term
entanglement hazard, even when
discarded.
Our Response: We appreciate this
new information, and have made
changes to this final rule to reflect the
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peer reviewer’s input (see ‘‘Factor E:
Other Natural or Manmade Factors
Affecting Its Continued Existence’’ in
the Summary of Factors Affecting the
Species section, below).
(4) Comment: One peer reviewer and
several public commenters questioned
whether our determination of
‘‘threatened’’ was appropriate, instead
of ‘‘endangered.’’ While the public
commenters provided no justification
for their statements, the peer reviewer
suggested there are no data that indicate
rates of population decline have
moderated; therefore it is possible that
the decline has accelerated. The peer
reviewer mentioned that there have
been minimal conservation
accomplishments concerning the black
pinesnake throughout its intermittent
status as a candidate species over the
last 30 years.
Our Response: The Act defines an
endangered species as any species that
is ‘‘in danger of extinction throughout
all or a significant portion of its range’’
and a threatened species as any species
‘‘that is likely to become endangered
throughout all or a significant portion of
its range within the foreseeable future.’’
The determination to list the black
pinesnake as threatened was based on
the best available scientific and
commercial data on its status, the
existing and potential threats to the
subspecies, and ongoing conservation
actions. While it may be difficult to
determine the ultimate success of these
conservation actions, we know that
discussions between the Service and our
public lands partners, in particular,
have resulted in new language within
their formal management plans to
protect and enhance black pinesnake
habitat. For example, the Mississippi
Army National Guard (MSARNG) has
amended its integrated natural resources
management plan (INRMP) to provide
for the protection and management of
the black pinesnake (see ‘‘Conservation
Efforts to Reduce Habitat Destruction,
Modification, or Curtailment of Its
Range’’ under Factor A in the Summary
of Factors Affecting the Species section,
below).
We find that endangered status is not
appropriate for the black pinesnake
because, while we found the threats to
the subspecies to be significant and
rangewide, we did not find that the
threats currently place the subspecies in
danger of extinction throughout all or a
significant portion of its range.
Although there is a general decline in
the overall range of the subspecies and
its available habitat, we believe that the
rate of decline has slowed in recent
years due to restoration efforts, and
range contraction is not severe enough
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to indicate imminent extinction.
Therefore, we find that the black
pinesnake meets the definition of a
threatened species based on the
immediacy, severity, and scope of the
threats described above (see
Determination section, below).
(5) Comment: Two peer reviewers and
several public commenters questioned
our determination that illegal collection
from the wild was not a significant
threat to the black pinesnake. One peer
reviewer suggested that people in the
pet trade may value wild-caught
individuals with novel genetics, while
public commenters postulated that the
listing of the pinesnake may make it
more difficult for enthusiasts and
hobbyists to purchase individuals,
therefore snakes from wild populations
may be more vulnerable to collection.
Additionally, a peer reviewer suggested
that illegal collection would have a
drastic impact on those populations that
may have only a few individuals.
Our Response: In this final listing
rule, we continue to rely upon the best
scientific and commercial information
available, which in this case includes
correspondence with individuals who
have experience with the history of the
pinesnake pet trade in the area (see
‘‘Factor B: Overutilization for
Commercial, Recreational, Scientific, or
Educational Purposes’’ in the Summary
of Factors Affecting the Species section,
below). Those sources maintained that
the need for collection of wild
specimens is thought to have declined
dramatically due to the pet trade being
currently saturated with captive-bred
black pinesnakes. There is no
information available to suggest that
illegal collection will increase once the
subspecies is listed (and no new
information to support this was received
during the comment periods). Since the
black pinesnake is fossorial (and thus
difficult to locate), and does not
overwinter in communal den sites, we
believe this potential threat to be minor.
(6) Comment: Two peer reviewers and
a number of public commenters stated
that using locality data from 1990 as
support for presence of extant
populations may not reflect the current
status of black pinesnakes and the
subspecies may have since disappeared
from these sites. On the other hand, a
third peer reviewer stated that the lack
of records for several decades in an area
is not sufficient evidence to support that
black pinesnakes have been extirpated
from that area if some suitable habitat
still exists.
Our Response: As we discussed in
‘‘Population Estimates and Status’’ in
the Background section (above), we
used data dated back to 1990, which is
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consistent with the date used by black
pinesnake researchers to represent
occupied localities in their
comprehensive habitat assessments of
black pinesnake localities. These
records and the researchers’ reports
represent the best scientific data
available at the time of listing. We
conducted an updated GIS habitat
analysis of the areas containing the post1990 records, and if we found that
sufficient forested habitat was still
present, we determined that there was a
reasonable likelihood that black
pinesnake populations may still occur
in those areas. If suitable habitat had
disappeared in proximity to the record,
we made the assumption that although
a few individual snakes may still be
present, the area likely could no longer
support a population capable of
persisting long term.
(7) Comment: Three peer reviewers
and several other commenters
questioned our discussion and
assessment relating to the viability of
the black pinesnake populations. Two
peer reviewers noted we needed to
supply numerical values to demonstrate
both population viability and minimum
reserve area.
Our Response: We do not currently
have data (numerical values) on what
constitutes a viable population for the
black pinesnake and, therefore, have
removed any discussion on viability of
populations from this final listing rule.
As stated in the ‘‘Population Estimates
and Status’’ section under the
Background section, above, we
determined that 3 of the 11 currently
known populations were not likely to
persist in the long term due to their
location on fragmented habitat and the
lack of any protection or management in
place. Viability, particularly with
respect to minimum reserve area
(minimal acreage necessary to support a
viable population), will be discussed in
our final critical habitat designation.
Federal Agency Comments
(8) Comment: One Federal agency and
many public commenters disagreed
with our assessment of the current
decline of the longleaf pine ecosystem
in the Southeast. These commenters
also questioned our statement that
increases in longleaf pine forests
through restoration efforts in the
Southeast do not align with the range of
the black pinesnake.
Our Response: See our discussion of
longleaf pine habitat under Factor A:
The Present or Threatened Destruction,
Modification, or Curtailment of Its
Habitat or Range. Although there has
been an extensive effort to restore
longleaf pine in the Southeast, the
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footprint of the longleaf pine ecosystem
across its historical range continues to
contract, with considerable losses being
attributed to the conversion to loblolly
pine (Oswalt et al. 2015, p. 504).
Increases in longleaf pine acreage from
restoration efforts do not overlap
completely with the range of the black
pinesnake (Ware 2014, pers. comm.).
Recent outlooks for the southern Gulf
region (which includes the range of the
black pinesnake) still predict large
percentage losses in longleaf pine
distribution; in fact, Clarke County,
Alabama, and several Mississippi
counties occupied by the black
pinesnake are predicted to have some of
the highest percentages of longleaf pine
loss in the Southeast (Klepzig et al.
2014, p. 53).
(9) Comment: One Federal agency and
many public commenters disagreed that
urbanization is still a contributor to
habitat loss within the range of the black
pinesnake and expressed concern with
our forecast on the continued loss of
forest land to urbanization over the next
50 years. Commenters stated that our
forestry forecast was not adjusted to
account for the recent economic
collapse and subsequent changes in U.S.
timber markets and forecasts.
Our Response: We recognize that not
all areas within the range of the black
pinesnake are forecast to have the same
predicted levels of population growth in
the next few decades, and some rural
areas may experience population
declines. However, we also recognize
that many counties within the black
pinesnake’s range are still forecast to
experience increases in urban land use,
especially in areas near Mobile,
Alabama, that have historically seen
drastic habitat loss. We used the
Southern Forest Futures Project to
develop information in this rule
regarding factors that are likely to result
in forest changes within the range of the
black pinesnake; this analysis covered a
number of different scenarios of future
population/income growth and timber
prices and baseline tree planting rates
(Klepzig et al. 2014, pg. vi). In all future
scenarios, the southern Gulf region
(which includes the range of the black
pinesnake), as well as all the other
southern U.S. subregions, exhibited a
strong growth in population (Klepzig et
al. 2014, pg. 20). See our discussion of
longleaf pine habitat under Factor A:
The Present or Threatened Destruction,
Modification, or Curtailment of Its
Habitat or Range.
(10) Comment: One Federal agency
and numerous commenters disagreed
that clearcut harvesting (clearcutting)
constituted a management activity that
destroys black pinesnake habitat. Some
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public commenters further elaborated
that it is the activities occurring prior to
the clearcut, or the managed condition
after the clearcut, which are the
potential threats to habitat. Many public
commenters recommended that
clearcutting be exempted as an
intermediate treatment under the 4(d)
rule.
Our Response: We recognize that
while some clearcut harvesting may
have a negative impact on black
pinesnake habitat, at other times it is a
necessary management tool to restore a
forest to a condition suitable for
pinesnakes and other native wildlife.
For instance, clearcutting off-site pine
species prior to afforestation or
reforestation with longleaf pine and
clearcutting with longleaf reserves to
promote natural regeneration can both
be very appropriate for creating and
maintaining suitable black pinesnake
habitat. Therefore, we removed the
specific activity ‘‘clearcutting’’ from the
list of activities which could potentially
result in a violation of Section 9 of the
Act. The 4(d) rule identifies activities
causing significant subsurface
disturbance or the conversion of the
native longleaf pine forest to another
forest cover type (or agricultural/urban
uses) as the specific activities
potentially causing take and threatening
the subspecies.
(11) Comment: Two Federal agencies,
one State agency, and numerous public
commenters stated that more data and
information were needed before
proceeding with a federal listing of the
black pinesnake. Commenters noted the
lack of demographic data, life-history
studies, and current rangewide surveys
and population estimates as critical
information needed to assess the
subspecies’ status and population
trends. Several others noted that
population estimates should be
considered a minimum because
pinesnakes are difficult to locate given
their tendency to remain below ground
most of the time, and because most
black pinesnake records were the result
of incidental observations in the course
of other activities or biased based on
number of observers frequenting the
area.
Our Response: It is often the case that
data are limited for rare species, and we
acknowledge that it would be useful to
have more information on the black
pinesnake. However, as required by the
Act, we base our determination on the
best available scientific and commercial
information at the time of our
rulemaking. Trend information on
population levels and habitat loss/
availability or population/habitat
indices often represent the best
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available information upon which to
base listing actions. In arriving at our
determination that the black pinesnake
meets the definition of ‘‘threatened’’
under the Act, we note our conclusion
is not based on estimates of population
size or strictly on observational data, but
on the reductions in range and numbers
of populations due to past threats, and
the negative impact of ongoing threats to
those few populations that remain.
Observational data (records) were only
part of the analysis of population trends,
as we evaluated habitat suitability
through GIS as part of a probability of
occurrence determination (please see
our response to Comment 6, above). The
Service determined that the available
suitable habitat has diminished to the
point that many historical populations
have been severely reduced and gene
flow between surviving populations has
been restricted to the point of
preventing the natural recovery of the
subspecies.
(12) Comment: One Federal agency
expressed concern over our statement
that activities causing ‘‘ground
disturbance’’ could potentially result in
a violation of take under section 9 of the
Act and thereby impact military training
or habitat restoration on the Camp
Shelby Joint Forces Training Center
(Camp Shelby) in Mississippi.
Our Response: Following a review of
the comments and our revision of the
4(d) rule, we have clarified the list of
potential section 9 violations (see
Available Conservation Measures,
below). We specifically focused on
those activities that may impact the
black pinesnake refugia (stump holes),
the most important habitat feature for
the subspecies, in our development of
the list of potential section 9 violations.
Therefore, we have replaced ‘‘activities
causing ground disturbance’’ with a
more focused statement of those
‘‘activities causing significant
subsurface disturbance.’’ We do not
believe that normal military training
operations will cause significant
subsurface disturbance in the forested
areas occupied by black pinesnakes, as
artillery firing occurs on ranges that are
maintained as mowed open fields, and
troop- and vehicle-maneuvering
activities do not cause significant
disturbance that would destroy
underground refugia. Habitat restoration
and maintenance activities are covered
under Camp Shelby’s INRMP, which
includes specific conservation measures
to benefit black pinesnakes, including
protection and maintenance of pine
stumps (MSARNG 2014, p. 93). Military
training operations on Camp Shelby
have been compatible with protection
measures for the burrows of the gopher
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tortoise (Gopherus polyphemus), which
has been federally listed for 28 years.
We believe these operations will be
compatible with protecting black
pinesnakes and their habitat as well. As
we have done with the gopher tortoise,
we will work with the Department of
Defense (DoD) and Camp Shelby to
ensure their military mission can be
accomplished and habitat restoration
efforts can continue.
Comments From States
Section 4(b)(5)(A)(ii) of the Act
requires the Service to give actual notice
of any proposed listing regulation to the
appropriate agency of each State in
which the species is believed to occur,
and invite each such agency to comment
on the proposed regulation. We received
comments from the Alabama
Department of Conservation and Natural
Resources, Wildlife and Freshwater
Fisheries Division (ADCNR); the
Mississippi Department of Wildlife,
Fisheries and Parks (MDWFP); the
Secretary of State for Mississippi; and
the Louisiana Department of Wildlife
and Fisheries (LDWF). The ADCNR
provided an initial comment supporting
the listing of the black pinesnake as
threatened, which was followed later by
a letter rescinding its support for the
threatened listing and citing its belief
that additional information was needed
prior to making a listing decision. The
MDWFP noted that it did not support
any regulation or listing that would
restrict or prohibit private landowners
from managing their property for their
objectives, specifically timber
management. These agencies in
Alabama and Mississippi also expressed
concern that the 4(d) rule as proposed
was too narrow in scope and would
negatively impact private landowners
managing timber. The LDWF initially
commented that it did not consider the
black pinesnake extirpated in Louisiana,
based on a 2005 reported observation;
however, they later retracted this
statement. Based on further analysis,
LDWF determined that the 2005 report
was unverifiable and scientifically
invalid; therefore, it failed to meet the
criteria as an element of occurrence in
the Louisiana Natural Heritage Program
database. LDWF also stated that it
supported the black pinesnake’s
proposed listing as threatened with a
4(d) rule to exempt beneficial
management practices and noted that
Louisiana is continuing to lose suitable
upland pine habitat due to urban
development. Specific issues raised by
the States are addressed below.
(13) Comment: ADCNR and many
public commenters stated that the
proposed 4(d) rule was overly
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prescriptive and recommended a 4(d)
rule similar to the Louisiana black bear
(Ursus americanus luteolus) 4(d) rule,
which exempts take occurring during all
normal forestry activities that do not
negatively impact den trees (see 50 CFR
17.40(i)). ADCNR also stated that it
would support a 4(d) rule that provides
for open canopy conditions; abundant
ground cover; and refugia habitat such
as stumps, snags, and woody debris.
Our Response: We appreciate the
input from ADCNR and other
commenters, and have made
adjustments to the 4(d) rule to exempt,
among other things, all forest
management activities that maintain
lands in a forested condition, except
those activities causing significant
subsurface disturbance or converting
longleaf pine forests to other forest
cover types. This change is in
recognition of the naturally decayed or
burned-out pine stump holes as an
essential habitat feature for the black
pinesnake, much like the Louisiana
black bear 4(d) rule was developed to
protect an essential habitat feature for
that species. Not all suggested changes
were incorporated because not all
activities are consistent with a 4(d) rule
that is ‘‘necessary and advisable for the
conservation of the species.’’ We believe
this revised 4(d) rule for the black
pinesnake focuses on protecting those
habitats and features most important to
black pinesnake conservation, and
addresses the standards supported by
ADCNR. In addition, many forest
operations in Alabama and Mississippi
may already be operating in a manner
consistent with the 4(d) rule. For
instance, the language associated with
conversion of longleaf pine forests to
other forest types is consistent with
Sustainable Forestry Initiative
guidelines that protect rare and
ecologically significant native forests
(SFI 2015, p. 4), while some landowners
indicated that they did not routinely
remove stumps in these habitats.
(14) Comment: One state agency
(ADCNR) and many public commenters
requested that the comment period be
extended for the proposed listing.
Our Response: We consider the two
comment periods on the proposed
listing, totaling 120 days, to have
provided the public a sufficient
opportunity for submitting comments.
We provided a 60-day comment period
associated with the publication of the
listing proposed rule, which opened on
October 7, 2014 (79 FR 60406), and
closed on December 8, 2014. We then
reopened the comment period for an
additional 60 days on March 11, 2015,
in association with our publication of
our proposed critical habitat designation
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for the black pinesnake (80 FR 12846).
This second comment period closed on
May 11, 2015.
The Act requires the Service to
publish a final rule within 1 year from
the date we propose to list a species. In
order to extend the comment period, we
would have risked missing this
deadline, unless we sought an extension
under section 4(b)(6)(B)(i) of the Act.
The Act allows this extension is if there
is substantial disagreement regarding
the sufficiency or accuracy of the
available data relevant to the
determination or revision concerned,
but only for 6 months and only for
purposes of soliciting additional data.
Based on the comments we received and
data we evaluated, although there are
differences in interpretation of the
existing data, there is not substantial
scientific disagreement regarding the
sufficiency or accuracy of the available
data. Please also see our response to
Comment 11, above.
(15) Comment: MDWFP and many
public commenters voiced opposition to
any regulations that would prohibit
landowners from managing their lands
for their objectives with the focus on
timber management operations. The
Secretary of State for Mississippi and
many public commenters expressed
concern due to their perception that the
proposed 4(d) rule, as written,
specifically required landowners to
adhere to certain timber management
metrics, including placing limitations
on harvest size and canopy closure, as
well as requiring the planting of only
longleaf pine.
Our Response: Throughout the
development of this listing rule, we
have attempted to describe black
pinesnake habitat by characterizing the
historical ecosystem in which
pinesnakes evolved, and the primary
habitat features important to
pinesnakes, with data from publications
and reports to support the utility of
these habitat features. This has been
taken by many as a prescription for how
all landowners must manage their land
from now on; however, in no way is the
rule intended to prescribe management
conditions. The Service will not require
landowners to harvest their timber in a
certain way, nor will we restrict
landowners from managing loblolly or
other pine tree species on their lands.
We will continue to recommend that
longleaf pine be the preferred overstory
species within the historical longleaf
range. While black pinesnake habitat
management can be successfully
integrated with forestry practices in all
pine species, longleaf pine is better
suited for many reasons. Longleaf pines
have open crowns that allow more
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sunlight to reach the ground. The trees
can be burned at younger ages and can
be managed on longer rotations. Further,
longleaf pines are more disease- and
insect-resistant when compared to
loblolly pines, and more resistant to
wind damage due to the deep taproot
and smaller crown density.
It should also be noted that densely
planted pine plantations are not
considered habitat for the black
pinesnake, and, therefore, any actions in
these stands are unlikely to result in
take. In addition, landowners are not
required to adhere to the conditions
outlined in the 4(d) rule. There is no
requirement to follow these voluntary
guidelines and landowners who would
prefer not to use the exemptions may
consult with the Service on their
forestry management practices if there is
a potential to impact the black
pinesnake. No consultation would be
needed for forest management activities
outside of the known areas occupied by
the subspecies.
(16) Comment: ADCNR and many
public commenters stated that it is not
essential for longleaf pine to be the
primary forest cover for an area to be
considered black pinesnake habitat and
that it is the structure of the forest that
is more important. Therefore, longleaf
pine should be de-emphasized
throughout the rule, and it should not
be a requirement to meet the provisions
for the 4(d) rule. Consequently, some
public commenters maintained that if
there is no indication that longleaf pines
are a necessary component of black
pinesnake habitat, then the assumption
that black pinesnake populations have
declined proportionately with the
decline in longleaf pine forests is
invalid.
Our Response: We believe the
structure of the forest occupied by black
pinesnakes is very important, and we
recognize that some studies have shown
that pinesnakes have not always been
found exclusively using longleaf pine
forests, though it should be noted that
the need for open-canopy and
herbaceous understory has been
supported in these studies.
Many forests are not managed to
foster open conditions in the
understory. Typical pine plantation
management (i.e., characterized by high
stocking rates), for instance, differs from
the conditions favored by this
subspecies for several reasons. Pine
plantations are not typically maintained
in the open-canopied condition with an
abundant herbaceous groundcover that
is characteristic of the structure of this
historical ecosystem. These converted
forests differ from the native longleaf
pine ecosystem in which the black
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pinesnake evolved, most noticeably in
that they exhibit frequent canopy
closure, often use practices that destroy
subsurface structure, and have more
limitations on how fire may be used as
the primary management tool.
Even in cases where loblolly is
favored in a more open condition, it
does not function in the same way as
longleaf over the long term. In fact, the
Longleaf Alliance has said, ‘‘The
introduction of periodic fire and
recovery of groundcover and wildlife
communities may be possible without
longleaf for the short term. Eventually,
however, the fire regime necessary to
maintain the desired groundcover and
wildlife communities can only be
maintained in longleaf pine forests.
Treating longleaf pine like loblolly pine
will not achieve the desired results’’
(Longleaf Alliance 2015, unpaginated).
The tree species itself matters because,
over time, the fire necessary to maintain
the herbaceous groundcover that
supports this subspecies is only welltolerated by longleaf pine. Further,
Means (2005, p. 76, and references
therein) suggested that longleaf pine is
likely to be more important than other
southern pine species to animals using
stumpholes, because longleaf pine has a
more resinous heartwood, deeper
taproot, and lateral roots spreading out
50 ft (15.2 m) or more. Therefore, we
believe that the decline of the black
pinesnake is closely linked to the
decline of the characteristic longleaf
pine ecosystem.
Typically, if converted forests display
an open-canopied condition, it is only
temporary, and when the canopy closes
that habitat becomes unsuitable for both
black pinesnakes and their prey.
Occurrence of pinesnakes in these
forests should not be confused with
preference for those types of habitat. We
believe the pinesnakes in converted
forests are selecting for the best
available sub-optimal habitat, and
although they may be persisting
sporadically in the modified habitat,
once the canopy closes again they will
be forced to relocate because there will
be no herbaceous groundcover to
support prey populations on which the
subspecies depends for survival. This
has been supported through radiotelemetry data, which show that black
pinesnakes most often utilize opencanopied forests (Baxley and Qualls
2009, p. 289).
A long history of removal of
subsurface structure (e.g., stumps and
root channels) and conversion from
native forests to other uses has
eliminated both the subspecies and
suitable habitat; therefore, it is unlikely
that sites that have been intensively
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managed through multiple rotations or
converted to agriculture or urban areas
will support populations long term.
This is likely because the refugia habitat
has been removed, the surface can no
longer support prey species, road
density and thereby the threat posed by
road crossings increases, or simply
because the habitat (in any condition,
optimal or suboptimal) no longer
remains on a site.
Public Comments
General Issue 1: Captive Propagation
(17) Comment: A number of
commenters representing the captive
breeding community voiced concern
over the listing, especially with its
impact to pet owners, future sales of
black pinesnakes, work of researchers,
and zoological institutions. Some
specifically requested that captive-bred
animals be excluded from the listing or
exempted through a 4(d) rule to allow
unfettered continuation of captive
breeding, pet ownership, and trade.
Our Response: Black pinesnakes
acquired before the effective date of the
final listing of this subspecies (see
DATES, above) may be legally held and
bred in captivity as long as laws
regarding this activity within the State
in which they are held are not violated.
This would include snakes acquired
pre-listing by pet owners, researchers,
and zoological institutions. Future sale
of captive-bred black pinesnakes, born
from pre-listing acquired parents,
within their State of their origin would
be regulated by applicable laws of that
State. If individuals outside the snake’s
State of origin wish to purchase captivebred snakes, they would have to first
acquire a 10(a)(1)(A) Interstate
Commerce permit from the Service
(Web site: https://www.fws.gov/forms/3200-55.pdf). Information about the
intended purpose of purchasing a black
pinesnake is required because using
federally threatened species as pets is
not consistent with the purposes of the
Act, which is intended to support the
conservation of species and recovery of
wild populations. However, an animal
with threatened species status may be
legally kept in captivity if it is captivebred and used for educational and/or
breeding purposes consistent with the
aforementioned intent of the Act.
Through the permit process, we are able
to track and monitor the trade in
captive-bred listed species. For this
reason, we believe exemption for this
activity through a 4(d) rule would not be
appropriate, as it would not meet the
standard of providing for the
conservation of the subspecies.
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(18) Comment: Several commenters
stated that the Service should have
taken information relating to the large
captive-bred population into the
decision to list the subspecies. Several
other commenters stated listing was
unnecessary because captive-bred
animals could be released in the wild.
Our Response: While there have been
great advances by snake enthusiasts and
hobbyists in successful breeding
programs for pinesnakes, they are not
animals bred to be returned to wild
habitats. The Service views captive
propagation programs as a last recourse
for conserving species. The Act directs
the Service to focus on conserving the
ecosystems upon which endangered and
threatened species depend. Loss of
habitat is one of the primary threats to
this subspecies. Before captive animals
can be reintroduced, questions of
genetics, disease, and survival in the
wild must be evaluated, which is
generally done in a recovery setting
while considering all of the options
available for conservation. Captive
populations, even when they are
healthy and genetically diverse, will
likely not survive in the wild without
adequate habitat to support the
subspecies. As we begin the recovery
process, we will consider various
options for recovery of the subspecies,
which may include captive propagation.
If you have interest in participating,
please refer to the Available
Conservation Measures section, below,
for further guidance on participating in
this process.
General Issue 2: Forestry Management
Practices
(19) Comment: Several commenters
representing the forestry industry stated
that the Service misunderstands the
nature and ecology of modern pine
plantations and mistakenly thinks that
pine plantations are static ‘‘closed
canopies’’ and have ‘‘thick mid-stories.’’
They stated that pine plantations can
provide suitable black pinesnake
habitat, and across a broad, activelymanaged forest landscape, pine
plantations that are at different stages of
development ensure that suitable
habitat is available at all times. The
commenters referred to a 2013 National
Council for Air and Stream
Improvement (NCASI) report, which
states that of the almost 9 million acres
of planted pine forests owned by large
corporate forest landowners, two-thirds
of those acres were in some form of
open-canopied condition. The
commenters suggested that suitable
black pinesnake habitat should include
this type of matrix of forested stands
where the canopy cover is at various
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stages of being open and closed, as the
pinesnakes would always be able to find
areas where they could locate food,
shelter, and mates.
Our Response: We sincerely
appreciate the efforts of forest
landowners to provide habitat for a
variety of species and would like to
continue working with the forest
industry to further explore the benefits
of pine plantations. We believe there are
several potential issues with depending
on a matrix of pine plantations to
provide suitable habitat for the
subspecies long term; most notably, that
not all forests are managed in a way that
will protect the subspecies or its habitat.
At the time of the survey cited by the
commenter, two-thirds of those acres
were comprised of young trees that had
not grown large enough to close the
canopy, as many of those lands go
through cycles of having closed
canopies. For example, if a stand
becomes closed when the trees are 5 to
7 years old, and the first thinning is at
age 14 to 20, there is a period of 7 to
15 years when that stand is unsuitable
for pinesnakes.
The idea that a matrix of
intermittently open- and closedcanopied forest stands provides suitable
habitat for black pinesnakes relies on
several assumptions, such as that
suitable open habitat will always be
located in close proximity to areas
where the canopy is closing, that areas
of suitable habitat will be expansive
enough to support the large home ranges
of these snakes, and that snakes which
must relocate due to canopy closure will
be able to find adequate access to
relocated mates and prey in their shifted
home range. Both Lane et al. (2013, p.
231) and Hanberry et al. (2013, p. 57)
state that small mammal abundance
decreases in response to canopy closure,
often to the point of mammals
abandoning the site. Therefore, stands
such as these, although open for a part
of the time during the cycle of
management and harvesting activities,
are not stable habitats for pinesnakes
and do not contribute to the long-term
conservation of the subspecies. In
addition, if incompatible site
preparation activities remove subsurface
refugia from a site, it is unlikely
pinesnakes would have retreat sites
within these stands for several years
following harvest. This increases the
amount of time the subspecies has to
spend on the surface vulnerable to
predators.
(20) Comment: Commenters disagreed
with the Service’s characterization that
site preparation in a modern pine
plantation frequently involves
mechanical clearing of downed logs and
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stumps, greatly reducing the availability
of suitable refugia to black pinesnakes.
Our Response: It is likely that
activities during site preparation that
may greatly reduce the availability of
refugia, such as clearing of stumps and
other subsurface disturbance, may not
occur as commonly now as in previous
years, particularly on industrial forest
lands, and we have altered the language
in this final rule to reflect that.
However, because we received
comments from many others asking that
these mechanical site preparation
activities be exempted under the 4(d)
rule, we know that they do still occur.
These activities must be identified as
potential threats because one of the
most important features of the habitat
for black pinesnakes is the presence and
availability of naturally decayed or
burned-out pine stump holes in which
the snakes spend a large percentage of
their time. Although pinesnakes may
occasionally use debris piles and other
aboveground refugia, it is the
subterranean refugia (i.e., stump holes)
that are thought to be most important to
the subspecies. Those who manage to
the standards laid out under the 4(d)
rule will be exempted from ‘‘take’’ for
this subspecies.
General Issue 3: Private Land Issues
(21) Comment: Many public
commenters stated that there are
insufficient data to determine the effects
of the listing on landowners. They
expressed concern that the listing will
put an economic burden on private
landowners and restrict their activities.
Our Response: We understand that
there is confusion and concern about
the effect of listing the black pinesnake.
We acknowledge that some economic
impacts are a possible consequence of
listing a species under the Act.
However, the Act does not allow us to
consider such impacts when making a
listing decision. Rather, section
4(b)(1)(A) of the Act specifies that
listing determinations be made ‘‘solely
on the basis of the best scientific and
commercial data available.’’ Such
potential costs are therefore precluded
from consideration in association with a
listing determination. We are required
to consider economic impacts in the
decision to designate critical habitat,
and have conducted an economic
analysis for the proposed critical habitat
rule, which is available at https://
www.regulations.gov under Docket No.
FWS–R4–ES–2014–0065.
The Service believes that restrictions
alone are neither an effective nor a
desirable means for achieving the
conservation of listed species. We prefer
to work collaboratively with private
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landowners. We encourage any
landowners with a listed species present
on their properties and who think they
may conduct activities that negatively
impact that species to work with the
Service. We can help those landowners
determine whether a habitat
conservation plan (HCP) or safe harbor
agreement (SHA) may be appropriate for
their needs. These plans or agreements
provide for the conservation of the
listed species while providing the
landowner with a permit for incidental
take of the species during the course of
otherwise lawful activities.
Furthermore, our 4(d) rule for black
pinesnake, which includes exemptions
for certain forest management activities,
was developed with the intent of
maximizing timber management
flexibility to landowners while also
providing for the conservation of the
subspecies. Other voluntary programs,
such as the Service’s Partners for Fish
and Wildlife program and the Natural
Resources Conservation Service’s Farm
Bill programs, offer opportunities for
private landowners to enroll their lands
and receive cost-sharing and planning
assistance to reach their management
goals. The conservation and recovery of
endangered and threatened species, and
the ecosystems upon which they
depend, is the ultimate objective of the
Act, and the Service recognizes the vital
importance of voluntary, nonregulatory
conservation measures that provide
incentives for landowners in achieving
that objective. We are committed to
working with landowners to conserve
this subspecies and develop workable
solutions.
(22) Comment: Several commenters
stated that property rights granted by
the Constitution preclude the
government from preventing
landowners from managing property to
meet their goals. Landowners should be
able to make use of property at their
own free will as long as it falls within
the current county, State, and Federal
regulations.
Our Response: The agency
acknowledges the rights granted by the
Constitution. Prior court rulings address
this concern in more detail. However,
Section 9 of the Act makes it illegal for
anyone to ‘‘take’’ (defined as harass,
harm, pursue, hunt, shoot, wound, kill,
trap, capture, collect, or attempt any of
these actions) an endangered or
threatened species. However, the mere
promulgation of a regulation, such as
listing a species under the Act, does not
prevent landowners from managing
their property to meet their goals. As
discussed in our response to Comment
21, above, programs are available to
private landowners for managing habitat
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for listed species, as well as permits that
can be obtained to protect private
landowners from the take prohibition
when such taking is incidental to, and
not the purpose of, the carrying out of
an otherwise lawful activity. Private
landowners may contact their local
Service field office to obtain information
about these programs and permits.
(23) Comment: Private landowners
should be compensated if land use is
restricted on their property.
Our Response: There is no provision
in the Act to compensate landowners if
they have a federally listed species on
their property. However, as addressed in
our response to Comment 22, above, the
private landowners’ only obligation is
not to ‘‘take’’ the subspecies, and many
forestry management activities have
now been exempted from ‘‘take’’ (see
4(d) Rule, below). Also, as mentioned in
our response to Comment 21, above, we
have a number of programs to provide
management guidance and financial
assistance to private landowners
managing their lands to benefit the
recovery of listed species. A number of
other Federal agencies and individual
States provide financial assistance and
similar programs to interested
landowners.
(24) Comment: Several commenters
stated that no private lands or State
lands should be included in the listing.
Our Response: Under the Act, we
determine whether a species warrants
listing based on our assessment of the
five-factor threat analysis using the best
available scientific and commercial
information; land ownership is not a
consideration in that determination. The
action of listing a species provides
protection for the species wherever it
occurs. Protection for lands essential to
the conservation of a listed species is
covered under a designation of critical
habitat and is not a part of this listing
rule. A proposed rule to designate
critical habitat for the black pinesnake
was published separately on March 11,
2015 (80 FR 12846), and comments
regarding that proposal will be
addressed in the final critical habitat
determination and if appropriate, the
designation.
(25) Comment: Several commenters
noted that the continuous threat of
species listings and designations of
critical habitat will be a disincentive for
landowners to participate in longleaf
pine restoration efforts, may encourage
more landowners to grow a monoculture
of loblolly, or may encourage more
landowners to abandon forest
ownership and management.
Our Response: We acknowledge and
commend landowners for their land
stewardship and want to continue to
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encourage those management practices
that support the black pinesnake. Under
the Act, we have an obligation to assess
threats to species and, if appropriate,
provide for their protection. We have no
desire to limit private landowners’
ability to provide habitat for these
imperiled species; in fact, we have a
number of financial incentives through
our Private Lands program to help
private landowners manage their
properties for endangered and
threatened species. Continuation of
longleaf pine restoration efforts across
the subspecies’ range will be necessary
for conservation and recovery of this
subspecies and many other species. We
have reviewed all the comments we
received from forest stakeholders and
have used them to refine the 4(d) rule
and improve the balance of activities
that would promote conservation of the
black pinesnake and its habitat and not
unnecessarily burden private
landowners. Please see also our
responses to Comments 21 and 23,
above.
General Issue 4: Science
(26) Comment: Several commented
that the Service is using any scientific
and commercial data available and not
necessarily the best available. They
further stated that the Service did not
undertake efforts to fill the data gaps
concerning life history, habitat, and
status of the black pinesnake and have
put the burden on private landowners to
provide commercial and scientific data
rebutting the data advanced by the
Service.
Our Response: No new data were
provided by these commenters to
support this statement, although some
have offered different interpretations of
the existing data. We have used the best
scientific and commercial data available
to finalize our determination of
threatened status for the black
pinesnake. Furthermore, our analysis is
supported by our peer reviewers. Please
also see our responses to Comments 11
and 14, above.
(27) Comment: One commenter stated
that the sightings of black pinesnakes in
Alabama in the mid-1990s were
reported by individuals that were not
biologists or herpetologists, so these
records cannot be ‘‘scientific data.’’
Our Response: All Alabama records
for the black pinesnake are either from
the Alabama Natural Heritage Program’s
databases or from reputable
herpetologists. Heritage data are
automatically accepted by the Service as
valid due to the strict criteria for their
acceptance as scientific records.
Although the descriptive data (observer,
date, coordinates, condition of the
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animal) were not always recorded at a
consistent level of detail in some of the
older records, we scrutinized all
reputable location data to differentiate
between separate pinesnake
observations.
General Issue 5: Procedural/Legal Issues
(28) Comment: One commenter stated
that the Service should not use
information that is not peer-reviewed in
listing determinations.
Our Response: The Act and our
regulations do not require us to use only
peer-reviewed literature, but instead
they require us to use the ‘‘best
scientific data available’’ in a listing
decision. Our Policy on Information
Standards under the 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 (https://www.fws.gov/
informationquality/), provide criteria
and guidance, and establish procedures
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 list a species.
Primary or original information sources
are those that are closest to the subject
being studied, as opposed to those that
cite, comment on, or build upon
primary sources. In making our listing
decisions, we use information from
many different sources, including
articles in peer-reviewed journals,
scientific status surveys and studies
completed by qualified individuals,
other unpublished governmental and
nongovernmental reports, reports
prepared by industry, personal
communication about management or
other relevant topics, management plans
developed by Federal agencies or the
States, biological assessments, other
unpublished materials, experts’
opinions or personal knowledge, and
other sources. In finalizing this listing
determination, we have relied on
published articles, unpublished
research, habitat reports, digital data
publicly available on the Internet, and
the expert opinions of subject biologists.
That said, in accordance with our
peer review policy published on July 1,
1994 (59 FR 34270), we solicited peer
review from knowledgeable individuals
with scientific expertise that included
familiarity with this subspecies and
other pinesnakes, the geographic region
in which the subspecies occurs, and
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conservation biology principles.
Additionally, we requested comments
or information from other concerned
governmental agencies, the scientific
community, industry, and any other
interested parties concerning the
proposed rule. Comments and
information we received helped inform
this final rule.
(29) Comment: Several commenters
stated that because the proposed rule
arose from the Service’s settlement of a
lawsuit, the Service is indirectly
encouraged to list the subspecies, or
avoid any delays in listing, even though
such delays might result in a more
scientifically sound analysis of the
subspecies.
Our Response: Section 4 of the Act
and its implementing regulations (50
CFR part 424) set forth the procedures
for adding species to the Federal Lists
of Endangered and Threatened Wildlife
and Plants. We adhered to the
requirements of the Act to determine
whether a species warrants listing based
on our assessment of the five-factor
threats analysis using the best available
scientific and commercial data (see
Summary of Factors Affecting the
Species, below). We had already
determined, prior to the settlement
agreement, that the black pinesnake
warranted listing under the Act, but
listing had been precluded by the
necessity to commit limited funds and
staff to complete higher priority species
actions. The black pinesnake has been
included in our annual candidate
notices of review since 1999, during
which time scientific literature and data
have and continue to indicate that the
subspecies is detrimentally impacted by
ongoing threats, and we continued to
find that listing was warranted but
precluded. Thus, the listing process is
not arbitrary, but uses the best available
scientific and commercial data and peer
review to ensure sound science and
sound decision-making.
(30) Comment: Several commented
that the Service should not list another
species in Alabama because the Service
is unable to fulfill various mandated
obligations with respect to other species
already listed (i.e., timely recovery
plans, 5-year reviews)
Our Response: The listing of a species
is based on an analysis of threats
according to the Act (see Determination
section, below). The Act does not allow
the Service to delay listing of new
species until the Service has completed
certain actions, such as recovery plans
and 5-year reviews, for other previously
listed species.
(31) Comment: Several comments
stated that our proposed rule denied
potentially affected landowners due
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process in that all landowners were not
provided actual notice of this
rulemaking.
Our Response: In the proposed listing
rule published on October 7, 2014 (79
FR 60406), we requested that all
interested parties submit written
comments on the proposal by December
8, 2014. We reopened the comment
period on the listing proposal on March
11, 2015 (80 FR 12846) with our
publication of a proposed critical
habitat designation for the subspecies.
This second 60-day comment period
ended on May 11, 2015. During both
comment periods, we also contacted
appropriate Federal and State agencies,
scientific experts and organizations, and
other interested parties and invited
them to comment on the proposal.
Newspaper notices inviting general
public comment were published in the
Mobile Press Register and Hattiesburg
American on October 12, 2014, and
again on March 15, 2015. We also
presented several webinars on the
proposed listing and critical habitat
rules, and invited all stakeholders,
media, and congressional
representatives to participate and ask
any questions. The webinar information
was posted on our Web site along with
copies of the proposed listing rule, press
release, and a question/answer
document. As such, we have met our
obligations under the Act with regard to
notification concerning the proposed
listing.
General Issue 6: Other
(32) Comment: Several commented
that existing State regulations are
adequate to protect the black pinesnake.
A Federal listing would only duplicate
existing protection because it is illegal
to kill the snakes.
Our Response: Section 4(b)(1)(A) of
the Act requires us, in making a listing
determination, to take into account
those efforts being made by a State or
foreign nation, or any political
subdivision of the State or foreign
nation, to protect the species. Under
Factor D in the proposed and final rules
to list the subspecies, we provide an
analysis of the existing regulatory
mechanisms. In that analysis, we
consider relevant Federal, State, and
tribal laws and regulations. Regulatory
mechanisms may negate the need for
listing if we determine such
mechanisms address the threat to the
species such that listing is not, or no
longer, warranted. However, for the
black pinesnake, the best available
information supports our determination
that State regulations are not adequate
to remove the threats to the point that
listing is not warranted. Existing State
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regulations, while providing some
protection for individual snakes, do not
provide any protection for their habitat
(see Summary of Factors Affecting the
Species, Factor D discussion). Loss of
habitat has been a primary driver of the
subspecies’ decline. The Act provides
habitat protection for listed species both
through section 7 and the designation of
critical habitat. In addition, listing
provides resources under Federal
programs to facilitate restoration of
habitat, and helps bring public
awareness to the plight of the species.
(33) Comment: One commenter stated
that the Service should delay listing and
work with other State and Federal
agencies and with private landowners to
develop prescribed burning programs to
improve habitat and reverse the trend of
decline of the black pinesnake, as it is
largely due to the lack of fire in the
woods.
Our Response: We acknowledge that
the absence of prescribed burning has
contributed to the degradation of the
black pinesnake’s habitat and the
decline of the longleaf pine ecosystem.
The Service has made the determination
that the black pinesnake is likely to
become endangered in the foreseeable
future and that listing is warranted after
an analysis of the five threat factors
under the Act. There is no provision in
the Act that would allow us to decline
to list a species once that determination
has been made. Furthermore, as
discussed in our response to Comment
14, the criteria for delaying our listing
decision have not been met. As
discussed above in our response to
Comment 21, we have a number of
programs that provide assistance and
financial incentives to private
landowners to increase the use of fire as
a management tool, and we will
continue to actively pursue ways to
work with the public and partners to
reverse the decline of the black
pinesnake and its habitat.
(34) Comment: Several commenters
stated that endangered species
protection is more effectively achieved
by allowing forest landowners to
continue to manage their land under
voluntary best management practices or
by providing incentives to landowners
to initiate longleaf pine management.
Landowners and groups like Longleaf
Alliance and American Forest
Foundation encourage landowners to
return to longleaf pine and to manage
with fire, thinning, and harvesting, all of
which enhances black pinesnake
habitat. Regulations through listing
would serve to further deter cooperative
management between public agencies
and landowners.
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Our Response: We recognize that the
black pinesnake remains primarily on
lands where habitat management has
allowed them to survive, due in large
part to voluntary actions incorporating
good land-stewardship, and we want to
encourage management practices that
support the subspecies. However, the
Service, in conducting its assessment of
the status of the black pinesnake
according to standards in the Act, has
determined that certain forest
management practices have contributed
to the subspecies’ decline. In order to
protect the black pinesnake from
continued decline, and because we have
determined that it is likely to become
endangered in the foreseeable future, we
are listing the subspecies as threatened.
We do recognize the contributions of
forest landowners and have exempted
from take a number of forest
management activities under the 4(d)
rule. We maintain that the best chance
for conservation and, ultimately, the
recovery of the subspecies will require
the protections afforded by listing, as
well as voluntary conservation measures
undertaken by private landowners, with
support from the States and
conservation organizations. We, and
other Federal and State agencies, have a
number of existing programs that
provide incentives to private
landowners to initiate longleaf pine
management (e.g., Working Lands for
Wildlife, Conservation Reserve
Program). We will continue to work
with the public through these programs
to benefit the black pinesnake as we
have done for other longleaf pine
endemics such as the threatened gopher
tortoise and endangered red-cockaded
woodpecker (Picoides borealis) and
dusky gopher frog (Rana sevosa).
(35) Comment: Several commenters
asserted that because the proposed rule
was opposed by the ADCNR and
Alabama Forestry Association (AFA),
which have expertise with the
subspecies and Alabama forests, that the
Service should not ignore ADCNR’s
admonitions to gather further
information before proceeding with a
listing decision.
Our Response: We acknowledge and
value the expertise of the ADCNR and
the AFA. We fully respect the position
of the State, even when we do not
entirely agree on their interpretation of
the data. The Service is required to
make a determination based on the best
available scientific information, and
after reviewing the comments presented
by ADCNR and AFA, as well as all other
comments we received, we believe that
the information warrants a final listing
determination as threatened for the
black pinesnake. ADCNR stated that it
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supported a 4(d) rule that provides for
open canopy conditions; abundant
ground cover; and refugia habitat such
as stumps, snags, and woody debris, and
we believe our 4(d) rule in this final
listing determination is consistent with
that recommendation.
(36) Comment: One commenter
questioned why the black pinesnake
needed Federal listing as it occurs in the
range of other listed species.
Our Response: The current range of
the black pinesnake overlaps with
several other longleaf pine endemics
that are federally listed including the
gopher tortoise, red-cockaded
woodpecker, and dusky gopher frog.
The black pinesnake likely receives
benefit from longleaf pine restoration
efforts and other recovery actions
implemented for these listed species, as
some threats to the black pinesnake are
similar to other listed species in its
range. However, there are aspects of
black pinesnake habitat that are unique
to them, specifically their use of and
need for belowground habitat, such as
stump holes, which are not required by
these other listed species.
Any ongoing conservation actions and
the manner in which they are helping to
ameliorate threats to the subspecies
were considered in our final listing
determination for the black pinesnake
(see ‘‘Conservation Efforts to Reduce
Habitat Destruction, Modification, or
Curtailment of Its Range’’ under Factor
A, below). Our determination is guided
by the Act and its implementing
regulations, considering the five listing
factors and using the best available
scientific and commercial information.
Our analysis supported our
determination of threatened status for
this subspecies.
(37) Comment: Several commenters
questioned why the subspecies should
be listed if the most important areas are
already being protected and managed.
Another commenter stated that the vast
acres of public lands that exist within
the range of the black pinesnake should
be enough to ensure the subspecies
continues to persist.
Our Response: Conservation of the
black pinesnake will require
collaboration between Federal, State,
and local agencies wherever the
subspecies occurs. About half of the
known black pinesnake populations
occur primarily on public lands that are
typically managed to protect longleaf
pine habitat, and management efforts
are ongoing on these public lands that
benefit the black pinesnake; however,
these efforts do not always meet all of
the ecological needs of the subspecies
(see Comment 36, above). We consider
the populations occupying the De Soto
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NF in Mississippi as representing the
core of the subspecies’ range, and these
public lands are very important for the
conservation and recovery of the black
pinesnake, but Federal lands alone are
insufficient to conserve the subspecies.
These areas represent only a small
fraction of the current range of the
subspecies. Populations on the
periphery of the range have high
conservation value as well in terms of
maintaining the subspecies’ genetic
integrity, representing future
conservation strongholds, providing
future opportunities for population
connectivity and augmentation, and
contributing to important ecosystem
functions in the ecological communities
where they occur (see also
‘‘Conservation Efforts to Reduce Habitat
Destruction, Modification, or
Curtailment of Its Range’’ under Factor
A, below).
(38) Comment: One individual
commented that we should exempt
activities conducted with cost-share
funding sources under the 4(d) rule.
This would include sources such as the
Service’s Partners for Fish and Wildlife
Program (PFW) and the Natural
Resource Conservation Service’s
Conservation Reserve Program (CRP),
Environmental Quality Incentives
Program (EQIP), and Wildlife Habitat
Incentives Program (WHIP).
Our Response: The primary
requirement for activities to qualify for
exemption under section 4(d) of the Act
is that they must be necessary and
advisable to provide for the
conservation of the species. These
programs play an incredibly valuable
role in conservation by providing
assistance to private landowners to
manage their lands. However, there is
also a high level of variability among
cost-share programs in terms of their
primary conservation and management
objectives, which makes it difficult to
determine definitively which programs
would always be beneficial to black
pinesnakes. Therefore, we chose to
concentrate on the forestry and
management activities beneficial to
pinesnakes for exemption, instead of the
individual programs.
Summary of Changes From the
Proposed Rule
Based upon our review of the public
comments, comments from other
Federal and State agencies, peer review
comments, and other new relevant
information that has become available
since the publication of the proposal,
we reevaluated our proposed rule and
made changes as appropriate. During
the comment periods, the Service
received clarifications and additional
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information on habitat, threats, the
subspecies’ biology, and timber
management practices, which have been
incorporated into this final rule. We
have removed our discussion relating to
the development of a candidate
conservation agreement (CCA) for the
black pinesnake between the Service
and the U.S. Forest Service, U.S.
Department of Defense, the Mississippi
Army National Guard (MSARNG), and
the Mississippi Department of Wildlife,
Fisheries, and Parks because it was
never finalized. However, the
conservation measures outlined in the
draft CCA were incorporated into the
MSARNG’s 2014 updated integrated
natural resources management plan (see
‘‘Conservation Efforts to Reduce Habitat
Destruction, Modification, or
Curtailment of Its Range’’ under
Summary of Factors Affecting the
Species). We have also made the
following significant changes to the 4(d)
rule:
• We have provided clarification to
take exemptions regarding prescribed
burning and invasive species and
vegetation control.
• We have removed the take
exemption for ‘‘restoration along
riparian areas and stream buffers’’ as
there is no need to exempt these
activities because these areas are not
considered habitat for the subspecies,
and, therefore, activities associated with
their restoration are unlikely to result in
take or promote conservation of this
subspecies. Any observations of black
pinesnakes in riparian areas are
incidental to individuals moving
between areas of suitable habitat,
typically uplands.
• We have broadened the scope of
timber management activities exempted
from take to include all forest
management activities that maintain
lands in a forested condition, except for
conversion of longleaf-pine-dominated
forests to other cover types or land uses,
or those activities causing significant
subsurface disturbance to the
underground refugia for the black
pinesnake.
• We have removed the requirement
that silvicultural treatments exempted
from take be performed under a
management plan or prescription
toward target conditions for optimal
longleaf pine forest. Our revised 4(d)
rule allows for the management of other
open-canopied pine species.
We have modified the list of actions
that may result in take under section 9
in light of modifications made to the
exemptions in the 4(d) rule, with the
focus on protecting this subspecies’
underground refugia.
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Summary of Factors Affecting the
Species
Section 4 of the Act (16 U.S.C. 1533),
and its implementing regulations at 50
CFR part 424, set forth the procedures
for adding species to the Federal Lists
of Endangered and Threatened Wildlife
and Plants. Under section 4(a)(1) of the
Act, we may list a species based on (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. Listing
actions may be warranted based on any
of the above threat factors, singly or in
combination.
Factor A: The Present or Threatened
Destruction, Modification, or
Curtailment of Its Habitat or Range
Fire-maintained southern pine
ecosystems, particularly the longleaf
pine ecosystem, have declined
dramatically across the South. Current
estimates show that the longleaf pine
forest type has declined 96 percent from
the historical estimate of 88 million ac
(35.6 million ha) to approximately 3.3
million ac (1.3 million ha) (Oswalt et al.
2012, p. 13). During the latter half of the
20th century, Louisiana, Alabama, and
Mississippi lost between 60 and 90
percent of their longleaf acreage (Outcalt
and Sheffield 1996, pp. 1–10). Recently,
longleaf acreage has been trending
upward in parts of the Southeast
through restoration efforts; however, the
footprint of the longleaf pine ecosystem
across its historical range continues to
contract, primarily due to conversion to
loblolly pine (Oswalt et al. 2015, p.
504). Additionally, increases in longleaf
pine acreage across the Southeast from
longleaf restoration efforts do not
overlap completely with the range of the
black pinesnake (Ware 2014, pers.
comm.); recent outlooks for the southern
Gulf region still predict large percentage
losses in longleaf pine in many of the
areas currently occupied by the
subspecies (Klepzig et al. 2014, p. 53).
Southern forest futures models predict
declines of forest land area between 2
and 10 percent in the next 50 years,
with loss of private forest land to
urbanization accounting for most of
these declines (Wear and Greis 2013, p.
78).
Natural longleaf pine forests, which
are characterized by a high, open
canopy and shallow litter and duff
layers, have evolved to be maintained
by frequent, low-intensity fires, which
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in turn restrict a woody midstory, and
promote the flowering and seed
production of fire-stimulated
groundcover plants (Oswalt et al. 2012,
pp. 2–3). Although there are records of
black pinesnakes occurring in opencanopied forests with overstories of
loblolly, slash, and other pines, they are
historically associated with the natural
longleaf pine forests, which have the
abundant herbaceous groundcover
(Duran 1998a, p. 11; Baxley et al. 2011,
p. 161; Smith 2011, pp. 86, 100)
necessary to support the black
pinesnake’s prey base (Miller and Miller
2005, p. 202).
The current and historical range of the
black pinesnake is highly correlated
with the current and historical range of
these natural longleaf pine forests,
leading to the hypothesis that black
pinesnake populations, once contiguous
throughout these forests in Alabama,
Mississippi, and southeast Louisiana,
have declined proportionately with the
ecosystem (Duran and Givens 2001, pp.
2–3). In the range of the black
pinesnake, longleaf pine is now largely
confined to isolated patches on private
land and larger parcels on public lands.
Black pinesnake habitat has been
eliminated through land use
conversions, primarily conversion to
agriculture and densely stocked pine
plantations and development of urban
areas. Most of the remaining patches of
longleaf pine on private land within the
range of the snake are fragmented,
degraded, second-growth forests (see
discussion under Factor E: Other
Natural or Manmade Factors Affecting
Its Continued Existence).
Conversion of longleaf pine forests to
densely stocked pine plantations often
reduces the quality and suitability of a
site for black pinesnakes. Duran (1998b,
p. 31) found that black pinesnakes
prefer the typical characteristics of the
longleaf pine ecosystem, such as open
canopies, reduced mid-stories, and
dense herbaceous understories. He also
found that these snakes are frequently
underground in rotting pine stumps.
Some pine plantations have closed
canopies and thick mid-stories with
limited herbaceous understories during
portions of the timber rotation. Site
preparation for planting of pine
plantations sometimes involves clearing
of downed logs and stumps, thereby
interfering with the natural
development of stump holes and root
channels through decay or from
burning, and greatly reducing the
availability of suitable refugia (Rudolph
et al. 2007, p. 563). This could have
negative consequences if the pinesnakes
are no longer able to locate a previous
year’s refugium, and are subject to
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overexposure from thermal extremes or
elevated predation risk while the snakes
are above ground searching for suitable
shelter. Black pinesnakes have persisted
in those areas of pine forest, composed
of both longleaf pine and other pine
species, where the forest structure
approximates that which occurred
historically in longleaf pine forests, as
described above. However, conservation
of black pinesnakes requires the longterm availability of these forest structure
habitat features, not just in the
landscape, but within the subspecies’
activity range. If they are required to
move from area to area with the change
in habitat conditions, as would likely
occur on a pine plantation, their fitness
and long-term survival will be in
question (Yager et al. 2006, pp. 34–36).
When a site is converted to
agriculture, all vegetation is cleared and
underground refugia are destroyed
during soil disking and compaction.
Forest management strategies, such as
fire suppression (see discussion under
Factor E: Other Natural or Manmade
Factors Affecting Its Continued
Existence), increased stocking densities,
densely planting off-site pine species
(i.e., slash and loblolly pines), bedding,
and removal of whole trees during
harvesting (including downed trees and
stumps), all contribute to degradation of
habitat attributes preferred by black
pinesnakes. It is likely that the
diminishing presence and distribution
of decaying stump holes and their
associated rotting root channels may be
a feature that limits the abundance of
black pinesnakes within their range
(Baxley 2007, p. 44).
Baxley et al. (2011, pp. 162–163)
compared habitat at recent (post-1987)
and historical (pre-1987) black
pinesnake localities. She found that
sites recently occupied by black
pinesnakes were characterized by
significantly less canopy cover; lower
basal area; less midstory cover; greater
percentages of grass, bare soil, and forbs
in the groundcover; less shrubs and
litter in the groundcover; and a more
recent burn history than currently
unoccupied, historical sites. At the
landscape level, black pinesnakes
selected upland pine forests that lacked
cultivated crops, pasture and hay fields,
developed areas, and roads (Baxley et
al. 2011, p. 154). Thus, areas historically
occupied by black pinesnakes are
becoming unsuitable at both the
landscape and microhabitat (small-scale
habitat component) levels (Baxley et al.
2011, p. 164).
Degradation and loss of longleaf pine
habitat (e.g., sandy, well-drained soils
with an open-canopied overstory of
longleaf pine, a reduced shrub layer,
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60481
and a dense herbaceous ground cover)
within the range of the black pinesnake
is continuing. The coastal counties of
southern Mississippi and Mobile
County, Alabama, are being developed
at a rapid rate due to increases in the
human population. While forecast
models show that Federal forest land
will remain relatively unchanged
overall in the next few decades,
projected losses in forest land are
highest in the South, with declines in
private forest land from urbanization
accounting for most of the loss (Wear
2011, p. 31).
Habitat fragmentation within the
longleaf pine ecosystem threatens the
continued existence of all black
pinesnake populations, particularly
those on private lands. This is
frequently the result of urban
development, conversion of longleaf
pine sites to densely stocked pine
plantations, and the associated increases
in number of roads. When patches of
available habitat become separated
beyond the dispersal range of a species,
populations are more sensitive to
genetic, demographic, and
environmental variability, and
extinction becomes possible. This is
likely a primary cause for the
extirpation of the black pinesnake in
Louisiana and the subspecies’
contracted range in Alabama and
Mississippi (Duran and Givens 2001,
pp. 22–26).
Private landowners hold more than 86
percent of forests in the South and
produce nearly all of the forest
investment and timber harvesting in the
region (Wear and Greis 2013, p. 103).
Forecasts indicate a loss of 11 to 23
million ac (4.5 million to 9.3 million ha)
of private forest land in the South by
2060. This loss, combined with
expanding urbanization in many areas
and ongoing splitting of land ownership
as estates are divided, will result in
increased fragmentation of remaining
forest holdings (Wear and Greis 2013, p.
119). This assessment of continued
future fragmentation throughout the
range of the black pinesnake, coupled
with the assumption that large home
range size increases extinction
vulnerability, emphasizes the
importance of conserving and managing
large tracts of contiguous habitat to
protect the black pinesnake (Baxley
2007, p. 65). This is in agreement with
other studies of large, wide-ranging
snake species sensitive to landscape
fragmentation (Hoss et al. 2010;
Breininger et al. 2012). When factors
influencing the home range sizes of the
threatened eastern indigo snake
(Drymarchon corais couperi) were
analyzed, the results suggested that
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maintaining populations of this
subspecies will require large
conservation areas with minimum
fragmentation (Breininger et al. 2011,
pp. 484–490).
Impacts from urbanization are not
consistent throughout the Southeast,
and some parts of Mississippi and
Alabama may actually experience
human population declines (Wear and
Greis 2013, p. 21); however, the most
recent assessment still predicts
increased change in urban land use in
the next 45 years in most of the counties
occupied by the black pinesnake
(Klepzig et al. 2014, p. 23). Urbanization
appears to have reduced historical black
pinesnake populations in Mobile
County by approximately 50 percent
(Duran 1998a, p. 17), to the point where
pinesnakes are thought to be extirpated
from some areas directly surrounding
Mobile (Nelson and Bailey 2004, p. 44).
Substantial population declines were
noted throughout the 1970s and 1980s
(Mount 1986, p. 35). Jennings and Fritts
(1983, p. 8) reported that, in the 1980s,
the black pinesnake was one of the most
frequently encountered snakes on the
Environmental Studies Center (Center)
in Mobile County. Urban development
has now engulfed lands adjacent to the
Center, and black pinesnakes are
thought to likely have been extirpated
from the property (Duran 1998a, p. 10).
Black pinesnakes were commonly seen
in the 1970s on the campus of the
University of South Alabama in western
Mobile; however, there have not been
any observations in at least the past 25
years (Nelson 2014, p. 1).
Populations on the periphery of the
range have conservation value in terms
of maintaining the subspecies’ genetic
integrity (i.e., maintaining the existing
genetic diversity still inherent in
populations that have not interbred in
hundreds or thousands of years),
providing future opportunities for
population connectivity and
augmentation, and contributing to
important ecosystem functions (such as
maintaining rodent populations) in the
ecological communities where they
occur (Steen and Barrett 2015, p. 1).
Many of the populations on the edge of
the range are smaller, which increases
their susceptibility to localized
extinction from catastrophic and
stochastic events, subsequently causing
further restriction of the subspecies’
range. Additionally, the footprint of
longleaf pine in the Southeast has gone
through substantial contraction recently
(Oswalt et al. 2015, p. 504), creating
even higher susceptibility for these
peripheral populations. Although the
black pinesnake was thought to be fairly
common in parts of south Alabama as
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recently as 30 years ago, we believe
many populations have disappeared or
drastically declined due to continued
habitat loss and fragmentation. For
instance, several sites where snakes
have been captured historically are now
developed and no longer contain
habitat.
Conservation Efforts To Reduce Habitat
Destruction, Modification, or
Curtailment of Its Range
When considering whether or not to
list a species under the Act, we must
identify existing conservation efforts
and their effect on the species.
The largest known populations of
black pinesnakes (5 of 11) occur in the
De Soto NF, which is considered the
core of the subspecies’ known range.
The black pinesnake likely receives
benefit from longleaf pine restoration
efforts, including prescribed fire,
implemented by the U.S. Forest Service
in accordance with its Forest Plan, in
habitats for the federally listed gopher
tortoise, dusky gopher frog, and redcockaded woodpecker. (USDA 2014, pp.
60–65). Within the recently revised
Forest Plan, black pinesnakes are
included on lists of species dependent
on fire to maintain habitat, species
sensitive to recreational traffic, species
that are stump and stump-hole
associates, and species sensitive to soil
disturbance (USDA 2014, Appendix G–
85, G–92, G–100). The management
strategies described within the Forest
Plan provide general guidance that
states project areas should be reviewed
to determine if such species do occur
and if so to develop mitigation measures
to ensure sustainability of the species,
such as, in general, not removing dead
and downed logs or other woody debris
from rare communities.
The MSARNG updated its INRMP in
2014, and outlined conservation
measures to be implemented
specifically for the black pinesnake on
lands owned by the DoD and the State
of Mississippi on Camp Shelby. Planned
conservation measures include:
Supporting research and surveys on the
subspecies; habitat management
specifically targeting the black
pinesnake, such as retention of pine
stumps and prescribed burning; and
educational programs for users of the
training center to minimize negative
impacts of vehicular mortality on
wildlife (MSARNG 2014, pp. 93–94).
However, the INRMP addresses
integrative management and
conservation measures only on the
lands owned and managed by DoD and
the State of Mississippi (15,195 ac
(6,149 ha)), which make up
approximately 10 percent of the total
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acreage of Camp Shelby (132,195 ac
(53,497 ha)). Most of this land is leased
to DoD and owned by the Forest
Service, which manages the land in
accordance with its Forest Plan (see
explanation above). Only 5,735 ac
(2,321 ha) of the acreage covered by the
INRMP provides habitat for the black
pinesnake.
Longleaf pine habitat restoration
projects have been conducted on
selected private lands within the range
historically occupied by the black
pinesnake and likely provide benefits to
the subspecies (U.S. Fish and Wildlife
Service 2012, pp. 12–13). Additionally,
restoration projects have been
conducted on wildlife management
areas (WMAs) (Marion County WMA in
Mississippi; Scotch, Fred T. Stimpson,
and the area formerly classified as the
Boykin WMAs in Alabama) occupied by
or within the range of the black
pinesnake, and on three gopher tortoise
relocation areas in Mobile County,
Alabama. The gopher tortoise relocation
areas are managed for the opencanopied, upland longleaf pine habitat
used by both gopher tortoises and black
pinesnakes, and there have been recent
records of black pinesnakes on the
properties; however, the managed areas
are all less than 700 ac (283 ha) and
primarily surrounded by urban areas
with incompatible habitat. Therefore,
we do not believe they would provide
sufficient area to support a black
pinesnake population long term.
Furthermore, although there is
beneficial habitat management
occurring on some of these WMAs and
on the tortoise relocation areas, these
efforts do not currently target the
retention or restoration of black
pinesnake habitat, which would include
management targeted to maintain larger,
unfragmented tracts of open longleaf
habitat. Stump removal still occurs
within the range of the subspecies and
is particularly problematic as it removes
refugia habitat for the subspecies. We
will continue to work with our State
and private partners to encourage the
incorporation of these practices, where
appropriate.
Summary of Factor A
In summary, the loss and degradation
of habitat was a significant historical
threat, and remains a current threat, to
the black pinesnake. The historical loss
of habitat within the longleaf pine
ecosystem occupied by black
pinesnakes occurred primarily due to
timber harvest and subsequent
conversion of pine forests to agriculture,
residential development, and
intensively managed pine plantations.
This loss of habitat has slowed
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considerably in recent years, in part due
to efforts to restore the longleaf pine
ecosystem in the Southeast. However,
habitat loss is continuing today due to
due to incompatible forestry practices,
conversion to agriculture, and
urbanization, which result in increasing
habitat fragmentation (see discussion
under Factor E: Other Natural or
Manmade Factors Affecting Its
Continued Existence). While the use of
prescribed fire for habitat management
and more compatible site preparation
has seen increased emphasis in recent
years, expanded urbanization,
fragmentation, and regulatory
constraints will continue to restrict the
use of fire and cause further habitat
degradation (Wear and Greis 2013, p.
509). Conservation efforts are
implemented or planned that should
help maintain black pinesnake habitat
on Camp Shelby and the De Soto NF;
however, these areas represent a small
fraction of the current range of the
subspecies.
Impacts from urbanization are not
consistent throughout the Southeast,
and some parts of Mississippi and
Alabama may actually experience
human population declines (Wear and
Greis 2013, p. 21); however, the most
recent assessment still predicts
increased change in urban land use in
the next 45 years in most of the counties
occupied by the subspecies (Klepzig et
al. 2014, p. 23). Smaller populations on
the edge of the range are more
susceptible to localized extinction from
catastrophic and stochastic events.
Additionally, the footprint of longleaf
pine in the Southeast has gone through
substantial contraction recently (Oswalt
et al. 2015, p. 504), creating even higher
susceptibility for these peripheral
populations. Thus, habitat loss and
continuing degradation of the black
pinesnake’s habitat remains a significant
threat to this subspecies’ continued
existence.
Factor B: Overutilization for
Commercial, Recreational, Scientific, or
Educational Purposes
Although there is some indication
that collection for the pet trade may
have been a problem (Duran 1998a, p.
15), and that localized accounts of a
thriving pet trade for pinesnakes have
been reported previously around
Mobile, Alabama (Vandeventer and
Young 1989, p. 34), direct take of black
pinesnakes for recreational, scientific, or
educational purposes is not currently
considered to be a significant threat.
This overutilization would be almost
exclusively to meet the demand from
snake enthusiasts and hobbyists;
however, the pet trade is currently
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saturated with captive-bred black
pinesnakes (Vandeventer in litt. 2014).
The need for the collection of wild
specimens is thought to have declined
dramatically from the levels previously
observed in the 1960s and 1970s
(Vandeventer in litt. 2014). Though
concern has been expressed that Federal
listing may increase the demand for
wild-caught animals (McNabb in litt.
2014), based on current information we
have determined that overutilization for
commercial, recreational, scientific, or
educational purposes is not a threat to
the black pinesnake at this time.
60483
2012, pp. 810–811). However, the
severity and magnitude of predation by
these species are unknown.
In summary, disease is not considered
to be a threat to the black pinesnake at
this time. However, predation by fire
ants and urban predators may represent
a threat to the black pinesnake.
Factor D: The Inadequacy of Existing
Regulatory Mechanisms
In Mississippi, the black pinesnake is
classified as endangered by the
Mississippi Department of Wildlife,
Fisheries and Parks (Mississippi
Museum of Natural Science 2001, p. 1).
Factor C: Disease or Predation
In Alabama, the pine snake (Pituophis
melanoleucus spp.) is protected as a
Snake fungal disease (SFD) is an
emerging disease in certain populations non-game animal (Alabama Department
of Conservation and Natural Resources
of wild snakes, though specific
pathological criteria for the disease have 2014, p. 1), and in the 2015 draft of the
Alabama Comprehensive Wildlife
not yet been established. The disease
Conservation Strategy, the black
has been linked to mortality events for
pinesnake is identified as a Priority 1,
other species, but has not yet been
Species of Greatest Conservation Need
documented in Pituophis or in any of
(ADCNR 2015, p. 297). In Louisiana, the
the States within the range of the black
black pinesnake is considered
pinesnake. While it is suspected of
extirpated (Louisiana Department of
threatening small, isolated populations
Wildlife and Fisheries (LDWF) 2014, p.
of susceptible snake species, we
2; Anthony in litt. 2015); however,
currently have no evidence it is
affecting the black pinesnake. We know Louisiana Revised Statutes for Wildlife
and Fisheries were recently amended to
of no other diseases that are affecting
the subspecies, and, therefore, disease is prohibit killing black pinesnakes or
removing them from the wild without a
not presently considered a threat to the
permit from the LDWF (Louisiana
black pinesnake.
Administrative Code, 2014, p. 186),
Red imported fire ants (Solenopsis
should they be found in the State again.
invicta), an invasive species, have been
Both Mississippi and Alabama have
implicated in trap mortalities of black
regulations that restrict collecting,
pinesnakes during field studies (Baxley
killing, or selling of the subspecies, but
2007, p. 17). They are also potential
do not have regulations addressing
predators of black pinesnake eggs,
especially in disturbed areas (Todd et al. habitat loss, which has been the primary
2008, p. 544), and have been
cause of decline of this subspecies.
Where the subspecies co-occurs with
documented predating snake eggs under
species already listed under the Act, the
experimental conditions (Diffie et al.
black pinesnake likely receives ancillary
2010, p. 294). In 2010 and 2011,
benefits from the protective measures
trapping for black pinesnakes was
for the already listed species, including
conducted in several areas that were
the gopher tortoise, dusky gopher frog,
expected to support the subspecies; no
and red-cockaded woodpecker.
black pinesnakes were found, but high
The largest known expanses of
densities of fire ants were reported
suitable habitat for the black pinesnake
(Smith 2011, pp. 44–45). However, the
are in the De Soto NF in Mississippi.
severity and magnitude of effects, as
well as the long-term effects, of fire ants The black pinesnake’s habitat is
afforded some protection under the
on black pinesnake populations are
National Forest Management Act
currently unknown.
(NFMA; 16 U.S.C. 1600 et seq.) where
Other potential predators of
it occurs on lands managed by the
pinesnakes include red-tailed hawks,
Forest Service that are occupied by
raccoons, skunks, red foxes, and feral
cats (Ernst and Ernst 2003, p. 284; Yager federally listed species such as the
gopher tortoise and red-cockaded
et al. 2006, p. 34). Lyman et al. (2007,
woodpecker. Forest Service rules and
p. 39) reported an attack on a black
guidelines implementing NFMA require
pinesnake by a stray domestic dog,
land management plans that include
which resulted in the snake’s death.
provisions supporting recovery of
Several of these mammalian predators
endangered and threatened species. As
are anthropogenically enhanced (urban
a result, land managers on the De Soto
predators); that is, their numbers often
NF have conducted management
increase with human development
actions, such as prescribed burning and
adjacent to natural areas (Fischer et al.
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longleaf pine restoration, which benefit
gopher tortoises, red-cockaded
woodpeckers, and black pinesnakes.
Within the recently revised Forest Plan,
black pinesnakes are included on lists of
species dependent on fire to maintain
habitat, species sensitive to recreational
traffic, species that are stump and
stump-hole associates, and species
sensitive to soil disturbance (USDA
2014, Appendix G–85, G–92, G–100).
The management strategies described
within the Forest Plan provide general
guidance that states project areas should
be reviewed to determine if such species
do occur and if so to develop mitigation
measures to ensure sustainability of the
subspecies, such as, in general, not
removing dead and downed logs or
other woody debris from rare
communities.
As discussed under Factor A above,
the MSARNG recently updated its
INRMP for Camp Shelby, and outlined
conservation measures to be
implemented specifically for the black
pinesnake on 5,735 ac (2,321 ha) of
potential pinesnake habitat owned or
managed by DoD. These measures will
benefit black pinesnake populations,
and include a monitoring protocol to
help evaluate the population and
appropriate guidelines for maintaining
suitable habitat and microhabitats.
In summary, outside of the National
Forest and the area covered by the
INRMP, existing regulatory mechanisms
provide little protection from the
primary threat of habitat loss for the
black pinesnake. Longleaf restoration
activities on Forest Service lands in
Mississippi conducted for other
federally listed species do improve
habitat for black pinesnake populations
located in those areas, but could be
improved by ensuring the protection of
the belowground refugia critical to the
snake. We will continue to work with
the Forest Service to design and
implement a more aggressive strategy
for protecting and monitoring the black
pinesnake.
Factor E: Other Natural or Manmade
Factors Affecting Its Continued
Existence
Fire is the preferred management
technique to maintain the longleaf pine
ecosystem, and fire suppression has
been considered a primary reason for
the degradation of the remaining
longleaf pine forest. It is a contributing
factor in reducing the quality and
quantity of available habitat for the
black pinesnake. According to Wear and
Greis (2013, p. 509), southern forests are
likely to see increasing challenges to
prescribed burning in the future as landuse changes involving fuels
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management, increased urban interface,
and revised safety and health
regulations will continue to constrain
prescribed fire efforts. Some of these
constraints could be in the form of
reduced fire intervals or reductions in
average area burned per fire event
(strategies often used in management of
pine plantations), which may not
provide adequate fire intensity or
frequency to suppress the overgrown
understory and mid-story conditions
that black pinesnakes are known to
avoid (Duran 1998b, p. 32). During a
2005 study using radio-telemetry to
track black pinesnakes, a prescribed
burn bisected the home range of one of
the study animals. The snake spent
significantly more time in the recently
burned area than in the area that had
not been burned in several years (Smith
2005, 5 pp.).
Roads surrounding and traversing the
remaining black pinesnake habitat pose
a direct threat to the subspecies. Dodd
et al. (2004, p. 619) determined that
roads fragment habitat for wildlife.
Population viability analyses have
shown that road mortality estimates in
some snake species have greatly
increased extinction probabilities (Row
et al. 2007, p. 117). In an assessment of
data from radio-tracked eastern indigo
snakes, it was found that adult snakes
have relatively high survival in
conservation core areas, but greatly
reduced survival in edges of these areas
along highways, and in suburbs
(Breininger et al. 2012, p. 361). Clark et
al. (2010, pp. 1059–1069) studied the
impacts of roads on population
structure and connectivity in timber
rattlesnakes (Crotalus horridus). They
found that roads interrupted dispersal
and negatively affected genetic diversity
and gene flow among populations of
this large snake (Clark et al. 2010, p.
1059). In a Texas snake study, an
observed deficit of snake captures in
traps near roads suggests that a
substantial proportion of the total
number of snakes may have been
eliminated due to road-related mortality
and that populations of large snakes
may be depressed by 50 percent or more
due to this mortality (Rudolph et al.
1999, p. 130).
Black pinesnakes frequent the sandy
hilltops and ridges where roads are most
frequently sited. Even on public lands,
roads are a threat. During Duran’s
(1998b pp. 6, 34) study on Camp Shelby,
Mississippi, 17 percent of the black
pinesnakes with transmitters were
killed while attempting to cross a road.
In a larger study currently being
conducted on Camp Shelby, 14 (38
percent) of the 37 pinesnakes found on
the road between 2004 to 2012 were
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found dead, and these 14 individuals
represent about 13 percent of all the
pinesnakes found on Camp Shelby
during that 8-year span (Lyman et al.
2012, p. 42). The majority of road
crossings occurred between the last 2
weeks of May and the first 2 weeks of
June (Lyman et al. 2011, p. 48), a time
period when black pinesnakes are
known to breed (Lyman et al. 2012, p.
42). In the study conducted by Baxley
(2007, p. 83) on De Soto NF, 2 of the 8
snakes monitored with radiotransmitters were found dead on paved
roads. This is an especially important
issue on these public lands because the
best remaining black pinesnake
populations are concentrated there. It
suggests that population declines may
be due in part to adult mortality in
excess of annual recruitment (Baxley
and Qualls 2009, p. 290). Additional
support for the threat of fragmentation
by roads is presented by Steen et al.
(2012, p. 1092) who suggested that their
modelling study of habitat loss and
degradation in snakes provided
evidence that fragmentation by roads
may be an impediment to maintaining
viable populations of pinesnakes.
Exotic plant species degrade habitat
for wildlife. In the Southeast, longleaf
pine forest associations are susceptible
to invasion by the exotic cogongrass
(Imperata cylindrica), which may
rapidly encroach into areas undergoing
habitat restoration, and is very difficult
to eradicate once it has become
established, requiring aggressive control
with herbicides (Yager et al. 2010, pp.
229–230). Cogongrass displaces native
grasses, greatly reducing foraging areas,
and forms thick mats so dense that
ground-dwelling wildlife has difficulty
traversing them (DeBerry and Pashley
2008, p. 74).
In many parts of Louisiana,
Mississippi, and Alabama, there is a
lack of understanding of the importance
of snakes to a healthy ecosystem. Snakes
are often killed intentionally when they
are observed, and dead pinesnakes have
been found that were shot (Duran
1998b, p. 34). Lyman et al. (2008, p. 34)
and Duran (1998b, p. 34) both
documented finding dead black
pinesnakes that were intentionally run
over, as evidenced by vehicle tracks that
went off the road in vicinity of dead
snakes. In addition, in one of these
instances (Lyman et al. 2008, p. 34),
footprints were observed going from the
vicinity of the truck to the snake’s head,
which had been intentionally crushed.
As development pressures mount on
remaining black pinesnake habitat,
human-snake interactions are expected
to increase, which in turn is expected to
increase mortality, especially of adults.
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Questionnaires have shown that snakes
are more likely to be intentionally run
over than any other animal (Langley et
al. 1989, p. 43), and black pinesnakes
represent a large target as they attempt
to cross roads, which may increase the
frequency of deliberate killing (Whitaker
and Shine 2000, p. 121).
On many construction project sites,
erosion control blankets are used to
lessen impacts from weathering, secure
newly modified surfaces, and maintain
water quality and ecosystem health.
However, this polypropylene mesh
netting (also often utilized for bird
exclusion) has been documented as
being an entanglement hazard for many
snake species, causing lacerations and
sometimes mortality (Stuart et al. 2001,
pp. 162–163; Barton and Kinkead 2005,
p. 34A; Kapfer and Paloski 2011, p. 1).
This netting often takes years to
decompose, creating a long-term hazard
to snakes, even when the material has
been discarded (Stuart et al. 2001, p.
163). Although no known instance of
injury or death from this netting has
been documented for black pinesnakes,
it has been demonstrated to have
negative impacts on other terrestrial
snake species of all sizes and thus poses
a potential threat to the black pinesnake
when used in its habitat.
Duran (1998b, p. 36) suggested that
reproductive rates of wild black
pinesnakes may be low, based on failure
to detect either nests or mating
behaviors as observed during his
studies. This observation has not been
corroborated in the literature for other
Pituophis species; however, if low
reproductive rates were common, it
would inhibit conservation and
recovery.
Random environmental events may
also play a part in the decline of the
black pinesnake. Two black pinesnakes
were found dead on the De Soto NF
during drought conditions of midsummer and may have succumbed due
to drought-related stress (Baxley 2007,
p.41).
In summary, a variety of natural or
manmade factors currently threaten the
black pinesnake. Fire suppression has
been considered a primary reason for
degradation of the longleaf pine
ecosystem; however, invasive species
such as cogongrass also greatly reduce
the habitat quality for the black
pinesnake. Isolation of populations
beyond the dispersal range of the
subspecies is a serious threat due to the
fragmentation of available habitat. The
high percentage of radio-tracked black
pinesnakes killed while trying to cross
roads supports our conclusion that this
is a serious threat, while human
attitudes towards snakes represent
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another source of mortality. Stochastic
threats such as drought have the
potential to threaten black pinesnake
populations, especially considering the
possibility of more drastic thermal
extremes due to climate change, and the
suspected low reproductive rate of the
subspecies could exacerbate other
threats and limit population viability.
Overall, the threats under Factor E may
act in combination with threats listed
above under Factors A through D and
increase their severity.
Determination
We have carefully assessed the best
scientific and commercial information
available regarding the past, present,
and future threats to the black
pinesnake. The black pinesnake is
considered extirpated from Louisiana
and three counties in Mississippi.
Threats to the remaining black
pinesnake populations exist primarily
from two of the five threat factors
(Factors A and E); however, predation
by fire ants and urban predators (Factor
C), and limitations of existing laws and
regulations (Factor D) also pose lowermagnitude threats to the subspecies.
Potential threats such as snake fungal
disease (Factor C) and entanglement in
erosion control blankets (Factor E)
represent documented sources of
mortality in other snake species, but
there is no evidence yet that these have
caused mortality in black pinesnakes.
Threats also occur in combination,
resulting in synergistically greater
effects. Threats of habitat loss and
degradation (Factor A) represent
primary threats to the black pinesnake.
While habitat restoration efforts are
beginning to reverse the decline of the
longleaf pine forest in parts of the
southeastern United States, most of the
black pinesnake’s original habitat has
been either converted from forests to
other uses or is highly fragmented.
Today, the longleaf pine ecosystem
occupies less than 4 percent of its
historical range, and the black
pinesnake has been tied directly to this
ecosystem. Much of the habitat outside
of the De Soto National Forest in
Mississippi (the core of the range) has
become highly fragmented, and
populations on these lands appear to be
small and isolated on islands of suitable
longleaf pine habitat (Duran 1998a, p.
17; Barbour 2009, pp. 6–13).
A habitat suitability study of all
historical sites for the black pinesnake
estimated that this subspecies likely no
longer occurs in an estimated 60 percent
of historical population segments. It is
estimated that only 11 populations of
black pinesnakes are extant today, of
which about a third are located on
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60485
isolated patches of longleaf pine habitat
that continue to be degraded due to fire
suppression and fragmentation (Factor
E), incompatible forestry practices, and
urbanization.
Threats under Factor E include fire
suppression; roads; invasive plant
species, such as cogongrass; random
environmental events, such as droughts;
and intentional killing by humans. Fire
suppression and invasive plants result
in habitat degradation. Roads surround
and traverse the upland ridges, which
are primary habitat for the black
pinesnake, and these roads cause further
fragmentation of the remaining habitat.
In addition, roads also increase the rate
of human-snake interactions, which
likely result in the death of individual
snakes. Vehicles travelling these roads
cause the deaths of a substantial number
of snakes. These threats in combination
lead to an increased chance of local
extirpations by making populations
more sensitive to genetic, demographic,
and environmental variability. This is
especially true of populations on the
periphery of the range, where smaller
populations are considerably more
vulnerable to the documented
contraction of the longleaf pine
ecosystem, and where stochastic events
are more likely to cause further
restrictions of the range of the black
pinesnake.
Habitat loss has been extensive
throughout the black pinesnake’s range,
and the remaining habitat has been
fragmented into primarily small patches
with barriers to dispersal between them,
creating reproductively isolated
individuals or populations. The
inadequacy of laws and regulations
protecting against habitat loss
contributes to increases in urbanization
and further fragmentation. Urbanization
results in an increased density of roads,
intensifying the potential for direct
mortality of adult snakes and reductions
in population sizes. Reductions in
habitat quality and quantity have
synergistic effects that may eventually
cause localized extirpations. Threats to
the black pinesnake, working
individually or in combination, are
ongoing and significant and have
resulted in curtailment of the range of
the subspecies.
The Act defines an endangered
species as any species that is ‘‘in danger
of extinction throughout all or a
significant portion of its range’’ and a
threatened species as any species ‘‘that
is likely to become endangered
throughout all or a significant portion of
its range within the foreseeable future.’’
We find that the black pinesnake meets
the definition of a threatened species
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based on the immediacy, severity, and
scope of the threats described above.
We find that endangered status is not
appropriate for the black pinesnake
because, while we found the threats to
the subspecies to be significant and
rangewide, we believe it is unlikely that
the threats will act on the subspecies in
a way that place the subspecies in
danger of extinction throughout all or a
significant portion of its range. About
half of the remaining black pinesnake
populations occur primarily on public
lands that are at least partially managed
to protect remaining longleaf pine
habitat. Management efforts on those
lands specifically targeting listed
longleaf pine specialists, such as the
gopher tortoise and red-cockaded
woodpecker, should benefit the black
pinesnake as well, especially if
measures are employed to protect
belowground refugia. Additionally, the
5,735 ac (2,321 ha) of suitable pinesnake
habitat covered by the Camp Shelby
INRMP are under a conservation plan
whose objectives include specifically
protecting black pinesnake
microhabitats and increasing awareness
of the human impacts to rare wildlife.
Thus, although there is a general decline
in the overall range of the subspecies
and its available habitat, range
contraction is not severe enough to
indicate imminent extinction because of
these existing efforts on public land and
other ongoing restoration activities.
Therefore, on the basis of the best
available scientific and commercial
information, we are listing the black
pinesnake as threatened in accordance
with sections 3(20) and 4(a)(1) of the
Act.
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Significant Portion of the Range
Under the Act and our implementing
regulations, a species may warrant
listing if it is endangered or threatened
throughout all or a significant portion of
its range. Because we have determined
that black pinesnake is threatened
throughout all of its range, no portion of
its range can be ‘‘significant’’ for
purposes of the definitions of
‘‘endangered species’’ and ‘‘threatened
species.’’ See the Final Policy on
Interpretation of the Phrase ‘‘Significant
Portion of Its Range’’ in the Endangered
Species Act’s Definitions of
‘‘Endangered Species’’ and ‘‘Threatened
Species’’ (79 FR 37578; July 1, 2014).
Available Conservation Measures
Other conservation measures
provided to species listed as endangered
or threatened under the Act include
recognition, recovery actions,
requirements for Federal protection, and
prohibitions against certain practices.
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Recognition through listing results in
public awareness, and conservation by
Federal, State, Tribal, and local
agencies; private organizations; and
individuals. The Act encourages
cooperation with the States and requires
that recovery actions be carried out for
all 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 requires 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, selfsustaining, 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 identifies site-specific
management actions that set a trigger for
review of the five factors that control
whether a species remains endangered
or may be downlisted or delisted, 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 will be available on
our Web site (https://www.fws.gov/
endangered), or from our Mississippi
Ecological Services Field Office (see FOR
FURTHER INFORMATION CONTACT).
Implementation of recovery actions
generally requires the participation of a
broad range of partners, including other
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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.
Following publication of this final
listing rule, 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 States of
Alabama, Louisiana, and Mississippi
would be eligible for Federal funds to
implement management actions that
promote the protection or recovery of
the black pinesnake. Information on our
grant programs that are available to aid
species recovery can be found at
https://www.fws.gov/grants.
Please let us know if you are
interested in participating in recovery
efforts for the black pinesnake.
Additionally, we invite you to submit
any new information on this subspecies
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 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. 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
subspecies’ habitat that may require
conference or consultation or both as
described in the preceding paragraph
include management and any other
landscape-altering activities on Federal
lands administered by the Forest
Service or on National Wildlife Refuges
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managed by the Service; issuance of
section 404 Clean Water Act (33 U.S.C.
1251 et seq.) permits by the U.S. Army
Corps of Engineers; construction and
maintenance of gas pipeline and power
line rights-of-way by the Federal Energy
Regulatory Commission; construction
and maintenance of roads or highways
by the Federal Highway Administration;
land management practices supported
by programs administered by the U.S.
Department of Agriculture;
Environmental Protection Agency
pesticide registration; and projects
funded through Federal loan programs,
which may include, but are not limited
to, roads and bridges, utilities,
recreation sites, and other forms of
development.
4(d) Rule
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 wildlife. We
may also prohibit by regulation with
respect to threatened wildlife any act
prohibited by section 9(a)(1) of the Act
for endangered wildlife. For the black
pinesnake, the Service has developed a
4(d) rule that is tailored to the specific
threats and conservation needs of this
subspecies. Exercising this discretion,
the Service has developed a 4(d) rule
containing all the general prohibitions
and exceptions to those prohibitions;
these are found at 50 CFR 17.31 and 50
CFR 17.32. However, as a means to
promote conservation efforts on behalf
of the black pinesnake, we are finalizing
a 4(d) rule for this subspecies that
modifies the standard protection for
threatened wildlife found at 50 CFR
17.31. In the case of a 4(d) rule, the
general regulations (50 CFR 17.31 and
17.71) applying most prohibitions under
section 9 of the Act to threatened
species do not apply to that species, and
the 4(d) rule contains the prohibitions
necessary and advisable to conserve that
species.
As discussed in the Summary of
Factors Affecting the Species section of
this rule, the primary threat to this
subspecies is the continuing loss and
degradation of the open pine forests
habitat (e.g., the longleaf pine
ecosystem), which requires active
management to ensure appropriate
habitat conditions are present.
Therefore, for the black pinesnake, the
Service has determined that exemptions
authorized under section 4(d) of the Act
are appropriate to promote conservation
of this subspecies. Foremost in the
degradation of this habitat is the decline
or absence of prescribed fire, as fire is
the primary source of historical
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disturbance and maintenance, reduces
mid-story and understory hardwoods,
and promotes abundant native
herbaceous groundcover in the natural
communities of the longleaf pine
ecosystem where the black pinesnake
normally occurs. We recognize that
forest management activities such as
thinning, reforestation and afforestation,
mid-story and understory vegetation
management, and final harvest
(particularly in stands with undesirable
conditions) are often needed to maintain
and/or restore forests to the conditions
that are preferable to black pinesnakes.
The primary habitat features that require
protection in this ecosystem are the
burned-out or naturally decayed pine
stump holes that are heavily utilized by
black pinesnakes, in association with
the development of the herbaceous
plant community that provides habitat
and forage for prey. Therefore, activities
causing significant subsurface
disturbance (like those listed below
under 3(b)) will not be exempted as
these actions are detrimental to
maintenance and development of stump
holes and root channels critical to this
subspecies. Another factor affecting the
integrity of this ecosystem is the
infestation of invasive plants,
particularly cogongrass. Activities such
as prescribed burning and invasive
weed control, as well as forest
management activities associated with
restoring and maintaining the natural
habitat to meet the needs of the black
pinesnake, positively affect pinesnake
habitat and provide an overall
conservation benefit to the subspecies.
Provisions of the 4(d) Rule
See Summary of Changes to the
Proposed Rule, above, for changes to the
4(d) rule based on information we
received during the public comment
period.
This 4(d) rule exempts from the
general prohibitions at 50 CFR 17.31
take incidental to the following
activities when conducted within
habitats currently or historically
occupied by the black pinesnake:
(1) Prescribed burning, including all
fire break establishment and
maintenance actions, as well as actions
taken to control wildfires.
(2) Herbicide application for invasive
plant species control, site-preparation,
and mid-story and understory woody
vegetation control. All exempted
herbicide applications must be
conducted in a manner consistent with
Federal law, including Environmental
Protection Agency label restrictions;
applicable State laws; and herbicide
application guidelines as prescribed by
herbicide manufacturers.
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(3) All forest management activities
that maintain lands in a forested
condition, except for: (a) Conversion of
longleaf-pine-dominated forests (>51
percent longleaf in the overstory) to
other forest cover types or land uses; or
(b) those activities causing significant
subsurface disturbance, including, but
not limited to, shearing, wind-rowing,
stumping, disking (except during fire
break creation or maintenance), rootraking, and bedding.
We believe these actions and
activities, while they may have some
minimal level of harm or temporary
disturbance to the black pinesnake, are
not expected to adversely affect the
subspecies’ conservation and recovery
efforts. They will have a net beneficial
effect on the subspecies. When
practicable and to the extent possible,
the Service encourages managers to
conduct the activities listed above in a
manner to: Maintain suitable black
pinesnake habitat in large tracts;
minimize ground and subsurface
disturbance; promote a diverse,
abundant native herbaceous
groundcover; and allow for the natural
decay or burning of pine stumps. It
should be noted that harvest of longleaf
pine (and other species) is included in
the exemption, as long as the longleaf
pine forests are not converted to other
forest cover types. Should landowners
undertake activities in these areas (e.g.,
such as converting from longleaf to
loblolly) that are not covered by the
exemptions above and are likely to
result in take (as described below), they
would need to consult with the Service
to find ways to minimize impacts to the
subspecies before proceeding with the
activity.
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. With regard to threatened
wildlife, a permit may be issued for the
following purposes: For scientific
purposes, to enhance the propagation or
survival of the subspecies, for economic
hardship, for zoological exhibition, for
educational purposes, and for incidental
take in connection with otherwise
lawful activities. 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
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the effect of a final listing on proposed
and ongoing activities within the range
of a listed species. Based on the best
available information, the following
activities may potentially result in a
violation of section 9 the Act; this list
is not comprehensive:
(1) Unauthorized collecting, handling,
possessing, selling, delivering, carrying,
or transporting of the black pinesnake,
including import or export 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) Introduction of nonnative species
that compete with or prey upon the
black pinesnake.
(3) Unauthorized destruction or
modification of occupied black
pinesnake habitat (e.g., stumping, root
raking, bedding) that results in
significant subsurface disturbance or the
destruction of pine stump holes and
their associated root systems used as
refugia by the black pinesnake, or that
impairs in other ways the subspecies’
essential behaviors such as breeding,
feeding, or sheltering; and conversion of
occupied longleaf-pine-dominated
forests (>51 percent of longleaf in the
overstory) to other forest cover types or
land uses.
(4) Unauthorized use of insecticides
and rodenticides that could impact
small mammal prey populations,
through either unintended or direct
impacts within habitat occupied by
black pinesnakes.
(5) Actions, intentional or otherwise,
that would result in the destruction of
eggs or cause mortality or injury to
hatchling, juvenile, or adult black
pinesnakes.
Questions regarding whether specific
activities would constitute a violation of
section 9 of the Act should be directed
to the Mississippi Ecological Services
Field Office (see FOR FURTHER
INFORMATION CONTACT). We encourage
any landowner who is concerned about
potential take of the pinesnake on their
property from an action that is not
covered under the 4(d) rule to consult
with the Service on conservation
measures that would avoid take or the
process for obtaining an incidental take
permit under a safe harbor agreement or
habitat conservation plan.
Required Determinations
National Environmental Policy Act (42
U.S.C. 4321 et seq.)
We have determined that
environmental assessments and
environmental impact statements, as
defined under the authority of the
National Environmental Policy Act,
need not be prepared in connection
with listing a species as an endangered
or threatened species under the
Endangered Species Act. We published
a notice outlining our reasons for this
determination in the Federal Register
on October 25, 1983 (48 FR 49244).
Government-to-Government
Relationship With Tribes
In accordance with the President’s
memorandum of April 29, 1994
(Government-to-Government Relations
with Native American Tribal
Governments; 59 FR 22951), Executive
Order 13175 (Consultation and
Coordination With Indian Tribal
Governments), and the Department of
the Interior’s manual at 512 DM 2, we
readily acknowledge our responsibility
to communicate meaningfully with
recognized Federal Tribes on a
government-to-government basis. In
accordance with Secretarial Order 3206
of June 5, 1997 (American Indian Tribal
Rights, Federal-Tribal Trust
Responsibilities, and the Endangered
Species Act), we readily acknowledge
our responsibilities to work directly
with tribes in developing programs for
healthy ecosystems, to acknowledge that
Species
Common name
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*
REPTILES
*
Pinesnake, black ..............
*
VerDate Sep<11>2014
Scientific name
*
*
*
*
Pituophis melanoleucus
lodingi.
*
14:56 Oct 05, 2015
U.S.A. (AL,
LA, MS).
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A complete list of references cited in
this rulemaking is available on the
Internet at https://www.regulations.gov
and upon request from the Mississippi
Ecological Services Field Office (see FOR
FURTHER INFORMATION CONTACT).
Authors
The primary authors of this final rule
are the staff members of the Mississippi
Ecological Services Field Office.
List of Subjects in 50 CFR Part 17
Endangered and threatened species,
Exports, Imports, Reporting and
recordkeeping requirements,
Transportation.
Regulation Promulgation
Accordingly, we amend part 17,
subchapter B of chapter I, title 50 of the
Code of Federal Regulations, as follows:
PART 17—ENDANGERED AND
THREATENED WILDLIFE AND PLANTS
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.
2. Amend § 17.11(h) by adding an
entry for ‘‘Pinesnake, black’’ in
alphabetical order under REPTILES to
the List of Endangered and Threatened
Wildlife to read as follows:
■
§ 17.11 Endangered and threatened
wildlife.
*
*
*
(h) * * *
*
When listed
*
*
Entire ...............
*
Frm 00022
References Cited
Status
*
*
Jkt 238001
Vertebrate
population
where
endangered or
threatened
Historic
range
tribal lands are not subject to the same
controls as Federal public lands, to
remain sensitive to Indian culture, and
to make information available to tribes.
There are no tribal lands located within
the range of the subspecies.
*
861
T
*
Sfmt 4700
Critical
habitat
*
*
*
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*
06OCR3
Special
rules
*
*
NA
17.42(h)
*
Federal Register / Vol. 80, No. 193 / Tuesday, October 6, 2015 / Rules and Regulations
3. Amend § 17.42 by adding paragraph
(h) to read as follows:
■
§ 17.42
Special rules—reptiles.
*
*
*
*
(h) Black pinesnake (Pituophis
melanoleucus lodingi).
(1) Prohibitions. Except as noted in
paragraph (h)(2) of this section, all
prohibitions and provisions of §§ 17.31
and 17.32 apply to the black pinesnake.
(2) Exemptions from prohibitions.
Incidental take of the black pinesnake
will not be considered a violation of
section 9 of the Act if the take results
from:
(i) Prescribed burning, including all
fire break establishment and
rmajette on DSK7SPTVN1PROD with RULES
*
VerDate Sep<11>2014
14:56 Oct 05, 2015
Jkt 238001
maintenance actions, as well as actions
taken to control wildfires.
(ii) Herbicide application for invasive
plant species control, site-preparation,
and mid-story and understory woody
vegetation control. All exempted
herbicide applications must be
conducted in a manner consistent with
Federal law, including Environmental
Protection Agency label restrictions;
applicable State laws; and herbicide
application guidelines as prescribed by
herbicide manufacturers.
(iii) All forest management activities
that maintain lands in a forested
condition, except for:
(A) Conversion of longleaf-pinedominated forests (>51 percent longleaf
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60489
in the overstory) to other forest cover
types or land uses; and
(B) Those activities causing
significant subsurface disturbance,
including, but not limited to, shearing,
wind-rowing, stumping, disking (except
during fire break creation or
maintenance), root-raking, and bedding.
*
*
*
*
*
Dated: September 28, 2015.
Stephen Guertin,
Acting Director, U.S. Fish and Wildlife
Service.
[FR Doc. 2015–25270 Filed 10–5–15; 8:45 am]
BILLING CODE 4333–15–P
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[Federal Register Volume 80, Number 193 (Tuesday, October 6, 2015)]
[Rules and Regulations]
[Pages 60467-60489]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2015-25270]
[[Page 60467]]
Vol. 80
Tuesday,
No. 193
October 6, 2015
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 Black Pinesnake With 4(d) Rule; Final Rule
Federal Register / Vol. 80, No. 193 / Tuesday, October 6, 2015 /
Rules and Regulations
[[Page 60468]]
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DEPARTMENT OF THE INTERIOR
Fish and Wildlife Service
50 CFR Part 17
[Docket No. FWS-R4-ES-2014-0046; 4500030113]
RIN 1018-BA03
Endangered and Threatened Wildlife and Plants; Threatened Species
Status for Black Pinesnake With 4(d) Rule
AGENCY: Fish and Wildlife Service, Interior.
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: We, the U.S. Fish and Wildlife Service (Service), determine
threatened species status under the Endangered Species Act of 1973
(Act), as amended, for the black pinesnake (Pituophis melanoleucus
lodingi), a reptile subspecies from Alabama, Louisiana, and
Mississippi. The effect of this rule is to add this subspecies to the
List of Endangered and Threatened Wildlife. We are also adopting a rule
under the authority of section 4(d) of the Act (a ``4(d) rule'') to
provide for the conservation of the black pinesnake.
DATES: This rule is effective November 5, 2015.
ADDRESSES: This final rule is available on the Internet at https://www.regulations.gov and https://www.fws.gov/mississippiES/. Comments and
materials we received, as well as supporting documentation we used in
preparing this rule, are available for public inspection at https://www.regulations.gov. All of the comments, materials, and documentation
that we considered in this rulemaking are available by appointment,
during normal business hours at: U.S. Fish and Wildlife Service,
Mississippi Ecological Services Field Office, 6578 Dogwood View
Parkway, Jackson, MS 39213; by telephone at 601-965-4900; or by
facsimile at 601-965-4340.
FOR FURTHER INFORMATION CONTACT: Stephen Ricks, Field Supervisor, U.S.
Fish and Wildlife Service, Mississippi Ecological Services Field
Office, 6578 Dogwood Parkway, Jackson, MS 39213; by telephone 601-965-
4900; or by facsimile 601-965-4340. Persons who use a
telecommunications device for the deaf (TDD) may call the Federal
Information Relay Service (FIRS) at 800-877-8339.
SUPPLEMENTARY INFORMATION:
Executive Summary
Why we need to publish a rule. Under the Act, a species may warrant
protection through listing if we determine that it is endangered or
threatened throughout all or a significant portion of its range.
Listing a species as an endangered or threatened species can only be
completed by issuing a rule.
This rule lists the black pinesnake (Pituophis melanoleucus
lodingi) as a threatened species. It includes provisions published
under the authority of section 4(d) of the Act that are necessary and
advisable to provide for the conservation of the black pinesnake.
The basis for our action. Under the Act, we may 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 black pinesnake is
threatened based on four of these five factors (Factors A, C, D, and
E), specifically the past and continuing loss, degradation, and
fragmentation of habitat in association with silviculture,
urbanization, and fire suppression; road mortality; and the intentional
killing of snakes by individuals.
Peer review and public comment. We sought comments from independent
specialists to ensure that our determination is based on scientifically
sound data, assumptions, and analyses. We also considered all comments
and information we received during two public comment periods.
Previous Federal Action
Federal actions for the black pinesnake prior to publication of the
proposed listing rule are outlined in that rule, which was published on
October 7, 2014 (79 FR 60406). Publication of the proposed rule opened
a 60-day comment period, which closed on December 8, 2014. On March 11,
2015, we published a proposed critical habitat designation for the
black pinesnake (80 FR 12846) and invited the public to comment on the
critical habitat proposal; the entire October 7, 2014, proposed listing
rule; and the draft economic analysis of the proposed critical habitat
designation. This second 60-day comment period ended on May 11, 2015.
We will finalize the designation of critical habitat for the black
pinesnake at a later date.
Background
Species Information
Species Description and Taxonomy
Pinesnakes (genus Pituophis) are large, non-venomous, oviparous
(egg-laying) constricting snakes with keeled scales and
disproportionately small heads (Conant and Collins 1991, pp. 201-202).
Their snouts are pointed. Black pinesnakes are distinguished from other
pinesnakes by being dark brown to black both on the upper and lower
surfaces of their bodies. There is considerable individual variation in
adult coloration (Vandeventer and Young 1989, p. 34), and some adults
have russet-brown snouts. They may also have white scales on their
throat and ventral surface (Conant and Collins 1991, p. 203). In
addition, there may also be a vague pattern of blotches on the end of
the body approaching the tail. Adult black pinesnakes range from 48 to
76 inches (in) (122 to 193 centimeters (cm)) long (Conant and Collins
1991, p. 203; Mount 1975, p. 226). Young black pinesnakes often have a
blotched pattern, typical of other pinesnakes, which darkens with age.
The subspecies' defensive posture when disturbed is particularly
interesting; when threatened, it throws itself into a coil, vibrates
its tail rapidly, strikes repeatedly, and utters a series of loud
hisses (Ernest and Barbour 1989, p. 102).
Pinesnakes (Pituophis melanoleucus) are members of the Class
Reptilia, Order Squamata, Suborder Serpentes, and Family Colubridae.
There are three recognized subspecies of P. melanoleucus distributed
across the eastern United States (Crother 2012, p. 66; Rodriguez-Robles
and De Jesus-Escobar 2000, p. 35): The northern pinesnake (P. m.
melanoleucus); black pinesnake (P. m. lodingi); and Florida pinesnake
(P. m. mugitus). The black pinesnake was originally described by
Blanchard (1924, pp. 531-532), and is geographically isolated from all
other pinesnakes. However, there is evidence that the black pinesnake
was in contact with other pinesnakes in the past. A form intermediate
between P. m. lodingi and P. m. mugitus occurs in Baldwin and Escambia
Counties, Alabama, and Escambia County, Florida, and may display
morphological characteristics of both subspecies (Conant 1956, pp. 10-
11). These snakes are separated from populations of the black pinesnake
by the extensive Tensas-Mobile River Delta and the Alabama River, and
it is unlikely that there is currently gene flow between pinesnakes
across the Delta (Duran 1998a, p. 13; Hart 2002, p.
[[Page 60469]]
23). A study on the genetic structure of the three subspecies of P.
melanoleucus (Getz et al. 2012, p. 2) showed evidence of mixed
ancestry, and supported the current subspecies designations and the
determination that all three are genetically distinct groups. Evidence
suggests a possible historical intergradation between P. m. lodingi and
P. ruthveni (Louisiana pinesnake), but their current ranges are no
longer in contact and intergradation does not presently occur (Crain
and Cliburn 1971, p. 496).
Habitat
Black pinesnakes are endemic to the longleaf pine ecosystem that
once covered the southeastern United States. Optimal habitat for these
snakes consists of sandy, well-drained soils with an open-canopied
overstory of longleaf pine, a reduced shrub layer, and a dense
herbaceous ground cover (Duran 1998a, p. 2). Duran (1998b, pp. 1-32)
conducted a radio-telemetry study of the black pinesnake that provided
data on habitat use. Snakes in this study were usually located on well-
drained, sandy-loam soils on hilltops, on ridges, and toward the tops
of slopes in areas dominated by longleaf pine. With other habitat types
readily available on the landscape, we can infer that these upland
habitats were preferred by black pinesnakes. They were rarely found in
riparian areas, hardwood forests, or closed canopy conditions. From
radio-telemetry studies, black pinesnakes were located below ground 53
to 70 percent of the time (Duran 1998a, p. 12; Yager et al. 2005, p.
27; Baxley and Qualls 2009, p. 288). These locations were usually in
the trunks or root channels of rotting pine stumps.
During two additional radiotelemetry studies, individual pinesnakes
were observed in riparian areas, hardwood forests, and pine plantations
periodically, but the majority of their time was still spent in intact
upland longleaf pine habitat. While they used multiple habitat types
periodically, they repeatedly returned to core areas in the longleaf
pine uplands and used the same pine stump and associated rotted-out
root system from year to year, indicating considerable site fidelity
(Yager, et al. 2006, pp. 34-36; Baxley 2007, p. 40). Several radio-
tracked juvenile snakes were observed using mole or other small mammal
burrows rather than the bigger stump holes used by adult snakes (Lyman
et al. 2007, pp. 39-41).
Pinesnakes have shown some seasonal movement trends of emerging
from overwintering sites in February, moving to an active area from
March until September, and then moving back to their overwintering
areas (Yager et al. 2006, pp. 34-36). The various areas utilized
throughout the year may not have significantly different habitat
characteristics, but these movement patterns illustrate that black
pinesnakes may need access to larger, unfragmented tracts of habitat to
accommodate fairly large home ranges while minimizing interactions with
humans.
Life History
Black pinesnakes are active during the day but only rarely at
night. As evidenced by their pointed snout and enlarged rostral scale
(the scale at the tip of their snout), they are accomplished burrowers
capable of tunneling in loose soil, potentially for digging nests or
excavating rodents for food (Ernst and Barbour 1989, pp. 100-101).
Black pinesnakes are known to consume a variety of food, including
nestling rabbits (Sylvilagus aquaticus), bobwhite quail (Colinus
virginianus) and their eggs, and eastern kingbirds (Tyrannus tyrannus)
(Vandeventer and Young 1989, p. 34; Yager et al. 2005, p. 28); however,
rodents represent the most common type of prey. The majority of
documented prey items are hispid cotton rats (Sigmodon hispidus),
various species of mice (Peromyscus spp.), and, to a lesser extent,
eastern fox squirrels (Sciurus niger) (Rudolph et al. 2002, p. 59;
Yager et al. 2005, p. 28). During field studies of black pinesnakes in
Mississippi, hispid cotton rats and cotton mice (Peromyscus gossypinus)
were the most frequently trapped small mammals within black pinesnake
home ranges (Duran and Givens 2001, p. 4; Baxley 2007, p. 29). These
results suggest that these two species of mammals represent essential
components of the snake's diet (Duran and Givens 2001, p. 4).
Duran and Givens (2001, p. 4) estimated the average size of
individual black pinesnake home ranges (Minimum Convex Polygons (MCPs))
at Camp Shelby, Mississippi, to be 117.4 acres (ac) (47.5 hectares
(ha)) using data obtained during their radio-telemetry study. A more
recent study conducted at Camp Shelby, a National Guard training
facility operating under a special use permit on the De Soto National
Forest (NF) in Forrest, George, and Perry Counties, Mississippi,
provided home range estimates from 135 to 385 ac (55 to 156 ha) (Lee
2014a, p. 1). Additional studies from the De Soto NF and other areas of
Mississippi have documented somewhat higher MCP home range estimates,
from 225 to 979 ac (91 to 396 ha) (Baxley and Qualls 2009, p. 287). The
smaller home range sizes from Camp Shelby may be a reflection of the
higher habitat quality at the site (Zappalorti in litt. 2015), as the
snakes may not have to travel great distances to meet their ecological
needs. A modeling study of movement patterns in bullsnakes (Pituophis
catenifer sayi) revealed that home range sizes increased as a function
of the amount of avoided habitat, such as agricultural fields (Kapfer
et al. 2010, p. 15). As snakes are forced to increase the search radius
to locate preferred habitat, their home range invariably increases.
The dynamic nature of individual movement patterns supports the
premise that black pinesnake habitat should be maintained in large
unfragmented parcels to sustain survival of a population. In the late
1980s, a gopher tortoise preserve of approximately 2,000 ac (809 ha)
was created at Camp Shelby. This preserve, which has limited habitat
fragmentation and has been specifically managed with prescribed burning
and habitat restoration to support the recovery of the gopher tortoise,
is centrally located within a much larger managed area (over 100,000 ac
(40,469 ha)) that provides habitat for one of the largest known
populations of black pinesnakes in the subspecies' range (Lee 2014a, p.
1).
No population and habitat viability analyses have been conducted
for the black pinesnake due primarily to a lack of essential life-
history and demographic data, such as estimates of growth and
reproductive rates, as is the case for many snake species (Dorcas and
Willson 2009, p. 36; Willson et al. 2011, pp. 42-43). However, radio-
tracking studies have shown that a reserve area should include an
unconstrained (unfragmented) activity area large enough to accommodate
the long-distance movements that have been reported for the subspecies
(Baxley and Qualls 2009, pp. 287-288). As with many snake species,
fragmentation by roads, urbanization, or incompatible habitat
conversion continues to be a major threat affecting the black pinesnake
(see discussion below under Factor E: Other Natural or Manmade Factors
Affecting Its Continued Existence).
Very little information on the black pinesnake's breeding and egg-
laying is available from the wild. Lyman et al. (2007, p. 39) described
the time frame of mid-May through mid-June as the period when black
pinesnakes breed at Camp Shelby, and mating activities may take place
in or at the entrance to armadillo burrows. However, Lee (2007, p. 93)
described copulatory behavior in a pair of black pinesnakes in late
[[Page 60470]]
September. Based on dates when hatchling black pinesnakes have been
captured, the potential nesting and egg deposition period of gravid
females extends from the last week in June to the last week of August
(Lyman et al. 2009, p. 42). In 2009, a natural nest with a clutch of
six recently hatched black pinesnake eggs was found at Camp Shelby (Lee
et al. 2011, p. 301) at the end of a juvenile gopher tortoise burrow.
As there is only one documented natural black pinesnake nest, it is
unknown whether the subspecies exhibits nest site fidelity; however,
nest site fidelity has been described for other Pituophis species.
Burger and Zappalorti (1992, pp. 333-335) conducted an 11-year study of
nest site fidelity of northern pinesnakes in New Jersey, and documented
the exact same nest site being used for 11 years in a row, evidence of
old egg shells in 73 percent of new nests, and recapture of 42 percent
of female snakes at prior nesting sites. The authors suggest that
females returning to a familiar site should have greater knowledge of
available resources, basking sites, refugia, and predator pressures;
therefore they would have the potential for higher reproductive success
compared with having to find a new nest site (Burger and Zappalorti
1992, pp. 334-335). If black pinesnakes show similar site fidelity, it
follows that they too might have higher reproductive success if their
nesting sites were to remain undisturbed.
Specific information about underground refugia of the black
pinesnake was documented during a study conducted by Rudolph et al.
(2007, p. 560), which involved excavating five sites used by the
subspecies for significant periods of time from early December through
late March. The pinesnakes occurred singly at shallow depths (mean of
9.8 in (25 cm); maximum of 13.8 in (35 cm)) in chambers formed by the
decay and burning of pine stumps and roots (Rudolph et al. 2007, p.
560). The refugia were not excavated by the snakes beyond minimal
enlargement of the preexisting chambers. These sites are not considered
true hibernacula because black pinesnakes move above ground on warm
days throughout all months of the year (Rudolph et al. 2007, p. 561;
Baxley 2007, pp. 39-40). Means (2005, p. 76, and references therein)
suggested that longleaf pine is likely to be more important than other
southern pine species to animals using stumpholes, because longleaf
pine has a more resinous heartwood, deeper taproot, and lateral roots
spreading out 50 feet (ft) (15.2 meters (m)) or more.
Longevity of wild black pinesnakes is not well documented, but can
be at least 11 years, based on recapture data from Camp Shelby (Lee
2014b, pers. comm.). The longevity record for a captive male black
pinesnake is 14 years, 2 months (Slavens and Slavens 1999, p. 1).
Recapture and growth data from black pinesnakes on Camp Shelby indicate
that they may not reach sexual maturity until their 4th or possibly 5th
year (Yager et al. 2006, p. 34).
Potential predators of black pinesnakes include red-tailed hawks
(Buteo jamaicensis), raccoons (Procyon lotor), skunks (Mephitis
mephitis), red foxes (Vulpes vulpes), feral cats (Felis catus), and
domestic dogs (Canis familiaris) (Ernst and Ernst 2003, p. 284; Yager
et al. 2006, p. 34; Lyman et al. 2007, p. 39).
Historical/Current Distribution
There are historical records for the black pinesnake from one
parish in Louisiana (Washington Parish), 14 counties in Mississippi
(Forrest, George, Greene, Harrison, Jackson, Jones, Lamar, Lauderdale,
Marion, Pearl River, Perry, Stone, Walthall, and Wayne Counties), and 3
counties in Alabama west of the Mobile River Delta (Clarke, Mobile, and
Washington Counties). Historically, populations likely occurred in all
of these contiguous counties; however, current records do not support
the distribution of black pinesnakes across this entire area. Recently,
a black pinesnake was observed in a new county, Lawrence County,
Mississippi, where the subspecies had not previously been documented
(Lee 2014b, p. 1). However, is not known whether this snake represents
a new extant population.
Duran (1998a, p. 9) and Duran and Givens (2001, p. 24) concluded
that black pinesnakes have likely been extirpated from Louisiana and
from two counties (Lauderdale and Walthall) in Mississippi. In these
two studies, all historical and current records were collected; land
managers from private, State, and Federal agencies with local knowledge
of the subspecies were interviewed; and habitat of all historical
records was visited and assessed. As black pinesnakes have not been
reported west of the Pearl River in either Mississippi or Louisiana in
over 30 years, and since there are no recent (post-1979) records from
Pearl River County (Mississippi), we believe them to likely be
extirpated from that county as well.
In general, pinesnakes are particularly difficult to survey given
their tendency to remain below ground most of the time. However, a
review of records, interviews, and status reports, coupled with a
Geographic Information System (GIS) analysis of current suitable
habitat, indicated that black pinesnakes likely remain in all
historical counties in Alabama and in 11 out of 14 historical counties
in Mississippi (Forrest, George, Greene, Harrison, Jackson, Jones,
Lamar, Marion, Perry, Stone, and Wayne Counties). Black pinesnake
populations in many of the occupied counties in Mississippi occur in
the De Soto NF. Much of the habitat outside of De Soto NF has become
highly fragmented, and populations on these lands appear to be small
and isolated on islands of suitable habitat (Duran 1998a, p. 17;
Barbour 2009, pp. 6-13).
Population Estimates and Status
Duran and Givens (2001, pp. 1-35) reported the results of a habitat
assessment of all black pinesnake records (156) known at the time of
their study. Habitat suitability of the sites was based on how the
habitat compared to that selected by black pinesnakes in a previously
completed telemetry study of a population occupying what was considered
high-quality habitat (Duran 1998b, pp. 1-44). Black pinesnake records
were joined using a contiguous suitable habitat model (combining areas
of suitable habitat with relatively unrestricted gene flow) to create
``population segments'' (defined as ``that portion of the population
located in a contiguous area of suitable habitat throughout which gene
flow is relatively unrestricted'') from the two-dimensional point data.
These population segments were then assessed using a combination of a
habitat suitability rating and data on how recently and/or frequently
black pinesnakes had been recorded at the site. By examining historical
population segments, Duran and Givens (2001, p. 10) determined that 22
of the 36 (61 percent) population segments known at the time of their
study were either extirpated (subspecies no longer present), or were in
serious jeopardy of extirpation. During the development of this listing
rule, we used GIS to reassess the habitat suitability of the 14
population segments not determined to be in serious jeopardy of
extirpation by Duran and Givens (2001, p. 10). Our estimate of the
number of populations was derived by overlaying habitat from a current
GIS analysis with the locality record data (post-1990) from species/
subspecies experts, Natural Heritage Programs, State wildlife agencies,
and the site assessments of Duran and Givens (2001, pp. 1-35) and
Barbour
[[Page 60471]]
(2009, pp. 1-36). We used locality records back to 1990, because this
date coincides with that chosen by Duran and Givens (2001, pp. 1-35)
and Barbour (2009, pp. 1-36) in their comprehensive black pinesnake
habitat assessments. Using the movement and home range data provided by
black pinesnake researchers (Duran 1998b, pp. 15-19; Yager et al. 2005,
pp. 27-28; Baxley and Qualls 2009, pp. 287-288), a population was
determined to be distinct if it was separated from other localities by
more than 1.3 miles (mi.) (2.1 kilometers (km)). Using our recent
assessment, we estimate that 11 of the 14 populations of black
pinesnakes remain extant today. Five of these 11 populations occur in
Alabama and 6 in Mississippi. However, current data are insufficient to
make a determination of the number of individuals that comprise each
remaining population.
Our current GIS analysis indicates that 3 of the 11 remaining black
pinesnake populations, all located in Alabama and lacking recent
records, are not likely to persist long term due to: Presence on, or
proximity to, highly fragmented habitat; lack of protection and habitat
management for the site; or both. The majority of the known black
pinesnake records, and much of the best remaining habitat, occurs
within the two ranger districts that make up the De Soto NF in
Mississippi. These lands represent a small fraction of the former
longleaf pine ecosystem that was present in Louisiana, Mississippi, and
Alabama, and was historically occupied by the subspecies. At this time,
we believe the six populations in Mississippi (five on the De Soto NF
and one in Marion County) and two sites in Alabama (in Clarke County)
are the only ones considered likely to persist long term because of
their presence on relatively unfragmented forest and protection or
management afforded to the habitat or subspecies.
Summary of Comments and Recommendations
In the proposed rule published on October 7, 2014 (79 FR 60406), we
requested that all interested parties submit written comments on the
proposal by December 8, 2014. We reopened the comment period on the
listing proposal on March 11, 2015 (80 FR 12846) with our publication
of a proposed critical habitat designation for the subspecies. This
second 60-day comment period ended on May 11, 2015. During both comment
periods, we also contacted appropriate Federal and State agencies,
scientific experts and organizations, and other interested parties and
invited them to comment on the proposal. Newspaper notices inviting
general public comment were published in the Mobile Press Register and
Hattiesburg American on October 12, 2014, and again on March 15, 2015.
We also presented several webinars on the proposed listing and critical
habitat rules, and invited all stakeholders, media, and congressional
representatives to participate and ask any questions. The webinar
information was posted on our Web site along with copies of the
proposed listing rule, press release, and a question/answer document.
We did not receive any requests for a public hearing within the
designated timeframe. During the two comment periods for the proposed
rule, we received nearly 300 comments addressing the proposed listing
and critical habitat rules. In this final rule, we address only the
comments regarding the proposed listing and the associated rule under
section 4(d) of the Act (16 U.S.C. 1531 et seq.). Comments specific to
the proposed critical habitat designation (80 FR 12846) for this
subspecies will be addressed in the final critical habitat
determination at a later date. All relevant substantive information
provided during comment periods has either been incorporated directly
into this final determination or is addressed below.
Peer Reviewer Comments
In accordance with our peer review policy published on July 1, 1994
(59 FR 34270), we solicited expert opinion from six knowledgeable
individuals with scientific expertise that included familiarity with
the black pinesnake and its habitat, biological needs, and threats, as
well as those with experience in studying other pinesnake species. We
received responses from all of the peer reviewers.
We reviewed all comments we received from the peer reviewers for
substantive issues and new information regarding the listing of black
pinesnake. The peer reviewers generally concurred with our methods and
conclusions, and provided additional information, clarifications, and
suggestions to improve this final rule. Four of the peer reviewers
specifically expressed their support for the subspecies' listing as a
threatened species; a fifth peer reviewer questioned our
characterization that the rate of decline had moderated for this
subspecies due to conservation actions, and suggested the black
pinesnake might actually qualify as endangered. The sixth peer reviewer
limited her comments to the critical habitat proposal and did not
specifically address the proposed listing rule. Several peer reviewers
noted that information was limited on some life-history attributes but
stated that, based on the best available information, the Service had
presented a compelling case for listing as threatened. Four of the peer
reviewers stressed the importance of stump holes and associated root
systems to the subspecies and most noted the importance of conserving
outlying populations to support conservation genetics of the
subspecies. Substantive peer reviewer comments are addressed in the
following summaries and incorporated into the final rule as
appropriate.
(1) Comment: Peer reviewers provided additional information and
suggestions for clarifying and improving the accuracy of the
information in the ``Habitat,'' ``Life History,'' ``Historical/Current
Distribution,'' Summary of Factors Affecting the Species, and Available
Conservation Measures sections of the preamble of the proposed rule.
Our Response: We appreciate these corrections and suggestions, and
have made changes to this final rule to reflect the peer reviewers'
input.
(2) Comment: Two peer reviewers stated that our characterization of
``open canopy'' as <=70 percent canopy coverage in our discussion of
target suitable black pinesnake habitat, under the ``Provisions of the
Proposed Special Rule'' section, was not appropriate. They stated that
studies have shown that pinesnakes more frequently utilize areas with
<50 percent canopy coverage.
Our Response: There appears to be some variability in the
literature as to what percentage of canopy closure constitutes an open
canopy. Therefore, we have removed any reference of a specific value
for canopy coverage as optimal habitat for the black pinesnake in this
final rule. We have focused instead on the presence of an abundant
herbaceous groundcover, which is a component of optimal habitat for
this subspecies and is provided for in an appropriately open-canopied
forest.
(3) Comment: One peer reviewer stated that the increasing use of
erosion control blankets (ECBs) containing polypropylene mesh poses a
potential threat to black pinesnakes. ECBs, which are often used for
erosion control on pipeline construction projects, but may also be used
for bird exclusion, have been documented to entangle many species of
snakes, causing lacerations and mortality. They often take years to
decompose, presenting a long-term entanglement hazard, even when
discarded.
Our Response: We appreciate this new information, and have made
changes to this final rule to reflect the
[[Page 60472]]
peer reviewer's input (see ``Factor E: Other Natural or Manmade Factors
Affecting Its Continued Existence'' in the Summary of Factors Affecting
the Species section, below).
(4) Comment: One peer reviewer and several public commenters
questioned whether our determination of ``threatened'' was appropriate,
instead of ``endangered.'' While the public commenters provided no
justification for their statements, the peer reviewer suggested there
are no data that indicate rates of population decline have moderated;
therefore it is possible that the decline has accelerated. The peer
reviewer mentioned that there have been minimal conservation
accomplishments concerning the black pinesnake throughout its
intermittent status as a candidate species over the last 30 years.
Our Response: The Act defines an endangered species as any species
that is ``in danger of extinction throughout all or a significant
portion of its range'' and a threatened species as any species ``that
is likely to become endangered throughout all or a significant portion
of its range within the foreseeable future.'' The determination to list
the black pinesnake as threatened was based on the best available
scientific and commercial data on its status, the existing and
potential threats to the subspecies, and ongoing conservation actions.
While it may be difficult to determine the ultimate success of these
conservation actions, we know that discussions between the Service and
our public lands partners, in particular, have resulted in new language
within their formal management plans to protect and enhance black
pinesnake habitat. For example, the Mississippi Army National Guard
(MSARNG) has amended its integrated natural resources management plan
(INRMP) to provide for the protection and management of the black
pinesnake (see ``Conservation Efforts to Reduce Habitat Destruction,
Modification, or Curtailment of Its Range'' under Factor A in the
Summary of Factors Affecting the Species section, below).
We find that endangered status is not appropriate for the black
pinesnake because, while we found the threats to the subspecies to be
significant and rangewide, we did not find that the threats currently
place the subspecies in danger of extinction throughout all or a
significant portion of its range. Although there is a general decline
in the overall range of the subspecies and its available habitat, we
believe that the rate of decline has slowed in recent years due to
restoration efforts, and range contraction is not severe enough to
indicate imminent extinction. Therefore, we find that the black
pinesnake meets the definition of a threatened species based on the
immediacy, severity, and scope of the threats described above (see
Determination section, below).
(5) Comment: Two peer reviewers and several public commenters
questioned our determination that illegal collection from the wild was
not a significant threat to the black pinesnake. One peer reviewer
suggested that people in the pet trade may value wild-caught
individuals with novel genetics, while public commenters postulated
that the listing of the pinesnake may make it more difficult for
enthusiasts and hobbyists to purchase individuals, therefore snakes
from wild populations may be more vulnerable to collection.
Additionally, a peer reviewer suggested that illegal collection would
have a drastic impact on those populations that may have only a few
individuals.
Our Response: In this final listing rule, we continue to rely upon
the best scientific and commercial information available, which in this
case includes correspondence with individuals who have experience with
the history of the pinesnake pet trade in the area (see ``Factor B:
Overutilization for Commercial, Recreational, Scientific, or
Educational Purposes'' in the Summary of Factors Affecting the Species
section, below). Those sources maintained that the need for collection
of wild specimens is thought to have declined dramatically due to the
pet trade being currently saturated with captive-bred black pinesnakes.
There is no information available to suggest that illegal collection
will increase once the subspecies is listed (and no new information to
support this was received during the comment periods). Since the black
pinesnake is fossorial (and thus difficult to locate), and does not
overwinter in communal den sites, we believe this potential threat to
be minor.
(6) Comment: Two peer reviewers and a number of public commenters
stated that using locality data from 1990 as support for presence of
extant populations may not reflect the current status of black
pinesnakes and the subspecies may have since disappeared from these
sites. On the other hand, a third peer reviewer stated that the lack of
records for several decades in an area is not sufficient evidence to
support that black pinesnakes have been extirpated from that area if
some suitable habitat still exists.
Our Response: As we discussed in ``Population Estimates and
Status'' in the Background section (above), we used data dated back to
1990, which is consistent with the date used by black pinesnake
researchers to represent occupied localities in their comprehensive
habitat assessments of black pinesnake localities. These records and
the researchers' reports represent the best scientific data available
at the time of listing. We conducted an updated GIS habitat analysis of
the areas containing the post-1990 records, and if we found that
sufficient forested habitat was still present, we determined that there
was a reasonable likelihood that black pinesnake populations may still
occur in those areas. If suitable habitat had disappeared in proximity
to the record, we made the assumption that although a few individual
snakes may still be present, the area likely could no longer support a
population capable of persisting long term.
(7) Comment: Three peer reviewers and several other commenters
questioned our discussion and assessment relating to the viability of
the black pinesnake populations. Two peer reviewers noted we needed to
supply numerical values to demonstrate both population viability and
minimum reserve area.
Our Response: We do not currently have data (numerical values) on
what constitutes a viable population for the black pinesnake and,
therefore, have removed any discussion on viability of populations from
this final listing rule. As stated in the ``Population Estimates and
Status'' section under the Background section, above, we determined
that 3 of the 11 currently known populations were not likely to persist
in the long term due to their location on fragmented habitat and the
lack of any protection or management in place. Viability, particularly
with respect to minimum reserve area (minimal acreage necessary to
support a viable population), will be discussed in our final critical
habitat designation.
Federal Agency Comments
(8) Comment: One Federal agency and many public commenters
disagreed with our assessment of the current decline of the longleaf
pine ecosystem in the Southeast. These commenters also questioned our
statement that increases in longleaf pine forests through restoration
efforts in the Southeast do not align with the range of the black
pinesnake.
Our Response: See our discussion of longleaf pine habitat under
Factor A: The Present or Threatened Destruction, Modification, or
Curtailment of Its Habitat or Range. Although there has been an
extensive effort to restore longleaf pine in the Southeast, the
[[Page 60473]]
footprint of the longleaf pine ecosystem across its historical range
continues to contract, with considerable losses being attributed to the
conversion to loblolly pine (Oswalt et al. 2015, p. 504). Increases in
longleaf pine acreage from restoration efforts do not overlap
completely with the range of the black pinesnake (Ware 2014, pers.
comm.). Recent outlooks for the southern Gulf region (which includes
the range of the black pinesnake) still predict large percentage losses
in longleaf pine distribution; in fact, Clarke County, Alabama, and
several Mississippi counties occupied by the black pinesnake are
predicted to have some of the highest percentages of longleaf pine loss
in the Southeast (Klepzig et al. 2014, p. 53).
(9) Comment: One Federal agency and many public commenters
disagreed that urbanization is still a contributor to habitat loss
within the range of the black pinesnake and expressed concern with our
forecast on the continued loss of forest land to urbanization over the
next 50 years. Commenters stated that our forestry forecast was not
adjusted to account for the recent economic collapse and subsequent
changes in U.S. timber markets and forecasts.
Our Response: We recognize that not all areas within the range of
the black pinesnake are forecast to have the same predicted levels of
population growth in the next few decades, and some rural areas may
experience population declines. However, we also recognize that many
counties within the black pinesnake's range are still forecast to
experience increases in urban land use, especially in areas near
Mobile, Alabama, that have historically seen drastic habitat loss. We
used the Southern Forest Futures Project to develop information in this
rule regarding factors that are likely to result in forest changes
within the range of the black pinesnake; this analysis covered a number
of different scenarios of future population/income growth and timber
prices and baseline tree planting rates (Klepzig et al. 2014, pg. vi).
In all future scenarios, the southern Gulf region (which includes the
range of the black pinesnake), as well as all the other southern U.S.
subregions, exhibited a strong growth in population (Klepzig et al.
2014, pg. 20). See our discussion of longleaf pine habitat under Factor
A: The Present or Threatened Destruction, Modification, or Curtailment
of Its Habitat or Range.
(10) Comment: One Federal agency and numerous commenters disagreed
that clearcut harvesting (clearcutting) constituted a management
activity that destroys black pinesnake habitat. Some public commenters
further elaborated that it is the activities occurring prior to the
clearcut, or the managed condition after the clearcut, which are the
potential threats to habitat. Many public commenters recommended that
clearcutting be exempted as an intermediate treatment under the 4(d)
rule.
Our Response: We recognize that while some clearcut harvesting may
have a negative impact on black pinesnake habitat, at other times it is
a necessary management tool to restore a forest to a condition suitable
for pinesnakes and other native wildlife. For instance, clearcutting
off-site pine species prior to afforestation or reforestation with
longleaf pine and clearcutting with longleaf reserves to promote
natural regeneration can both be very appropriate for creating and
maintaining suitable black pinesnake habitat. Therefore, we removed the
specific activity ``clearcutting'' from the list of activities which
could potentially result in a violation of Section 9 of the Act. The
4(d) rule identifies activities causing significant subsurface
disturbance or the conversion of the native longleaf pine forest to
another forest cover type (or agricultural/urban uses) as the specific
activities potentially causing take and threatening the subspecies.
(11) Comment: Two Federal agencies, one State agency, and numerous
public commenters stated that more data and information were needed
before proceeding with a federal listing of the black pinesnake.
Commenters noted the lack of demographic data, life-history studies,
and current rangewide surveys and population estimates as critical
information needed to assess the subspecies' status and population
trends. Several others noted that population estimates should be
considered a minimum because pinesnakes are difficult to locate given
their tendency to remain below ground most of the time, and because
most black pinesnake records were the result of incidental observations
in the course of other activities or biased based on number of
observers frequenting the area.
Our Response: It is often the case that data are limited for rare
species, and we acknowledge that it would be useful to have more
information on the black pinesnake. However, as required by the Act, we
base our determination on the best available scientific and commercial
information at the time of our rulemaking. Trend information on
population levels and habitat loss/availability or population/habitat
indices often represent the best available information upon which to
base listing actions. In arriving at our determination that the black
pinesnake meets the definition of ``threatened'' under the Act, we note
our conclusion is not based on estimates of population size or strictly
on observational data, but on the reductions in range and numbers of
populations due to past threats, and the negative impact of ongoing
threats to those few populations that remain. Observational data
(records) were only part of the analysis of population trends, as we
evaluated habitat suitability through GIS as part of a probability of
occurrence determination (please see our response to Comment 6, above).
The Service determined that the available suitable habitat has
diminished to the point that many historical populations have been
severely reduced and gene flow between surviving populations has been
restricted to the point of preventing the natural recovery of the
subspecies.
(12) Comment: One Federal agency expressed concern over our
statement that activities causing ``ground disturbance'' could
potentially result in a violation of take under section 9 of the Act
and thereby impact military training or habitat restoration on the Camp
Shelby Joint Forces Training Center (Camp Shelby) in Mississippi.
Our Response: Following a review of the comments and our revision
of the 4(d) rule, we have clarified the list of potential section 9
violations (see Available Conservation Measures, below). We
specifically focused on those activities that may impact the black
pinesnake refugia (stump holes), the most important habitat feature for
the subspecies, in our development of the list of potential section 9
violations. Therefore, we have replaced ``activities causing ground
disturbance'' with a more focused statement of those ``activities
causing significant subsurface disturbance.'' We do not believe that
normal military training operations will cause significant subsurface
disturbance in the forested areas occupied by black pinesnakes, as
artillery firing occurs on ranges that are maintained as mowed open
fields, and troop- and vehicle-maneuvering activities do not cause
significant disturbance that would destroy underground refugia. Habitat
restoration and maintenance activities are covered under Camp Shelby's
INRMP, which includes specific conservation measures to benefit black
pinesnakes, including protection and maintenance of pine stumps (MSARNG
2014, p. 93). Military training operations on Camp Shelby have been
compatible with protection measures for the burrows of the gopher
[[Page 60474]]
tortoise (Gopherus polyphemus), which has been federally listed for 28
years. We believe these operations will be compatible with protecting
black pinesnakes and their habitat as well. As we have done with the
gopher tortoise, we will work with the Department of Defense (DoD) and
Camp Shelby to ensure their military mission can be accomplished and
habitat restoration efforts can continue.
Comments From States
Section 4(b)(5)(A)(ii) of the Act requires the Service to give
actual notice of any proposed listing regulation to the appropriate
agency of each State in which the species is believed to occur, and
invite each such agency to comment on the proposed regulation. We
received comments from the Alabama Department of Conservation and
Natural Resources, Wildlife and Freshwater Fisheries Division (ADCNR);
the Mississippi Department of Wildlife, Fisheries and Parks (MDWFP);
the Secretary of State for Mississippi; and the Louisiana Department of
Wildlife and Fisheries (LDWF). The ADCNR provided an initial comment
supporting the listing of the black pinesnake as threatened, which was
followed later by a letter rescinding its support for the threatened
listing and citing its belief that additional information was needed
prior to making a listing decision. The MDWFP noted that it did not
support any regulation or listing that would restrict or prohibit
private landowners from managing their property for their objectives,
specifically timber management. These agencies in Alabama and
Mississippi also expressed concern that the 4(d) rule as proposed was
too narrow in scope and would negatively impact private landowners
managing timber. The LDWF initially commented that it did not consider
the black pinesnake extirpated in Louisiana, based on a 2005 reported
observation; however, they later retracted this statement. Based on
further analysis, LDWF determined that the 2005 report was unverifiable
and scientifically invalid; therefore, it failed to meet the criteria
as an element of occurrence in the Louisiana Natural Heritage Program
database. LDWF also stated that it supported the black pinesnake's
proposed listing as threatened with a 4(d) rule to exempt beneficial
management practices and noted that Louisiana is continuing to lose
suitable upland pine habitat due to urban development. Specific issues
raised by the States are addressed below.
(13) Comment: ADCNR and many public commenters stated that the
proposed 4(d) rule was overly prescriptive and recommended a 4(d) rule
similar to the Louisiana black bear (Ursus americanus luteolus) 4(d)
rule, which exempts take occurring during all normal forestry
activities that do not negatively impact den trees (see 50 CFR
17.40(i)). ADCNR also stated that it would support a 4(d) rule that
provides for open canopy conditions; abundant ground cover; and refugia
habitat such as stumps, snags, and woody debris.
Our Response: We appreciate the input from ADCNR and other
commenters, and have made adjustments to the 4(d) rule to exempt, among
other things, all forest management activities that maintain lands in a
forested condition, except those activities causing significant
subsurface disturbance or converting longleaf pine forests to other
forest cover types. This change is in recognition of the naturally
decayed or burned-out pine stump holes as an essential habitat feature
for the black pinesnake, much like the Louisiana black bear 4(d) rule
was developed to protect an essential habitat feature for that species.
Not all suggested changes were incorporated because not all activities
are consistent with a 4(d) rule that is ``necessary and advisable for
the conservation of the species.'' We believe this revised 4(d) rule
for the black pinesnake focuses on protecting those habitats and
features most important to black pinesnake conservation, and addresses
the standards supported by ADCNR. In addition, many forest operations
in Alabama and Mississippi may already be operating in a manner
consistent with the 4(d) rule. For instance, the language associated
with conversion of longleaf pine forests to other forest types is
consistent with Sustainable Forestry Initiative guidelines that protect
rare and ecologically significant native forests (SFI 2015, p. 4),
while some landowners indicated that they did not routinely remove
stumps in these habitats.
(14) Comment: One state agency (ADCNR) and many public commenters
requested that the comment period be extended for the proposed listing.
Our Response: We consider the two comment periods on the proposed
listing, totaling 120 days, to have provided the public a sufficient
opportunity for submitting comments. We provided a 60-day comment
period associated with the publication of the listing proposed rule,
which opened on October 7, 2014 (79 FR 60406), and closed on December
8, 2014. We then reopened the comment period for an additional 60 days
on March 11, 2015, in association with our publication of our proposed
critical habitat designation for the black pinesnake (80 FR 12846).
This second comment period closed on May 11, 2015.
The Act requires the Service to publish a final rule within 1 year
from the date we propose to list a species. In order to extend the
comment period, we would have risked missing this deadline, unless we
sought an extension under section 4(b)(6)(B)(i) of the Act. The Act
allows this extension is if there is substantial disagreement regarding
the sufficiency or accuracy of the available data relevant to the
determination or revision concerned, but only for 6 months and only for
purposes of soliciting additional data. Based on the comments we
received and data we evaluated, although there are differences in
interpretation of the existing data, there is not substantial
scientific disagreement regarding the sufficiency or accuracy of the
available data. Please also see our response to Comment 11, above.
(15) Comment: MDWFP and many public commenters voiced opposition to
any regulations that would prohibit landowners from managing their
lands for their objectives with the focus on timber management
operations. The Secretary of State for Mississippi and many public
commenters expressed concern due to their perception that the proposed
4(d) rule, as written, specifically required landowners to adhere to
certain timber management metrics, including placing limitations on
harvest size and canopy closure, as well as requiring the planting of
only longleaf pine.
Our Response: Throughout the development of this listing rule, we
have attempted to describe black pinesnake habitat by characterizing
the historical ecosystem in which pinesnakes evolved, and the primary
habitat features important to pinesnakes, with data from publications
and reports to support the utility of these habitat features. This has
been taken by many as a prescription for how all landowners must manage
their land from now on; however, in no way is the rule intended to
prescribe management conditions. The Service will not require
landowners to harvest their timber in a certain way, nor will we
restrict landowners from managing loblolly or other pine tree species
on their lands.
We will continue to recommend that longleaf pine be the preferred
overstory species within the historical longleaf range. While black
pinesnake habitat management can be successfully integrated with
forestry practices in all pine species, longleaf pine is better suited
for many reasons. Longleaf pines have open crowns that allow more
[[Page 60475]]
sunlight to reach the ground. The trees can be burned at younger ages
and can be managed on longer rotations. Further, longleaf pines are
more disease- and insect-resistant when compared to loblolly pines, and
more resistant to wind damage due to the deep taproot and smaller crown
density.
It should also be noted that densely planted pine plantations are
not considered habitat for the black pinesnake, and, therefore, any
actions in these stands are unlikely to result in take. In addition,
landowners are not required to adhere to the conditions outlined in the
4(d) rule. There is no requirement to follow these voluntary guidelines
and landowners who would prefer not to use the exemptions may consult
with the Service on their forestry management practices if there is a
potential to impact the black pinesnake. No consultation would be
needed for forest management activities outside of the known areas
occupied by the subspecies.
(16) Comment: ADCNR and many public commenters stated that it is
not essential for longleaf pine to be the primary forest cover for an
area to be considered black pinesnake habitat and that it is the
structure of the forest that is more important. Therefore, longleaf
pine should be de-emphasized throughout the rule, and it should not be
a requirement to meet the provisions for the 4(d) rule. Consequently,
some public commenters maintained that if there is no indication that
longleaf pines are a necessary component of black pinesnake habitat,
then the assumption that black pinesnake populations have declined
proportionately with the decline in longleaf pine forests is invalid.
Our Response: We believe the structure of the forest occupied by
black pinesnakes is very important, and we recognize that some studies
have shown that pinesnakes have not always been found exclusively using
longleaf pine forests, though it should be noted that the need for
open-canopy and herbaceous understory has been supported in these
studies.
Many forests are not managed to foster open conditions in the
understory. Typical pine plantation management (i.e., characterized by
high stocking rates), for instance, differs from the conditions favored
by this subspecies for several reasons. Pine plantations are not
typically maintained in the open-canopied condition with an abundant
herbaceous groundcover that is characteristic of the structure of this
historical ecosystem. These converted forests differ from the native
longleaf pine ecosystem in which the black pinesnake evolved, most
noticeably in that they exhibit frequent canopy closure, often use
practices that destroy subsurface structure, and have more limitations
on how fire may be used as the primary management tool.
Even in cases where loblolly is favored in a more open condition,
it does not function in the same way as longleaf over the long term. In
fact, the Longleaf Alliance has said, ``The introduction of periodic
fire and recovery of groundcover and wildlife communities may be
possible without longleaf for the short term. Eventually, however, the
fire regime necessary to maintain the desired groundcover and wildlife
communities can only be maintained in longleaf pine forests. Treating
longleaf pine like loblolly pine will not achieve the desired results''
(Longleaf Alliance 2015, unpaginated). The tree species itself matters
because, over time, the fire necessary to maintain the herbaceous
groundcover that supports this subspecies is only well-tolerated by
longleaf pine. Further, Means (2005, p. 76, and references therein)
suggested that longleaf pine is likely to be more important than other
southern pine species to animals using stumpholes, because longleaf
pine has a more resinous heartwood, deeper taproot, and lateral roots
spreading out 50 ft (15.2 m) or more. Therefore, we believe that the
decline of the black pinesnake is closely linked to the decline of the
characteristic longleaf pine ecosystem.
Typically, if converted forests display an open-canopied condition,
it is only temporary, and when the canopy closes that habitat becomes
unsuitable for both black pinesnakes and their prey. Occurrence of
pinesnakes in these forests should not be confused with preference for
those types of habitat. We believe the pinesnakes in converted forests
are selecting for the best available sub-optimal habitat, and although
they may be persisting sporadically in the modified habitat, once the
canopy closes again they will be forced to relocate because there will
be no herbaceous groundcover to support prey populations on which the
subspecies depends for survival. This has been supported through radio-
telemetry data, which show that black pinesnakes most often utilize
open-canopied forests (Baxley and Qualls 2009, p. 289).
A long history of removal of subsurface structure (e.g., stumps and
root channels) and conversion from native forests to other uses has
eliminated both the subspecies and suitable habitat; therefore, it is
unlikely that sites that have been intensively managed through multiple
rotations or converted to agriculture or urban areas will support
populations long term. This is likely because the refugia habitat has
been removed, the surface can no longer support prey species, road
density and thereby the threat posed by road crossings increases, or
simply because the habitat (in any condition, optimal or suboptimal) no
longer remains on a site.
Public Comments
General Issue 1: Captive Propagation
(17) Comment: A number of commenters representing the captive
breeding community voiced concern over the listing, especially with its
impact to pet owners, future sales of black pinesnakes, work of
researchers, and zoological institutions. Some specifically requested
that captive-bred animals be excluded from the listing or exempted
through a 4(d) rule to allow unfettered continuation of captive
breeding, pet ownership, and trade.
Our Response: Black pinesnakes acquired before the effective date
of the final listing of this subspecies (see DATES, above) may be
legally held and bred in captivity as long as laws regarding this
activity within the State in which they are held are not violated. This
would include snakes acquired pre-listing by pet owners, researchers,
and zoological institutions. Future sale of captive-bred black
pinesnakes, born from pre-listing acquired parents, within their State
of their origin would be regulated by applicable laws of that State. If
individuals outside the snake's State of origin wish to purchase
captive-bred snakes, they would have to first acquire a 10(a)(1)(A)
Interstate Commerce permit from the Service (Web site: https://www.fws.gov/forms/3-200-55.pdf). Information about the intended purpose
of purchasing a black pinesnake is required because using federally
threatened species as pets is not consistent with the purposes of the
Act, which is intended to support the conservation of species and
recovery of wild populations. However, an animal with threatened
species status may be legally kept in captivity if it is captive-bred
and used for educational and/or breeding purposes consistent with the
aforementioned intent of the Act. Through the permit process, we are
able to track and monitor the trade in captive-bred listed species. For
this reason, we believe exemption for this activity through a 4(d) rule
would not be appropriate, as it would not meet the standard of
providing for the conservation of the subspecies.
[[Page 60476]]
(18) Comment: Several commenters stated that the Service should
have taken information relating to the large captive-bred population
into the decision to list the subspecies. Several other commenters
stated listing was unnecessary because captive-bred animals could be
released in the wild.
Our Response: While there have been great advances by snake
enthusiasts and hobbyists in successful breeding programs for
pinesnakes, they are not animals bred to be returned to wild habitats.
The Service views captive propagation programs as a last recourse for
conserving species. The Act directs the Service to focus on conserving
the ecosystems upon which endangered and threatened species depend.
Loss of habitat is one of the primary threats to this subspecies.
Before captive animals can be reintroduced, questions of genetics,
disease, and survival in the wild must be evaluated, which is generally
done in a recovery setting while considering all of the options
available for conservation. Captive populations, even when they are
healthy and genetically diverse, will likely not survive in the wild
without adequate habitat to support the subspecies. As we begin the
recovery process, we will consider various options for recovery of the
subspecies, which may include captive propagation. If you have interest
in participating, please refer to the Available Conservation Measures
section, below, for further guidance on participating in this process.
General Issue 2: Forestry Management Practices
(19) Comment: Several commenters representing the forestry industry
stated that the Service misunderstands the nature and ecology of modern
pine plantations and mistakenly thinks that pine plantations are static
``closed canopies'' and have ``thick mid-stories.'' They stated that
pine plantations can provide suitable black pinesnake habitat, and
across a broad, actively-managed forest landscape, pine plantations
that are at different stages of development ensure that suitable
habitat is available at all times. The commenters referred to a 2013
National Council for Air and Stream Improvement (NCASI) report, which
states that of the almost 9 million acres of planted pine forests owned
by large corporate forest landowners, two-thirds of those acres were in
some form of open-canopied condition. The commenters suggested that
suitable black pinesnake habitat should include this type of matrix of
forested stands where the canopy cover is at various stages of being
open and closed, as the pinesnakes would always be able to find areas
where they could locate food, shelter, and mates.
Our Response: We sincerely appreciate the efforts of forest
landowners to provide habitat for a variety of species and would like
to continue working with the forest industry to further explore the
benefits of pine plantations. We believe there are several potential
issues with depending on a matrix of pine plantations to provide
suitable habitat for the subspecies long term; most notably, that not
all forests are managed in a way that will protect the subspecies or
its habitat. At the time of the survey cited by the commenter, two-
thirds of those acres were comprised of young trees that had not grown
large enough to close the canopy, as many of those lands go through
cycles of having closed canopies. For example, if a stand becomes
closed when the trees are 5 to 7 years old, and the first thinning is
at age 14 to 20, there is a period of 7 to 15 years when that stand is
unsuitable for pinesnakes.
The idea that a matrix of intermittently open- and closed-canopied
forest stands provides suitable habitat for black pinesnakes relies on
several assumptions, such as that suitable open habitat will always be
located in close proximity to areas where the canopy is closing, that
areas of suitable habitat will be expansive enough to support the large
home ranges of these snakes, and that snakes which must relocate due to
canopy closure will be able to find adequate access to relocated mates
and prey in their shifted home range. Both Lane et al. (2013, p. 231)
and Hanberry et al. (2013, p. 57) state that small mammal abundance
decreases in response to canopy closure, often to the point of mammals
abandoning the site. Therefore, stands such as these, although open for
a part of the time during the cycle of management and harvesting
activities, are not stable habitats for pinesnakes and do not
contribute to the long-term conservation of the subspecies. In
addition, if incompatible site preparation activities remove subsurface
refugia from a site, it is unlikely pinesnakes would have retreat sites
within these stands for several years following harvest. This increases
the amount of time the subspecies has to spend on the surface
vulnerable to predators.
(20) Comment: Commenters disagreed with the Service's
characterization that site preparation in a modern pine plantation
frequently involves mechanical clearing of downed logs and stumps,
greatly reducing the availability of suitable refugia to black
pinesnakes.
Our Response: It is likely that activities during site preparation
that may greatly reduce the availability of refugia, such as clearing
of stumps and other subsurface disturbance, may not occur as commonly
now as in previous years, particularly on industrial forest lands, and
we have altered the language in this final rule to reflect that.
However, because we received comments from many others asking that
these mechanical site preparation activities be exempted under the 4(d)
rule, we know that they do still occur. These activities must be
identified as potential threats because one of the most important
features of the habitat for black pinesnakes is the presence and
availability of naturally decayed or burned-out pine stump holes in
which the snakes spend a large percentage of their time. Although
pinesnakes may occasionally use debris piles and other aboveground
refugia, it is the subterranean refugia (i.e., stump holes) that are
thought to be most important to the subspecies. Those who manage to the
standards laid out under the 4(d) rule will be exempted from ``take''
for this subspecies.
General Issue 3: Private Land Issues
(21) Comment: Many public commenters stated that there are
insufficient data to determine the effects of the listing on
landowners. They expressed concern that the listing will put an
economic burden on private landowners and restrict their activities.
Our Response: We understand that there is confusion and concern
about the effect of listing the black pinesnake. We acknowledge that
some economic impacts are a possible consequence of listing a species
under the Act. However, the Act does not allow us to consider such
impacts when making a listing decision. Rather, section 4(b)(1)(A) of
the Act specifies that listing determinations be made ``solely on the
basis of the best scientific and commercial data available.'' Such
potential costs are therefore precluded from consideration in
association with a listing determination. We are required to consider
economic impacts in the decision to designate critical habitat, and
have conducted an economic analysis for the proposed critical habitat
rule, which is available at https://www.regulations.gov under Docket No.
FWS-R4-ES-2014-0065.
The Service believes that restrictions alone are neither an
effective nor a desirable means for achieving the conservation of
listed species. We prefer to work collaboratively with private
[[Page 60477]]
landowners. We encourage any landowners with a listed species present
on their properties and who think they may conduct activities that
negatively impact that species to work with the Service. We can help
those landowners determine whether a habitat conservation plan (HCP) or
safe harbor agreement (SHA) may be appropriate for their needs. These
plans or agreements provide for the conservation of the listed species
while providing the landowner with a permit for incidental take of the
species during the course of otherwise lawful activities. Furthermore,
our 4(d) rule for black pinesnake, which includes exemptions for
certain forest management activities, was developed with the intent of
maximizing timber management flexibility to landowners while also
providing for the conservation of the subspecies. Other voluntary
programs, such as the Service's Partners for Fish and Wildlife program
and the Natural Resources Conservation Service's Farm Bill programs,
offer opportunities for private landowners to enroll their lands and
receive cost-sharing and planning assistance to reach their management
goals. The conservation and recovery of endangered and threatened
species, and the ecosystems upon which they depend, is the ultimate
objective of the Act, and the Service recognizes the vital importance
of voluntary, nonregulatory conservation measures that provide
incentives for landowners in achieving that objective. We are committed
to working with landowners to conserve this subspecies and develop
workable solutions.
(22) Comment: Several commenters stated that property rights
granted by the Constitution preclude the government from preventing
landowners from managing property to meet their goals. Landowners
should be able to make use of property at their own free will as long
as it falls within the current county, State, and Federal regulations.
Our Response: The agency acknowledges the rights granted by the
Constitution. Prior court rulings address this concern in more detail.
However, Section 9 of the Act makes it illegal for anyone to ``take''
(defined as harass, harm, pursue, hunt, shoot, wound, kill, trap,
capture, collect, or attempt any of these actions) an endangered or
threatened species. However, the mere promulgation of a regulation,
such as listing a species under the Act, does not prevent landowners
from managing their property to meet their goals. As discussed in our
response to Comment 21, above, programs are available to private
landowners for managing habitat for listed species, as well as permits
that can be obtained to protect private landowners from the take
prohibition when such taking is incidental to, and not the purpose of,
the carrying out of an otherwise lawful activity. Private landowners
may contact their local Service field office to obtain information
about these programs and permits.
(23) Comment: Private landowners should be compensated if land use
is restricted on their property.
Our Response: There is no provision in the Act to compensate
landowners if they have a federally listed species on their property.
However, as addressed in our response to Comment 22, above, the private
landowners' only obligation is not to ``take'' the subspecies, and many
forestry management activities have now been exempted from ``take''
(see 4(d) Rule, below). Also, as mentioned in our response to Comment
21, above, we have a number of programs to provide management guidance
and financial assistance to private landowners managing their lands to
benefit the recovery of listed species. A number of other Federal
agencies and individual States provide financial assistance and similar
programs to interested landowners.
(24) Comment: Several commenters stated that no private lands or
State lands should be included in the listing.
Our Response: Under the Act, we determine whether a species
warrants listing based on our assessment of the five-factor threat
analysis using the best available scientific and commercial
information; land ownership is not a consideration in that
determination. The action of listing a species provides protection for
the species wherever it occurs. Protection for lands essential to the
conservation of a listed species is covered under a designation of
critical habitat and is not a part of this listing rule. A proposed
rule to designate critical habitat for the black pinesnake was
published separately on March 11, 2015 (80 FR 12846), and comments
regarding that proposal will be addressed in the final critical habitat
determination and if appropriate, the designation.
(25) Comment: Several commenters noted that the continuous threat
of species listings and designations of critical habitat will be a
disincentive for landowners to participate in longleaf pine restoration
efforts, may encourage more landowners to grow a monoculture of
loblolly, or may encourage more landowners to abandon forest ownership
and management.
Our Response: We acknowledge and commend landowners for their land
stewardship and want to continue to encourage those management
practices that support the black pinesnake. Under the Act, we have an
obligation to assess threats to species and, if appropriate, provide
for their protection. We have no desire to limit private landowners'
ability to provide habitat for these imperiled species; in fact, we
have a number of financial incentives through our Private Lands program
to help private landowners manage their properties for endangered and
threatened species. Continuation of longleaf pine restoration efforts
across the subspecies' range will be necessary for conservation and
recovery of this subspecies and many other species. We have reviewed
all the comments we received from forest stakeholders and have used
them to refine the 4(d) rule and improve the balance of activities that
would promote conservation of the black pinesnake and its habitat and
not unnecessarily burden private landowners. Please see also our
responses to Comments 21 and 23, above.
General Issue 4: Science
(26) Comment: Several commented that the Service is using any
scientific and commercial data available and not necessarily the best
available. They further stated that the Service did not undertake
efforts to fill the data gaps concerning life history, habitat, and
status of the black pinesnake and have put the burden on private
landowners to provide commercial and scientific data rebutting the data
advanced by the Service.
Our Response: No new data were provided by these commenters to
support this statement, although some have offered different
interpretations of the existing data. We have used the best scientific
and commercial data available to finalize our determination of
threatened status for the black pinesnake. Furthermore, our analysis is
supported by our peer reviewers. Please also see our responses to
Comments 11 and 14, above.
(27) Comment: One commenter stated that the sightings of black
pinesnakes in Alabama in the mid-1990s were reported by individuals
that were not biologists or herpetologists, so these records cannot be
``scientific data.''
Our Response: All Alabama records for the black pinesnake are
either from the Alabama Natural Heritage Program's databases or from
reputable herpetologists. Heritage data are automatically accepted by
the Service as valid due to the strict criteria for their acceptance as
scientific records. Although the descriptive data (observer, date,
coordinates, condition of the
[[Page 60478]]
animal) were not always recorded at a consistent level of detail in
some of the older records, we scrutinized all reputable location data
to differentiate between separate pinesnake observations.
General Issue 5: Procedural/Legal Issues
(28) Comment: One commenter stated that the Service should not use
information that is not peer-reviewed in listing determinations.
Our Response: The Act and our regulations do not require us to use
only peer-reviewed literature, but instead they require us to use the
``best scientific data available'' in a listing decision. Our Policy on
Information Standards under the 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 (https://www.fws.gov/informationquality/
), provide criteria and guidance, and establish procedures 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
list a species. Primary or original information sources are those that
are closest to the subject being studied, as opposed to those that
cite, comment on, or build upon primary sources. In making our listing
decisions, we use information from many different sources, including
articles in peer-reviewed journals, scientific status surveys and
studies completed by qualified individuals, other unpublished
governmental and nongovernmental reports, reports prepared by industry,
personal communication about management or other relevant topics,
management plans developed by Federal agencies or the States,
biological assessments, other unpublished materials, experts' opinions
or personal knowledge, and other sources. In finalizing this listing
determination, we have relied on published articles, unpublished
research, habitat reports, digital data publicly available on the
Internet, and the expert opinions of subject biologists.
That said, in accordance with our peer review policy published on
July 1, 1994 (59 FR 34270), we solicited peer review from knowledgeable
individuals with scientific expertise that included familiarity with
this subspecies and other pinesnakes, the geographic region in which
the subspecies occurs, and conservation biology principles.
Additionally, we requested comments or information from other concerned
governmental agencies, the scientific community, industry, and any
other interested parties concerning the proposed rule. Comments and
information we received helped inform this final rule.
(29) Comment: Several commenters stated that because the proposed
rule arose from the Service's settlement of a lawsuit, the Service is
indirectly encouraged to list the subspecies, or avoid any delays in
listing, even though such delays might result in a more scientifically
sound analysis of the subspecies.
Our Response: Section 4 of the Act and its implementing regulations
(50 CFR part 424) set forth the procedures for adding species to the
Federal Lists of Endangered and Threatened Wildlife and Plants. We
adhered to the requirements of the Act to determine whether a species
warrants listing based on our assessment of the five-factor threats
analysis using the best available scientific and commercial data (see
Summary of Factors Affecting the Species, below). We had already
determined, prior to the settlement agreement, that the black pinesnake
warranted listing under the Act, but listing had been precluded by the
necessity to commit limited funds and staff to complete higher priority
species actions. The black pinesnake has been included in our annual
candidate notices of review since 1999, during which time scientific
literature and data have and continue to indicate that the subspecies
is detrimentally impacted by ongoing threats, and we continued to find
that listing was warranted but precluded. Thus, the listing process is
not arbitrary, but uses the best available scientific and commercial
data and peer review to ensure sound science and sound decision-making.
(30) Comment: Several commented that the Service should not list
another species in Alabama because the Service is unable to fulfill
various mandated obligations with respect to other species already
listed (i.e., timely recovery plans, 5-year reviews)
Our Response: The listing of a species is based on an analysis of
threats according to the Act (see Determination section, below). The
Act does not allow the Service to delay listing of new species until
the Service has completed certain actions, such as recovery plans and
5-year reviews, for other previously listed species.
(31) Comment: Several comments stated that our proposed rule denied
potentially affected landowners due process in that all landowners were
not provided actual notice of this rulemaking.
Our Response: In the proposed listing rule published on October 7,
2014 (79 FR 60406), we requested that all interested parties submit
written comments on the proposal by December 8, 2014. We reopened the
comment period on the listing proposal on March 11, 2015 (80 FR 12846)
with our publication of a proposed critical habitat designation for the
subspecies. This second 60-day comment period ended on May 11, 2015.
During both comment periods, we also contacted appropriate Federal and
State agencies, scientific experts and organizations, and other
interested parties and invited them to comment on the proposal.
Newspaper notices inviting general public comment were published in the
Mobile Press Register and Hattiesburg American on October 12, 2014, and
again on March 15, 2015. We also presented several webinars on the
proposed listing and critical habitat rules, and invited all
stakeholders, media, and congressional representatives to participate
and ask any questions. The webinar information was posted on our Web
site along with copies of the proposed listing rule, press release, and
a question/answer document. As such, we have met our obligations under
the Act with regard to notification concerning the proposed listing.
General Issue 6: Other
(32) Comment: Several commented that existing State regulations are
adequate to protect the black pinesnake. A Federal listing would only
duplicate existing protection because it is illegal to kill the snakes.
Our Response: Section 4(b)(1)(A) of the Act requires us, in making
a listing determination, to take into account those efforts being made
by a State or foreign nation, or any political subdivision of the State
or foreign nation, to protect the species. Under Factor D in the
proposed and final rules to list the subspecies, we provide an analysis
of the existing regulatory mechanisms. In that analysis, we consider
relevant Federal, State, and tribal laws and regulations. Regulatory
mechanisms may negate the need for listing if we determine such
mechanisms address the threat to the species such that listing is not,
or no longer, warranted. However, for the black pinesnake, the best
available information supports our determination that State regulations
are not adequate to remove the threats to the point that listing is not
warranted. Existing State
[[Page 60479]]
regulations, while providing some protection for individual snakes, do
not provide any protection for their habitat (see Summary of Factors
Affecting the Species, Factor D discussion). Loss of habitat has been a
primary driver of the subspecies' decline. The Act provides habitat
protection for listed species both through section 7 and the
designation of critical habitat. In addition, listing provides
resources under Federal programs to facilitate restoration of habitat,
and helps bring public awareness to the plight of the species.
(33) Comment: One commenter stated that the Service should delay
listing and work with other State and Federal agencies and with private
landowners to develop prescribed burning programs to improve habitat
and reverse the trend of decline of the black pinesnake, as it is
largely due to the lack of fire in the woods.
Our Response: We acknowledge that the absence of prescribed burning
has contributed to the degradation of the black pinesnake's habitat and
the decline of the longleaf pine ecosystem. The Service has made the
determination that the black pinesnake is likely to become endangered
in the foreseeable future and that listing is warranted after an
analysis of the five threat factors under the Act. There is no
provision in the Act that would allow us to decline to list a species
once that determination has been made. Furthermore, as discussed in our
response to Comment 14, the criteria for delaying our listing decision
have not been met. As discussed above in our response to Comment 21, we
have a number of programs that provide assistance and financial
incentives to private landowners to increase the use of fire as a
management tool, and we will continue to actively pursue ways to work
with the public and partners to reverse the decline of the black
pinesnake and its habitat.
(34) Comment: Several commenters stated that endangered species
protection is more effectively achieved by allowing forest landowners
to continue to manage their land under voluntary best management
practices or by providing incentives to landowners to initiate longleaf
pine management. Landowners and groups like Longleaf Alliance and
American Forest Foundation encourage landowners to return to longleaf
pine and to manage with fire, thinning, and harvesting, all of which
enhances black pinesnake habitat. Regulations through listing would
serve to further deter cooperative management between public agencies
and landowners.
Our Response: We recognize that the black pinesnake remains
primarily on lands where habitat management has allowed them to
survive, due in large part to voluntary actions incorporating good
land-stewardship, and we want to encourage management practices that
support the subspecies. However, the Service, in conducting its
assessment of the status of the black pinesnake according to standards
in the Act, has determined that certain forest management practices
have contributed to the subspecies' decline. In order to protect the
black pinesnake from continued decline, and because we have determined
that it is likely to become endangered in the foreseeable future, we
are listing the subspecies as threatened. We do recognize the
contributions of forest landowners and have exempted from take a number
of forest management activities under the 4(d) rule. We maintain that
the best chance for conservation and, ultimately, the recovery of the
subspecies will require the protections afforded by listing, as well as
voluntary conservation measures undertaken by private landowners, with
support from the States and conservation organizations. We, and other
Federal and State agencies, have a number of existing programs that
provide incentives to private landowners to initiate longleaf pine
management (e.g., Working Lands for Wildlife, Conservation Reserve
Program). We will continue to work with the public through these
programs to benefit the black pinesnake as we have done for other
longleaf pine endemics such as the threatened gopher tortoise and
endangered red-cockaded woodpecker (Picoides borealis) and dusky gopher
frog (Rana sevosa).
(35) Comment: Several commenters asserted that because the proposed
rule was opposed by the ADCNR and Alabama Forestry Association (AFA),
which have expertise with the subspecies and Alabama forests, that the
Service should not ignore ADCNR's admonitions to gather further
information before proceeding with a listing decision.
Our Response: We acknowledge and value the expertise of the ADCNR
and the AFA. We fully respect the position of the State, even when we
do not entirely agree on their interpretation of the data. The Service
is required to make a determination based on the best available
scientific information, and after reviewing the comments presented by
ADCNR and AFA, as well as all other comments we received, we believe
that the information warrants a final listing determination as
threatened for the black pinesnake. ADCNR stated that it supported a
4(d) rule that provides for open canopy conditions; abundant ground
cover; and refugia habitat such as stumps, snags, and woody debris, and
we believe our 4(d) rule in this final listing determination is
consistent with that recommendation.
(36) Comment: One commenter questioned why the black pinesnake
needed Federal listing as it occurs in the range of other listed
species.
Our Response: The current range of the black pinesnake overlaps
with several other longleaf pine endemics that are federally listed
including the gopher tortoise, red-cockaded woodpecker, and dusky
gopher frog. The black pinesnake likely receives benefit from longleaf
pine restoration efforts and other recovery actions implemented for
these listed species, as some threats to the black pinesnake are
similar to other listed species in its range. However, there are
aspects of black pinesnake habitat that are unique to them,
specifically their use of and need for belowground habitat, such as
stump holes, which are not required by these other listed species.
Any ongoing conservation actions and the manner in which they are
helping to ameliorate threats to the subspecies were considered in our
final listing determination for the black pinesnake (see ``Conservation
Efforts to Reduce Habitat Destruction, Modification, or Curtailment of
Its Range'' under Factor A, below). Our determination is guided by the
Act and its implementing regulations, considering the five listing
factors and using the best available scientific and commercial
information. Our analysis supported our determination of threatened
status for this subspecies.
(37) Comment: Several commenters questioned why the subspecies
should be listed if the most important areas are already being
protected and managed. Another commenter stated that the vast acres of
public lands that exist within the range of the black pinesnake should
be enough to ensure the subspecies continues to persist.
Our Response: Conservation of the black pinesnake will require
collaboration between Federal, State, and local agencies wherever the
subspecies occurs. About half of the known black pinesnake populations
occur primarily on public lands that are typically managed to protect
longleaf pine habitat, and management efforts are ongoing on these
public lands that benefit the black pinesnake; however, these efforts
do not always meet all of the ecological needs of the subspecies (see
Comment 36, above). We consider the populations occupying the De Soto
[[Page 60480]]
NF in Mississippi as representing the core of the subspecies' range,
and these public lands are very important for the conservation and
recovery of the black pinesnake, but Federal lands alone are
insufficient to conserve the subspecies. These areas represent only a
small fraction of the current range of the subspecies. Populations on
the periphery of the range have high conservation value as well in
terms of maintaining the subspecies' genetic integrity, representing
future conservation strongholds, providing future opportunities for
population connectivity and augmentation, and contributing to important
ecosystem functions in the ecological communities where they occur (see
also ``Conservation Efforts to Reduce Habitat Destruction,
Modification, or Curtailment of Its Range'' under Factor A, below).
(38) Comment: One individual commented that we should exempt
activities conducted with cost-share funding sources under the 4(d)
rule. This would include sources such as the Service's Partners for
Fish and Wildlife Program (PFW) and the Natural Resource Conservation
Service's Conservation Reserve Program (CRP), Environmental Quality
Incentives Program (EQIP), and Wildlife Habitat Incentives Program
(WHIP).
Our Response: The primary requirement for activities to qualify for
exemption under section 4(d) of the Act is that they must be necessary
and advisable to provide for the conservation of the species. These
programs play an incredibly valuable role in conservation by providing
assistance to private landowners to manage their lands. However, there
is also a high level of variability among cost-share programs in terms
of their primary conservation and management objectives, which makes it
difficult to determine definitively which programs would always be
beneficial to black pinesnakes. Therefore, we chose to concentrate on
the forestry and management activities beneficial to pinesnakes for
exemption, instead of the individual programs.
Summary of Changes From the Proposed Rule
Based upon our review of the public comments, comments from other
Federal and State agencies, peer review comments, and other new
relevant information that has become available since the publication of
the proposal, we reevaluated our proposed rule and made changes as
appropriate. During the comment periods, the Service received
clarifications and additional information on habitat, threats, the
subspecies' biology, and timber management practices, which have been
incorporated into this final rule. We have removed our discussion
relating to the development of a candidate conservation agreement (CCA)
for the black pinesnake between the Service and the U.S. Forest
Service, U.S. Department of Defense, the Mississippi Army National
Guard (MSARNG), and the Mississippi Department of Wildlife, Fisheries,
and Parks because it was never finalized. However, the conservation
measures outlined in the draft CCA were incorporated into the MSARNG's
2014 updated integrated natural resources management plan (see
``Conservation Efforts to Reduce Habitat Destruction, Modification, or
Curtailment of Its Range'' under Summary of Factors Affecting the
Species). We have also made the following significant changes to the
4(d) rule:
We have provided clarification to take exemptions
regarding prescribed burning and invasive species and vegetation
control.
We have removed the take exemption for ``restoration along
riparian areas and stream buffers'' as there is no need to exempt these
activities because these areas are not considered habitat for the
subspecies, and, therefore, activities associated with their
restoration are unlikely to result in take or promote conservation of
this subspecies. Any observations of black pinesnakes in riparian areas
are incidental to individuals moving between areas of suitable habitat,
typically uplands.
We have broadened the scope of timber management
activities exempted from take to include all forest management
activities that maintain lands in a forested condition, except for
conversion of longleaf-pine-dominated forests to other cover types or
land uses, or those activities causing significant subsurface
disturbance to the underground refugia for the black pinesnake.
We have removed the requirement that silvicultural
treatments exempted from take be performed under a management plan or
prescription toward target conditions for optimal longleaf pine forest.
Our revised 4(d) rule allows for the management of other open-canopied
pine species.
We have modified the list of actions that may result in take under
section 9 in light of modifications made to the exemptions in the 4(d)
rule, with the focus on protecting this subspecies' underground
refugia.
Summary of Factors Affecting the Species
Section 4 of the Act (16 U.S.C. 1533), and its implementing
regulations at 50 CFR part 424, set forth the procedures for adding
species to the Federal Lists of Endangered and Threatened Wildlife and
Plants. Under section 4(a)(1) of the Act, we may list a species based
on (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. Listing actions may be warranted based on any of
the above threat factors, singly or in combination.
Factor A: The Present or Threatened Destruction, Modification, or
Curtailment of Its Habitat or Range
Fire-maintained southern pine ecosystems, particularly the longleaf
pine ecosystem, have declined dramatically across the South. Current
estimates show that the longleaf pine forest type has declined 96
percent from the historical estimate of 88 million ac (35.6 million ha)
to approximately 3.3 million ac (1.3 million ha) (Oswalt et al. 2012,
p. 13). During the latter half of the 20th century, Louisiana, Alabama,
and Mississippi lost between 60 and 90 percent of their longleaf
acreage (Outcalt and Sheffield 1996, pp. 1-10). Recently, longleaf
acreage has been trending upward in parts of the Southeast through
restoration efforts; however, the footprint of the longleaf pine
ecosystem across its historical range continues to contract, primarily
due to conversion to loblolly pine (Oswalt et al. 2015, p. 504).
Additionally, increases in longleaf pine acreage across the Southeast
from longleaf restoration efforts do not overlap completely with the
range of the black pinesnake (Ware 2014, pers. comm.); recent outlooks
for the southern Gulf region still predict large percentage losses in
longleaf pine in many of the areas currently occupied by the subspecies
(Klepzig et al. 2014, p. 53). Southern forest futures models predict
declines of forest land area between 2 and 10 percent in the next 50
years, with loss of private forest land to urbanization accounting for
most of these declines (Wear and Greis 2013, p. 78).
Natural longleaf pine forests, which are characterized by a high,
open canopy and shallow litter and duff layers, have evolved to be
maintained by frequent, low-intensity fires, which
[[Page 60481]]
in turn restrict a woody midstory, and promote the flowering and seed
production of fire-stimulated groundcover plants (Oswalt et al. 2012,
pp. 2-3). Although there are records of black pinesnakes occurring in
open-canopied forests with overstories of loblolly, slash, and other
pines, they are historically associated with the natural longleaf pine
forests, which have the abundant herbaceous groundcover (Duran 1998a,
p. 11; Baxley et al. 2011, p. 161; Smith 2011, pp. 86, 100) necessary
to support the black pinesnake's prey base (Miller and Miller 2005, p.
202).
The current and historical range of the black pinesnake is highly
correlated with the current and historical range of these natural
longleaf pine forests, leading to the hypothesis that black pinesnake
populations, once contiguous throughout these forests in Alabama,
Mississippi, and southeast Louisiana, have declined proportionately
with the ecosystem (Duran and Givens 2001, pp. 2-3). In the range of
the black pinesnake, longleaf pine is now largely confined to isolated
patches on private land and larger parcels on public lands. Black
pinesnake habitat has been eliminated through land use conversions,
primarily conversion to agriculture and densely stocked pine
plantations and development of urban areas. Most of the remaining
patches of longleaf pine on private land within the range of the snake
are fragmented, degraded, second-growth forests (see discussion under
Factor E: Other Natural or Manmade Factors Affecting Its Continued
Existence).
Conversion of longleaf pine forests to densely stocked pine
plantations often reduces the quality and suitability of a site for
black pinesnakes. Duran (1998b, p. 31) found that black pinesnakes
prefer the typical characteristics of the longleaf pine ecosystem, such
as open canopies, reduced mid-stories, and dense herbaceous
understories. He also found that these snakes are frequently
underground in rotting pine stumps. Some pine plantations have closed
canopies and thick mid-stories with limited herbaceous understories
during portions of the timber rotation. Site preparation for planting
of pine plantations sometimes involves clearing of downed logs and
stumps, thereby interfering with the natural development of stump holes
and root channels through decay or from burning, and greatly reducing
the availability of suitable refugia (Rudolph et al. 2007, p. 563).
This could have negative consequences if the pinesnakes are no longer
able to locate a previous year's refugium, and are subject to
overexposure from thermal extremes or elevated predation risk while the
snakes are above ground searching for suitable shelter. Black
pinesnakes have persisted in those areas of pine forest, composed of
both longleaf pine and other pine species, where the forest structure
approximates that which occurred historically in longleaf pine forests,
as described above. However, conservation of black pinesnakes requires
the long-term availability of these forest structure habitat features,
not just in the landscape, but within the subspecies' activity range.
If they are required to move from area to area with the change in
habitat conditions, as would likely occur on a pine plantation, their
fitness and long-term survival will be in question (Yager et al. 2006,
pp. 34-36).
When a site is converted to agriculture, all vegetation is cleared
and underground refugia are destroyed during soil disking and
compaction. Forest management strategies, such as fire suppression (see
discussion under Factor E: Other Natural or Manmade Factors Affecting
Its Continued Existence), increased stocking densities, densely
planting off-site pine species (i.e., slash and loblolly pines),
bedding, and removal of whole trees during harvesting (including downed
trees and stumps), all contribute to degradation of habitat attributes
preferred by black pinesnakes. It is likely that the diminishing
presence and distribution of decaying stump holes and their associated
rotting root channels may be a feature that limits the abundance of
black pinesnakes within their range (Baxley 2007, p. 44).
Baxley et al. (2011, pp. 162-163) compared habitat at recent (post-
1987) and historical (pre-1987) black pinesnake localities. She found
that sites recently occupied by black pinesnakes were characterized by
significantly less canopy cover; lower basal area; less midstory cover;
greater percentages of grass, bare soil, and forbs in the groundcover;
less shrubs and litter in the groundcover; and a more recent burn
history than currently unoccupied, historical sites. At the landscape
level, black pinesnakes selected upland pine forests that lacked
cultivated crops, pasture and hay fields, developed areas, and roads
(Baxley et al. 2011, p. 154). Thus, areas historically occupied by
black pinesnakes are becoming unsuitable at both the landscape and
microhabitat (small-scale habitat component) levels (Baxley et al.
2011, p. 164).
Degradation and loss of longleaf pine habitat (e.g., sandy, well-
drained soils with an open-canopied overstory of longleaf pine, a
reduced shrub layer, and a dense herbaceous ground cover) within the
range of the black pinesnake is continuing. The coastal counties of
southern Mississippi and Mobile County, Alabama, are being developed at
a rapid rate due to increases in the human population. While forecast
models show that Federal forest land will remain relatively unchanged
overall in the next few decades, projected losses in forest land are
highest in the South, with declines in private forest land from
urbanization accounting for most of the loss (Wear 2011, p. 31).
Habitat fragmentation within the longleaf pine ecosystem threatens
the continued existence of all black pinesnake populations,
particularly those on private lands. This is frequently the result of
urban development, conversion of longleaf pine sites to densely stocked
pine plantations, and the associated increases in number of roads. When
patches of available habitat become separated beyond the dispersal
range of a species, populations are more sensitive to genetic,
demographic, and environmental variability, and extinction becomes
possible. This is likely a primary cause for the extirpation of the
black pinesnake in Louisiana and the subspecies' contracted range in
Alabama and Mississippi (Duran and Givens 2001, pp. 22-26).
Private landowners hold more than 86 percent of forests in the
South and produce nearly all of the forest investment and timber
harvesting in the region (Wear and Greis 2013, p. 103). Forecasts
indicate a loss of 11 to 23 million ac (4.5 million to 9.3 million ha)
of private forest land in the South by 2060. This loss, combined with
expanding urbanization in many areas and ongoing splitting of land
ownership as estates are divided, will result in increased
fragmentation of remaining forest holdings (Wear and Greis 2013, p.
119). This assessment of continued future fragmentation throughout the
range of the black pinesnake, coupled with the assumption that large
home range size increases extinction vulnerability, emphasizes the
importance of conserving and managing large tracts of contiguous
habitat to protect the black pinesnake (Baxley 2007, p. 65). This is in
agreement with other studies of large, wide-ranging snake species
sensitive to landscape fragmentation (Hoss et al. 2010; Breininger et
al. 2012). When factors influencing the home range sizes of the
threatened eastern indigo snake (Drymarchon corais couperi) were
analyzed, the results suggested that
[[Page 60482]]
maintaining populations of this subspecies will require large
conservation areas with minimum fragmentation (Breininger et al. 2011,
pp. 484-490).
Impacts from urbanization are not consistent throughout the
Southeast, and some parts of Mississippi and Alabama may actually
experience human population declines (Wear and Greis 2013, p. 21);
however, the most recent assessment still predicts increased change in
urban land use in the next 45 years in most of the counties occupied by
the black pinesnake (Klepzig et al. 2014, p. 23). Urbanization appears
to have reduced historical black pinesnake populations in Mobile County
by approximately 50 percent (Duran 1998a, p. 17), to the point where
pinesnakes are thought to be extirpated from some areas directly
surrounding Mobile (Nelson and Bailey 2004, p. 44). Substantial
population declines were noted throughout the 1970s and 1980s (Mount
1986, p. 35). Jennings and Fritts (1983, p. 8) reported that, in the
1980s, the black pinesnake was one of the most frequently encountered
snakes on the Environmental Studies Center (Center) in Mobile County.
Urban development has now engulfed lands adjacent to the Center, and
black pinesnakes are thought to likely have been extirpated from the
property (Duran 1998a, p. 10). Black pinesnakes were commonly seen in
the 1970s on the campus of the University of South Alabama in western
Mobile; however, there have not been any observations in at least the
past 25 years (Nelson 2014, p. 1).
Populations on the periphery of the range have conservation value
in terms of maintaining the subspecies' genetic integrity (i.e.,
maintaining the existing genetic diversity still inherent in
populations that have not interbred in hundreds or thousands of years),
providing future opportunities for population connectivity and
augmentation, and contributing to important ecosystem functions (such
as maintaining rodent populations) in the ecological communities where
they occur (Steen and Barrett 2015, p. 1). Many of the populations on
the edge of the range are smaller, which increases their susceptibility
to localized extinction from catastrophic and stochastic events,
subsequently causing further restriction of the subspecies' range.
Additionally, the footprint of longleaf pine in the Southeast has gone
through substantial contraction recently (Oswalt et al. 2015, p. 504),
creating even higher susceptibility for these peripheral populations.
Although the black pinesnake was thought to be fairly common in parts
of south Alabama as recently as 30 years ago, we believe many
populations have disappeared or drastically declined due to continued
habitat loss and fragmentation. For instance, several sites where
snakes have been captured historically are now developed and no longer
contain habitat.
Conservation Efforts To Reduce Habitat Destruction, Modification, or
Curtailment of Its Range
When considering whether or not to list a species under the Act, we
must identify existing conservation efforts and their effect on the
species.
The largest known populations of black pinesnakes (5 of 11) occur
in the De Soto NF, which is considered the core of the subspecies'
known range. The black pinesnake likely receives benefit from longleaf
pine restoration efforts, including prescribed fire, implemented by the
U.S. Forest Service in accordance with its Forest Plan, in habitats for
the federally listed gopher tortoise, dusky gopher frog, and red-
cockaded woodpecker. (USDA 2014, pp. 60-65). Within the recently
revised Forest Plan, black pinesnakes are included on lists of species
dependent on fire to maintain habitat, species sensitive to
recreational traffic, species that are stump and stump-hole associates,
and species sensitive to soil disturbance (USDA 2014, Appendix G-85, G-
92, G-100). The management strategies described within the Forest Plan
provide general guidance that states project areas should be reviewed
to determine if such species do occur and if so to develop mitigation
measures to ensure sustainability of the species, such as, in general,
not removing dead and downed logs or other woody debris from rare
communities.
The MSARNG updated its INRMP in 2014, and outlined conservation
measures to be implemented specifically for the black pinesnake on
lands owned by the DoD and the State of Mississippi on Camp Shelby.
Planned conservation measures include: Supporting research and surveys
on the subspecies; habitat management specifically targeting the black
pinesnake, such as retention of pine stumps and prescribed burning; and
educational programs for users of the training center to minimize
negative impacts of vehicular mortality on wildlife (MSARNG 2014, pp.
93-94). However, the INRMP addresses integrative management and
conservation measures only on the lands owned and managed by DoD and
the State of Mississippi (15,195 ac (6,149 ha)), which make up
approximately 10 percent of the total acreage of Camp Shelby (132,195
ac (53,497 ha)). Most of this land is leased to DoD and owned by the
Forest Service, which manages the land in accordance with its Forest
Plan (see explanation above). Only 5,735 ac (2,321 ha) of the acreage
covered by the INRMP provides habitat for the black pinesnake.
Longleaf pine habitat restoration projects have been conducted on
selected private lands within the range historically occupied by the
black pinesnake and likely provide benefits to the subspecies (U.S.
Fish and Wildlife Service 2012, pp. 12-13). Additionally, restoration
projects have been conducted on wildlife management areas (WMAs)
(Marion County WMA in Mississippi; Scotch, Fred T. Stimpson, and the
area formerly classified as the Boykin WMAs in Alabama) occupied by or
within the range of the black pinesnake, and on three gopher tortoise
relocation areas in Mobile County, Alabama. The gopher tortoise
relocation areas are managed for the open-canopied, upland longleaf
pine habitat used by both gopher tortoises and black pinesnakes, and
there have been recent records of black pinesnakes on the properties;
however, the managed areas are all less than 700 ac (283 ha) and
primarily surrounded by urban areas with incompatible habitat.
Therefore, we do not believe they would provide sufficient area to
support a black pinesnake population long term. Furthermore, although
there is beneficial habitat management occurring on some of these WMAs
and on the tortoise relocation areas, these efforts do not currently
target the retention or restoration of black pinesnake habitat, which
would include management targeted to maintain larger, unfragmented
tracts of open longleaf habitat. Stump removal still occurs within the
range of the subspecies and is particularly problematic as it removes
refugia habitat for the subspecies. We will continue to work with our
State and private partners to encourage the incorporation of these
practices, where appropriate.
Summary of Factor A
In summary, the loss and degradation of habitat was a significant
historical threat, and remains a current threat, to the black
pinesnake. The historical loss of habitat within the longleaf pine
ecosystem occupied by black pinesnakes occurred primarily due to timber
harvest and subsequent conversion of pine forests to agriculture,
residential development, and intensively managed pine plantations. This
loss of habitat has slowed
[[Page 60483]]
considerably in recent years, in part due to efforts to restore the
longleaf pine ecosystem in the Southeast. However, habitat loss is
continuing today due to due to incompatible forestry practices,
conversion to agriculture, and urbanization, which result in increasing
habitat fragmentation (see discussion under Factor E: Other Natural or
Manmade Factors Affecting Its Continued Existence). While the use of
prescribed fire for habitat management and more compatible site
preparation has seen increased emphasis in recent years, expanded
urbanization, fragmentation, and regulatory constraints will continue
to restrict the use of fire and cause further habitat degradation (Wear
and Greis 2013, p. 509). Conservation efforts are implemented or
planned that should help maintain black pinesnake habitat on Camp
Shelby and the De Soto NF; however, these areas represent a small
fraction of the current range of the subspecies.
Impacts from urbanization are not consistent throughout the
Southeast, and some parts of Mississippi and Alabama may actually
experience human population declines (Wear and Greis 2013, p. 21);
however, the most recent assessment still predicts increased change in
urban land use in the next 45 years in most of the counties occupied by
the subspecies (Klepzig et al. 2014, p. 23). Smaller populations on the
edge of the range are more susceptible to localized extinction from
catastrophic and stochastic events. Additionally, the footprint of
longleaf pine in the Southeast has gone through substantial contraction
recently (Oswalt et al. 2015, p. 504), creating even higher
susceptibility for these peripheral populations. Thus, habitat loss and
continuing degradation of the black pinesnake's habitat remains a
significant threat to this subspecies' continued existence.
Factor B: Overutilization for Commercial, Recreational, Scientific, or
Educational Purposes
Although there is some indication that collection for the pet trade
may have been a problem (Duran 1998a, p. 15), and that localized
accounts of a thriving pet trade for pinesnakes have been reported
previously around Mobile, Alabama (Vandeventer and Young 1989, p. 34),
direct take of black pinesnakes for recreational, scientific, or
educational purposes is not currently considered to be a significant
threat. This overutilization would be almost exclusively to meet the
demand from snake enthusiasts and hobbyists; however, the pet trade is
currently saturated with captive-bred black pinesnakes (Vandeventer in
litt. 2014). The need for the collection of wild specimens is thought
to have declined dramatically from the levels previously observed in
the 1960s and 1970s (Vandeventer in litt. 2014). Though concern has
been expressed that Federal listing may increase the demand for wild-
caught animals (McNabb in litt. 2014), based on current information we
have determined that overutilization for commercial, recreational,
scientific, or educational purposes is not a threat to the black
pinesnake at this time.
Factor C: Disease or Predation
Snake fungal disease (SFD) is an emerging disease in certain
populations of wild snakes, though specific pathological criteria for
the disease have not yet been established. The disease has been linked
to mortality events for other species, but has not yet been documented
in Pituophis or in any of the States within the range of the black
pinesnake. While it is suspected of threatening small, isolated
populations of susceptible snake species, we currently have no evidence
it is affecting the black pinesnake. We know of no other diseases that
are affecting the subspecies, and, therefore, disease is not presently
considered a threat to the black pinesnake.
Red imported fire ants (Solenopsis invicta), an invasive species,
have been implicated in trap mortalities of black pinesnakes during
field studies (Baxley 2007, p. 17). They are also potential predators
of black pinesnake eggs, especially in disturbed areas (Todd et al.
2008, p. 544), and have been documented predating snake eggs under
experimental conditions (Diffie et al. 2010, p. 294). In 2010 and 2011,
trapping for black pinesnakes was conducted in several areas that were
expected to support the subspecies; no black pinesnakes were found, but
high densities of fire ants were reported (Smith 2011, pp. 44-45).
However, the severity and magnitude of effects, as well as the long-
term effects, of fire ants on black pinesnake populations are currently
unknown.
Other potential predators of pinesnakes include red-tailed hawks,
raccoons, skunks, red foxes, and feral cats (Ernst and Ernst 2003, p.
284; Yager et al. 2006, p. 34). Lyman et al. (2007, p. 39) reported an
attack on a black pinesnake by a stray domestic dog, which resulted in
the snake's death. Several of these mammalian predators are
anthropogenically enhanced (urban predators); that is, their numbers
often increase with human development adjacent to natural areas
(Fischer et al. 2012, pp. 810-811). However, the severity and magnitude
of predation by these species are unknown.
In summary, disease is not considered to be a threat to the black
pinesnake at this time. However, predation by fire ants and urban
predators may represent a threat to the black pinesnake.
Factor D: The Inadequacy of Existing Regulatory Mechanisms
In Mississippi, the black pinesnake is classified as endangered by
the Mississippi Department of Wildlife, Fisheries and Parks
(Mississippi Museum of Natural Science 2001, p. 1). In Alabama, the
pine snake (Pituophis melanoleucus spp.) is protected as a non-game
animal (Alabama Department of Conservation and Natural Resources 2014,
p. 1), and in the 2015 draft of the Alabama Comprehensive Wildlife
Conservation Strategy, the black pinesnake is identified as a Priority
1, Species of Greatest Conservation Need (ADCNR 2015, p. 297). In
Louisiana, the black pinesnake is considered extirpated (Louisiana
Department of Wildlife and Fisheries (LDWF) 2014, p. 2; Anthony in
litt. 2015); however, Louisiana Revised Statutes for Wildlife and
Fisheries were recently amended to prohibit killing black pinesnakes or
removing them from the wild without a permit from the LDWF (Louisiana
Administrative Code, 2014, p. 186), should they be found in the State
again. Both Mississippi and Alabama have regulations that restrict
collecting, killing, or selling of the subspecies, but do not have
regulations addressing habitat loss, which has been the primary cause
of decline of this subspecies.
Where the subspecies co-occurs with species already listed under
the Act, the black pinesnake likely receives ancillary benefits from
the protective measures for the already listed species, including the
gopher tortoise, dusky gopher frog, and red-cockaded woodpecker.
The largest known expanses of suitable habitat for the black
pinesnake are in the De Soto NF in Mississippi. The black pinesnake's
habitat is afforded some protection under the National Forest
Management Act (NFMA; 16 U.S.C. 1600 et seq.) where it occurs on lands
managed by the Forest Service that are occupied by federally listed
species such as the gopher tortoise and red-cockaded woodpecker. Forest
Service rules and guidelines implementing NFMA require land management
plans that include provisions supporting recovery of endangered and
threatened species. As a result, land managers on the De Soto NF have
conducted management actions, such as prescribed burning and
[[Page 60484]]
longleaf pine restoration, which benefit gopher tortoises, red-cockaded
woodpeckers, and black pinesnakes. Within the recently revised Forest
Plan, black pinesnakes are included on lists of species dependent on
fire to maintain habitat, species sensitive to recreational traffic,
species that are stump and stump-hole associates, and species sensitive
to soil disturbance (USDA 2014, Appendix G-85, G-92, G-100). The
management strategies described within the Forest Plan provide general
guidance that states project areas should be reviewed to determine if
such species do occur and if so to develop mitigation measures to
ensure sustainability of the subspecies, such as, in general, not
removing dead and downed logs or other woody debris from rare
communities.
As discussed under Factor A above, the MSARNG recently updated its
INRMP for Camp Shelby, and outlined conservation measures to be
implemented specifically for the black pinesnake on 5,735 ac (2,321 ha)
of potential pinesnake habitat owned or managed by DoD. These measures
will benefit black pinesnake populations, and include a monitoring
protocol to help evaluate the population and appropriate guidelines for
maintaining suitable habitat and microhabitats.
In summary, outside of the National Forest and the area covered by
the INRMP, existing regulatory mechanisms provide little protection
from the primary threat of habitat loss for the black pinesnake.
Longleaf restoration activities on Forest Service lands in Mississippi
conducted for other federally listed species do improve habitat for
black pinesnake populations located in those areas, but could be
improved by ensuring the protection of the belowground refugia critical
to the snake. We will continue to work with the Forest Service to
design and implement a more aggressive strategy for protecting and
monitoring the black pinesnake.
Factor E: Other Natural or Manmade Factors Affecting Its Continued
Existence
Fire is the preferred management technique to maintain the longleaf
pine ecosystem, and fire suppression has been considered a primary
reason for the degradation of the remaining longleaf pine forest. It is
a contributing factor in reducing the quality and quantity of available
habitat for the black pinesnake. According to Wear and Greis (2013, p.
509), southern forests are likely to see increasing challenges to
prescribed burning in the future as land-use changes involving fuels
management, increased urban interface, and revised safety and health
regulations will continue to constrain prescribed fire efforts. Some of
these constraints could be in the form of reduced fire intervals or
reductions in average area burned per fire event (strategies often used
in management of pine plantations), which may not provide adequate fire
intensity or frequency to suppress the overgrown understory and mid-
story conditions that black pinesnakes are known to avoid (Duran 1998b,
p. 32). During a 2005 study using radio-telemetry to track black
pinesnakes, a prescribed burn bisected the home range of one of the
study animals. The snake spent significantly more time in the recently
burned area than in the area that had not been burned in several years
(Smith 2005, 5 pp.).
Roads surrounding and traversing the remaining black pinesnake
habitat pose a direct threat to the subspecies. Dodd et al. (2004, p.
619) determined that roads fragment habitat for wildlife. Population
viability analyses have shown that road mortality estimates in some
snake species have greatly increased extinction probabilities (Row et
al. 2007, p. 117). In an assessment of data from radio-tracked eastern
indigo snakes, it was found that adult snakes have relatively high
survival in conservation core areas, but greatly reduced survival in
edges of these areas along highways, and in suburbs (Breininger et al.
2012, p. 361). Clark et al. (2010, pp. 1059-1069) studied the impacts
of roads on population structure and connectivity in timber
rattlesnakes (Crotalus horridus). They found that roads interrupted
dispersal and negatively affected genetic diversity and gene flow among
populations of this large snake (Clark et al. 2010, p. 1059). In a
Texas snake study, an observed deficit of snake captures in traps near
roads suggests that a substantial proportion of the total number of
snakes may have been eliminated due to road-related mortality and that
populations of large snakes may be depressed by 50 percent or more due
to this mortality (Rudolph et al. 1999, p. 130).
Black pinesnakes frequent the sandy hilltops and ridges where roads
are most frequently sited. Even on public lands, roads are a threat.
During Duran's (1998b pp. 6, 34) study on Camp Shelby, Mississippi, 17
percent of the black pinesnakes with transmitters were killed while
attempting to cross a road. In a larger study currently being conducted
on Camp Shelby, 14 (38 percent) of the 37 pinesnakes found on the road
between 2004 to 2012 were found dead, and these 14 individuals
represent about 13 percent of all the pinesnakes found on Camp Shelby
during that 8-year span (Lyman et al. 2012, p. 42). The majority of
road crossings occurred between the last 2 weeks of May and the first 2
weeks of June (Lyman et al. 2011, p. 48), a time period when black
pinesnakes are known to breed (Lyman et al. 2012, p. 42). In the study
conducted by Baxley (2007, p. 83) on De Soto NF, 2 of the 8 snakes
monitored with radio-transmitters were found dead on paved roads. This
is an especially important issue on these public lands because the best
remaining black pinesnake populations are concentrated there. It
suggests that population declines may be due in part to adult mortality
in excess of annual recruitment (Baxley and Qualls 2009, p. 290).
Additional support for the threat of fragmentation by roads is
presented by Steen et al. (2012, p. 1092) who suggested that their
modelling study of habitat loss and degradation in snakes provided
evidence that fragmentation by roads may be an impediment to
maintaining viable populations of pinesnakes.
Exotic plant species degrade habitat for wildlife. In the
Southeast, longleaf pine forest associations are susceptible to
invasion by the exotic cogongrass (Imperata cylindrica), which may
rapidly encroach into areas undergoing habitat restoration, and is very
difficult to eradicate once it has become established, requiring
aggressive control with herbicides (Yager et al. 2010, pp. 229-230).
Cogongrass displaces native grasses, greatly reducing foraging areas,
and forms thick mats so dense that ground-dwelling wildlife has
difficulty traversing them (DeBerry and Pashley 2008, p. 74).
In many parts of Louisiana, Mississippi, and Alabama, there is a
lack of understanding of the importance of snakes to a healthy
ecosystem. Snakes are often killed intentionally when they are
observed, and dead pinesnakes have been found that were shot (Duran
1998b, p. 34). Lyman et al. (2008, p. 34) and Duran (1998b, p. 34) both
documented finding dead black pinesnakes that were intentionally run
over, as evidenced by vehicle tracks that went off the road in vicinity
of dead snakes. In addition, in one of these instances (Lyman et al.
2008, p. 34), footprints were observed going from the vicinity of the
truck to the snake's head, which had been intentionally crushed. As
development pressures mount on remaining black pinesnake habitat,
human-snake interactions are expected to increase, which in turn is
expected to increase mortality, especially of adults.
[[Page 60485]]
Questionnaires have shown that snakes are more likely to be
intentionally run over than any other animal (Langley et al. 1989, p.
43), and black pinesnakes represent a large target as they attempt to
cross roads, which may increase the frequency of deliberate killing
(Whitaker and Shine 2000, p. 121).
On many construction project sites, erosion control blankets are
used to lessen impacts from weathering, secure newly modified surfaces,
and maintain water quality and ecosystem health. However, this
polypropylene mesh netting (also often utilized for bird exclusion) has
been documented as being an entanglement hazard for many snake species,
causing lacerations and sometimes mortality (Stuart et al. 2001, pp.
162-163; Barton and Kinkead 2005, p. 34A; Kapfer and Paloski 2011, p.
1). This netting often takes years to decompose, creating a long-term
hazard to snakes, even when the material has been discarded (Stuart et
al. 2001, p. 163). Although no known instance of injury or death from
this netting has been documented for black pinesnakes, it has been
demonstrated to have negative impacts on other terrestrial snake
species of all sizes and thus poses a potential threat to the black
pinesnake when used in its habitat.
Duran (1998b, p. 36) suggested that reproductive rates of wild
black pinesnakes may be low, based on failure to detect either nests or
mating behaviors as observed during his studies. This observation has
not been corroborated in the literature for other Pituophis species;
however, if low reproductive rates were common, it would inhibit
conservation and recovery.
Random environmental events may also play a part in the decline of
the black pinesnake. Two black pinesnakes were found dead on the De
Soto NF during drought conditions of mid-summer and may have succumbed
due to drought-related stress (Baxley 2007, p.41).
In summary, a variety of natural or manmade factors currently
threaten the black pinesnake. Fire suppression has been considered a
primary reason for degradation of the longleaf pine ecosystem; however,
invasive species such as cogongrass also greatly reduce the habitat
quality for the black pinesnake. Isolation of populations beyond the
dispersal range of the subspecies is a serious threat due to the
fragmentation of available habitat. The high percentage of radio-
tracked black pinesnakes killed while trying to cross roads supports
our conclusion that this is a serious threat, while human attitudes
towards snakes represent another source of mortality. Stochastic
threats such as drought have the potential to threaten black pinesnake
populations, especially considering the possibility of more drastic
thermal extremes due to climate change, and the suspected low
reproductive rate of the subspecies could exacerbate other threats and
limit population viability. Overall, the threats under Factor E may act
in combination with threats listed above under Factors A through D and
increase their severity.
Determination
We have carefully assessed the best scientific and commercial
information available regarding the past, present, and future threats
to the black pinesnake. The black pinesnake is considered extirpated
from Louisiana and three counties in Mississippi. Threats to the
remaining black pinesnake populations exist primarily from two of the
five threat factors (Factors A and E); however, predation by fire ants
and urban predators (Factor C), and limitations of existing laws and
regulations (Factor D) also pose lower-magnitude threats to the
subspecies. Potential threats such as snake fungal disease (Factor C)
and entanglement in erosion control blankets (Factor E) represent
documented sources of mortality in other snake species, but there is no
evidence yet that these have caused mortality in black pinesnakes.
Threats also occur in combination, resulting in synergistically
greater effects. Threats of habitat loss and degradation (Factor A)
represent primary threats to the black pinesnake. While habitat
restoration efforts are beginning to reverse the decline of the
longleaf pine forest in parts of the southeastern United States, most
of the black pinesnake's original habitat has been either converted
from forests to other uses or is highly fragmented. Today, the longleaf
pine ecosystem occupies less than 4 percent of its historical range,
and the black pinesnake has been tied directly to this ecosystem. Much
of the habitat outside of the De Soto National Forest in Mississippi
(the core of the range) has become highly fragmented, and populations
on these lands appear to be small and isolated on islands of suitable
longleaf pine habitat (Duran 1998a, p. 17; Barbour 2009, pp. 6-13).
A habitat suitability study of all historical sites for the black
pinesnake estimated that this subspecies likely no longer occurs in an
estimated 60 percent of historical population segments. It is estimated
that only 11 populations of black pinesnakes are extant today, of which
about a third are located on isolated patches of longleaf pine habitat
that continue to be degraded due to fire suppression and fragmentation
(Factor E), incompatible forestry practices, and urbanization.
Threats under Factor E include fire suppression; roads; invasive
plant species, such as cogongrass; random environmental events, such as
droughts; and intentional killing by humans. Fire suppression and
invasive plants result in habitat degradation. Roads surround and
traverse the upland ridges, which are primary habitat for the black
pinesnake, and these roads cause further fragmentation of the remaining
habitat. In addition, roads also increase the rate of human-snake
interactions, which likely result in the death of individual snakes.
Vehicles travelling these roads cause the deaths of a substantial
number of snakes. These threats in combination lead to an increased
chance of local extirpations by making populations more sensitive to
genetic, demographic, and environmental variability. This is especially
true of populations on the periphery of the range, where smaller
populations are considerably more vulnerable to the documented
contraction of the longleaf pine ecosystem, and where stochastic events
are more likely to cause further restrictions of the range of the black
pinesnake.
Habitat loss has been extensive throughout the black pinesnake's
range, and the remaining habitat has been fragmented into primarily
small patches with barriers to dispersal between them, creating
reproductively isolated individuals or populations. The inadequacy of
laws and regulations protecting against habitat loss contributes to
increases in urbanization and further fragmentation. Urbanization
results in an increased density of roads, intensifying the potential
for direct mortality of adult snakes and reductions in population
sizes. Reductions in habitat quality and quantity have synergistic
effects that may eventually cause localized extirpations. Threats to
the black pinesnake, working individually or in combination, are
ongoing and significant and have resulted in curtailment of the range
of the subspecies.
The Act defines an endangered species as any species that is ``in
danger of extinction throughout all or a significant portion of its
range'' and a threatened species as any species ``that is likely to
become endangered throughout all or a significant portion of its range
within the foreseeable future.'' We find that the black pinesnake meets
the definition of a threatened species
[[Page 60486]]
based on the immediacy, severity, and scope of the threats described
above.
We find that endangered status is not appropriate for the black
pinesnake because, while we found the threats to the subspecies to be
significant and rangewide, we believe it is unlikely that the threats
will act on the subspecies in a way that place the subspecies in danger
of extinction throughout all or a significant portion of its range.
About half of the remaining black pinesnake populations occur primarily
on public lands that are at least partially managed to protect
remaining longleaf pine habitat. Management efforts on those lands
specifically targeting listed longleaf pine specialists, such as the
gopher tortoise and red-cockaded woodpecker, should benefit the black
pinesnake as well, especially if measures are employed to protect
belowground refugia. Additionally, the 5,735 ac (2,321 ha) of suitable
pinesnake habitat covered by the Camp Shelby INRMP are under a
conservation plan whose objectives include specifically protecting
black pinesnake microhabitats and increasing awareness of the human
impacts to rare wildlife. Thus, although there is a general decline in
the overall range of the subspecies and its available habitat, range
contraction is not severe enough to indicate imminent extinction
because of these existing efforts on public land and other ongoing
restoration activities. Therefore, on the basis of the best available
scientific and commercial information, we are listing the black
pinesnake as threatened in accordance with sections 3(20) and 4(a)(1)
of the Act.
Significant Portion of the Range
Under the Act and our implementing regulations, a species may
warrant listing if it is endangered or threatened throughout all or a
significant portion of its range. Because we have determined that black
pinesnake is threatened throughout all of its range, no portion of its
range can be ``significant'' for purposes of the definitions of
``endangered species'' and ``threatened species.'' See the Final Policy
on Interpretation of the Phrase ``Significant Portion of Its Range'' in
the Endangered Species Act's Definitions of ``Endangered Species'' and
``Threatened Species'' (79 FR 37578; July 1, 2014).
Available Conservation Measures
Other conservation measures provided to species listed as
endangered or threatened under the Act include recognition, recovery
actions, requirements for Federal protection, and prohibitions against
certain practices. Recognition through listing results in public
awareness, and conservation by Federal, State, Tribal, and local
agencies; private organizations; and individuals. The Act encourages
cooperation with the States and requires that recovery actions be
carried out for all 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 requires 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 identifies site-
specific management actions that set a trigger for review of the five
factors that control whether a species remains endangered or may be
downlisted or delisted, 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 will be available on our Web site (https://www.fws.gov/endangered), or from our Mississippi Ecological Services Field 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.
Following publication of this final listing rule, 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 States of Alabama,
Louisiana, and Mississippi would be eligible for Federal funds to
implement management actions that promote the protection or recovery of
the black pinesnake. Information on our grant programs that are
available to aid species recovery can be found at https://www.fws.gov/grants.
Please let us know if you are interested in participating in
recovery efforts for the black pinesnake. Additionally, we invite you
to submit any new information on this subspecies 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 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. 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 subspecies' habitat that may
require conference or consultation or both as described in the
preceding paragraph include management and any other landscape-altering
activities on Federal lands administered by the Forest Service or on
National Wildlife Refuges
[[Page 60487]]
managed by the Service; issuance of section 404 Clean Water Act (33
U.S.C. 1251 et seq.) permits by the U.S. Army Corps of Engineers;
construction and maintenance of gas pipeline and power line rights-of-
way by the Federal Energy Regulatory Commission; construction and
maintenance of roads or highways by the Federal Highway Administration;
land management practices supported by programs administered by the
U.S. Department of Agriculture; Environmental Protection Agency
pesticide registration; and projects funded through Federal loan
programs, which may include, but are not limited to, roads and bridges,
utilities, recreation sites, and other forms of development.
4(d) Rule
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 wildlife. We may also prohibit by regulation
with respect to threatened wildlife any act prohibited by section
9(a)(1) of the Act for endangered wildlife. For the black pinesnake,
the Service has developed a 4(d) rule that is tailored to the specific
threats and conservation needs of this subspecies. Exercising this
discretion, the Service has developed a 4(d) rule containing all the
general prohibitions and exceptions to those prohibitions; these are
found at 50 CFR 17.31 and 50 CFR 17.32. However, as a means to promote
conservation efforts on behalf of the black pinesnake, we are
finalizing a 4(d) rule for this subspecies that modifies the standard
protection for threatened wildlife found at 50 CFR 17.31. In the case
of a 4(d) rule, the general regulations (50 CFR 17.31 and 17.71)
applying most prohibitions under section 9 of the Act to threatened
species do not apply to that species, and the 4(d) rule contains the
prohibitions necessary and advisable to conserve that species.
As discussed in the Summary of Factors Affecting the Species
section of this rule, the primary threat to this subspecies is the
continuing loss and degradation of the open pine forests habitat (e.g.,
the longleaf pine ecosystem), which requires active management to
ensure appropriate habitat conditions are present. Therefore, for the
black pinesnake, the Service has determined that exemptions authorized
under section 4(d) of the Act are appropriate to promote conservation
of this subspecies. Foremost in the degradation of this habitat is the
decline or absence of prescribed fire, as fire is the primary source of
historical disturbance and maintenance, reduces mid-story and
understory hardwoods, and promotes abundant native herbaceous
groundcover in the natural communities of the longleaf pine ecosystem
where the black pinesnake normally occurs. We recognize that forest
management activities such as thinning, reforestation and
afforestation, mid-story and understory vegetation management, and
final harvest (particularly in stands with undesirable conditions) are
often needed to maintain and/or restore forests to the conditions that
are preferable to black pinesnakes. The primary habitat features that
require protection in this ecosystem are the burned-out or naturally
decayed pine stump holes that are heavily utilized by black pinesnakes,
in association with the development of the herbaceous plant community
that provides habitat and forage for prey. Therefore, activities
causing significant subsurface disturbance (like those listed below
under 3(b)) will not be exempted as these actions are detrimental to
maintenance and development of stump holes and root channels critical
to this subspecies. Another factor affecting the integrity of this
ecosystem is the infestation of invasive plants, particularly
cogongrass. Activities such as prescribed burning and invasive weed
control, as well as forest management activities associated with
restoring and maintaining the natural habitat to meet the needs of the
black pinesnake, positively affect pinesnake habitat and provide an
overall conservation benefit to the subspecies.
Provisions of the 4(d) Rule
See Summary of Changes to the Proposed Rule, above, for changes to
the 4(d) rule based on information we received during the public
comment period.
This 4(d) rule exempts from the general prohibitions at 50 CFR
17.31 take incidental to the following activities when conducted within
habitats currently or historically occupied by the black pinesnake:
(1) Prescribed burning, including all fire break establishment and
maintenance actions, as well as actions taken to control wildfires.
(2) Herbicide application for invasive plant species control, site-
preparation, and mid-story and understory woody vegetation control. All
exempted herbicide applications must be conducted in a manner
consistent with Federal law, including Environmental Protection Agency
label restrictions; applicable State laws; and herbicide application
guidelines as prescribed by herbicide manufacturers.
(3) All forest management activities that maintain lands in a
forested condition, except for: (a) Conversion of longleaf-pine-
dominated forests (>51 percent longleaf in the overstory) to other
forest cover types or land uses; or (b) those activities causing
significant subsurface disturbance, including, but not limited to,
shearing, wind-rowing, stumping, disking (except during fire break
creation or maintenance), root-raking, and bedding.
We believe these actions and activities, while they may have some
minimal level of harm or temporary disturbance to the black pinesnake,
are not expected to adversely affect the subspecies' conservation and
recovery efforts. They will have a net beneficial effect on the
subspecies. When practicable and to the extent possible, the Service
encourages managers to conduct the activities listed above in a manner
to: Maintain suitable black pinesnake habitat in large tracts; minimize
ground and subsurface disturbance; promote a diverse, abundant native
herbaceous groundcover; and allow for the natural decay or burning of
pine stumps. It should be noted that harvest of longleaf pine (and
other species) is included in the exemption, as long as the longleaf
pine forests are not converted to other forest cover types. Should
landowners undertake activities in these areas (e.g., such as
converting from longleaf to loblolly) that are not covered by the
exemptions above and are likely to result in take (as described below),
they would need to consult with the Service to find ways to minimize
impacts to the subspecies before proceeding with the activity.
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. With regard to
threatened wildlife, a permit may be issued for the following purposes:
For scientific purposes, to enhance the propagation or survival of the
subspecies, for economic hardship, for zoological exhibition, for
educational purposes, and for incidental take in connection with
otherwise lawful activities. 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
[[Page 60488]]
the effect of a final listing on proposed and ongoing activities within
the range of a listed species. Based on the best available information,
the following activities may potentially result in a violation of
section 9 the Act; this list is not comprehensive:
(1) Unauthorized collecting, handling, possessing, selling,
delivering, carrying, or transporting of the black pinesnake, including
import or export 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) Introduction of nonnative species that compete with or prey
upon the black pinesnake.
(3) Unauthorized destruction or modification of occupied black
pinesnake habitat (e.g., stumping, root raking, bedding) that results
in significant subsurface disturbance or the destruction of pine stump
holes and their associated root systems used as refugia by the black
pinesnake, or that impairs in other ways the subspecies' essential
behaviors such as breeding, feeding, or sheltering; and conversion of
occupied longleaf-pine-dominated forests (>51 percent of longleaf in
the overstory) to other forest cover types or land uses.
(4) Unauthorized use of insecticides and rodenticides that could
impact small mammal prey populations, through either unintended or
direct impacts within habitat occupied by black pinesnakes.
(5) Actions, intentional or otherwise, that would result in the
destruction of eggs or cause mortality or injury to hatchling,
juvenile, or adult black pinesnakes.
Questions regarding whether specific activities would constitute a
violation of section 9 of the Act should be directed to the Mississippi
Ecological Services Field Office (see FOR FURTHER INFORMATION CONTACT).
We encourage any landowner who is concerned about potential take of the
pinesnake on their property from an action that is not covered under
the 4(d) rule to consult with the Service on conservation measures that
would avoid take or the process for obtaining an incidental take permit
under a safe harbor agreement or habitat conservation plan.
Required Determinations
National Environmental Policy Act (42 U.S.C. 4321 et seq.)
We have determined that environmental assessments and environmental
impact statements, as defined under the authority of the National
Environmental Policy Act, need not be prepared in connection with
listing a species as an endangered or threatened species under the
Endangered Species Act. We published a notice outlining our reasons for
this determination in the Federal Register on October 25, 1983 (48 FR
49244).
Government-to-Government Relationship With Tribes
In accordance with the President's memorandum of April 29, 1994
(Government-to-Government Relations with Native American Tribal
Governments; 59 FR 22951), Executive Order 13175 (Consultation and
Coordination With Indian Tribal Governments), and the Department of the
Interior's manual at 512 DM 2, we readily acknowledge our
responsibility to communicate meaningfully with recognized Federal
Tribes on a government-to-government basis. In accordance with
Secretarial Order 3206 of June 5, 1997 (American Indian Tribal Rights,
Federal-Tribal Trust Responsibilities, and the Endangered Species Act),
we readily acknowledge our responsibilities to work directly with
tribes in developing programs for healthy ecosystems, to acknowledge
that tribal lands are not subject to the same controls as Federal
public lands, to remain sensitive to Indian culture, and to make
information available to tribes. There are no tribal lands located
within the range of the subspecies.
References Cited
A complete list of references cited in this rulemaking is available
on the Internet at https://www.regulations.gov and upon request from the
Mississippi Ecological Services Field Office (see FOR FURTHER
INFORMATION CONTACT).
Authors
The primary authors of this final rule are the staff members of the
Mississippi Ecological Services Field Office.
List of Subjects in 50 CFR Part 17
Endangered and threatened species, Exports, Imports, Reporting and
recordkeeping requirements, Transportation.
Regulation Promulgation
Accordingly, we amend part 17, subchapter B of chapter I, title 50
of the Code of Federal Regulations, as follows:
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 ``Pinesnake, black'' in
alphabetical order under REPTILES to the List of Endangered and
Threatened Wildlife to read as follows:
Sec. 17.11 Endangered and threatened wildlife.
* * * * *
(h) * * *
--------------------------------------------------------------------------------------------------------------------------------------------------------
Species Vertebrate
------------------------------------------------------- population where Critical Special
Historic range endangered or Status When listed habitat rules
Common name Scientific name threatened
--------------------------------------------------------------------------------------------------------------------------------------------------------
* * * * * * *
Reptiles
* * * * * * *
Pinesnake, black................. Pituophis U.S.A. (AL, LA, MS) Entire............. T 861 NA 17.42(h)
melanoleucus
lodingi.
* * * * * * *
--------------------------------------------------------------------------------------------------------------------------------------------------------
[[Page 60489]]
0
3. Amend Sec. 17.42 by adding paragraph (h) to read as follows:
Sec. 17.42 Special rules--reptiles.
* * * * *
(h) Black pinesnake (Pituophis melanoleucus lodingi).
(1) Prohibitions. Except as noted in paragraph (h)(2) of this
section, all prohibitions and provisions of Sec. Sec. 17.31 and 17.32
apply to the black pinesnake.
(2) Exemptions from prohibitions. Incidental take of the black
pinesnake will not be considered a violation of section 9 of the Act if
the take results from:
(i) Prescribed burning, including all fire break establishment and
maintenance actions, as well as actions taken to control wildfires.
(ii) Herbicide application for invasive plant species control,
site-preparation, and mid-story and understory woody vegetation
control. All exempted herbicide applications must be conducted in a
manner consistent with Federal law, including Environmental Protection
Agency label restrictions; applicable State laws; and herbicide
application guidelines as prescribed by herbicide manufacturers.
(iii) All forest management activities that maintain lands in a
forested condition, except for:
(A) Conversion of longleaf-pine-dominated forests (>51 percent
longleaf in the overstory) to other forest cover types or land uses;
and
(B) Those activities causing significant subsurface disturbance,
including, but not limited to, shearing, wind-rowing, stumping, disking
(except during fire break creation or maintenance), root-raking, and
bedding.
* * * * *
Dated: September 28, 2015.
Stephen Guertin,
Acting Director, U.S. Fish and Wildlife Service.
[FR Doc. 2015-25270 Filed 10-5-15; 8:45 am]
BILLING CODE 4333-15-P