wp18 34 executive summary · recommendation kodiak/aleutians subsistence regional advisory council...
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WP18–34 Executive Summary
General Description Proposal WP18–34 requests that the lynx trapping season in Unit 24A be
lengthened from Nov. 1-Feb. 28 to Nov. 1-March 31. Submitted by:
Jack Reakoff of Wiseman.
Proposed Regulation Units 19, 21, and 24—Lynx
Units 19, 21, and 24 24B, 24C, and 24D—no
limit
Nov. 1-Feb. 28
Units 24A—no limit Nov. 1-March 31
OSM Preliminary
Conclusion Support
Southeast Alaska
Subsistence Regional
Advisory Council
Recommendation
Southcentral Alaska
Subsistence Regional
Advisory Council
Recommendation
Kodiak/Aleutians
Subsistence Regional
Advisory Council
Recommendation
Bristol Bay Subsistence
Regional Advisory Council
Recommendation
Yukon-Kuskokwim Delta
Subsistence Regional
Advisory Council
Recommendation
Western Interior Alaska
Subsistence Regional
Advisory Council
Recommendation
WP18–34 Executive Summary
Seward Peninsula
Subsistence Regional
Advisory Council
Recommendation
Northwest Arctic
Subsistence Regional
Advisory Council
Recommendation
Eastern Interior Alaska
Subsistence Regional
Advisory Council
Recommendation
North Slope Subsistence
Regional Advisory Council
Recommendation
Interagency Staff Committee
Comments
ADF&G Comments
Written Public Comments None
DRAFT STAFF ANALYSIS
WP18-34
ISSUES
Proposal WP18-34, submitted by Jack Reakoff of Wiseman, requests that the lynx trapping season in Unit
24A be lengthened from Nov. 1-Feb. 28 to Nov. 1-March 31.
DISCUSSION
The proponent states that the lynx population is currently under-utilized in Unit 24A, and that snowshoe
hare and lynx populations are rapidly increasing. The proponent also states that fur prices are low and that
lengthening the trapping season for lynx would provide increase harvest opportunities for Federally
qualified subsistence users. The proponent also mentions that this proposal would align the lynx trapping
season with the wolverine trapping season in Unit 24A and with the lynx trapping season in Unit 25. The
proponent claims that this would decrease user confusion and allow Federally qualified subsistence users to
avoid incidental take of lynx while targeting wolves and wolverine.
Existing Federal Regulation
Unit 19, 21, and 24—Lynx
Units 19, 21, and 24—no limit Nov. 1-Feb. 28
Proposed Federal Regulation
Units 19, 21, and 24—Lynx
Units 19, 21, and 24 24B, 24C, and 24D—no limit Nov. 1-Feb. 28
Units 24A—no limit Nov. 1-March 31
Existing State Regulation
Units 24, 25A, 25B, and 25D—Lynx
Units 24, 25A, 25B, and 25D
No limit Nov. 1 – Feb. 28
Extent of Federal Public Lands
Federal public lands comprise approximately 72% of Unit 24A, and consist of 59% Bureau of Land
Management (BLM) managed lands, 11% National Park Service (NPS) managed lands, and 2% U.S. Fish
and Wildlife Service (USFWS) managed lands (Figure 1).
Figure 1. Federal public lands in Unit 24A.
Customary and Traditional Use Determinations
The Federal Subsistence Board (Board) has not made a customary and traditional use determination for
lynx in Unit 24. Therefore, all Federally qualified subsistence users may harvest this species in this unit.
Regulatory History
In 1987, the Alaska Board of Game (BOG) adopted a “tracking harvest strategy” to manage lynx trapping
seasons in the road-connected game management units of Interior and Southcentral Alaska. Under this
strategy, lynx seasons were reduced and liberalized in response to cyclical fluctuations in lynx populations
via emergency orders (Hollis 2010). In 1995, the Board endorsed the harvest tracking concept and
temporarily adjusted the lynx trapping season via Special Action WSA95-05 to match the Emergency
Order (6/30/95) put in place by the State.
In 2001, the Board adopted Statewide Proposal WP01-44, and issued a Delegation of Authority Letter
allowing the Assistant Regional Director for the Office of Subsistence Management (OSM) to adjust lynx
trapping regulations through the use of the Alaska Department of Fish and Game (ADF&G) tracking
harvest strategy. This delegated authority required coordination with ADF&G and consultation with
appropriate Federal land management agencies.
Both the State and Federal lynx trapping seasons in Unit 24 have remained unchanged for over a decade,
with the exception of a slight modification in 2010 to include Feb. 29 in the State regulations to address user
confusion related to leap years (Pamperin 2013).
Biological Background
State management goals for lynx in Unit 24A include to “protect, maintain, and enhance the furbearer
populations and their habitats in concert with other components of the ecosystems” and to “provide for
continued use of furbearers by local Alaska residents who have customarily and traditionally depended on
these populations” (Pamperin 2013). Similarly, the State’s management objectives and activities are to
“manage furbearer populations to maintain populations at levels sufficient to provide for sustained
consumptive and nonconsumptive uses”, “to monitor harvest through fur sealing records and trapper
questionnaires”, and to “monitor furbearer populations by reconnaissance surveys, trapper questionaires,
and trapper interviews” (Pamperin 2013).
Lynx are common in Alaska (USFWS 2013, Yom-Tov et al. 2007). Snowshoe hare are the predominant
prey of lynx and are believed to comprise up to 83% of the species’ diet (Mowat and Slough 2003,
O’Donoghue et al. 1997, USFWS 2013, 2017a, b; Yom-Tov et al. 2007). As a result, lynx populations
fluctuate in direct response to changes in hare abundance (Yom-Tov et al. 2007). Snowshoe hare have a
cyclical population trend that lasts from 8-11 years and lynx population numbers fluctuate in tandem with
this trend with a lag of 1-2 years (O’Donoghue et al. 1997, USFWS 2013, 2017b; Yom-Tov et al. 2007).
Lynx populations in Unit 24 peaked in 2000 and reached a low in 2005, with the population beginning to
increase again in 2006 (Hollis 2010). Continuation of this cycle would mean that lynx populations most
likely reached their peak again in 2010, reached their low around 2015, and began to increase in numbers
around 2016 with the next population peak expected around 2020. This pattern was confirmed in an NPS
study that found that snowshoe hare populations in the Wiseman area reached a peak between 2009-2011
(DiFolco et. al. 2017). Work in the Wiseman area showed that snowshoe hares have what is known as a
“super peak”, or abnormally high population spike, every other peak cycle (Churchwell 2017, pers. comm.,
DiFolco et al. 2017). Due to lynx populations typically following the snowshoe hare population cycle, it is
expected that lynx also have modest population peaks between “super peak” cycles (Churchwell 2017, pers.
comm., DiFolco et al. 2017). According to data in the Wiseman area, showshoe hare populations are
currently rebounding, and the region is approaching a “super peak” cycle (Churchwell 2017, pers. comm.,
DiFolco et al. 2017). The snowshoe hare population is expected to crash within the next 2-3 years, which
will be followed by a crash in the lynx population in the area as well (Churchwell 2017, pers. comm,
USFWS 2017b).
Lynx typically breed in March and April (USFWS 2013). Kittens are born from late April to mid-June,
with litter sizes ranging from 1 to 6 kittens (USFWS 2013). Typically, females produce one litter per year,
but may breed a second time if the litter is lost shortly after birth. Both male and female lynx are
reproductively capable in their first year, though they rarely breed at that age. If yearling females do breed,
they consistently produce smaller litters than older females. Reproductive output slows during the low
phase of the hare cycle and there is some evidence that females may not produce a litter every year when
hares are scarce (O’Donoghue et al. 1997, USFWS 2013).
Currently, the USFWS is conducting lynx capture operations and working with partners to monitor
population fluctuations, habitat use, and movements at Tetlin National Wildlife Refuge (NWR),
Koyukuk/Nowitna/Innoko NWRs, Yukon Flats NWR, Fairbanks, Wiseman, and Kluane National Park and
Preserve (Bertram 2017, USFWS 2017a, b). This study is also meant to determine if trapping of lynx is
additive or compensatory to provide a basis for future lynx management strategies and recommendations
(USFWS 2017a, b). Snowshoe hare population monitoring has taken place in Gates of the Arctic National
Park since 1997 (DiFolco et al. 2017) and the lynx trapping and collaring portion of this study was initiated
in 2008 and then extended to Tetlin NWR, Kanuti NWR, Koyukuk NWR, and Yukon Flats NWRs in 2014
(USFWS 2017b).
Habitat
Lynx inhabit areas that are suitable for high density snowshoe hare survival (USFWS 2013). Lynx and
hares typically inhabit boreal forest areas with gently rolling terrain and dense understory vegetation and
persistent powdery snow (USFWS 2013). Mowat and Slough (2003) found that lynx in southern Yukon
preferred regenerating habitats over mature spruce stands. This could suggest that previously burned areas
provide favored habitat for lynx. Wildfire (the primary driver of boreal forest succession and habitat
heterogeneity) frequency is forecast to increase as the Arctic climate warms (Joly et al. 2012), which could
lead to more lynx and hare habitat in the region.
Cultural Knowledge and Traditional Practices
Unit 24A is situated primarily within the traditional boundaries of the Koyukon Athabascan cultural group.
Among Koyukon Athabascans, lynx are called kaazina meaning “black tail” in English (Jones 1978,
Nelson 1983). This species is considered to have a great spirit power, and women are taught that they must
speak indirectly of them using the term nodooya meaning “something going around” (Jones 1978, Nelson
1983). The Koyukon considered lynx an excellent food source, but women were strictly forbidden from
eating it as it was thought that they would lose one or more living children or experience a miscarriage.
Lynx are not considered a relative of any other animal and are said to have a type of spirit called biyeega
hoolaanh meaning “they are shadows” (Jones 1978, Nelson 1983). This spirit is thought to be rivaled only
by those of wolverine, bear, and wolves. If lynx are disrespected in any way, it was thought that the
antagonist would either become ill or never be able to harvest another lynx. A short story reiterates this
belief (Nelson 1983):
In the Distant Time, the bear and lynx were talking. The bear said that when humans began
hunting him they would have to treat him right. If he was mistreated by someone, that person
would get no bears until he had gray hairs on his head. But the lynx said that people who
mistreated him would never get a lynx again in their lives.
Koyukon trappers generally consider lynx fairly easy to catch using steel snares or traps (Nelson 1983).
Traditionally trappers would use small wooden dolls on each side of a baited snare to represent two women
that were killed in a cultural legend pertaining to this species. Trappers also often draw a face on a tree
near the traps. Use of lynx pelts among the Koyukon was limited since only men were permitted to wear
clothes made from it. Koyukon stories tell of ancient lynx that suffered from stiff joints; if boys were
allowed to wear lynx boots they were thought to later develop arthritis. Upon skinning a lynx, the leg
joints would be partially severed and the carcass (including organs that were not typically eaten) was taken
to a remote place and burned.
Today, Unit 24 is transected along its length by the James W. Dalton Highway (Dalton Highway) and
encompasses two communities, Wiseman and Coldfoot, though some residents of the unit reside in outlying
areas. Construction of the Dalton Highway was completed in 1974 but was not open to the general public
until December of 1994 (ADCCEA 2017). Coldfoot was established in the late 1890s as the result of
nearby discoveries of gold (Holen et al. 2012). The community was originally named Slate Creek but was
changed to Coldfoot in 1900, reportedly as a result of prospectors getting cold feet and returning home
(Holen et al. 2012). The population of the area was recorded as 20 in 1900 and peaked at 350 between
1902 and 1904 (Holen et al. 2012). The community was completely abandoned by 1930. There were
few intermittent residents following the abandonment but it was re-established in the 1970s as a result of the
construction of the Dalton Highway and the Trans-Alaska Pipeline. As of 2010 there were 10 reported
full-time residents of Coldfoot (ADCCEA 2017).
The original village site of Wiseman was established at the confluence of Wiseman Creek and Middle Fork
Koyukuk River in 1908 and was formerly known as Wright’s City and Nolan (Holen et al 2012, ADCCEA
2017). At the beginning of the 20th century gold production near Coldfoot was in decline and gold was
found at Nolan Creek in 1907; this shifted mining activity to the Wiseman area (Holen et al 2012,
ADCCEA 2017). Wiseman’s population was 320 in 1916 but following a decline in gold mining, the
population declined to 53 by 1939 and to 14 by 2010 (Holen et al. 2012, ADCCEA 2017).
ADF&G’s Division of Subsistence conducted comprehensive household subsistence surveys in both
Coldfoot and Wiseman in 2011 (Holen et al. 2012). While no households in Coldfoot reported use of
small land mammals in the study year, approximately 60% of Wiseman households reported use of one or
more of these species. Approximately 60% of households reported using and harvesting lynx specifically
and approximately 13 individual lynx were harvested by Wiseman residents in 2011. Lynx were included
in the top 10 resources used by Wiseman residents. Timing of small land mammal harvest is variable and
dependent on snow depth.
Holen et al. (2012) reported that small land mammals and furbearers are very important to Wiseman
residents for both personal use and as a source of income. Most of these animals were harvested for furs,
but one key respondent noted that some residents consume lynx for food. The harvest of small land
mammals for food consumption was less than 1% of the total harvest in 2011. Harvest of these species
occurred in the study year along the Middle Fork Koyukuk River south of Coldfoot to the vicinity of
Dietrich Camp landing strip, in an area east of Coldfoot toward South Fork Flats, and in an area northeast of
Wiseman near Bob Johnson Lake.
Harvest History
In 2016, lynx were ranked as the third most important species by trappers in State Region III (Interior) and
fur quality was reported as prime (Parr 2016). In Unit 24, harvest of lynx fluctuated with the lynx
population cycle over the years (Figure 2; Pamperin 2013). During the “super peak” in 2000, harvest
(based on lynx sealing records) was reported as 286 individuals, whereas the harvest dropped to 10
individuals during the population low in 2005 and reached 93 during the moderate peak in 2008 (Pamperin
2013). A majority of harvest consisted of adult lynx (Table 1; Pamperin 2013, Stout 2017 pers. comm.).
Harvest was low between 2012 and 2016, corresponding to a low in the lynx population cycle during this
time and lower trapper participation in recent years (Stout 2017, pers. comm.).
Figure 2. Lynx harvest in Unit 24 based on lynx sealing records provided to the State (Pamperin 2013,
Stout 2017, pers. comm.). Data for 2016 is still being submitted, so 2016 data shown on this graph is pre-
liminary and subject to change (Stout 2017, pers. comm.).
0
50
100
150
200
250
300
350
Lynx Harvested
Table 1. Lynx harvest in Unit 24 based on lynx sealing records provided to the State (Pamperin 2013, Stout 2017, pers. comm.). Data for 2016 is still being submitted, so 2016 data shown in this table is preliminary and subject to change (Stout 2017, pers. comm.).
Effects of the Proposal
If adopted, this proposal would add an additional 31 days to the Federal lynx trapping season in Unit 24A,
providing Federally qualified subsistence users with additional harvest opportunities.
This proposal would align the lynx trapping season with the wolverine trapping season in all of Unit 24A,
which would simplify Federal subsistence regulations. Lynx and wolverine are often trapped in the same
types of sets (Parr 2016). This would allow Federally qualified subsistence users to harvest lynx and
wolverines in the same trap line and would reduce the potential of incidental take of lynx out of season
while targeting wolverine.
Some data shows that trapping could harvest a large portion of the lynx population (USFWS 2017b). One
recent study reported that 100% of lynx fitted with radio collars near Fairbanks were trapped within a year
(USFWS 2017b). It is currently unknown if trapping of lynx in Unit 24A represents additive (i.e. in ad-
dition to natural mortality) or compensatory (i.e. does not add to what would have died naturally during
that year) mortality. It is also difficult to determine a population estimate for lynx due to the cyclical
YearLynx
Harvested
Adults
Harvested
Juveniles
Harvested
Unknown
Harvested
1999 102 101 0 1
2000 286 244 24 18
2001 212 184 25 3
2002 63 60 2 1
2003 26 25 1 0
2004 19 19 0 0
2005 10 10 0 0
2006 21 18 1 2
2007 35 31 4 0
2008 93 86 6 1
2009 61 51 6 4
2010 53 50 1 2
2011 61 55 3 2
2012 23 22 0 1
2013 10 9 0 1
2014 12 9 0 3
2015 5 5 0 0
2016 15 14 1 0
Unit 24 Reported Harvest of Sealed Lynx
nature of the population, although currently there are no indications of any biological concerns (Stout 2017,
pers. comm., USFWS 2017b).
OSM PRELIMINARY CONCLUSION
Support Proposal WP18-34.
Justification
Aligning the wolverine and lynx seasons in Unit 24A, as requested by the proponent, would provide more
opportunity for Federally qualified subsistence users and would decrease regulatory complexity. This
would also decrease the potential of illegal incidental take for trappers who use the same style trap for both
species, who may incidentally take lynx whether or not the regulations are modified.
The State (Stout 2017, pers. comm.) expressed that there is currently no biological concern pertaining to
lynx in Unit 24A. Harvest and trapper effort varies with the lynx cycle. This proposal will allow trappers
to harvest more lynx during the highs in the population cycle, which may help compensate for trapping
years when the lynx population is low or declining.
LITERATURE CITED
ADCCEA (Alaska Department of Commerce, Community, and Economic Affairs). 2017. Community and Regional
Affairs: Community Index. https://www.commerce.alaska.gov/dcra/DCRAExternal/community Retrieved: August
15, 2017.
Bertram, M. 2017. Movement patterns, dispersal behavior, and survival of lynx in relation to snowshoe hare
abundance in the boreal forest: 2017 capture summary report – Yukon Flats National Wildlife Refuge. Fairbanks, AK.
Churchwell, R. 2017. Wildlife biologist. Personal communication: email. USFWS. Fairbanks, AK.
DiFolco, D.L., K. Kielland, and J. Maier. 2017. Brooks range showshoe hares (finally) on the rise: snowshoe hare
ecology project 2016 update. Fairbanks, AK.
Holen, D., S.M. Hazell, and D.S. Koster, editors. 2012. Subsistence harvests and uses of wild foods by communities in
the eastern Interior of Alaska, 2011. ADF&G, Division of Subsistence Technical Paper No. 372. Anchorage, AK.
Hollis, A.L. 2010. Unit 24 furbearer. Pages 366-376 in P. Harper, editor. Furbearer management report of survey and
inventory activities1 July 2006 – 30 June 2009. ADF&G. Project 7.0. Juneau, AK, USA.
Joly, K., P.A. Duffy, and T.S. Rupp. 2012. Simulating the effects of climate change on fire regimes in Arctic biomes:
implications for caribou and moose habitat. Ecosphere 3(5): 36.
Jones, E. 1978. Dinaakkanaaga Ts’inh huyoza: Junior Dictionary for Central Koyukon Athabascan.
National Bilingual Materials Development Center, Division for Rural Education Affairs, University of
Alaska. Fairbanks, AK.
http://www.uafanlc.arsc.edu/data/Online/KO972J1978i/koyukon%20junior%20dictionary.pdf
Mowat, G. and B. Slough. 2003. Habitat preference of Canada lynx through a cycle in snowshoe hare abundance.
Canadian Journal of Zoology 81: 1736-1745.
Nelson, R.K., 1982. Make prayers to the raven. A Koyukon view of the northern forest. University of Chicago Press.
O'Donoghue, M., S. Boutin, C.J. Krebs, and E.J. Hofer. 1997. Numerical responses of coyotes and lynx to the
snowshoe hare cycle. Oikos 80: 150-162.
OSM. 2001. Staff Analysis WP01-44. Federal Subsistence Board Meeting Materials May 9-10, 2001. Office of
Subsistence Management, FWS, Anchorage, AK.
Pamperin, N.J. 2013. Unit 24 furbearer. Pages 330-339 in P. Harper and L.A. McCarthy, editors. Furbearer
management report of survey and inventory activities 1 July 2009-30 June 2012. ADF&G, Species Management
Report ADF&G/DWC/SMR-2013-5, Juneau, AK.
Parr, B.L. 2016. 2015 Alaska trapper report: 1 July 2015-30 June 2016. ADF&G, Wildlife Management Report
ADF&G/DWC/WMR-2016-1, Juneau, AK.
Stout, G. 2017. Galena area biologist. Personal communication: email. ADF&G. Fairbanks, AK.
USFWS. 2013. Canada lynx: Lynx Canadensis. Mountain Prairie Region. Internet:
http://www.fws.gov/mountain-prairie/species/mammals/lynx/CandaLynxFactSheet_091613.pdf. Retrieved: May 26,
2017.
USFWS. 2017a. Fact/budget sheet: Movement patterns, dispersal behavior, and survival of lynx in relation to
snowshoe hare abundance in the boreal forest. Fairbanks, AK.
USFWS. 2017b. Movement patterns, dispersal behavior, and survival of lynx in relation to snowshoe hare abundance
in the boreal forest. Fairbanks, AK.
Yom-Tov, Y., S. Yom-Tov, D. MacDonald, and E. Yom-Tov. 2007. Population cycles and changes in body size of
the lynx in Alaska. Oecologia: Population Ecology. 152: 239-244. DOI: 10.1007/s00442-006-0653-3.