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Table 8. Wolverine survey area information, including duration of monitoring and number of installations.
+
Denotes a survey
area without a run-pole installed. ^Denotes the first date photos were received in 2018 from survey areas left active over the
winter. *Denotes the last date cameras were checked, but survey area was not uninstalled.
Wolverine Camera Survey Areas 2018
Survey Area
General
Region
# of
Installations
Installation
Date
Removal Date
Total Trap
Nights
Lure
Lookout Mountain GPNF 1 2017/10/28^ 2018/10/13 350 Gusto / Bait
Government
Meadows +
MBSNF
1 2018/08/01 2018/11/16 107
Gusto / Bait
Kendall Peaks + MBSNF 2 2017/08/15^ 2018/12/14 441 Bait
Shuksan Arm + MBSNF 2 2018/06/24 2018/08/30 107 Gusto / Bait
Easy Ridge+ NCNP 1 2017/08/27^ 2018/05/25 271 Gusto / Bait
Hannegan Pass + NCNP 2 2017/11/07^ 2018/10/22 390 Gusto / Bait
Chiwaukum OWNF 2 2017/11/11^ 2018/11/04 716 Gusto / Bait
Chiwawa OWNF 2 2018/05/28 2018/11/03 159 Gusto / Bait
Ice Lakes OWNF 1 2017/07/23^ 2018/08/12 140 Gusto / Bait
Lake Ethel OWNF 1 2017/10/18^ 2018/10/20 367 Gusto / Bait
Union Gap OWNF 1 2017/10/14^ 2018/07/31 290 Gusto / Bait
Twin Lakes + OWNF 1 2017/12/20^ 2018/10/05 250 Gusto / Bait
Early Winters
(CWP)+
OWNF
4 2017/12/11 2018/05/13 518
Gusto / Bait
Twisp River
(CWP)+
OWNF
2 2017/12/14 2018/04/18 250
Gusto / Bait
Holden (CWP)+ OWNF 1 2018/01/15 2018/03/05 49 Gusto / Bait
be more than 10 feet. Since two cameras are running simultaneously, duplicate events are deleted prior to
updating our database to obtain a more accurate understanding of detection rate and species detected, without
doubling detection events. Eight survey areas did not have run-poles established: Hannegan Pass, Easy Ridge,
Twin Lakes, Union Gap, Kendall Peaks and the Cascade Wolverine Project (CWP) sites. Their set-up was based on
the Multi-State monitoring effort
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protocol. Our cameras detected wolverines at Hannegan Pass, Ice Lakes, Lake
Ethel, and two Cascades Wolverine Project sites, Holden and Early Winters, also detected wolverine presence. The
Hannegan Pass camera had two individuals visit the site, as differentiated by a white marking on the left front
paw on one individual. A lower-elevation site was established along Ruth Creek that also detected a wolverine,
though no distinguishing marks were documented. This remains a high-priority area for wolverine monitoring in
the North Cascades. The Ice Lakes camera, which has detected wolverines in past years, again had two wolverines
detected together by the volunteers as they approached the site to maintain the camera. The Lake Ethell site had
a previously-identified male, based on his unique chest blaze.
In areas with high detection rates of target species, like Hannegan Pass or Ice Lakes, we will be developing a plan
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https://wildlife.org/wp-content/uploads/2016/12/7_Bjornlie_WY-TWS-presentation.pdf
