Gray Wolves in the Northern Rocky Mountains
Mountain-Prairie Region

Wyoming Gray Wolf Recovery Status Report

From:               USFWS Wyoming Wolf Recovery Project Leader, Jackson, WY

Subject:            Status of Gray Wolf Management in Wyoming and the NRM

WYOMING WOLF WEEKLY- Nov. 1 through Nov. 5, 2010

           
Web Address – USFWS reports (past weekly and annual reports) can be viewed at http://westerngraywolf.fws.gov .   All weekly and annual reports are government property and can be used for any purpose.  Please distribute as you see fit.

2009 Annual Report
The 2009 Interagency Annual Wolf (Canis lupus) Report for the NRM DPS in 2009 can be viewed on-line at http://westerngraywolf.fws.gov .  The Idaho and Montana state sections of the annual wolf report are also available on-line at the websites for Montana Fish, Wildlife and Parks http://fwp.mt.gov/wildthings/management/wolf/default.html and Idaho Department of Fish and Game http://fishandgame.idaho.gov/cms/wildlife/wolves.  The annual wolf report is composed of five Sections: 1) Montana; 2) Wyoming; 3) Idaho; 4) USFWS overview of dispersal, funding, litigation, and relevant publications; and 5) Tables and Figures of wolf population statistics and wolf depredations. 

Information about Oregon wolves can be viewed at: 
www.dfw.state.or.us/wolves

Information about Washington wolves can be viewed at: http://wdfw.wa.gov/conservation/gray_wolf/

Litigation Status
Wyoming: Oral arguments were heard in federal court in Cheyenne, WY on January 29 to address the state of Wyoming’s request that the USFWS accept the Wyoming Wolf Management Plan. A decision from Judge Allen Johnson is pending. 

MONITORING
Wyoming: At least 19 wolf packs have denned throughout Wyoming (outside YNP) in 2010. Figures 1-2 and Table 1 display preliminary population data recorded as of November 5, 2010. All additional population data recorded between November 5 and December 31, 2010 will be reported in our Weekly Reports and our 2010 Annual Report.
             
Figure 1: Number of wolf packs and breeding pairs in Wyoming outside Yellowstone National Park 1999-2010
Figure 1. Number of wolf packs and breeding pairs in WY (outside YNP): 1999-2010.

 

Figure 2: Annual wolf population size in Wyoming out side Yellowstone National Park from 2000 - 2010
Figure 2. Annual wolf population size in WY (outside YNP) from 2000 – 2010.

 

Table 1: total wolf mortality in Wyoming outside Yellowstone National Park from 2003 - 2010
Table 1. Total wolf mortality in Wyoming (outside YNP) from 2003 - 2010.   

CONTROL
Wyoming: We continue to manage wolf population growth and wolf distribution to minimize chronic loss of livestock from wolves and promote wolf conservation by maintaining the Wyoming wolf population well above recovery objectives. Figures 3-6 and Table 2 display preliminary depredation and control data recorded as of November 5, 2010. All additional livestock losses due to wolf depredations occurring between November 5, 2010 and December 31, 2010 will be reported in our Weekly Reports and our 2010 Annual Report.  

Table 2. Confirmed livestock depredations and control actions in WY from 2003 - 2010.
         Table 2: confirmed livestock depredations and control actions in Wyoming from 2003 - 2010

*One foal was killed by wolves (recorded as confirmed), 2 horses were chased by wolves and injured when they were run through a fence (recorded as 1 confirmed and 1 probable), and 1 horse was chased by wolves and broke its leg when it was run over a cattle guard (recorded as probable). All 3 injured horses had to be euthanized.
** In addition to 29 confirmed cattle depredations (losses), 1 dead calf was recorded as a probable wolf-kill, and 7 calves & 1 steer were also injured by wolves.

Figure 3: Confirmed cattle depredations including dead and injured cattle by county from 2006 through 2010
Figure 3. Confirmed cattle depredations (including dead and injured cattle)
by county from 2006 through 2010.


Figure 4: confirmed sheep depredations by country from 2006 through 2010
Figure 4. Confirmed sheep depredations by county from 2006 through 2010.

 

Figure 5: the number of cattle and sheep losses per year in Wyoming outside Yellowstone National Park from 2000 - 2010
Figure 5. The number of cattle and sheep losses per year in Wyoming (outside YNP) from 2000-2010.

Figure 6. Annual number of wolf packs in Wyoming (outside YNP) and the number of wolf packs (n=13) that are involved in at least 1 livestock depredation per given year.
Figure 6. Annual number of wolf packs in Wyoming (outside YNP) and the number of wolf packs (n=13) that are involved in at least 1 livestock depredation per given year.

RESEARCH
Nothing to report at this time. 

LAW ENFORCEMENT AND RELATED ACTIVITIES   
Nothing to report at this time. 

OUTREACH AND EDUCATION
On 11/4/10, Jimenez (USFWS) gave an update on wolves and wolf management to the Wyoming Animal Damage Predator Management Board in Buffalo, WY.

FURTHER INFORMATION
To request an investigation of livestock injured or killed by wolves, please contact the U.S. Dept. of Agriculture Wildlife Services at (307)261-5336.

For additional information, please contact:
Ed Bangs (Helena, MT) (406)449-5225 x204 or Ed_Bangs@FWS.GOV
Mike Jimenez (Jackson) (307)733-7096 or (307)330-5631 or Mike_Jimenez@FWS.GOV
Scott Becker (Cody) (307)527-8916 or (307)699-3411 or Scott_Becker@FWS.GOV

Last updated: November 8, 2012