Gray Wolves in the Northern Rocky Mountains
Mountain-Prairie Region

Wyoming Gray Wolf Recovery Status Report

From:               NRM Wolf Management and Science Coordinator, Jackson, WY

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

WYOMING WOLF REPORT – Sept. 26, 2011 through Oct. 21, 2011

           
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.

2010 Annual Report
The 2010 Interagency Annual Wolf (Canis lupus) Report for the NRM DPS will be available March 10, 2011 on-line at http://westerngraywolf.fws.gov .  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 wolves in other NRM states
Idaho at: http://fishandgame.idaho.gov/public/wildlife/wolves/.
Montana at: http://fwp.mt.gov/fishAndWildlife/management/wolf/default.html.
Oregon at:  www.dfw.state.or.us/wolves
Washington at: http://wdfw.wa.gov/conservation/gray_wolf/

 

Proposed Delisting in Wyoming
On 10/17/11, a 5-member panel of scientists met in Denver to peer review the USFWS proposed delisting rule and the WGFD Wolf Management Plan. Once completed in December, this assessment will be posted online at http://www.fws.gov/mountain-prairie/species/mammals/wolf/.

The Service is seeking scientific information and comments from the public about the proposal including the post-delisting monitoring and management framework. Written comments regarding the proposal may be submitted by one of the following methods: Federal eRulemaking Portal: http://www.regulations.gov. Follow the instructions for submitting comments to Docket No. [FWS–R6–ES–2011–0039].  U.S. mail or hand-delivery: Public Comments Processing, Attn: Docket No. [FWS–R6–ES–2011–0039]; Division of Policy and Directives Management; U.S. Fish and Wildlife Service; 4401 N. Fairfax Drive, MS 2042-PDM; Arlington, VA 22203. Comments must be received within 100 days, on or before January 13, 2012. The Service will post all comments on http://www.regulations.gov. This generally means the agency will post any personal information provided through the process. The Service is not able to accept email or fax comments. All comments and information, including on the assessment, received during the comment period will be considered during the preparation of a final determination. Accordingly, the final decision may differ from this proposal.

For further information, contact U.S. Fish and Wildlife Service, Mountain-Prairie Region Office, Ecological Services Division, 134 Union Blvd., Lakewood, CO 80228; telephone 303–236–7400. Persons who use a telecommunications device for the deaf (TDD) may call the Federal Information Relay Service (FIRS) at 800–877–8339.

The Service will hold a public hearing at the Robert A. Peck Arts Center, Central Wyoming College, 2660 Peck Avenue, Riverton, WY 82501 (307–855–2000) from 6:30- 8:30 p.m. on November 15, 2011, to give all interested persons the opportunity to submit comments on the proposal. There will be an informational meeting from 4:30 - 6:00 p.m. at the same location to provide an opportunity for the public asks questions regarding the proposed rule.

MONITORING
Wyoming (outside YNP)
Preliminary estimates show > 30 packs, including > 20 breeding pairs in Wyoming (outside YNP) in 2011(Figure 1). Final population counts and pack composition will be estimated on 31 December and will be published in our 2011 Annual Report. The WY wolf population (outside YNP) average increase from 2002-2010 has been approximately 17% per year (Figure 2).

          Figure 1.  Minimum number of wolf packs and breeding pairs in Wyoming, outside of Yellowstone National Park from 1999-2011 

Figure 1. Minimum number of wolf packs and breeding pairs in WY (outside YNP) from 1999-2011. Estimates for 2011 are preliminary as of 10/21/11.

figure 2: wolf population growth in Wyoming 2000 - 2010

Figure 2. Wolf population growth in WY: 2000 - 2010.

 

Table 1. Total wolf mortality in Wyoming (outside YNP) from 2003-2011.

Cause of Mortality 2003 2004 2005 2006 2007 2008 2009 2010 2011 Total
Depredation Control 18 29 41 44 63 46 31 40 31 343
Natural 3 0 3 1 2 3 2 2 2 18
Under Investigation 5 1 5 8 5 8 0 8 1 41
Unknown 1 0 0 1 2 8 7 4 5 28
Other 0 6 2 5 3 14 0 4 3 37
Total 27 36 51 59 75 79 40 58 42 467

LIVESTOCK CONFLICTS and DEPREDATION CONTROL
As of October 21, 2011, wolves killed > 68 livestock (38 cattle and 30 sheep) in Wyoming (Table 2). Fifteen packs (50% of WY packs in 2011) were involved in > 1 depredation; 8 packs (27%) were involved in > 2 depredations; and 5 packs (17%) were involved in > 3 depredations in 2011.

 

Table 2: Confirmed livestock depredations and control actions in Wyoming from 2003 through October 21, 2011.  


Year

2003

2004

2005

2006

2007

2008

2009

2010

2011

Total

Wyoming

Cattle

34

75

54

123

55

41

20

26

38

466

Sheep

7

18

27

38

16

26

195

33

30

390

Other

2

10

1

0

1

0

0

1

  0*

   15

Dogs

0

2

1

1

2

0

7

0

1

14

Wolves killed

18

29

41

44

63

46

31

40

  31

343

* A horse broke its leg and had to be euthanized after being chased by wolves in a pasture on private property. Six additional horses were injured in 2011

 

Table 3. Confirmed livestock depredations and control actions in Montana (Jan 2003-Oct 13, 2011) and Idaho (Jan 2003-Sept 30, 2011).

Year

2003

2004

2005

2006

2007

2008

2009

2010

2011

Total

Montana

Cattle

24

36

23

32

75

77

97

87

74

525

Sheep

86

91

33

4

27

111

202

84

12

650

Other

0

3

2

2

14

16

6

11

1

55

Dogs

1

4

1

4

3

2

4

2

6

27

Wolves killed

34

40

35

53

73

110

145

141

50

681

Idaho

Cattle

7

19

29

41

57

104

76

75

57

465

Sheep

130

176

166

237

211

215

295

148

65

1,643

Other

0

0

0

0

0

1

1

3

0

5

Dogs

3

4

12

4

10

14

14

0

4

65

Wolves killed

7

17

27

42

50

108

93

80

53

477

 

 

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

For additional information, please contact:
Mike Jimenez at (307)330-5631 or (307)733-7096 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