Table 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.
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Table 2
Wolf population growth in WY: 2000 - 2010.
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Thirty Wyoming wolf packs
by Cat Urbigkit, Pinedale Online!
October 28, 2011
The U.S. Fish & Wildlife Service reports:
"Preliminary estimates show > 30 packs, including > 20 breeding pairs in Wyoming (outside YNP) in 2011. 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.
"As of October 21, 2011, wolves killed > 68 livestock
(38 cattle and 30 sheep) in Wyoming. 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."
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