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The Management of Grizzly Bears in the Yukon, Canada
George A. Sidorowicz and Frederick F. Gilbert
Wildlife Society Bulletin (1973-2006)
Vol. 9, No. 2 (Summer, 1981), pp. 125-135
Stable URL: http://www.jstor.org/stable/3781581
Page Count: 11
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A computer-assisted model of grizzly bear (Ursus arctos L.) population growth in the Yukon Territory was developed and used to project changes in a hypothetical population based on biological data for the species. The changes observed depended mainly on the levels of adult mortality to which the model population was exposed. It appears that an annual sport harvest of 2-3% (about 100 bears) would be a safe management goal; the projection carried forward 50 years at that harvest level showed no decline in population size. Management recommendations include restrictions to control population structure and breeding potential by protecting cubs and females with cubs, and the establishment of a "1 grizzly per lifetime" limit and license quotas for nonresident hunters. In addition, further insurance against overhunting could be obtained if effective management zones based on ecophysical criteria were created.
Wildlife Society Bulletin (1973-2006) © 1981 Wiley