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Conservation of the Yellowstone Grizzly Bear
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Conservation of the Yellowstone Grizzly Bear

著者: David J Mattson; Matthew M Reid
版本/格式: 文章 文章 : 英语
刊登在:Conservation Biology, Sep., 1991, vol. 5, no. 3, p. 364-372
数据库:JSTOR
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文件类型: 文章
所有的著者/提供者: David J Mattson; Matthew M Reid
ISSN:0888-8892
OCLC号码: 478877459
语言注释: English
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摘要:

We review literature relevant to the conservation of Yellowstone's grizzly bear population and appraise the bear's long-term viability. We conclude that the population is isolated and vulnerable to epidemic perturbation and that the carrying capacity of the habitat is likely to shift downward under conditions of climate change. Viability analyses based on the assumption that future habitats will closely resemble those existing at present have limited applicability; more information is needed on the autecology of important bear foods and on the implications of landscape-scale changes for bear population dynamics. Optimism over prospects of long-term persistence for Yellowstone's grizzly bears does not seem to be warranted, and management of this population should be conservative and not unduly swayed on short-term positive trends.

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