| Abstract: | One of the early tenets of conservation biology is that population viability is enhanced by maintaining multiple populations of a species. The strength of this tenet is justified by principles of bet-hedging. Management strategies that reduce variance in population size will also reduce risk of extinction. Asynchrony in population fluctuations in independent populations reduces variance in the aggregate of populations whereas environmental correlation among areas increases the risk that all populations will go extinct. We review the theoretical rationale of bet-hedging and suggest applications for conservation management of least terns in Nebraska and grizzly bears in the northern Rocky Mountains of the United States. The risk of extinction for least terns will be reduced if we can sustain the small central Platte River population in addition to the larger population on the lower Platte. Similarly, by restoring grizzly bears to the Bitterroot wilderness of Idaho and Montana can reduce the probability of extinction for grizzly bears in the Rocky Mountains of the United States by as much as 69-93%. |
| Genre: | Article |
| ProdID: | 1002957 |
| Citation Author: | Boyce, M. S.; Kirsch, E. M.; Servheen, C. |
| Citation Contributing Office: | Upper Midwest Environmental Sciences Center |
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| Citation End Page: | 392 |
| Citation Issue: | 4 |
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| Citation Language: | English |
| Citation Larger Work Title: | Journal of Biosciences |
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| Citation Number Of Pages: | 8 |
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| Citation Phsyical Description: | pp. 385-392 |
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| Citation Publisher: | Univ of Alberta, Dept Biol Sciences |
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| Citation Search Results Text: | Bet-hedging applications for conservation; 2002; Article; Journal; Journal of Biosciences; Boyce, M. S.; Kirsch, E. M.; Servheen, C. |
| Citation Start Page: | 385 |
| Citation Volume: | 27 |
| Citation Year: | 2002 |
| Type: | citation/reference |
| Text: | Bet-hedging applications for conservation; 2002; Article; Journal; Journal of Biosciences; Boyce, M. S.; Kirsch, E. M.; Servheen, C. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DOCUMENT): | http://www.cfc.umt.edu/grizzlybearrecovery/pdfs/Boyce%20et%20al.%202002.pdf |
| Date Other: | Tue, 1 Jan 2002 00:00 -0600 |
| Publisher: | Univ of Alberta, Dept Biol Sciences |
