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Polar bear population dynamics in the southern Beaufort Sea during a period of sea ice decline

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Bromaghin, J. F., T. L. McDonald, I. Stirling, A. E. Derocher, E. S. Richardson, E. V. Regehr, D. C. Douglas, G. M. Durner, T. Atwood, and S. C. Amstrup. 2015. Polar bear population dynamics in the southern Beaufort Sea during a period of sea ice decline. Ecological Applications 25(3):634-651.

Summary

In the southern Beaufort Sea of the United States and Canada, prior investigations have linked declines in summer sea ice to reduced physical condition, growth, and survival of polar bears (Ursus maritimus). Combined with projections of population decline due to continued climate warming and the ensuing loss of sea ice habitat, those findings contributed to the 2008 decision to list the species as threatened under the U.S. Endangered Species Act. Here, we used mark–recapture models to investigate the population dynamics of polar bears in the southern Beaufort Sea from 2001 to 2010, years during which the spatial and temporal extent of summer sea ice generally declined. Low survival from 2004 through 2006 led to a 25–50% decline in [...]

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Harvested on Tue Mar 31 04:25:23 MDT 2015 from MODS XML Service

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Type Scheme Key
local-index unknown 70144117
local-pk unknown 70144117
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.1890/14-1129.1
series unknown Ecological Applications

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citationTypeArticle
journalEcological Applications
languageEnglish
parts
typevolume
value25
typeissue
value3

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