Reduced body size and cub recruitment in polar bears associated with sea ice decline.

@article{Rode2010ReducedBS,
  title={Reduced body size and cub recruitment in polar bears associated with sea ice decline.},
  author={Karyn D Rode and Steven C. Amstrup and Eric V. Regehr},
  journal={Ecological applications : a publication of the Ecological Society of America},
  year={2010},
  volume={20 3},
  pages={
          768-82
        }
}
  • K. Rode, S. Amstrup, E. Regehr
  • Published 2010
  • Biology, Medicine
  • Ecological applications : a publication of the Ecological Society of America
Rates of reproduction and survival are dependent upon adequate body size and condition of individuals. Declines in size and condition have provided early indicators of population decline in polar bears (Ursus maritimus) near the southern extreme of their range. We tested whether patterns in body size, condition, and cub recruitment of polar bears in the southern Beaufort Sea of Alaska were related to the availability of preferred sea ice habitats and whether these measures and habitat… Expand
Variation in the response of an Arctic top predator experiencing habitat loss: feeding and reproductive ecology of two polar bear populations.
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Higher biological productivity and prey availability in the CS relative to the SB, and a shorter recent history of reduced sea ice habitat, may explain the maintenance of condition and recruitment of CS bears. Expand
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TLDR
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The effects of sea ice loss on polar bears in the southern Beaufort Sea may apply to polar bear populations in other portions of the polar basin that have similar sea ice dynamics and have experienced similar, or more severe, sea ice declines. Expand
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