publication . Article . 2015

Can polar bears use terrestrial foods to offset lost ice-based hunting opportunities?

Rode, Karyn D.; Robbins, Charles T.; Nelson, Lynne; Amstrup, Steven C.;
Open Access
  • Published: 01 Apr 2015
Abstract
Increased land use by polar bears (Ursus maritimus) due to climate‐change‐induced reduction of their sea‐ice habitat illustrates the impact of climate change on species distributions and the difficulty of conserving a large, highly specialized carnivore in the face of this global threat. Some authors have suggested that terrestrial food consumption by polar bears will help them withstand sea‐ice loss as they are forced to spend increasing amounts of time on land. Here, we evaluate the nutritional needs of polar bears as well as the physiological and environmental constraints that shape their use of terrestrial ecosystems. Only small numbers of polar bears have b...
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Article . 2015
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