The post-emergence period for denning Polar Bears: phenology and influence on cub survival
Erik M Andersen,
Ryan R Wilson,
Karyn D Rode
et al.
Abstract:Among polar bears (Ursus maritimus), only parturient females den for extended periods, emerging from maternal dens in spring after having substantially depleted their energy reserves during a fast that can exceed 8 months. Although den emergence coincides with a period of increasing prey availability, polar bears typically do not depart immediately to hunt, but instead remain at the den for up to a month. This delay suggests that there are likely adaptive advantages to remaining at the den between emergence an… Show more
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