Polar bear foraging on common eider eggs: estimating the energetic consequences of a climate-mediated behavioural shift

• Published in: Animal Behaviour
• Main Authors: Jagielski, Patrick M., Dey, Cody J., Gilchrist, H. Grant, Richardson, Evan S., Semeniuk, Christina A.D.
• Format: Text
• Language: unknown
• Published: Scholarship at UWindsor 2021
• Subjects: common eider; East Bay Migratory Bird Sanctuary; eggs; energetic benefit–cost; foraging; Mitivik Island; polar bear; Somateria mollissima; terrestrial resource; Ursus maritimus; Canada; East Bay; Nunavut; Common Eider; Sea ice
• Online Access: https://scholar.uwindsor.ca/glierpub/656; https://doi.org/10.1016/j.anbehav.2020.11.009

Climate-mediated phenological shifts can cause species to lose access to their primary prey while increasing opportunities for alternative-prey encounters. Species that are able to capitalize on alternative resources could potentially profit from prey-switching should the benefits of procuring these...