Interactions between Polar Bears and Overwintering Walruses in the Central Canadian High Arctic

  title={Interactions between Polar Bears and Overwintering Walruses in the Central Canadian High Arctic},
  author={Wendy Calvert and Ian Stirling},
There are few records of predation by polar bears (Ursus maritimus) on walruses (Odobenus rosmarus), although their distributions overlap extensively. During the late winter and early spring from 1981 through 1989, we recorded interactions between polar bears and walruses in the central Canadian High Arctic, where walrus movements are severely restricted in the winter by limited areas of open water for breathing and haulout holes. Predatory behaviour of bears and anti-predator behaviour of… 

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