Natal den selection by sympatric arctic and red foxes on Herschel Island, Yukon, Canada

  title={Natal den selection by sympatric arctic and red foxes on Herschel Island, Yukon, Canada},
  author={Daniel Gallant and Donald G. Reid and Brian G. Slough and Dominique Berteaux},
  journal={Polar Biology},
In the twentieth century, red fox (Vulpes vulpes) expanded into the Canadian Arctic, where it competes with arctic fox (Vulpes lagopus) for food and shelter. Red fox dominates in physical interactions with the smaller arctic fox, but little is known about competition between them on the tundra. On Hershel Island, north Yukon, where these foxes are sympatric, we focused on natal den choice, a critical aspect of habitat selection. We tested the hypothesis that red fox displaces arctic fox from… 
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