Predation of a Beaver (Castor canadensis) by a Gray Wolf (Canis lupus) during Winter

Daniel L. Hernández; Joseph K. Bump

doi:10.1674/0003-0031-187.1.97

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Daniel L. Hernández,¹ Joseph K. Bump²

¹Biology Department, Carleton College, 1 North College Street, Northfield, MN 55057
²Department of Fisheries, Wildlife, and Conservation Biology, University of Minnesota 2003 Upper Buford Circle, St. Paul, MN 5510

Abstract

Wolf predation of beaver is common in boreal ecosystems, but predation events are thought to be rare in winter. We describe the encounter of a recent wolf predation event of a beaver during conditions of ice cover. The beaver had a broken upper incisor, which may have contributed to it foraging on land during the winter. While it is common for injured animals to have increased vulnerability to predation, injuries can also influence foraging decisions that may indirectly increase vulnerability to predation.

Citation Download Citation

Daniel L. Hernández and Joseph K. Bump "Predation of a Beaver (Castor canadensis) by a Gray Wolf (Canis lupus) during Winter," The American Midland Naturalist 187(1), 97-103, (3 January 2022). https://doi.org/10.1674/0003-0031-187.1.97

Received: 23 February 2021; Accepted: 25 May 2021; Published: 3 January 2022