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Global declines of caribou and reindeer

LIV SOLVEIG VORS

Department of Biological Sciences, University of Alberta, Edmonton, Alberta, T6G 2E9, Canada

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MARK STEPHEN BOYCE

Department of Biological Sciences, University of Alberta, Edmonton, Alberta, T6G 2E9, Canada

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First published: 07 October 2009
Cited by: 167
Liv Solveig Vors, tel./fax: +780 492 1298, e‐mail: vors@ualberta.ca

Abstract

Caribou and reindeer herds are declining across their circumpolar range, coincident with increasing arctic temperatures and precipitation, and anthropogenic landscape change. Here, we examine the mechanisms by which climate warming and anthropogenic landscape change influence caribou and reindeer population dynamics, namely changes in phenology, spatiotemporal changes in species overlap, and increased frequency of extreme weather events, and demonstrate that many caribou and reindeer herds show demographic signals consistent with these changes. While many caribou and reindeer populations historically fluctuated, the current, synchronous population declines emphasize the species' vulnerability to global change. Loss of caribou and reindeer will have significant, negative socioeconomic consequences for northern indigenous cultures.

Number of times cited: 167

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