Is climate change affecting wolf populations in the High Arctic?

被引：15
|
作者：
Mech, LD [1 ]
机构：
[1] US Geol Survey, No Prairie Wildlife Res Ctr, Div Biol Resources, Jamestown, ND 58401 USA
来源：
CLIMATIC CHANGE | 2004年 / 67卷 / 01期
关键词：
D O I：
10.1007/s10584-004-7093-z
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Gobal climate change may affect wolves in Canada's High Arctic (80degrees N) acting through three trophic levels (vegetation, herbivores, and wolves). A wolf pack dependent on muskoxen and arctic hares in the Eureka area of Ellesmere Island denned and produced pups most years from at least 1986 through 1997. However, when summer snow covered vegetation in 1997 and 2000 for the first time since records were kept, halving the herbivore nutrition-replenishment period, muskox and hare numbers dropped drastically, and the area stopped supporting denning wolves through 2003. The unusual weather triggering these events was consistent with global-climate-change phenomena.
引用
收藏
页码：87 / 93
页数：7
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