POPULATION AND HABITAT CHARACTERISTICS OF LYNX AND SNOWSHOE HARES IN NORTH CENTRAL WASHINGTON

被引:98
作者
KOEHLER, GM
机构
来源
CANADIAN JOURNAL OF ZOOLOGY-REVUE CANADIENNE DE ZOOLOGIE | 1990年 / 68卷 / 05期
关键词
D O I
10.1139/z90-122
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
Lynx canadensis used areas >1463 m elevation that were dominated by lodgepole pine Pinus contorta and Engelmann spruce-subalpine fir (Picea engelmannii-Abies lasiocarpa) cover types. Snowshoe hares Lepus americanus were the most common prey with remains occurring in 23 of 29 scats. Hares were most abundant in 20-yr-old lodgepole pine stands. Fire suppression and natural fire frequencies in the past 5 decades has limited the amount of these early successional forests. Marginal habitat conditions for snowshoe hares probably resulted in a scarcity of prey in the study area and may explain the relatively large home ranges of lynx (69 ± 28 km2 for 5 males, 39 ± 2 km2 for 2 females), low density of adults (2.3 lynx/100 km2), and high kitten mortality rates (88% for 8 kittens in 3 litters). Demographic characteristics of lynx in the study area may be representative of lynx populations along the southern periphery of their range. -from Author
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页码:845 / 851
页数:7
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