Black bear resource selection in the northeast Cascades, Washington

被引:51
作者
Lyons, AL
Gaines, WL
Servheen, C
机构
[1] US Forest Serv, Okanogan & Wenatchee Natl Forests, Wenatchee, WA 98801 USA
[2] Univ Montana, Missoula, MT 59812 USA
关键词
black bear; habitat selection; compositional analysis; Washington; HABITAT USE; POPULATION; MOUNTAINS; RIPARIAN; ERROR; ROADS;
D O I
10.1016/S0006-3207(02)00349-X
中图分类号
X176 [生物多样性保护];
学科分类号
090705 ;
摘要
We examined resource selection of black bears in the northeast Cascades of Washington at two spatial scales. Specifically, we compared habitats selected for within home ranges to those available in the study area, and habitats selected for versus those available within home ranges. Compositional analysis showed selection of similar habitats at each spatial scale, with some differences. In the dry climate of the eastern Cascades, black bears appeared to locate home ranges within habitats that would provide abundant food resources, such as riparian and deciduous forests, meadows and shrubfields. Once established in a home range, black bears selected for a mosaic of habitat types that provided security cover in proximity to food resources, such as riparian and deciduous forests, other forest types and meadows. Published by Elsevier Science Ltd.
引用
收藏
页码:55 / 62
页数:8
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