兽类学报2008，Vol.28Issue(1)：1-6,6.
犬尾田鼠在斑块生境中更喜好内部区域
Gray-tailed voles prefer interior to edge habitats
摘要
Abstract
We examined habitat preference of the gray tailed vole(Microtus canicaudus), in an experimental fragmented landscape to test the hypothesis that female voles prefer interior to edge habitats. One hundred percent and 76% of adult female home ranges were located in interior habitat at low and high densities, respectively. The proportion of captures of females in edge habitat was lower at both low and high densities, but this difference was most pronounced at low densities. After selective removal of some females from interior and edge habitats at high densities,8(62%) of 13 females shifted their home ranges from edge to interior habitats compared to only 3(15%) of 20 females moving from interior to edge habitats. Reproductive rates, survival, and body mass were comparable for females in edge and interior habitats. However, home range sizes were smaller for females in edge than interior habitats. These results support descriptive studies on some other small rodents e g ,Clethrionomys sp. and some Microtus sp., but differ from those of meadow voles, M.pennsylvanicus.We conclude that gray tailed voles prefer interior to edge habitats and that the ratio of edge to interior habitats can potentially affect habitat selection and perhaps overall demography in fragmented landscapes.关键词
边缘效应/犬尾田鼠/生境斑块/巢区/景观生态学Key words
Edge effects/ Graytailed voles (Microtus canicaudus)/ Habitatpatches/ Home range/ Landscape ecology分类
生物科学引用本文复制引用
WOLFF Jerry O,BOND Monica..犬尾田鼠在斑块生境中更喜好内部区域[J].兽类学报,2008,28(1):1-6,6.基金项目
This research was supported by the National Science Foundation and a Cooperative Agreement between the U.S.Environmental Protection Agency and Oregon State University,USA. （）
