Density-related home-range size and overlap in adult field voles (Microtus agrestis) in southern Sweden
Density-related home-range size and overlap in adult field voles (Microtus agrestis) in southern Sweden
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瑞典南部成年田鼠（Microtus agrestis）与密度相关的活动范围大小和重叠
DOI：
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发表时间：
1990
期刊：
影响因子：
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通讯作者：
M. Sandell
中科院分区：
文献类型：
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作者：
S. Erlinge;I. Hoogenboom;J. Agrell;J. Nelson;M. Sandell
通过为期2年的标记-再捕获研究，探讨了中国田鼠（Microtus agrestis）种群的巢域动态以及种群密度、巢域大小和空间格局之间的关系。家域大小随田鼠密度而变化。在高密度在非繁殖季节，范围的一半大小，在低密度测量。在繁殖季节的家庭范围是相当大的比那些建立在非繁殖季节的高密度，但没有不同的大小，从那些在非繁殖季节的低密度。雄性的范围一般大于雌性。已建立的田鼠通常整个冬天都呆在同一个禁区内。在低密度，男性表现出改变家庭范围的倾向。随着春季繁殖的开始，越冬的个体通常定居在邻近其冬季范围的地区。成年女性成为分布根据领土模式在春季，而范围的男性仍然广泛重叠在早期的繁殖季节。在非繁殖季节，田鼠范围广泛重叠，特别是在高密度。然而，没有证据表明任何性别的群体结构与聚集行为。
Home-range dynamics and the relation between population density, home-range size, and spacing pattern in a Microtus agrestis population were examined in a 2-year-long mark-recapture study. Home-range size varied with vole density. At high densities during the nonbreeding season, ranges were half the size of those measured at low densities. Home ranges during the breeding season were considerably larger than those established during the nonbreeding season with high densities, but did not differ in size from those in the nonbreeding season with low densities. Ranges of males generally were larger than those of females. Established voles generally stayed in the same restricted area throughout winter. At low densities, males showed a tendency to change home ranges. With onset of breeding in spring, overwintered individuals usually settled in areas adjacent to their winter ranges. Adult females became distributed according to a territorial pattern in spring, whereas ranges of males still overlapped extensively during the early part of the breeding season. During the nonbreeding season, vole ranges overlapped extensively, especially at high densities. There was, however, no evidence of group structure with aggregation behavior in any of the sexes.