Influence of Reproductive Status: Home Range Size in Water Voles (Arvicola amphibius)
Influence of Reproductive Status: Home Range Size in Water Voles (Arvicola amphibius)
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DOI：
10.1371/journal.pone.0154338
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发表时间：
2016-04-26
期刊：
影响因子：
3.7
通讯作者：
Frafjord, Karl
中科院分区：
文献类型：
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作者：
Frafjord, Karl
2006-2009年，在挪威北部沿海的一个岛屿上，通过无线电跟踪研究了水田鼠（Arvicola amphibius）的活动范围与繁殖状况之间的关系。其目的是测试有关该物种相对于其他微时间的社会结构的假设。幼鱼的活动范围相当小（约400米），雄性和雌性之间没有区别。四月越冬的亚成年田鼠的活动范围与幼年田鼠相似。繁殖活跃的雄虫（平均2774.0 m(2)）的活动范围是幼虫的7倍，是成年雌虫（平均848.3 m(2)）的3.3倍，这也扩大了它们的活动范围。大多数幼崽出生在5月和6月，随着繁殖在7月停止，成年雄性减少了活动范围，而雌性却没有。体重或年龄对家庭范围大小没有影响。家庭范围的重叠有所不同，但在成年男性和女性中都可能广泛存在。水田鼠的社会结构与一些田鼠相似，但雌性似乎是无领地性的，雄性可能是有条件的领地性和无领地性。
The relationship between home range and reproductive status of water voles (Arvicola amphibius) was studied by radio-tracking on an island off the coast of northern Norway in 2006-2009. The aim was to test assumptions about the species' social structure relative to other microtines. Juveniles used fairly small ranges (about 400 m(2)), with no difference between males and females. Subadults, overwintered voles in April, had ranges similar to juveniles. Reproductively active males (mean 2774.0 m(2)) increased their range seven-fold relative to juvenile males, with ranges on average 3.3 times larger than adult females (mean 848.3 m(2)), which also expanded their range. Most litters were born in May and June, and as reproduction ceased in July adult males reduced their range whilst females did not. Body mass or year did not influence home range size. Overlap of home ranges varied, but could be extensive in both adult males and females. The water vole had a social structure similar to some Microtus species, but females appeared to be non-territorial and males perhaps conditioned territorial and non-territorial.