Effects of corridors on home range sizes and interpatch movements of three small mammal species
Effects of corridors on home range sizes and interpatch movements of three small mammal species
复制标题
走廊对三种小型哺乳动物的活动范围大小和斑块间运动的影响
DOI：
10.1023/a:1021545419534
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发表时间：
2002
影响因子：
5.2
通讯作者：
G. Barrett
中科院分区：
文献类型：
--
作者：
K. Mabry;G. Barrett
走廊预计将通过促进运动而使斑块生境中的种群受益，这应该会增加种群密度、基因流动和已灭绝斑块种群的再殖民。然而，很少有研究人员考虑到小型哺乳动物对整个景观的利用，特别是通过基质栖息地进行斑块间移动的可能性。本研究比较了有走廊斑块和无走廊斑块上棉鼠、老田鼠和棉鼠3种小型哺乳动物的活动范围大小。研究地点在美国南卡罗来纳州。走廊的存在对平均家庭牧场大小没有统计上的显著影响。居住地专门化和性别影响个体在两个没有走廊的斑块之间移动的概率。这项研究的结果表明，小型哺乳动物可能比人们通常认为的更有能力在没有走廊的情况下进行斑块间运动。
Corridors are predicted to benefit populations in patchy habitats bypromoting movement, which should increase population densities, gene flow, andrecolonization of extinct patch populations. However, few investigators haveconsidered use of the total landscape, particularly the possibility ofinterpatch movement through matrix habitat, by small mammals. This studycompares home range sizes of 3 species of small mammals, the cotton mouse(Peromyscus gossypinus), old-field mouse (P.polionotus) and cotton rat (Sigmodon hispidus)between patches with and without corridors. The study site was in S. Carolina,USA. Corridor presence did not have astatistically significant influence on average home range size. Habitatspecialization and sex influenced the probability of an individual movingbetween 2 patches without corridors. The results of this study suggest thatsmall mammals may be more capable of interpatch movement without corridors thanis frequently assumed.