Ecological Relationships of Small Mammals in a New Jersey Barrier Beach Habitat
Ecological Relationships of Small Mammals in a New Jersey Barrier Beach Habitat
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新泽西州屏障海滩栖息地中小型哺乳动物的生态关系
DOI：
10.2307/1378477
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发表时间：
1970
影响因子：
1.7
通讯作者：
D. J. Shure
中科院分区：
文献类型：
--
作者：
D. J. Shure
研究在新泽西州的岛屿海滩州立公园进行，以确定屏障海滩栖息地中小型哺乳动物的分布模式和活动。捕捉到的物种有白斑潜蝇、宾夕法尼亚田鼠、哈德逊乌斯、小鼠和灰腹小鼠。大多数屏障海滩社区包含的小型哺乳动物比新泽西大陆报告的更多。海岛海滩小型兽类的分布与地形控制的环境和植被格局有关。很少有老鼠在海拔最高的沙丘地带的稀疏盖层中觅食。在受保护程度较高的沙丘区的灌丛和林地栖息地中，白色拟青霉占据了优势地位，而在草本植物覆盖较密的海滨栖息地中，田鼠占据了优势地位。栖息地定位和种间相互作用可能参与了褐斑潜蝇和白纹伊蚊的分布格局。在沙丘地带的演替中，随着系列阶段灌木盖度的增加，白毛委陵菜的丰度增加。白对虾的再捕获距离与种群大小和灌木盖度呈负相关。与障碍滩潮湿的栖息地有关的哈德逊乌斯，其栖息地要么很大，要么不稳定。
Studies were conducted at Island Beach State Park, New Jersey, to determine the distributional patterns and movements of small mammals in a barrier beach habitat. Species captured were Peromyscus leucopus, Microtus pennsylvanicus, Zapus hudsonius, Mus musculus, and Sorex cinereus. Most barrier beach communities contained a greater abundance of small mammals than reported from the New Jersey mainland. the distribution of small mammals at Island Beach was related to the topographically controlled pattern of environment and vegetation. Few mice foraged in the sparse cover of the highest dune zone elevations. Peromyscus leucopus occupied the thicket and woodland habitats of the more protected dune areas while Microtus pennsylvanicus dominated those hydric bayshore habitats containing dense herbaceous cover. Both habitat orientation and interspecific interactions may be involved in the distributional pattern of M. pennsylvanicus and P. leucopus. Succession in dune zone locations results in an increased abundance of P. leucopus as shrub cover increased during seral stages. Recapture distances of P. leucopus were inversely related to both population size and density of shrub cover. Zapus hudsonius, which was associated with moist habitats of the barrier beach, had either large or unstable home ranges.