Small Mammal Community: Habitat Preference and Effects after Selective Logging
Small Mammal Community: Habitat Preference and Effects after Selective Logging
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小型哺乳动物群落：栖息地偏好和选择性采伐后的影响
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
N. Hussein
中科院分区：
文献类型：
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作者：
M. Yasuda;N. Ishii;T. Okuda;N. Hussein
摘要：本研究的小型哺乳动物在马来西亚的热带森林试图获得一些深入了解它们的栖息地偏好之间的相关性。一个10公顷的研究地块，包括小学，老再生，河岸森林建立在Pasoh森林保护区（Pasoh FR）和每月活诱捕采用标记和重新捕获方法进行了为期四年。十三的17种小型哺乳动物占主导地位的Pasoh FR，包括月鼠，树鼩，松鼠，大鼠和豪猪，进行了统计分析，以确定他们的栖息地偏好。根据其在3种生境中的丰度，将其分为4类：1）原始森林种、2）更新森林种、3）河岸种和4）普遍存在种，其中松鼠类均为原始森林种。几个环境因素可以解释观察到的小型哺乳动物的栖息地偏好。研究结果表明，原始森林生境食物资源丰富，空间异质性强，因此其承载力高于其他两种生境。虽然自1950年代进行选择性采伐以来已经过去了40年，但在小型哺乳动物群落方面，受干扰森林和未受干扰森林之间仍然存在明显差异。食物资源和空间异质性可能是不同生境中哺乳动物群落差异的主要原因。
Abstract: The present study of small mammals in a Malaysian tropical forest attempts to gain some insight into the correlation between their habitat preferences. A 10 ha study plot including primary, old regenerating, and riparian forests were established in the Pasoh Forest Reserve (Pasoh FR) and monthly live trapping employing a mark-and-recapture method was conducted over a period of four years. Thirteen out of the 17 species of the small mammals predominating at the Pasoh FR, including moonrat, treeshrew, squirrels, rats and porcupines, were subjected to statistical analysis to determine their habitat preferences. Based on their abundance in the three habitats, they were divided into four categories: 1) primary forest species, 2) regenerating forest species, 3) riparian species and 4) ubiquitous species, with all the squirrel species categorised as primary forest species. Several environmental factors may explain the observed habitat preferences of small mammals. The present results indicated that the primary forest habitat is rich in food resources and spatial heterogeneity, and should thus provide a higher carrying capacity than the other two habitats. Although 40 years have elapsed since selective logging was carried out in the 1950s, there are still distinct differences between disturbed and undisturbed forests with respect to the small mammal community. Food resources and spatial heterogeneity may account for the differences in mammalian community among the habitats.