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机构地区:[1]北京师范学院生物系
出 处:《北京师范学院学报(自然科学版)》1992年第4期69-77,共9页
摘 要:1990~1991年7~10月调查、分析和比较了北京市百花山自然保护区16种生境中鼠类群落的结构特征及其与环境的关系。结果表明:中华姬鼠、大林姬鼠和社鼠为本区的优势鼠种;鼠类群落的组成及其相似性水平受植被类型和垂直结构影响很大;群落的多样性主要取决于环境的优劣、异质性以及主导因子是否明显;群落的均匀性则更多地与环境的异质性有关。将鼠类群落的生物量分为三个数量等级,发现这种划分与环境的水分状况存在大致的平行关系。By analysing and comparing the data collected from July to October in1990-1991, the paper studied the structre of the sixteen rodent communitiesin Baihua Mountain Nature Sanctuary in Beijing and their relation to theirenviorment. The result showed that Apodemus draco, Apodemus peninsulae,and Rattus confucianus among them were three dominant species in this region;thecomposition and similarities of the communities mainly related to thevegetation types and vertical stratification; the diversity index varied withenviromental factors, such as fine or adverse, complex or simole, and whe-ther the dominant factors are obvious or no; while their evenness mainlyrelated to the complexity of their habitat. If rodent biomass is classifiedquantitatively into three groups, a rough parallel relations between theclassification and water regiome of relevant habitats.
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