Small Mammal Community Structure in North American Grasslands
Small Mammal Community Structure in North American Grasslands
复制标题
北美草原小型哺乳动物群落结构
DOI：
--
复制
发表时间：
1979
期刊：
影响因子：
--
通讯作者：
E. Birney
中科院分区：
文献类型：
--
作者：
W. Grant;E. Birney
利用在4年期间收集的数据，在9个北美草原类型的小型哺乳动物群落的结构进行定量研究。每种草原类型中的小型哺乳动物根据物种、大小、繁殖策略、生活形式、活动的季节性和饮食被分成组。所观察到的动物区系组成的时空格局与不同草原生态系统的结构差异有关。被认为最重要的结构差异主要是与纬度梯度和湿度梯度有关的差异。小型哺乳动物群落组成的时间变化是所有草地类型的特征。时间变化的程度是不容易相关的结构差异的草原研究。
The structure of small mammal communities in nine North American grassland types is examined quantitatively utilizing data collected during a 4-year period. Small mammals in each grassland type are divided into groups according to species, size, reproductive strategy, life form, seasonality of activity, and diet. Observed spatio-temporal patterns of faunal composition are related to differences in structure of the different grassland ecosystems. The structural differences identified as being most important are primarily those related to latitudinal and moisture gradients. Temporal variability of small mammal community composition is characteristic of all grassland types. The degree of temporal variability is not easily related to structural differences of the grasslands studied.