Food and Microhabitat Utilization by Grasshoppers from Arid Grasslands: Comparisons with Neutral Models
Food and Microhabitat Utilization by Grasshoppers from Arid Grasslands: Comparisons with Neutral Models
复制标题
干旱草原蝗虫的食物和微生境利用：与中性模型的比较
DOI：
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发表时间：
1980
期刊：
影响因子：
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通讯作者：
L. Lawlor
中科院分区：
文献类型：
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作者：
A. Joern;L. Lawlor
通过将实际资源利用与中性模型进行比较，研究了干旱草地蚱蜢群落食物和微生境利用模式。分析中包含了各种中立模型，从完全随机的资源利用到保留大部分原始社区结构的模型。与完全随机的资源利用比较表明，在饮食和微生境生态位方面都存在生物相互作用。实际群落资源利用的平均相似性远低于类似的完全随机群落，这表明这些物种的资源利用是高度分散的（平均而言）。然而，平均生态位重叠并没有尽可能低，这表明其他因素，如对资源利用的系统发育限制或共同进化的相互作用，影响一个群落对资源的总体利用是重要的。请参阅JSTOR的全文文章
Patterns of food and microhabitat use in arid grassland grasshopper communities are examined by comparing actual resource use with neutral models. A variety of neutral models is included in the analysis ranging from completely randomized resource utilization to models retaining much of the original community structure. Comparisons with resource utilization which are completely randomized indicate that biotic interactions are present for both diet and microhabitat niche dimensions. Average similarity in resource use of actual communities is much lower than in the analogous, completely randomized communities which suggests resource utilization by these species is hyperdispersed (on the average). However, mean niche overlap is not as low as possible which suggests other factors such as phylogenetic constraints on resource use or coevolved interactions which affect overall use of resources by a community are important. See full-text article at JSTOR