Territory size in wintering Sanderlings: the effects of prey abundance and intruder density
Territory size in wintering Sanderlings: the effects of prey abundance and intruder density
复制标题
越冬鹬的领地大小：猎物丰度和入侵者密度的影响
DOI：
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发表时间：
1979
期刊：
影响因子：
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通讯作者：
F. A. Pitelka
中科院分区：
文献类型：
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作者：
J. Myers;P. Connors;F. A. Pitelka
海洋海滩上桑德灵(Calidris Alba)的冬季领土大小与猎物密度成反比。多变量分析表明，这种负相关的结果是间接的，因为更多的入侵者被吸引到猎物密度更高的地区，而入侵者频率的增加使领土防御成本更高。一旦捕食者密度和入侵者密度之间的交互作用被统计控制，猎物密度对领地大小没有影响。
Winter territory size in the Sanderling (Calidris alba) on marine beaches varies inversely with prey density. Multivariate analyses suggest that the inverse correlation results indirectly because more intruders are attracted to areas of higher prey density, and increased intruder frequency makes territorial defense more costly. Once the interaction between prey density and intruder density is controlled statistically, prey density has no effect on territory size.