期刊
AMERICAN NATURALIST
卷 181, 期 5, 页码 700-706出版社
UNIV CHICAGO PRESS
DOI: 10.1086/670008
关键词
invasion; spatial selection; kin competition; dispersal evolution; range dynamics; individual-based model
资金
- German Science Foundation [HO 2051/3-1]
- German Excellence Initiative
Current theory explains accelerating invasions with increased levels of dispersal as being caused by spatial selection. Here we argue that another selective force, strong kin competition resulting from high relatedness due to subsequent founder effects at the expanding margin, is of at least comparable importance for dispersal evolution during invasions. We test this hypothesis with individual-based simulations of a spatially structured population invading empty space. To quantify the relative contribution of kin competition to dispersal evolution, we contrast two scenarios, one including kin effects and one excluding them without influencing spatial selection. We find that kin competition is a major determinant for dispersal evolution at invasion fronts, especially under environmental conditions that favor a pronounced kin structure (i.e., small patches, low environmental stochasticity, and high patch isolation). We demonstrate the importance of kin competition and thus biotic influences on dispersal evolution during invasions.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据