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首页> 外文期刊>Ecology letters >Local adaptation and the geometry of host-parasite coevolution
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Local adaptation and the geometry of host-parasite coevolution

机译：局部适应和宿主-寄生虫协同进化的几何

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摘要

Metapopulation dynamics can strongly affect the ecological and evolutionary processes involved in host-parasite interactions. Here, I analyse a deterministic host-parasite coevolutionary model and derive analytic approximations for the level of local adaptation as a function of (1) host migration rate, (2) parasite migration rate, (3) parasite specificity and (4) parasite virulence. This analysis confirms the results of previous simulation studies: the difference between host and parasite migration rates may explain the level of local adaptation of both species. I also show that both higher specificity and higher virulence generally lead to higher levels of local adaptation of the species which is already ahead in the coevolutionary arms race. The present analysis also provides a simple geometric interpretation for local adaptation which captures the complexity of the temporal dynamics of host-parasite coevolution.
机译：种群动态可以极大地影响宿主与寄生虫相互作用中涉及的生态和进化过程。在这里，我将分析确定性的宿主-寄生虫协同进化模型，并得出与（1）宿主迁移率，（2）寄生虫迁移率，（3）寄生虫特异性和（4）寄生虫毒力有关的局部适应水平的解析近似值。 。该分析证实了先前模拟研究的结果：寄主和寄生虫迁移率之间的差异可能解释了这两种物种的局部适应水平。我还表明，更高的特异性和更高的毒力通常会导致该物种在本地的适应水平更高，而这在协同进化军备竞赛中已经遥遥领先。本分析还为局部适应提供了一种简单的几何解释，该解释捕获了宿主-寄生虫协同进化的时间动态复杂性。

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