The evolution of parasite manipulation of host dispersal
The evolution of parasite manipulation of host dispersal
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DOI：
10.1098/rspb.2005.3412
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发表时间：
2006-05-07
影响因子：
4.7
通讯作者：
Wilson, WG
中科院分区：
文献类型：
--
作者：
Lion, S;van Baalen, M;Wilson, WG
我们使用空间显式的基于个体的模拟来研究寄生虫对宿主扩散行为的操纵的进化。我们发现，当扩散是局部的时，寄生虫总是从增加宿主的扩散速度中获益，尽管进化的结果取决于成本与收益的比率。然而，当传播可以是非局部的时，我们表明，由于宿主-寄生虫相互作用的内在空间动力学，即使操作成本不高，投资于宿主的中间扩散距离的寄生虫也是有利的。我们的分析强调了生态空间动力学在进化过程中的关键作用，并揭示了寄生虫操纵宿主扩散的理论可能性。
We investigate the evolution of manipulation of host dispersal behaviour by parasites using spatially explicit individual-based simulations. We find that when dispersal is local, parasites always gain from increasing their hosts' dispersal rate, although the evolutionary outcome is determined by the costs-to-benefits ratio. However, when dispersal can be non-local, we show that parasites investing in an intermediate dispersal distance of their hosts are favoured even when the manipulation is not costly, due to the intrinsic spatial dynamics of the host-parasite interaction. Our analysis highlights the crucial importance of ecological spatial dynamics in evolutionary processes and reveals the theoretical possibility that parasites could manipulate their hosts' dispersal.