气候变化领域集成服务门户(CCPortal): Shoaling guppies evade predation but have deadlier parasites

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DOI	10.1038/s41559-022-01772-5
	Shoaling guppies evade predation but have deadlier parasites
	Walsman J.C.; Janecka M.J.; Clark D.R.; Kramp R.D.; Rovenolt F.; Patrick R.; Mohammed R.S.; Konczal M.; Cressler C.E.; Stephenson J.F.
发表日期	2022
ISSN	2397-334X
英文摘要	Parasites exploit hosts to replicate and transmit, but overexploitation kills both host and parasite. Predators may shift this cost–benefit balance by consuming infected hosts or changing host behaviour, but the strength of these effects remains unclear. Here we use field and lab data on Trinidadian guppies and their Gyrodactylus spp. parasites to show how differential predation pressure influences parasite virulence and transmission. We use an experimentally demonstrated virulence–transmission trade-off to parametrize a mathematical model in which host shoaling (as a means of anti-predator defence), increases contact rates and selects for higher virulence. Then we validate model predictions by collecting parasites from wild, Trinidadian populations; parasites from high-predation populations were more virulent in common gardens than those from low-predation populations. Broadly, our results indicate that reduced social contact selects against parasite virulence. ? 2022, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
来源期刊	Nature Ecology & Evolution
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/257163
作者单位	Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA, United States; Department of Life Sciences, University of the West Indies, St. Augustine, Trinidad and Tobago; Biology Department, Thompson Biology Lab, Williams College, Williamstown, MA, United States; Evolutionary Biology Group, Faculty of Biology, Adam Mickiewicz University, Poznań, Poland; School of Biological Sciences, University of Nebraska, Lincoln, NE, United States
推荐引用方式 GB/T 7714	Walsman J.C.,Janecka M.J.,Clark D.R.,et al. Shoaling guppies evade predation but have deadlier parasites[J],2022.
APA	Walsman J.C..,Janecka M.J..,Clark D.R..,Kramp R.D..,Rovenolt F..,...&Stephenson J.F..(2022).Shoaling guppies evade predation but have deadlier parasites.Nature Ecology & Evolution.
MLA	Walsman J.C.,et al."Shoaling guppies evade predation but have deadlier parasites".Nature Ecology & Evolution (2022).