气候变化领域集成服务门户(CCPortal): Density-dependent natural selection mediates harvest-induced trait changes

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DOI	10.1111/ele.13677
	Density-dependent natural selection mediates harvest-induced trait changes
	Bouffet-Halle A.; Mériguet J.; Carmignac D.; Agostini S.; Millot A.; Perret S.; Motard E.; Decenciere B.; Edeline E.
发表日期	2021
ISSN	1461023X
起始页码	648
结束页码	657
卷号	24 期号:4
英文摘要	Rapid life-history changes caused by size-selective harvesting are often interpreted as a response to direct harvest selection against a large body size. However, similar trait changes may result from a harvest-induced relaxation of natural selection for a large body size via density-dependent selection. Here, we show evidence of such density-dependent selection favouring large-bodied individuals at high population densities, in replicated pond populations of medaka fish. Harvesting, in contrast, selected medaka directly against a large body size and, in parallel, decreased medaka population densities. Five years of harvesting were enough for harvested and unharvested medaka populations to inherit the classically predicted trait differences, whereby harvested medaka grew slower and matured earlier than unharvested medaka. We show that this life-history divergence was not driven by direct harvest selection for a smaller body size in harvested populations, but by density-dependent natural selection for a larger body size in unharvested populations. © 2021 John Wiley & Sons Ltd
关键词	Adaptive landscapes asymmetric competition body size cannibalism eco-evolutionary feedback loops energy allocation rules fisheries global change harvesting yields life-history change
英文关键词	body size; density dependence; finfish; fish; life history; natural selection; population density; Oryziinae; animal; body size; fish; genetic selection; human; phenotype; population density; Animals; Body Size; Fishes; Humans; Phenotype; Population Density; Selection, Genetic
语种	英语
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/204341
作者单位	Sorbonne Université, Université Paris Diderot, UPEC, CNRS, INRA, IRD, Institut d'Ecologie et des Sciences de l'Environnement de Paris (iEES-Paris), Paris, F-75252, France; CEREEP Ecotron Île-de-France, UMS CNRS/ENS 3194, 78 rue du Château, Saint-Pierre-lès-Nemours, 77140, France; Institut de Biologie de l'Ecole Normale Supérieure, CNRS, INSERM, PSL Research University, 46 rue d'Ulm, Paris, 75005, France; Centre d’Ecologie Fonctionnelle et Evolutive CEFE, UMR 5175, Campus CNRS, Université de Montpellier, Université Paul-Valéry Montpellier, Montpellier Cedex 5, France; ESE, Ecology and Ecosystem Health, INRAE, Agrocampus Ouest, Rennes, France
推荐引用方式 GB/T 7714	Bouffet-Halle A.,Mériguet J.,Carmignac D.,et al. Density-dependent natural selection mediates harvest-induced trait changes[J],2021,24(4).
APA	Bouffet-Halle A..,Mériguet J..,Carmignac D..,Agostini S..,Millot A..,...&Edeline E..(2021).Density-dependent natural selection mediates harvest-induced trait changes.Ecology Letters,24(4).
MLA	Bouffet-Halle A.,et al."Density-dependent natural selection mediates harvest-induced trait changes".Ecology Letters 24.4(2021).