DOI: 10.1111/ele.13677
论文题名: Density-dependent natural selection mediates harvest-induced trait changes
作者: Bouffet-Halle A. ; Mériguet J. ; Carmignac D. ; Agostini S. ; Millot A. ; Perret S. ; Motard E. ; Decenciere B. ; Edeline E.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2021
卷: 24, 期: 4 起始页码: 648
结束页码: 657
语种: 英语
中文关键词: 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
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 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166782
Appears in Collections: 气候变化与战略
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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
Recommended Citation:
Bouffet-Halle A.,Mériguet J.,Carmignac D.,et al. Density-dependent natural selection mediates harvest-induced trait changes[J]. Ecology Letters,2021-01-01,24(4)