DOI: 10.1111/ele.12573
Scopus记录号: 2-s2.0-84960099534
论文题名: Costs of fear: Behavioural and life-history responses to risk and their demographic consequences vary across species
作者: Lamanna J.A. ; Martin T.E.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2016
卷: 19, 期: 4 起始页码: 403
结束页码: 413
语种: 英语
英文关键词: Anti-predator
; Behaviour
; Birds
; Demographic cost
; Dependent offspring
; Development
; Growth
; Life history
; Predation
; Reproductive success
Scopus关键词: Aves
; Passeri
; animal
; animal behavior
; biological model
; cost benefit analysis
; demography
; fear
; physiology
; songbird
; species difference
; Animals
; Behavior, Animal
; Cost-Benefit Analysis
; Demography
; Fear
; Models, Biological
; Songbirds
; Species Specificity
英文摘要: Behavioural responses to reduce predation risk might cause demographic 'costs of fear'. Costs differ among species, but a conceptual framework to understand this variation is lacking. We use a life-history framework to tie together diverse traits and life stages to better understand interspecific variation in responses and costs. We used natural and experimental variation in predation risk to test phenotypic responses and associated demographic costs for 10 songbird species. Responses such as increased parental attentiveness yielded reduced development time and created benefits such as reduced predation probability. Yet, responses to increased risk also created demographic costs by reducing offspring production in the absence of direct predation. This cost of fear varied widely across species, but predictably with the probability of repeat breeding. Use of a life-history framework can aid our understanding of potential demographic costs from predation, both from responses to perceived risk and from direct predation mortality. © 2016 John Wiley & Sons Ltd/CNRS. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107779
Appears in Collections: 气候减缓与适应
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作者单位: Montana Cooperative Wildlife Research Unit, University of Montana, Missoula, MT, United States; US Geological Survey, Montana Cooperative Wildlife Research Unit, University of Montana, Missoula, MT, United States
Recommended Citation:
Lamanna J.A.,Martin T.E.. Costs of fear: Behavioural and life-history responses to risk and their demographic consequences vary across species[J]. Ecology Letters,2016-01-01,19(4)