globalchange  > 全球变化的国际研究计划
DOI: 10.1016/j.tree.2014.08.006
论文题名:
When less is more: Positive population-level effects of mortality
作者: Schröder A.; van Leeuwen A.; Cameron T.C.
刊名: Trends in Ecology and Evolution
ISSN: 1695347
出版年: 2014
卷: 29, 期:11
起始页码: 614
结束页码: 624
语种: 英语
英文关键词: Biomass overcompensation ; Consumer-resource model ; Density dependence ; Fisheries ; Hydra effect ; Mortality ; Numerical response ; Pest control ; Population dynamics ; Population management ; Predation ; Size-structure ; Stage-structure
Scopus关键词: density dependence ; fishery ; life history trait ; mortality ; numerical model ; pest control ; physiological response ; population modeling ; population structure ; predation ; size structure ; Hydra ; animals ; biomass ; Life Cycle Stages ; Models, Theoretical ; Mortality ; Population Density ; Population Dynamics ; Animals ; Biomass ; Life Cycle Stages ; Models, Theoretical ; Mortality ; Population Density ; Population Dynamics
英文摘要: Experimental and theoretical studies show that mortality imposed on a population can counter-intuitively increase the density of a specific life-history stage or total population density. Understanding positive population-level effects of mortality is advancing, illuminating implications for population, community, and applied ecology. Reconciling theory and data, we found that the mathematical models used to study mortality effects vary in the effects predicted and mechanisms proposed. Experiments predominantly demonstrate stage-specific density increases in response to mortality. We argue that the empirical evidence supports theory based on stage-structured population models but not on unstructured models. We conclude that stage-specific positive mortality effects are likely to be common in nature and that accounting for within-population individual variation is essential for developing ecological theory. © 2014 Elsevier Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/67325
Appears in Collections:全球变化的国际研究计划
气候变化与战略

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作者单位: Department 4: Biology and Ecology of Fishes, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 310, Berlin, Germany; Department of Ecology and Evolutionary Biology, Princeton University, 106A Guyot Hall, Princeton, NJ, United States; School of Biological Sciences, University of Essex, Colchester, United Kingdom

Recommended Citation:
Schröder A.,van Leeuwen A.,Cameron T.C.. When less is more: Positive population-level effects of mortality[J]. Trends in Ecology and Evolution,2014-01-01,29(11)
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