| DOI: | 10.1111/ele.12464
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| Scopus记录号: | 2-s2.0-84946400151
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| 论文题名: | Colonisation rate and adaptive foraging control the emergence of trophic cascades |
| 作者: | Fahimipour A.K.; Anderson K.E.
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| 刊名: | Ecology Letters
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| ISSN: | 1461023X
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| EISSN: | 1461-0248
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| 出版年: | 2015
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| 卷: | 18, 期:8 | | 起始页码: | 826
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| 结束页码: | 833
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| 语种: | 英语
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| 英文关键词: | Adaptive foraging
; Colonisation
; Food webs
; Trophic cascades
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| Scopus关键词: | adaptation
; colonization
; community structure
; fish
; food web
; foraging behavior
; numerical model
; predator-prey interaction
; prey preference
; trophic cascade
; Invertebrata
; animal
; appetite
; ecosystem
; fish
; food chain
; herbivory
; physiology
; predation
; stomach juice
; theoretical model
; Animals
; Appetitive Behavior
; Ecosystem
; Fishes
; Food Chain
; Gastrointestinal Contents
; Herbivory
; Models, Theoretical
; Predatory Behavior
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| 英文摘要: | Ecological communities are assembled and sustained by colonisation. At the same time, predators make foraging decisions based on the local availabilities of potential resources, which reflects colonisation. We combined field and laboratory experiments with mathematical models to demonstrate that a feedback between these two processes determines emergent patterns in community structure. Namely, our results show that prey colonisation rate determines the strength of trophic cascades - a feature of virtually all ecosystems - by prompting behavioural shifts in adaptively foraging omnivorous fish predators. Communities experiencing higher colonisation rates were characterised by higher invertebrate prey and lower producer biomasses. Consequently, fish functioned as predators when colonisation rate was high, but as herbivores when colonisation rate was low. Human land use is changing habitat connectivity worldwide. A deeper quantitative understanding of how spatial processes modify individual behaviour, and how this scales to the community level, will be required to predict ecosystem responses to these changes. © 2015 John Wiley & Sons Ltd/CNRS. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/107925
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Department of Biology, University of California, RiversideCA, United States
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| Recommended Citation: | |
Fahimipour A.K.,Anderson K.E.. Colonisation rate and adaptive foraging control the emergence of trophic cascades[J]. Ecology Letters,2015-01-01,18(8)
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