| DOI: | 10.1111/ele.12633
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| Scopus记录号: | 2-s2.0-84978159537
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| 论文题名: | A role for brain size and cognition in food webs |
| 作者: | Edmunds N.B.; Laberge F.; McCann K.S.
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| 刊名: | Ecology letters
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| ISSN: | 14610248
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| EISSN: | 1461-0248
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| 出版年: | 2016
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| 卷: | 19, 期:8 | | 起始页码: | 948
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| 结束页码: | 955
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| 语种: | 英语
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| 英文关键词: | Cognitive ability
; food webs
; habitat coupling
; relative brain size
; trophic position
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| Scopus关键词: | anatomy and histology
; animal
; cognition
; fish
; food chain
; organ size
; physiology
; predation
; Animals
; Cognition
; Fishes
; Food Chain
; Organ Size
; Predatory Behavior
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| 英文摘要: | Predators tend to be large and mobile, enabling them to forage in spatially distinct food web compartments (e.g. littoral and pelagic aquatic macrohabitats). This feature can stabilise ecosystems when predators are capable of rapid behavioural response to changing resource conditions in distinct habitat compartments. However, what provides this ability to respond behaviourally has not been quantified. We hypothesised that predators require increased cognitive abilities to occupy their position in a food web, which puts pressure to increase brain size. Consistent with food web theory, we found that fish relative brain size increased with increased ability to forage across macrohabitats and increased relative trophic positions in a lacustrine food web, indicating that larger brains may afford the cognitive capacity to exploit various habitats flexibly, thus contributing to the stability of whole food webs. © 2016 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/107741
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Department of integrative Biology, University of Guelph, Guelph, ON, N1G 2W1, Canada
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| Recommended Citation: | |
Edmunds N.B.,Laberge F.,McCann K.S.. A role for brain size and cognition in food webs[J]. Ecology letters,2016-01-01,19(8)
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