气候变化领域集成服务门户(CCPortal): A role for brain size and cognition in food webs

CCPortal

DOI	10.1111/ele.12633
	A role for brain size and cognition in food webs
	Edmunds N.B.; Laberge F.; McCann K.S.
发表日期	2016
ISSN	1461-023X
EISSN	1461-0248
卷号	19 期号:8
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.
英文关键词	Cognitive ability; food webs; habitat coupling; relative brain size; trophic position
学科领域	anatomy and histology; animal; cognition; fish; food chain; organ size; physiology; predation; Animals; Cognition; Fishes; Food Chain; Organ Size; Predatory Behavior
语种	英语
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
来源期刊	Ecology letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/118509
作者单位	Department of integrative Biology, University of Guelph, Guelph, ON, N1G 2W1, Canada, Canada
推荐引用方式 GB/T 7714	Edmunds N.B.,Laberge F.,McCann K.S.. A role for brain size and cognition in food webs[J],2016,19(8).
APA	Edmunds N.B.,Laberge F.,&McCann K.S..(2016).A role for brain size and cognition in food webs.Ecology letters,19(8).
MLA	Edmunds N.B.,et al."A role for brain size and cognition in food webs".Ecology letters 19.8(2016).