气候变化领域集成服务门户(CCPortal): Behaviour moderates the impacts of food-web structure on species coexistence

CCPortal

DOI	10.1111/ele.13643
	Behaviour moderates the impacts of food-web structure on species coexistence
	Ho H.-C.; Tylianakis J.M.; Pawar S.
发表日期	2021
ISSN	1461023X
起始页码	298
结束页码	309
卷号	24 期号:2
英文摘要	How species coexistence (mathematical ‘feasibility’) in food webs emerges from species' trophic interactions remains a long-standing open question. Here we investigate how structure (network topology and body-size structure) and behaviour (foraging strategy and spatial dimensionality of interactions) interactively affect feasibility in food webs. Metabolically-constrained modelling of food-web dynamics based on whole-organism consumption revealed that feasibility is promoted in systems dominated by large-eat-small foraging (consumers eating smaller resources) whenever (1) many top consumers are present, (2) grazing or sit-and-wait foraging strategies are common, and (3) species engage in two-dimensional interactions. Congruently, the first two conditions were associated with dominance of large-eat-small foraging in 74 well-resolved (primarily aquatic) real-world food webs. Our findings provide a new, mechanistic understanding of how behavioural properties can modulate the effects of structural properties on species coexistence in food webs, and suggest that ‘being feasible’ constrains the spectra of behavioural and structural properties seen in natural food webs. © 2020 John Wiley & Sons Ltd.
关键词	Body-size structure ecological metabolic theory equilibrium feasibility food web food-web structure foraging behaviour foraging dimensionality foraging strategy network topology species coexistence
英文关键词	behavioral ecology; coexistence; dominance; feasibility study; food web; grazing; topology; two-dimensional modeling; animal; biological model; body size; food chain; predation; Animals; Body Size; Food Chain; Models, Biological; Predatory Behavior
语种	英语
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/204408
作者单位	Department of Life Sciences, Imperial College London, Silwood Park Campus, Ascot, SL5 7PY, United Kingdom; School of Biological Sciences, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
推荐引用方式 GB/T 7714	Ho H.-C.,Tylianakis J.M.,Pawar S.. Behaviour moderates the impacts of food-web structure on species coexistence[J],2021,24(2).
APA	Ho H.-C.,Tylianakis J.M.,&Pawar S..(2021).Behaviour moderates the impacts of food-web structure on species coexistence.Ecology Letters,24(2).
MLA	Ho H.-C.,et al."Behaviour moderates the impacts of food-web structure on species coexistence".Ecology Letters 24.2(2021).