DOI: 10.1111/ele.13643
论文题名: Behaviour moderates the impacts of food-web structure on species coexistence
作者: Ho H.-C. ; Tylianakis J.M. ; Pawar S.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2021
卷: 24, 期: 2 起始页码: 298
结束页码: 309
语种: 英语
中文关键词: 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
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. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166849
Appears in Collections: 气候变化与战略
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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
Recommended Citation:
Ho H.-C.,Tylianakis J.M.,Pawar S.. Behaviour moderates the impacts of food-web structure on species coexistence[J]. Ecology Letters,2021-01-01,24(2)