气候变化领域集成服务门户(CCPortal): Trophic interaction modifications: an empirical and theoretical framework

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DOI	10.1111/ele.12824
	Trophic interaction modifications: an empirical and theoretical framework
	Terry J.C.D.; Morris R.J.; Bonsall M.B.
发表日期	2017
ISSN	1461-023X
EISSN	1461-0248
卷号	20 期号:10
英文摘要	Consumer–resource interactions are often influenced by other species in the community. At present these ‘trophic interaction modifications’ are rarely included in ecological models despite demonstrations that they can drive system dynamics. Here, we advocate and extend an approach that has the potential to unite and represent this key group of non-trophic interactions by emphasising the change to trophic interactions induced by modifying species. We highlight the opportunities this approach brings in comparison to frameworks that coerce trophic interaction modifications into pairwise relationships. To establish common frames of reference and explore the value of the approach, we set out a range of metrics for the ‘strength’ of an interaction modification which incorporate increasing levels of contextual information about the system. Through demonstrations in three-species model systems, we establish that these metrics capture complimentary aspects of interaction modifications. We show how the approach can be used in a range of empirical contexts; we identify as specific gaps in current understanding experiments with multiple levels of modifier species and the distributions of modifications in networks. The trophic interaction modification approach we propose can motivate and unite empirical and theoretical studies of system dynamics, providing a route to confront ecological complexity. © 2017 The Authors. Ecology Letters published by CNRS and John Wiley & Sons Ltd.
英文关键词	Food webs; indirect effects; interaction strength; mechanistic models; non-trophic interaction; population dynamics; trait-mediated indirect interaction; trophic interaction modification; trophic interactions
学科领域	ecological modeling; empirical analysis; experimental study; food web; numerical model; population dynamics; theoretical study; trophic interaction; biological model; ecology; food chain; nutritional status; Ecology; Food Chain; Models, Biological; Nutritional Status
语种	英语
scopus关键词	ecological modeling; empirical analysis; experimental study; food web; numerical model; population dynamics; theoretical study; trophic interaction; biological model; ecology; food chain; nutritional status; Ecology; Food Chain; Models, Biological; Nutritional Status
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/118325
作者单位	Department of Zoology, University of Oxford, Oxford, OX1 3PS, United Kingdom; Biological Sciences, Faculty of Natural and Environmental Sciences, University of Southampton, Life Sciences Building 85, Highfield Campus, Southampton, SO17 1BJ, United Kingdom; St. Peter's College, New Inn Hall Street, Oxford, OX1 2DL, United Kingdom
推荐引用方式 GB/T 7714	Terry J.C.D.,Morris R.J.,Bonsall M.B.. Trophic interaction modifications: an empirical and theoretical framework[J],2017,20(10).
APA	Terry J.C.D.,Morris R.J.,&Bonsall M.B..(2017).Trophic interaction modifications: an empirical and theoretical framework.Ecology Letters,20(10).
MLA	Terry J.C.D.,et al."Trophic interaction modifications: an empirical and theoretical framework".Ecology Letters 20.10(2017).