全球智库信息集成服务系统(G2TT): How trophic interaction strength depends on traits: A conceptual framework for representing multidimensional trophic niche spaces.

G2TT

来源类型	Article
规范类型	其他
DOI	10.1007/s12080-009-0049-1
	How trophic interaction strength depends on traits: A conceptual framework for representing multidimensional trophic niche spaces.
	Rossberg AG; Brannstrom Å; Dieckmann U
发表日期	2010
出处	Theoretical Ecology 3 (1): 13-24
出版年	2010
语种	英语
摘要	A key problem in community ecology is to understand how individual-level traits give rise to population-level trophic interactions. Here, we propose a synthetic framework based on ecological considerations to address this question systematically. We derive a general functional form for the dependence of trophic interaction coefficients on trophically relevant quantitative traits of consumers and resources. The derived expression encompasses-and thus allows a unified comparison of-several functional forms previously proposed in the literature. Furthermore, we show how a community's, potentially low-dimensional, effective trophic niche space is related to its higher-dimensional phenotypic trait space. In this manner, we give ecological meaning to the notion of the "dimensionality of trophic niche space." Our framework implies a method for directly measuring this dimensionality. We suggest a procedure for estimating the relevant parameters from empirical data and for verifying that such data matches the assumptions underlying our derivation.
主题	Evolution and Ecology (EEP)
关键词	Food webs Niche space Interaction strength Evolution
URL	http://pure.iiasa.ac.at/id/eprint/9277/
来源智库	International Institute for Applied Systems Analysis (Austria)
引用统计
资源类型	智库出版物
条目标识符	http://119.78.100.153/handle/2XGU8XDN/129160
推荐引用方式 GB/T 7714	Rossberg AG,Brannstrom Å,Dieckmann U. How trophic interaction strength depends on traits: A conceptual framework for representing multidimensional trophic niche spaces.. 2010.