Evidence for the existence of a robust pattern of prey selection in food webs.

Evidence for the existence of a robust pattern of prey selection in food webs. Research Abstract Details 

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Evidence for the existence of a robust pattern of prey selection in food webs. Abstract Text:

Daniel B Stouffer,Juan Camacho,Wenxin Jiang, Amaral,Daniel B Stouffer,Juan Camacho,Wenxin Jiang, Amaral,

Food webs aim to provide a thorough representation of the trophic interactions found in an ecosystem. The complexity of empirical food webs, however, is leading many ecologists to focus dynamic ecosystem studies on smaller microcosm or mesocosm studies based upon community modules, which comprise three to five species and the interactions likely to have ecological relevance. We provide here a structural counterpart to community modules. We investigate food-web 'motifs' which are n-species connected subgraphs found within the food web. Remarkably, we find that the over- and under-representation of three-species motifs in empirical food webs can be understood through comparison to a static food-web model, the niche model. Our result conclusively demonstrates that predation upon species with some 'characteristic' niche value is the prey selection mechanism consistent with the structural properties of empirical food webs.

Evidence for the existence of a robust pattern of prey selection in food webs. Publishing Authors By Initials

DB Stouffer,J Camacho,W Jiang,LA Amaral,DB Stouffer,J Camacho,W Jiang,LA Amaral,

For similar behavior and behavior mechanisms: behavior: behavior, animal: appetitive behavior: predatory behavior research abstracts see: behavior and behavior mechanisms: behavior: behavior, animal: appetitive behavior: predatory behavior research

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Evidence for the existence of a robust pattern of prey selection in food webs. Journal Published:

PUBLICATION TYPE: Research Support, U.S. Gov't,

Journal: Proceedings. Biological sciences / The Royal Socie

VOLUME: 274

Page Numbers: 1931-40

Journal Abbreviation: Proc. Biol. Sci.

ISSN: 0962-8452

DAY: 22

MONTH: Aug

YEAR: 2007

Evidence for the existence of a robust pattern of prey selection in food webs. Information

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LANGUAGE: eng

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Evidence for the existence of a robust pattern of prey selection in food webs. Keywords Mesh Terms:

KEYWORDS: Predatory Behavior

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Grant and Affiliation Information for Evidence for the existence of a robust pattern of prey selection in food webs.

AFFILIATION: Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL 60208, USA. d-stouffer@northwestern.edu

Country: England

AGENCY: United States PHS

GRANT: K25

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MEDLINETA: Proc Biol Sci

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