Emergence and maintenance of biodiversity in an evolutionary food-web model

Brannstrom A, Loeuille N, Loreau M, & Dieckmann U (2011). Emergence and maintenance of biodiversity in an evolutionary food-web model. Theoretical Ecology 4 (4): 467-478. DOI:10.1007/s12080-010-0089-6.

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Abstract

Ecological communities emerge as a consequence of gradual evolution, speciation, and immigration. In this study, we explore how these processes and the structure of the evolved food webs are affected by species-level properties. Using a model of biodiversity formation that is based on body size as the evolving trait and incorporates gradual evolution and adaptive radiation, we investigate how conditions for initial diversification relate to the eventual diversity of a food web. We also study how trophic interactions, interference competition, and energy availability affect a food web's maximum trophic level and contrast this with conditions for high diversity. We find that there is not always a positive relationship between conditions that promote initial diversification and eventual diversity, and that the most diverse food webs often do not have the highest trophic levels.

Item Type: Article
Uncontrolled Keywords: Food-web structure; Biodiversity; Evolution; Coevolution; Adaptive dynamics; Adaptive radiation
Research Programs: Evolution and Ecology (EEP)
Bibliographic Reference: Theoretical Ecology; 4(4):467-478 (November 2011) (Published online 26 August 2010)
Depositing User: IIASA Import
Date Deposited: 15 Jan 2016 08:45
Last Modified: 26 Feb 2016 12:58
URI: http://pure.iiasa.ac.at/9510

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