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Emergence and maintenance of biodiversity in an evolutionary food-web model
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för matematik och matematisk statistik.
Laboratoire Ecologie & Evolution, Université Pierre et Marie Curie, Paris, France .
Department of Biology, McGill University, Montreal, Canada.
International Institute for Applied Systems Analysis (IIASA), Evolution and Ecology Program, Laxenburg, Austria.
2011 (engelsk)Inngår i: Theoretical Ecology, ISSN 1874-1738, Vol. 4, nr 4, s. 467-478Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

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.

sted, utgiver, år, opplag, sider
Springer Science+Business Media B.V., 2011. Vol. 4, nr 4, s. 467-478
Emneord [en]
Food-web structure, Biodiversity, Evolution, Coevolution, Adaptive dynamics, Adaptive radiation
HSV kategori
Identifikatorer
URN: urn:nbn:se:umu:diva-50106DOI: 10.1007/s12080-010-0089-6OAI: oai:DiVA.org:umu-50106DiVA, id: diva2:459592
Tilgjengelig fra: 2011-11-26 Laget: 2011-11-26 Sist oppdatert: 2018-06-08bibliografisk kontrollert

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