Theoretical Ecology

, Volume 4, Issue 4, pp 467–478

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

  • Åke Brännström
  • Nicolas Loeuille
  • Michel Loreau
  • Ulf Dieckmann
Original Paper

DOI: 10.1007/s12080-010-0089-6

Cite this article as:
Brännström, Å., Loeuille, N., Loreau, M. et al. Theor Ecol (2011) 4: 467. doi:10.1007/s12080-010-0089-6


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.


Food-web structure Biodiversity Evolution Coevolution Adaptive dynamics Adaptive radiation 

Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  • Åke Brännström
    • 1
    • 2
  • Nicolas Loeuille
    • 3
  • Michel Loreau
    • 4
  • Ulf Dieckmann
    • 2
    • 5
  1. 1.Department of Mathematics and Mathematical StatisticsUmeå UniversityUmeåSweden
  2. 2.International Institute for Applied Systems Analysis (IIASA)Evolution and Ecology ProgramLaxenburgAustria
  3. 3.Laboratoire Ecologie & EvolutionUniversité Pierre et Marie CurieParis Cedex 05France
  4. 4.Department of BiologyMcGill UniversityMontrealCanada
  5. 5.Section Theoretical BiologyInstitute of Biology Leiden UniversityLeidenThe Netherlands

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