Biodiversity and the Lotka-Volterra theory of species interactions: open systems and the distribution of logarithmic densities.

Journal Article (Journal Article)

Theoretical interest in the distributions of species abundances observed in ecological communities has focused recently on the results of models that assume all species are identical in their interactions with one another, and rely upon immigration and speciation to promote coexistence. Here we examine a one-trophic level system with generalized species interactions, including species-specific intraspecific and interspecific interaction strengths, and density-independent immigration from a regional species pool. Comparisons between results from numerical integrations and an approximate analytic calculation for random communities demonstrate good agreement, and both approaches yield abundance distributions of nearly arbitrary shape, including bimodality for intermediate immigration rates.

Full Text

Duke Authors

Cited Authors

  • Wilson, WG; Lundberg, P

Published Date

  • September 2004

Published In

Volume / Issue

  • 271 / 1551

Start / End Page

  • 1977 - 1984

PubMed ID

  • 15347523

Pubmed Central ID

  • PMC1691812

Electronic International Standard Serial Number (EISSN)

  • 1471-2954

International Standard Serial Number (ISSN)

  • 0962-8452

Digital Object Identifier (DOI)

  • 10.1098/rspb.2004.2809


  • eng