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On the origin of phylogenetic structure in competitive metacommunities

Author:
  • Mikael Pontarp
  • Jörgen Ripa
  • Per Lundberg
Publishing year: 2012
Language: English
Pages: 269-284
Publication/Series: Evolutionary Ecology Research
Volume: 14
Issue: 3
Document type: Journal article
Publisher: Evolutionary Ecology Ltd

Abstract english

Question: Under what circumstances are local communities and metacommunities phylogenetically clustered, overdispersed or random assemblages in terms of phylogenetic relatedness? Methods: An individual-based eco-evolutionary model was used to explain the link between system properties, ecological and evolutionary processes, and phylogenetic patterns in a spatially explicit competitive metacommunity. We simulated adaptive radiation dictated by local ecological dynamics (intra- and inter-specific competition) and dispersal. Phylogenies were constructed from the resulting metacommunities and phylogenetic community structure was analysed. Conclusions: Phylogenetic clustering, dictated by the relative rate between eco-evolutionary processes such as colonization, invasion, and local radiation, are more likely if both intra- and inter-habitat heterogeneity is high. The amount of dispersal between habitats is also an important structuring parameter, but mainly so if intra-habitat heterogeneity is high and inter-habitat heterogeneity is low. Our results are based on a more rigorous and quantitative analysis of the ecological and evolutionary conditions dictating the phylogenetic signal and explain the continuous variability of phylogenetic clustering and overdispersion found in natural systems.

Keywords

  • Biological Sciences
  • assembly
  • community
  • competition
  • ecology
  • evolution
  • phylogenetic
  • structure

Other

Published
  • ISSN: 1522-0613
Mikael Pontarp
E-mail: mikael [dot] pontarp [at] biol [dot] lu [dot] se

Researcher

Evolutionary ecology

Sölvegatn 37, Lund

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