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      Opposing effects of competitive exclusion on the phylogenetic structure of communities.

      1 ,
      Ecology letters
      Wiley

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          Abstract

          Though many processes are involved in determining which species coexist and assemble into communities, competition is among the best studied. One hypothesis about competition's contribution to community assembly is that more closely related species are less likely to coexist. Though empirical evidence for this hypothesis is mixed, it remains a common assumption in certain phylogenetic approaches for inferring the effects of environmental filtering and competitive exclusion. Here, we relate modern coexistence theory to phylogenetic community assembly approaches to refine expectations for how species relatedness influences the outcome of competition. We argue that two types of species differences determine competitive exclusion with opposing effects on relatedness patterns. Importantly, this means that competition can sometimes eliminate more different and less related taxa, even when the traits underlying the relevant species differences are phylogenetically conserved. Our argument leads to a reinterpretation of the assembly processes inferred from community phylogenetic structure.

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          Author and article information

          Journal
          Ecol Lett
          Ecology letters
          Wiley
          1461-0248
          1461-023X
          Sep 2010
          : 13
          : 9
          Affiliations
          [1 ] The University of Queensland, School of Biological Sciences, Brisbane, 4072 Queensland, Australia. m.mayfield@uq.edu.au
          Article
          ELE1509
          10.1111/j.1461-0248.2010.01509.x
          20576030
          53848a9c-7bfe-4602-8fb9-1bd73afbcb38
          History

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