Species divergence and trait convergence in experimental plant community assembly

T. Fukami, T.M. Bezemer, S.R. Mortimer, W.H. van der Putten

Research output: Contribution to journalArticleAcademicpeer-review

441 Citations (Scopus)

Abstract

Despite decades of research, it remains controversial whether ecological communities converge towards a common structure determined by environmental conditions irrespective of assembly history. Here, we show experimentally that the answer depends on the level of community organization considered. In a 9-year grassland experiment, we manipulated initial plant composition on abandoned arable land and subsequently allowed natural colonization. Initial compositional variation caused plant communities to remain divergent in species identities, even though these same communities converged strongly in species traits. This contrast between species divergence and trait convergence could not be explained by dispersal limitation or community neutrality alone. Our results show that the simultaneous operation of trait-based assembly rules and species-level priority effects drives community assembly, making it both deterministic and historically contingent, but at different levels of community organization
Original languageEnglish
Pages (from-to)1283-1290
JournalEcology Letters
Volume8
Issue number12
DOIs
Publication statusPublished - 2005

Keywords

  • functional diversity
  • natural communities
  • ecosystem processes
  • desert rodents
  • succession
  • rules
  • restoration
  • ecology
  • stability
  • fields

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