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Evidence of climatic niche shift during biological invasion

  • Broennimann, Olivier Department of Ecology and Evolution, University of Lausanne, Switzerland
  • Treier, Urs A. Unit of Ecology and Evolution, Department of Biology, University of Fribourg, Switzerland - Department of Biological Sciences, Systematic Botany, University of Aarhus, Denmark
  • Müller-Schärer, Heinz Unit of Ecology and Evolution, Department of Biology, University of Fribourg, Switzerland
  • Thuiller, W. Laboratoire d'Ecologie Alpine, UMR-CNRS 5553, Université Joseph Fourier, Grenoble, France
  • Peterson, A. T. The University of Kansas, Lawrence, KA, USA
  • Guisan, Antoine Department of Ecology and Evolution, University of Lausanne, Switzerland
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    25.06.2007
Published in:
  • Ecology Letters. - 2007, vol. 10, no. 8, p. 701-709
biological invasion
centaurea maculosa
climate matching
niche conservatism
niche shift
niche-based models
Spotted Knapweed
English Niche-based models calibrated in the native range by relating species observations to climatic variables are commonly used to predict the potential spatial extent of species’ invasion. This climate matching approach relies on the assumption that invasive species conserve their climatic niche in the invaded ranges. We test this assumption by analysing the climatic niche spaces of Spotted Knapweed in western North America and Europe. We show with robust cross-continental data that a shift of the observed climatic niche occurred between native and non-native ranges, providing the first empirical evidence that an invasive species can occupy climatically distinct niche spaces following its introduction into a new area. The models fail to predict the current invaded distribution, but correctly predict areas of introduction. Climate matching is thus a useful approach to identify areas at risk of introduction and establishment of newly or not-yet-introduced neophytes, but may not predict the full extent of invasions.
Faculty
Faculté des sciences et de médecine
Department
Département de Biologie
Language
  • English
Classification
Biological sciences
License
License undefined
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/300357
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