Life-history traits evolution across distribution ranges: how the joint evolution of dispersal and mating system favor the evolutionary stability of range limits?

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• 作者：Shan Sun (12)
  Pierre-Olivier Cheptou (3) pierre-olivier.cheptou@cefe.cnrs.fr
• 关键词：Range limits &#8211 ; Metapopulation &#8211 ; Mating system &#8211 ; Dispersal
• 刊名：Evolutionary Ecology
• 出版年：2012
• 出版时间：July 2012
• 年：2012
• 卷：26
• 期：4
• 页码：771-778
• 全文大小：202.3 KB
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• 作者单位：1. Key Laboratory of Biodiversity and Biogeography, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201 People鈥檚 Republic of China2. Institute of Tibetan Plateau Research at Kunming, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201 People鈥檚 Republic of China3. UMR 5175, CEFE-Centre d鈥橢cologie Fonctionnelle et Evolutive (CNRS), 1919 Route de Mende, 34293 Montpellier Cedex 05, France
• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Life Sciences
  Evolutionary Biology
  Plant Sciences
  Human Genetics
  
• 出版者：Springer Netherlands
• ISSN：1573-8477

文摘

The question of the stability of distribution ranges of species is fundamental in ecology. However, the way in which stable distribution ranges are shaped by natural selection is still poorly studied. For a long time, botanists have studied empirically how self-fertilization and dispersal traits change from the centre to the periphery of species’ distribution ranges, but theoretical arguments are lacking. In this commentary, we use a recent evolutionary model by Cheptou and Massol (2009) that analyses the joint evolution of dispersal and the mating system in a metapopulation. Considering that distribution ranges may result in gradients in pollen limitation for plants, habitat availability, or inbreeding depression for plants, we analyse how the association of dispersal and self-fertilization varies across distribution ranges. Interestingly, we show that such gradients result in a change in both traits and may favor evolutionary stable range limits for plant distribution. Based on empirical and theoretical results, we discuss the plausibility of such gradients as a way to explain range limits in plants.