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  • 标题:Evolution of flowering decisions in a stochastic, density-dependent environment
  • 本地全文:下载
  • 作者:C. J. E. Metcalf ; K. E. Rose ; D. Z. Childs
  • 期刊名称:Proceedings of the National Academy of Sciences
  • 印刷版ISSN:0027-8424
  • 电子版ISSN:1091-6490
  • 出版年度:2008
  • 卷号:105
  • 期号:30
  • 页码:10466-10470
  • DOI:10.1073/pnas.0800777105
  • 语种:English
  • 出版社:The National Academy of Sciences of the United States of America
  • 摘要:Demography is central to both ecology and evolution, and characterizing the feedback between ecology and evolution is critical for understanding organisms' life histories and how these might evolve through time. Here, we show how, by combining a range of theoretical approaches with the statistical analysis of individually structured databases, accurate prediction of life history decisions is possible in natural density-regulated populations undergoing large fluctuations in demographic rates from year to year. Our predictions are remarkably accurate and statistically well defined. In addition, we show that the predicted trait values are evolutionarily and convergence stable and that protected polymorphisms are possible.
  • 关键词:adaptive dynamics ; Carlina vulgaris ; Carduus nutans ; coexistence ; relative nonlinearity of competition
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