A comparative study on the evolution of reversed size dimorphism in monogamous waders

  title={A comparative study on the evolution of reversed size dimorphism in monogamous waders},
  author={Jordi Figuerola},
  journal={Biological Journal of The Linnean Society},
  • J. Figuerola
  • Published 1 May 1999
  • Biology, Environmental Science
  • Biological Journal of The Linnean Society
Sexual dimorphism in size is common in birds. Males are usually larger than females, although in some taxa reversed size dimorphism (RSD) predominates. Whilst direct dimorphism is attributed to sexual selection in males giving greater reproductive access to females, the evolutionary causes of RSD are still unclear. Four different hypotheses could explain the evolution of RSD in monogamous birds: (1) The «energy storing» hypothesis suggests that larger females could accumulate more reserves at… 

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