Sex-role reversal in vertebrates: behavioural and endocrinological accounts

  title={Sex-role reversal in vertebrates: behavioural and endocrinological accounts},
  author={Marcel Eens and Rianne Pinxten},
  journal={Behavioural Processes},
Sex-role reversal occurs when females compete more intensely than males for access to mates. In this paper, we survey the occurrence of sex-role reversal in vertebrates: we focus on behavioural aspects of sex-role reversal and we examine possible endocrinological correlates of this phenomenon. The best documented cases among vertebrates of sex-role reversal occur in fish and birds. In nearly all sex-role reversed species or populations, females have higher potential reproductive rates than… CONTINUE READING
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