Do male secondary sexual characters signal ejaculate quality? A meta-analysis.

@article{Mautz2013DoMS,
  title={Do male secondary sexual characters signal ejaculate quality? A meta-analysis.},
  author={Brian Mautz and Anders Pape M\oller and Michael D. Jennions},
  journal={Biological reviews of the Cambridge Philosophical Society},
  year={2013},
  volume={88 3},
  pages={669-82}
}
There are two reasons why researchers are interested in the phenotypic relationship between the expression of male secondary sexual characters (SSCs) and 'ejaculate quality' (defined as sperm/ejaculate traits that are widely assumed to increase female fertility and/or sperm competitiveness). First, if the relationship is positive then females could gain a direct benefit by choosing more attractive males for fertility assurance reasons ('the phenotype-linked fertility' hypothesis). Second, there… CONTINUE READING
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