Role of sexual and natural selection in evolution of body size and shape: a phylogenetic study of morphological radiation in grouse.

@article{Drovetski2006RoleOS,
  title={Role of sexual and natural selection in evolution of body size and shape: a phylogenetic study of morphological radiation in grouse.},
  author={Sergei V Drovetski and Sievert Rohwer and Nicolle A Mode},
  journal={Journal of evolutionary biology},
  year={2006},
  volume={19 4},
  pages={1083-91}
}
We use standardized independent contrasts (SICs) to elucidate the effect of ecology and mating systems on morphological radiation in grouse. The analysis of SICs for 38 skeletal measurements from 20 taxa, showed that changes in mating system had a significant effect on body size of both sexes. Sexual size dimorphism in grouse is consistent with Rensch's rule; the slope of the regression of male vs. female size SICs was 1.4, significantly >1. Changes in habitat were associated with accelerated… CONTINUE READING