Genetic evidence for sexual selection in black ratsnakes, Elaphe obsoleta

@article{BlouinDemers2005GeneticEF,
  title={Genetic evidence for sexual selection in black ratsnakes, Elaphe obsoleta},
  author={G. Blouin-Demers and H. Gibbs and P. J. Weatherhead},
  journal={Animal Behaviour},
  year={2005},
  volume={69},
  pages={225-234}
}
We investigated benefits of polyandry and phenotypic correlates of male mating success in black ratsnakes. We used 10 microsatellite loci to identify the sires of 375 hatchlings from 34 clutches with known mothers. Multiple paternity occurred in 88% of clutches, despite the fact that ratsnakes mate when dispersed. The incidence of multiple paternity did not vary with female size or with clutch size. Hatching success tended to be higher in multiply sired clutches, but offspring from these… Expand
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