Sperm competition and diversity in rodent copulatory behaviour.

@article{Stockley2004SpermCA,
  title={Sperm competition and diversity in rodent copulatory behaviour.},
  author={Paula Stockley and Brian T. Preston},
  journal={Journal of evolutionary biology},
  year={2004},
  volume={17 5},
  pages={1048-57}
}
The copulatory behaviour of male mammals is characterized by striking diversity in patterns of copulatory stimulation and ejaculation frequency. We conducted comparative analyses of rodents to investigate the potential influence of sperm competition in the evolution of copulatory behaviour. We found that increasing sperm competition is associated with faster rates of stimulation and earlier ejaculation among species in which males perform multiple intromissions prior to ejaculation, but with no… CONTINUE READING

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