FECUNDITY AND MHC AFFECTS EJACULATION TACTICS AND PATERNITY BIAS IN SAND LIZARDS

@inproceedings{Olsson2004FECUNDITYAM,
  title={FECUNDITY AND MHC AFFECTS EJACULATION TACTICS AND PATERNITY BIAS IN SAND LIZARDS},
  author={Mats Olsson and Thomas Madsen and Beata Ujvari and Erik Wapstra},
  year={2004}
}
We demonstrate that extending copulation enhances probability of paternity in sand lizards and that determinants of copulation duration depend on a males’ mating order (first or second). First males, with no information on presence of rivals, extend copulation when mating with a more fecund female. Second males, however, adjust copula duration in relation to a first male’s relatedness with his female, which there is reason to believe can be deduced from the MHC-related odor of the copulatory… 
Influence of major histocompatibility complex genotype on mating success in a free-ranging reptile population
TLDR
The results suggest that male competitive ability is the primary driver of mating success in tuatara, however, MHC-associated preferences also appear to play a role, possibly as a kin avoidance mechanism during territory formation.

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