High frequency of extrapair fertilization in a plural breeding bird, the Mexican jay, revealed by DNA microsatellites

@article{Li2000HighFO,
  title={High frequency of extrapair fertilization in a plural breeding bird, the Mexican jay, revealed by DNA microsatellites},
  author={Shou-Hsien Li and Jerram L. Brown},
  journal={Animal Behaviour},
  year={2000},
  volume={60},
  pages={867-877}
}
We used tetra-nucleotide microsatellite DNA typing to estimate the frequency of extrapair fertilization (EPF) in a plural breeding species, the Mexican jay, Aphelocoma ultramarina, in Arizona. We found EPF in 32 of 51 complete broods (63%) and 55 of 139 nestlings (40%) for which the putative father had been identified (one of the highest rates of EPF known for birds). At least 96.1% of EPF fathers came from within the group. This is by far the highest known within-group EPF rate among socially… 

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    Behavioral Ecology and Sociobiology
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