Hybridization and adaptive mate choice in flycatchers

  title={Hybridization and adaptive mate choice in flycatchers},
  author={T. von Veen and Thomas Borge and Simon C Griffith and G P Saetre and Stanislav Bure{\vs} and Lars Gustafsson and Ben C Sheldon},
Hybridization in natural populations is strongly selected against when hybrid offspring have reduced fitness. Here we show that, paradoxically, pairing with another species may offer the best fitness return for an individual, despite reduced fitness of hybrid offspring. Two mechanisms reduce the costs to female collared flycatchers of pairing with male pied flycatchers. A large proportion of young are sired by conspecific male collared flycatchers through extra-pair copulations, and there is a… CONTINUE READING
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