La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Genetic paternity analyses in Little Owls (Athene noctua): does the high rate of paternal care select against extra-pair young?
Auteurs :	W. Müller, Auteur ; J. T. Epplen, Auteur ; T. Lubjuhn, Auteur
Type de document :	Article
Dans :	Journal of Ornithology (142(2) APR 2001)
Article en page(s) :	195-203
Langues:	Anglais
Résumé :	Previous studies have shown that extra-pair fertilizations are much less frequent in Non-Passeriformes, especially in raptors, than in Passeriformes. Low breeding densities, high breeding synchrony and high rates of paternal effort have been discussed as possible causes of these low extra-pair fertilization rates. Using DNA fingerprinting, we studied the mating system of Little Owls (Athene noctua) in a population of relatively high breeding density and comparatively low breeding synchrony. We found no cases of extra-pair fertilization among 53 nestlings of 16 breeding pairs. We conclude that paternal effort is probably the most important factor in preventing extra-pair fertilizations in Little Owls.

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