Multiple Paternity in Polyandrous Barn Owls (Tyto alba).

Détails

Ressource 1Télécharger: BIB_82DDBC50F9F8.P001.pdf (141.44 [Ko])
Etat: Public
Version: Final published version
ID Serval
serval:BIB_82DDBC50F9F8
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Multiple Paternity in Polyandrous Barn Owls (Tyto alba).
Périodique
PLoS One
Auteur(s)
Henry I., Antoniazza S., Dubey S., Simon C., Waldvogel C., Burri R., Roulin A.
ISSN
1932-6203 (Electronic)
ISSN-L
1932-6203
Statut éditorial
Publié
Date de publication
2013
Peer-reviewed
Oui
Volume
8
Numéro
11
Pages
e80112
Langue
anglais
Résumé
In polyandrous species females produce successive clutches with several males. Female barn owls (Tyto alba) often desert their offspring and mate to produce a 2(nd) annual brood with a second male. We tested whether copulating during chick rearing at the 1(st) annual brood increases the male's likelihood to obtain paternity at the 2(nd) annual breeding attempt of his female mate in case she deserts their brood to produce a second brood with a different male. Using molecular paternity analyses we found that 2 out of 26 (8%) second annual broods of deserting females contained in total 6 extra-pair young out of 15 nestlings. These young were all sired by the male with whom the female had produced the 1(st) annual brood. In contrast, none of the 49 1(st) annual breeding attempts (219 offspring) and of the 20 2(nd) annual breeding attempts (93 offspring) of non-deserting females contained extra-pair young. We suggest that female desertion can select male counter-strategies to increase paternity and hence individual fitness. Alternatively, females may copulate with the 1(st) male to derive genetic benefits, since he is usually of higher quality than the 2(nd) male which is commonly a yearling individual.
Pubmed
Web of science
Open Access
Oui
Création de la notice
10/10/2013 14:58
Dernière modification de la notice
20/08/2019 14:42
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