| Titre : | Willow tit Parus montanus extrapair offspring are more heterozygous than their maternal half-siblings |
| Auteurs : | Satu Lampila, Auteur ; Markku Orell, Auteur ; Laura Kvist, Auteur |
| Type de document : | Article |
| Dans : | Journal of Avian Biology (42(4) JUL 2011) |
| Article en page(s) : | 355-362 |
| Langues: | Anglais |
| Résumé : | Through extrapair matings, males can sire additional offspring with low cost and females may look for direct benefits in form of food or additional paternal care or gain genetic benefits that increase offspring fitness. We studied the patterns of female mate choice and frequency of extrapair paternity in the socially monogamous willow tit Parus montanus using microsatellites. We also examined the effect of heterozygosity on the growth rate and survival of the chicks. We found |



