Počet záznamů: 1

Molecular evidence for extra-pair paternity and intraspecific brood parasitism in the Black-headed Gull

  1. 1.
    0358883 - UBO-W 2012 RIV US eng J - Článek v odborném periodiku
    Ležalová-Piálková, Radka
    Molecular evidence for extra-pair paternity and intraspecific brood parasitism in the Black-headed Gull.
    Journal of Ornithology. Roč. 152, č. 2 (2011), s. 291-295 ISSN 0021-8375
    Výzkumný záměr: CEZ:AV0Z60930519
    Klíčová slova: Black-headed Gull * genetic mating system * extra-pair paternity * intraspecific brood parasitism
    Kód oboru RIV: EG - Zoologie
    Impakt faktor: 1.636, rok: 2011

    Social monogamy is common among birds, while genetic monogamy is supposed to be rare. I have investigated the genetic mating system of the Black-headed Gull Larus ridibundus in which, as in seabirds and most other long-lived and socially monogamous birds, extra-pair paternity (EPP) is typically rather infrequent. The parentage of 79 chicks from 30 broods was determined based on the analysis of six microsatellite markers. In this study population, evidence of allelic inconsistencies between putative parents and chicks as a result of both EPP and intraspecific brood parasitism (ISBP) was found in 43% of nests . Extra-pair paternity was detected in 33% (10/30) of broods, and 20% (16/79) of all nestlings were sired by extra-pair males. In addition, 9% (7/79) of chicks out of five nests (17%) were not the offspring of either member of the pair, indicating ISBP. These findings reveal a moderate rate of ISBP and a high rate of EPP in the Black-headed Gull compared with other related species and shows that the Black-headed Gulls successfully participate in extra-pair copulations.
    Trvalý link: http://hdl.handle.net/11104/0196799