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Extra-pair paternity in the long-tailed finch Poephila acuticauda.


ABSTRACT: Although the majority of passerine birds are socially monogamous, true genetic monogamy is rare, with extra-pair paternity (EPP) occurring in almost 90% of surveyed socially monogamous species. We present the first molecular data on the genetic breeding system of the long-tailed finch, Poephila acuticauda, a grass finch endemic to the tropical northern savannah of Australia. Although the species forms socially monogamous pair bonds during the breeding season, we found that extra-pair males sired 12.8% of 391 offspring, in 25.7% of 101 broods. Our findings provide only the second estimate of extra-pair paternity in the estrildid finch family.

SUBMITTER: van Rooij EP 

PROVIDER: S-EPMC4715429 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature

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Extra-pair paternity in the long-tailed finch Poephila acuticauda.

van Rooij Erica P EP   Rollins Lee A LA   Holleley Clare E CE   Griffith Simon C SC  

PeerJ 20160105


Although the majority of passerine birds are socially monogamous, true genetic monogamy is rare, with extra-pair paternity (EPP) occurring in almost 90% of surveyed socially monogamous species. We present the first molecular data on the genetic breeding system of the long-tailed finch, Poephila acuticauda, a grass finch endemic to the tropical northern savannah of Australia. Although the species forms socially monogamous pair bonds during the breeding season, we found that extra-pair males sired  ...[more]

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