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Article
J. T. Lifjeld, Auteur ; A. Johnsen, Auteur ; T. Petitguyot, AuteurWe examined inter- and intra-clutch egg-size variation in the bluethroat (Luscinia s. svecica), an open-nesting passerine breeding in the sub-alpine region in southern Norway. By removing first clutches shortly after egg-laying, we induced layin[...]
Article
L. A. Whittingham, Auteur ; J. T. Lifjeld, AuteurWhile many studies have reported extra-pair paternity in birds, few studies have actually been able to assign paternity to extra-pair young or to determine correlates of male extra-pair fertilization success. Such information is crucial when try[...]
Article
J. T. Lifjeld, Auteur ; A. M. A. Harding, Auteur ; F. Mehlum, Auteur ; T. Oigarden, AuteurExtra-pair paternity is typically rather infrequent in seabirds, as in most other long-lived and socially monogamous birds. Here we report the first paternity study of the little auk Alle alle, a high arctic seabird which raises only a single ch[...]
