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Article
E. Kalmbach, Auteur ; R. Griffiths, Auteur ; J. E. Crane, Auteur ; R. W. Furness, AuteurWe investigated the effects of increased egg production on body condition as well as on measures of reproductive performance in great skuas, Stercorarius skua, over two subsequent years. We experimentally increased egg production from the normal[...]
Article
E. Kalmbach, Auteur ; P. H. Becker, AuteurWe investigated chick development and feeding rate in the neotropic cormorant, Phalacrocorax brasilianus, in a colony in Central Chile. The year of our study was characterized by relatively good foraging conditions. Brood sizes varied from two t[...]
Article
E. Kalmbach, AuteurAdoption of unrelated offspring by successful breeders is one form of brood mixing and alloparental care that is widespread among geese and other waterfowl. Biparental care and long-lasting family bonds in geese are likely to affect the costs an[...]
