La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Cormorant and darter prey size selection under experimental conditions
Auteurs :	K. Hustler, Auteur
Type de document :	Article
Dans :	Ostrich (66(4) DEC 1995)
Article en page(s) :	109-113
Langues:	Anglais
Résumé :	The most profitable sized cichlid fish for Reed Phalacrocorax africanus and Whitebreasted Cormorants P. carbo lucidus and Darter Anhinga melanogaster were determined experimentally. A range of sizes was fed to all three species in captivity to determine whether, given a choice, they would choose the most profitable fish. All species chose certain sizes of fish preferentially, but not in accordance with their profitability. The hunger status of the birds at the time of the experiment and the way in which the experiments were designed and carried out probably influenced the size of fish chosen by the birds.

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