La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Diving in shallow water: the foraging ecology of darters (Aves : Anhingidae)
Auteurs :	Peter G. Ryan, Auteur
Type de document :	Article
Dans :	Journal of Avian Biology (38(4) JUL 2007)
Article en page(s) :	507-514
Langues:	Anglais
Résumé :	Diving birds have to overcome buoyancy, especially when diving in shallow water. Darters and anhingas (Anhingidae) are specialist shallow-water divers, with adaptations for reducing their buoyancy. Compared to closely-related cormorants (Phalacrocoracidae), darters have fully wettable plumage, smaller air sacs and denser bones. A previous study of darter diving behaviour reported no relationship between dive duration and water depth, contrary to optimal dive models. In this study I provide more extensive observations of African darters Anhinga melanogaster rufa diving in water

Lundi , mardi et jeudi de 9h à 12h et de 13h à 17h00 : ouverture au public ...