La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Torrent Ducks (Merganetta armata) Diving and Feeding in Hot Springs (2015)
Auteurs :	Gerardo Ceron, Auteur
Type de document :	Article
Dans :	Waterbirds (38(2) JUN 2015)
Article en page(s) :	214-219
Résumé :	Opportunistic behavior in birds can enhance the ability of a species to expand their distribution. Currently, there is no documentation of any bird diving and feeding in hot springs with temperatures greater than 30 degrees C. A pair of Torrent Ducks (Merganetta armata) feeding in a hot spring with temperatures between 36-50 degrees C is described. The diet and food availability in this hot spring was studied in a Torrent Duck territory. While the sector of stream with hot waters represents only 13% of the territory of the Torrent Duck pair, prey collected there represented 30% of their diet. This is an extreme example of how this highly specialized species can also use a wide variety of environments.

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