A new threat for the globally Endangered Hooded Grebe Podiceps gallardoi: the American mink Neovison vison.

作者：Roesler Ignacio^*; Imberti Santiago; Casanas Hernan; Volpe Noelia

来源：Bird Conservation International, 2012, 22(4): 383-388.

DOI：10.1017/S0959270912000019

The Hooded Grebe Podiceps gallardoi has been uplisted to globally %26apos;Endangered%26apos; recently mainly because of the rapid population decline suffered within the last 20 years due to factors such as nest depredation by Kelp Gull Larus dominicanus as well as destruction of colonies by wind and lake desiccation. During a census of Hooded Grebes during the 2010/2011 breeding season we found a new predator that has not previously been mentioned, the American mink Neovison vison. One individual mink killed 33 Hooded Grebes and consequently destroyed one of the five colonies found in that breeding season. Due to the characteristics of the waterbird assemblage in the area, the impact of mink could be catastrophic.

• 出版日期2012-12