Influence of fish introduction and water level decrease on lakes of the arid Patagonian plateaus with importance for biodiversity conservation

Gaviota Cocinera (Larus dominicanus) atacando a un Pato Maicero (Anas spinicauda)

Ruddy-headed Goose Chloephaga rubidiceps: Former plague and present protected species on the edge of extinction

Structure of plankton and waterbird communities under water level fluctuations : two case studies in shallow lakes of the Patagonian steppe