Archive for 2008

J. Zanón Martínez 
The Calden Forest region of central Argentina has been severely impacted by a variety of human activities. Native forests have been eliminated in favor of agricultural lands and the legal and illegal hunting of wildlife – predominantly carnivores – have presumably affected these species, but there have been no management or research efforts Read more

E. Donadio 
The loss of species interactions, such as predator-prey relationships, may result in negative impacts that affect not only the interacting species but also other species and the biological communities and ecosystems they inhabit. For instance, the extirpation of wolves from most of North America resulted in prey species foraging in new wolf-free areas with Read more

M. Beron 
Olrog’s gull is one of the six species of gulls worldwide that are considered threatened, in large part because there are only 2,300 breeding pairs restricted to10 breeding colonies concentrating in two areas along the Argentina Patagonian coast. During the non-breeding season, the gulls migrate north to areas such as the nature reserve Mar Read more