Recovery of South American fur seals from Fuegian Archipelago (Argentina)

Abstract

In order to understand the distribution and abundance of a given species, we need to know its evolutionary history, the resources it requires, its demographic vital rates, its interactions with conspecifics and other species, and the effects of environmental conditions At the edges of the present distribution of a particular species, organisms are exposed to the extreme of variability in the environmental variables that define their natural habitat. In those environments, a small change of any of the variables can strongly affect the survivorship of a given species.