Using a bioenergetic and allometric approach, we developed multispecies trophodynamic
models of the marine community of northern and central Patagonia in the southwestern …

Individual specialisation is increasingly recognised to be an ecological and evolutionary
process having important consequences for population dynamics of vertebrates. The South …

Carbon and nitrogen isotopic analyses of skull bone were used to investigate how sealing
and the development of industrial fishing have affected the diet of the South American sea …

Abstract In northern Patagonia, South American sea lions (Otaria flavescens) are increasing
in number after a depletive harvest. There has been an expansion of colonies with an …

Otaria flavescens has been one of the most heavily exploited pinnipeds during the last 200
years, with depletion of~ 90% in some colonies. After the prohibition on sealing in South …

This study assessed ontogenetic dietary changes in male South American fur seals
Arctocephalus australis in northern and central Patagonia (Argentina) using stable isotope …

The human exploitation of marine resources is characterised by the preferential removal of
the largest species. Although this is expected to modify the structure of food webs, we have a …

Stable isotope analyses have become an important tool in reconstructing diets, analysing
resource use patterns, elucidating trophic relations among predators and understanding the …

There is an increasing interest in dietary composition of threatened seabirds as an important
key to understanding their feeding ecology, population dynamics and interaction with …

The South American sea lion (Otaria flavescens) is widely distributed along the southern
Atlantic and Pacific coasts of South America with a history of significant commercial …