Predators directly and indirectly affect the density and the behavior of prey. These effects may potentially cascade down to lower trophic levels. In this study, we tested the effects of predator calls (playbacks of bird ...

Predators directly and indirectly affect the density and the behavior of prey. These effects may potentially cascade down to lower trophic levels. In this study, we tested the effects of predator calls (playbacks of bird ...

In order to understand interspecific trophic relationships between top predators, we analyzed diet information for nine bird and two seal species collected in the austral summer from 1996 to 2000 at South Orkney Islands. ...

Seed predators that severely affect seed germination rates are well known for many plant species. Here, we hypothesised that due to differences in resource allocation within fruits, seed predation can negatively affect ...

Seabird and marine-mammal attendance and by-catch in mid-water and bottom otter semi-industrial coastal pair-trawl fisheries were assessed for the first time in northern Argentina. Observers were placed onboard trawlers ...

Top predators play an important role to preserving healthy and functional ecosystems. Predatory interactions among generalist predators and native prey may be altered due to occurrence and availability of introduced prey ...

The present study is a valuable contribution to the knowledge of feeding habits of Patagonian toothfish Dissostichus eleginoides in Southwestern Atlantic (53–55°S, 351 to 1073 m depth) near Burdwood Bank/Namuncurá ...