| Titre : | Ornis Fennica 96(3) - 2019 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Mark H. Hancock, Auteur ;
Hannah J. Robson, Auteur ;
Trevor D. Smith, Auteur ;
Andrew Douse, Auteur
Many populations of sea ducks have declined; poor foraging conditions in freshwater breeding habitats could be a contributory factor. The UK breeding population of Common Scoters (Melanitta nigra) declined by 63% between 1995 and 2007, prompting[...]
Article
Jan E. Ostnes, Auteur ;
Rolf T. Kroglund, Auteur ;
Oddmund Kleven, Auteur ;
Torgeir Nygard, Auteur
Migratory behaviour is subject to intraspecific variation and may be determined by the age, sex and population origin of individuals. Here we equipped eight juvenile Ospreys (Pandion haliaetus) with GPS-based satellite-transmitters to investigat[...]
Article
Mattia Brambilla, Auteur ;
Davide Scridel, Auteur ;
Beatrice Sangalli, Auteur ;
Federico Capelli, Auteur ;
Paolo Pedrini, Auteur ;
Giuseppe Bogliani, Auteur ;
Diego Rubolini, Auteur
During breeding, parents of avian species must increase their foraging efforts to collect food for their offspring, besides themselves. Foraging trips are thus a key aspect of the foraging ecology of central-place foragers when rearing their off[...]
Article
Kevin K. Clausen, Auteur ;
Thorsten J. S. Balsby, Auteur ;
Vianney Goma, Auteur ;
Jesper Madsen, Auteur
In wildlife management, the ability to reliably assess population sizes is a basic prerequisite. When populations are managed specifically to maintain a population target this is even more vital. In this study we apply a mark-resight approach us[...]
