| Titre : | Journal of Avian Biology 46(2) - MAR 2015 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
This paper examines the potential effect of some factors involved in the decline of a winter population of the European robin Erithacus rubecula in southern Spain. The area receives extra-Iberian immigrants that come into contact with resident c[...]
Article
Hawk mimicry in cuckoos and anti-parasitic aggressive behavior of barn swallows in Denmark and China
Wei Liang, Auteur ;
Anders Pape Moller, Auteur
Hosts of brood parasites defend their nests against parasitism by aggression and subsequently, if parasitized, by rejection of the parasite egg or nestling. Cuckoos have evolved plumage mimicry with convergence towards the phenotype of Accipiter[...]
Article
N. Adam Smith, Auteur ;
Julia A. Clarke, Auteur
Puffins, auks and their allies in the wing-propelled diving seabird clade Pan-Alcidae (Charadriiformes) have been proposed to be key pelagic indicators of faunal shifts in Northern Hemisphere oceans. However, most previous phylogenetic analyses [...]
Article
Robin J. Kubitza, Auteur ;
Thomas Bugnyar, Auteur ;
Christine Schwab, Auteur
Most birds rely on cooperation between pair partners for breeding. In long-term monogamous species, pair bonds are considered the basic units of social organization, albeit these birds often form foraging, roosting or breeding groups in which th[...]
Article
Joseph R. Jehl, Auteur ;
ANNETTE E. HENRY, Auteur ;
David L. Swanson, Auteur
The eared grebe Podiceps nigricollis shows seasonal variation in the relative size of the major flight muscles that lift and lower the wing: respectively, supracoracoideus (s) and pectoralis (p). S/p ratios are low (approximate to 0.07-0.12) whe[...]
Article
Amy J. Davis, Auteur ;
Michael L. Phillips, Auteur ;
Paul F. Doherty, Auteur
Gunnison sage-grouse Centrocercus minimus has declined from their historic range and recent monitoring has provided evidence that some populations are continuing to decline. The evaluation of long-term, population-specific survival rates is impo[...]
Article
Sara Calhim, Auteur ;
Robert Montgomerie, Auteur
Gonad size and shape asymmetries are particularly common in birds. Although some obvious size and shape differences between the left and right testes in birds were first documented more than a century ago, little is known about what influences t[...]
Article
Maria Karlsson, Auteur ;
Julia Schroeder, Auteur ;
Shinichi Nakagawa, Auteur ;
Henrik G. Smith, Auteur ;
Terry Burke, Auteur ;
Helena Westerdahl, Auteur
The MHC (Major Histocompatibility Complex) plays an important role in the immune system of vertebrates. MHC genes are extremely polymorphic and this variation is considered to be maintained by selection from pathogens. We investigate whether MHC[...]
Article
Pavel Jaška, Auteur ;
Pavel Linhart, Auteur ;
Roman Fuchs, Auteur
The ability of individuals to recognize others based on vocalizations has been proven in many species of birds. However, we are still far from understanding important aspects of the discrimination process. For example, it is still not fully unde[...]
Article
Jabi Zabala, Auteur ;
Iñigo Zuberogoitia, Auteur
We studied the effects of age on breeding performance and survival probability in a peregrine falcon population, using data from a long term monitoring programme (carried out over 16 yr), in which we were able to identify individual birds. We co[...]
Article
R. Glenn Ford, Auteur ;
David G. Ainley, Auteur ;
Amelie Lescroel, Auteur ;
Phil O'B Lyver, Auteur ;
Viola Toniolo, Auteur ;
Grant Ballard, Auteur
We investigated central place foraging (CPF) in the context of optimal foraging theory in Adelie penguins Pygoscelis adeliae of the southern Ross Sea by using satellite tracking and time-depth recorders to explore foraging at two spatio-temporal[...]
