| Titre : | Journal of Avian Biology 41(4) - JUL 2010 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Francesca Zoratto, Auteur ;
Claudio Carere, Auteur ;
Flavia Chiarotti, Auteur ;
Daniela Santucci, Auteur ;
Enrico Alleva, Auteur
Predators use diverse hunting strategies to maximize hunting success, while preys adopt anti-predator strategies to maximize escape chances, among which flocking, communal roosting, and the related collective responses are a common pattern in gr[...]
Article
Patricia J. Faria, Auteur ;
Fausto P. Campos, Auteur ;
Joaquim O. Branco, Auteur ;
Cezar M. Musso, Auteur ;
Joao S. Morgante, Auteur ;
Michael W. Bruford, Auteur
The South American tern Sterna hirundinacea is a migratory species for which dispersal, site fidelity and migratory routes are largely unknown. Here, we used five microsatellite loci and 799 bp partial mitochondrial DNA sequences (Cytochrome b a[...]
Article
Paulo Catry, Auteur ;
Richard A. Phillips, Auteur ;
Isaac P. Forster, Auteur ;
Rafael Matias, Auteur ;
Miguel Lecoq, Auteur ;
José P. Granadeiro, Auteur ;
Ian J. Strange, Auteur
In birds, the period spent brooding or guarding young chicks is highly variable, but such variation has seldom been studied. Previous single-year studies of Antarctic petrels Thalassoica antarctica and grey-headed albatrosses Thalassarche chryso[...]
Article
Egg camouflage has been found to reduce predation in several ground-nesting species. Therefore, the evolution of eggs that lack camouflage in ground nesting birds is puzzling. Even though clutch predation in the tropics is high, tinamous are the[...]
Article
Carter T. Atkinson, Auteur ;
Michael D. Samuel, Auteur
The role of introduced avian malaria Plasmodium relictum in the decline and extinction of native Hawaiian forest birds has become a classic example of the potential effect of invasive diseases on biological diversity of naive populations. Howeve[...]
Article
Joël Bried, Auteur ;
Marie-Pierre Dubois, Auteur ;
Philippe Jarne, Auteur ;
Pierre Jouventin, Auteur ;
Ricardo S. Santos, Auteur
Most bird species are socially monogamous. However, extra-pair copulations (EPCs), resulting in extra-pair paternity (EPP), commonly occur. EPCs should allow females to adjust social mate choice and allow males that fail to obtain a nest a chanc[...]
Article
W. Scott Schwenk, Auteur ;
Allan M. Strong, Auteur ;
T. Scott Sillett, Auteur
Considerable uncertainty surrounds the conditions under which birds can cause trophic cascades. In a three-year experiment, we studied the direct and indirect effects of insectivorous birds on arthropod abundance, herbivory, and growth of stripe[...]
Article
Tore Slagsvold, Auteur ;
Geir A. Sonerud, Auteur ;
Helge E. Gronlien, Auteur ;
Leif C. Stige, Auteur
Most raptors take large prey for their size compared to other birds, but tear the prey apart into small morsels before swallowing. Little is known about how the efficiency of this prey handling varies among raptors, and how it relates to their f[...]
Article
K. L. Buchanan, Auteur ;
M. R. Evans, Auteur ;
M. L. Roberts, Auteur ;
L. Rowe, Auteur ;
A. R. Goldsmith, Auteur
Badges of status function in many birds within a social context to establish dominance hierarchies and reduce antagonistic encounters. In order to maintain the honesty of the signalling system, such badges must be costly to produce or to maintai[...]
Article
Corey E. Tarwater, Auteur ;
Jeffrey D. Brawn, Auteur
How environmental conditions affect the timing and extent of parental care is a fundamental question in comparative studies of life histories. The post-fledging period is deemed critical for offspring fitness, yet few studies have examined this [...]
Article
Susanna Komenda-Zehnder, Auteur ;
Lukas Jenni, Auteur ;
Felix Liechti, Auteur
A limitation of standardized mist netting for monitoring migration is caused by the lack of knowledge about the relationship between trapped birds and birds flying aloft. Earlier studies related nocturnal radar counts with trapping data of the f[...]
Article
Rebecca J. Safran, Auteur ;
Kevin J. McGraw, Auteur ;
Kevin M. Pilz, Auteur ;
Stephanie M. Correa, Auteur
Evidence is mounting that female animals use egg-yolk compounds (e.g. steroids, antioxidants) to adaptively engineer the quality of their offspring as a function of several maternal and environmental factors. Though adjustments to yolk allocatio[...]
Article
Octavio R. Rojas-Soto, Auteur ;
Michael Westberg, Auteur ;
Adolfo G. Navarro-Sigüenza, Auteur ;
Robert M. Zink, Auteur
Tiburon Island is a land-bridge island in the Gulf of California, separated from mainland Sonora by 3 km. The shallow channel (13 m) separating the island and mainland is thought to have formed 10 000 years ago. Although the majority of avian re[...]
Article
Raffael Aye, Auteur ;
Stefan T. Hertwig, Auteur ;
Manuel Schweizer, Auteur
The present study reports the discovery of the hitherto unknown breeding grounds of the large-billed reed warbler Acrocephalus orinus in the Badakhshan region of Tajikistan. A total of eight adult individuals were caught at three riverine woodla[...]
Article
Patrick Brunner, Auteur ;
Gilberto Pasinelli, Auteur
The two main functions of bird song are territory defence and mate attraction. Considerable progress has been made in understanding how species adjust the use of songs to serve these and other (presumed) functions of bird song, but the striking [...]
