| Titre : | Journal of Avian Biology 37(4) - JUL 2006 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Kaspar Delhey, Auteur ;
Bart Kempenaers, Auteur
In many species of passerine birds yearlings display a less elaborate version of the adult secondary sexual traits, but the causes of such differences in ornamentation are not always well understood. We studied age-related changes in blue tit Pa[...]
Article
Rachel Blakey, Auteur ;
Yuri Zharikov, Auteur ;
Greg A. Skilleter, Auteur
Rates of food intake in animals consuming abundant prey can be constrained by the rates of digestion or excretion of ingested substances, such as salt, particularly so in the animals that regularly migrate between freshwater and saltwater enviro[...]
Article
Jan Ekman, Auteur
Family cohesion in birds is often explained as a product of limitations on breeding opportunities leading to delayed dispersal among the offspring. Yet, it is not independent reproduction but floating (queuing outside the natal territory for a b[...]
Article
Jan-Ake Nilsson, Auteur ;
Hans Kallander, Auteur
To evaluate the importance of tree leafing for the start of laying and clutch size of birds, we compared the breeding phenology of great tits Parus major and blue tits P. caeruleus between one coastal and two inland sites in the same geographica[...]
Article
Theresa M. Burg, Auteur ;
John P. Croxall, Auteur
Extrapair paternities (EPP) are relatively common in passerines, but rare in seabirds. Like most seabirds, albatrosses are long lived, form long-term pair bonds and require biparental care for chick-rearing. Microsatellite analyses of 327 chicks[...]
Article
Staffan Bensch, Auteur ;
Goran Bengtsson, Auteur ;
Susanne Åkesson, Auteur
We conducted stable isotope analyses of nitrogen and carbon on feathers obtained from willow warblers in Africa to find an explanation for a previously observed pattern of different delta(15)N and delta(13)C values across a migratory divide in c[...]
Article
Eleonora Zampiga, Auteur ;
Giorgia Gaibani, Auteur ;
Davide Csermely, Auteur ;
Hans Frey, Auteur ;
Herbert Hoi, Auteur
Some birds are known to use the UV reflectance in their feeding strategy. Knowing that the common kestrel Falco tinnunculus is able to recognise vole trails by perceiving the UV reflectance of their scent marks, this study was designed to invest[...]
Article
Many open-nesting bird species orient their nests relative to surrounding vegetation to avoid adverse environmental conditions. In eastern England, tree pipit Anthus trivialis nests predominantly faced east, an orientation that provided shelter [...]
Article
Arpad Nyari, Auteur ;
Colin Ryall, Auteur ;
A. Townsend Peterson, Auteur
Summaries of recent rapid range expansions shown by the house crow Corvus splendens have provided insights into the global nature of this invasion process, but its long-term potential has not yet been evaluated. To explore the potential dimensio[...]
Article
Corey J. A. Bradshaw, Auteur ;
Warren W. White, Auteur
In this paper we report the observation of a rapidly developed vertebrate symbiosis involving ectoparasite cleaning by a native corvid of northern Australia, the Torresian crow Corvus orru, on a recently introduced bovid ungulate, the banteng Bo[...]
Article
Ryan M. Zajac, Auteur ;
David J. Cerasale, Auteur ;
Christopher G. Guglielmo, Auteur
In order to apply plasma metabolite profiling to assess the quality of stopover habitat for migrant birds it is crucial to know how quickly metabolite concentrations change in response to variation in energy intake rate. We fed live mealworms to[...]
Article
Suhel Quader, Auteur
Theory predicts that females should track resources while making decisions about where to reproduce, and males should track females. However, when males create the resource that females require, female settlement follows that of males. In this s[...]
Article
I studied the breeding biology of pied avocets Recurvirostra avosetta in natural habitats (alkaline lakes), and in semi-natural sites (dry fishpond, reconstructed wetlands) in Hungary to relate habitat selection patterns to spatial and temporal [...]
Article
Martin Paeckert, Auteur ;
Christian Dietzen, Auteur ;
Jochen Martens, Auteur ;
Michael Wink, Auteur ;
Laura Kvist, Auteur
Phylogenetic relationships between goldcrest populations from the Atlantic Islands (Azores and Canary Islands) were investigated by two molecular markers (mitochondrial control region and cytochrome b sequences), and partly by morphology and ter[...]
Article
Wouter F. D. van Dongen, Auteur ;
Raoul A. Mulder, Auteur
Bird song is an important signal for long-distance intraspecific communication. Thus, song characteristics are expected to have undergone adaptive modification to maximise propagation through the environment. Acoustic properties of song should b[...]
