| Titre : | Journal of Avian Biology 43(6) - NOV 2012 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Jesus M. Aviles, Auteur ;
Deseada Parejo, Auteur
Vividly coloured chromatic signals play a key role in social and sexual signalling in diurnal birds, but their role is considered negligible in favour of achromatic (i.e. white, pure grey and black colourations) signals in nocturnal species. Her[...]
Article
David Martín-Gálvez, Auteur ;
Liesbeth de Neve, Auteur ;
Tomas Perez-Contreras, Auteur ;
Manuel Soler, Auteur ;
Juan Gabriel Martinez, Auteur ;
Juan Jose Soler, Auteur
Brood parasitic nestlings usually exhibit an exaggerated begging behaviour, which is mainly attributed to reduced inclusive fitness costs since they typically share the nest with unrelated individuals. However, energetic costs also constrain beg[...]
Article
Malcolm F. Rosenthal, Auteur ;
Troy G. Murphy, Auteur ;
Nancy Darling, Auteur ;
Keith A. Tarvin, Auteur
Ornamental bill color is postulated to function as a condition-dependent signal of individual quality in a variety of taxonomically distant bird families. Most red, orange, and yellow bill colors are derived from carotenoid pigments, and caroten[...]
Article
Laura A. Kelley, Auteur ;
Susan D. Healy, Auteur
Although the presence of vocal mimicry in songbirds is well documented, the function of such impressive copying is poorly understood. One explanation for mimicry in species that predominantly mimic alarm calls and predator vocal isations is that[...]
Article
Linda A. Lait, Auteur ;
Vicki L. Friesen, Auteur ;
Anthony J. Gaston, Auteur ;
Theresa M. Burg, Auteur
The population genetic structure of many high-latitude species in North America was affected by the last glaciation, and current structure reflects isolation in refugia and colonisation patterns. Large ice-free areas, both south of the ice sheet[...]
Article
Nicola Saino, Auteur ;
Maria Romano, Auteur ;
Manuela Caprioli, Auteur ;
Roberto Ambrosini, Auteur ;
Diego Rubolini, Auteur ;
Chiara Scandolara, Auteur ;
Andrea Romano, Auteur
The ecological conditions that a bird experiences during any stage of its life cycle may have consequences that become manifested at later life stages, and these carry-over effects may be major components of variance in individual performance. C[...]
Article
Phillip Cassey, Auteur ;
Ivan Mikšík, Auteur ;
Steven J. Portugal, Auteur ;
Golo Maurer, Auteur ;
John G. Ewen, Auteur ;
Erica Zarate, Auteur ;
Mary A. Sewell, Auteur ;
Filiz Karadas, Auteur ;
Tomáš Grim, Auteur ;
Mark E. Hauber, Auteur
The colourful appearance of avian eggshells is a prominent aspect of maternal reproductive effort in birds. Some differences in eggshell coloration have been reported to co-vary with various measures of maternal condition and these patterns supp[...]
Article
Jinelle H. Sperry, Auteur ;
Douglas G. Barron, Auteur ;
Patrick J. Weatherhead, Auteur
Seasonal variation in nest success is well documented for many bird species. Predator behavior has been suggested as a mechanism behind these seasonal patterns, but this hypothesis has received little attention. Here we test the hypothesis that [...]
Article
José M. Abad-Gómez, Auteur ;
José A. Masero, Auteur ;
Auxiliadora Villegas, Auteur ;
Noelia Albano, Auteur ;
Jorge S. Gutiérrez, Auteur ;
Juan M. Sánchez-Guzmán, Auteur
There is a growing body of evidence that maternal antibodies transferred to offspring have potential implications in the evolutionary ecology of birds. This transfer of maternal antibodies is a potentially flexible mechanism of non-genetic inher[...]
Article
W. B. Jaeckle, Auteur ;
M. Kiefer, Auteur ;
B. Childs, Auteur ;
R. G. Harper, Auteur ;
J. W. Rivers, Auteur ;
B. D. Peer, Auteur
The brown-headed cowbird Molothrus ater is a brood-parasite that lays eggs in nests of a wide range of host species, including the closely-related red-winged blackbird Agelaius phoeniceus and the dickcissel Spiza americana. Although cowbird eggs[...]
Article
Marion E. Wells, Auteur ;
Paul J. Schaeffer, Auteur
Birds that are year-round residents of temperate and tropical regions have divergent life histories. Tropical birds have a slower pace of life, one characteristic of which includes lower peak metabolic rate and daily activity levels. Temperate r[...]
Article
Emma L. B. Barrett, Auteur ;
Winifred Boner, Auteur ;
Ellis Mulder, Auteur ;
Pat Monaghan, Auteur ;
Simon Verhulst, Auteur ;
David S. Richardson, Auteur
Bird populations provide excellent systems to investigate variation in longevity in the wild since individuals can often be monitored over their lifetime. A number of recent studies suggest that the dynamics of protective telomere chromosome cap[...]
