| Titre : | Journal of Avian Biology 37(3) - MAY 2006 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
D. R. Ardia, Auteur ;
M. F. Wasson, Auteur ;
D. W. Winkler, Auteur
Variation in egg size and composition can have important consequences for the quality of offspring. We investigated the factors influencing the yolk mass and egg mass of tree swallows breeding in Ithaca, NY. Using a nondestructive technique to e[...]
Article
J. Madsen, Auteur ;
M. Klaassen, Auteur
An abdominal profile index (API) was developed for pink-footed geese Anser brachyrhynchus as a measure of body condition. On basis of carcass analysis of 56 adult geese with known API prior to collection, we found significant linear relationship[...]
Article
L. Crespin, Auteur ;
M. P. Harris, Auteur ;
Jean-Dominique Lebreton, Auteur ;
S. Wanless, Auteur
Although there is general consensus about the existence of senescence in vertebrates, empirical evidence of senescence in demographic parameters in wild populations is limited. Data on breeding success and survival of breeding common guillemots [...]
Article
M. Irestedt, Auteur ;
J. Fjeldsa, Auteur ;
P. G. P. Ericson, Auteur
The Neotropical ovenbirds (Furnariidae) form an extraordinary morphologically and ecologically diverse passerine radiation, which includes many examples of species that are superficially similar to other passerine birds as a resulting from their[...]
Article
D. R. Peck, Auteur ;
B. C. Congdon, Auteur
Mechanisms that drive sex-specific foraging behaviour in seabirds are not fully understood. In some cases, sexual-size dimorphism has been implicated. However, recent empirical work indicates that foraging behaviour may also differ between sexes[...]
Article
K. M. Bouwman, Auteur ;
J. Komdeur, Auteur
Extra-pair paternity (EPP) is common in many socially monogamous birds, but large variations in frequency of EPP are found both between and within species. Local ecological factors can affect the costs and benefits of extra-pair mating behaviour[...]
Article
M. D. Johnson, Auteur ;
A. M. Strong, Auteur ;
T. W. Sherry, Auteur
Explanations for the ecological integration of migratory and non-migratory (resident) insectivorous birds in the tropics have been complicated by the paradox that arthropod abundances are low when bird abundances reach their annual peak. The bre[...]
Article
S. A. Iverson, Auteur ;
D. Esler, Auteur
Understanding the degree of demographic connectivity among population segments is increasingly recognized as central to the fields of population ecology and conservation biology. However, delineating discrete population units has proven challeng[...]
Article
I. Tulp, Auteur ;
H. Schekkerman, Auteur
Birds with uniparental incubation may face a time allocation problem between incubation and feeding. Eggs need regular warming to hatch successfully, but the parent must leave the nest to feed and safeguard its own survival. Time allocation duri[...]
Article
M. I. Sanchez, Auteur ;
A. J. Green, Auteur ;
E. M. Castellanos, Auteur
Waders (Charadriiformes) undergo particularly long migratory flights, making them ideal vectors for long-distance dispersal. We present a study of dispersal of plant seeds by migratory waders in the Odiel saltworks in south-west Spain. This is t[...]
