| Titre : | Journal of Avian Biology 36(1) - JAN 2005 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
M. B. Horvath, Auteur ;
B. Martinez-Cruz, Auteur ;
J. J. Negro, Auteur ;
L. Kalmar, Auteur ;
J. A. Godoy, Auteur
Non-invasive sampling is a useful tool for genetic analyses of endangered and/or elusive species, but it is often inapplicable due to the low quality and quantity of the DNA obtained. In this study we show that the blood clot located in the supe[...]
Article
Nest site selection by birds is a critically important life history trait as competition for suitable sites can be intense, and because birds are at their most vulnerable to predators during nesting. Previous studies show that the clutch size an[...]
Article
D. Gremillet, Auteur ;
C. Chauvin, Auteur ;
R. P. Wilson, Auteur ;
Y. Le Maho, Auteur ;
S. Wanless, Auteur
The great cormorant Phalacrocorax carbo is thought to have a wettable plumage, providing low body insulation during foraging. Great cormorants should thus be constrained by water temperatures, and show high energy requirements. Surprisingly, thi[...]
Article
D. C. Hahn, Auteur ;
J. S. Hatfield, Auteur ;
M. A. Abdelnabi, Auteur ;
J. M. Wu, Auteur ;
L. D. Igl, Auteur ;
M. A. Ottinger, Auteur
We examined variability in yolk hormone levels among songbird species and the role of yolk steroids as a mechanism for enhanced exploitation of hosts by the parasitic brown-headed cowbird Molothrus ater. Within-clutch variation in yolk steroids [...]
Article
E. S. Bridge, Auteur ;
M. D. Eaton, Auteur
Unlike the majority birds that replace their primaries once each year, most Sterna terns practice an unusual repeated wing molt, wherein a variable number of inner primaries are replaced twice or even three times in a single year. This seemingly[...]
Article
J. Rutkowska, Auteur ;
M. Cichon, Auteur
Experimental synchronization of onset of incubation was employed in laboratory held zebra finches Taeniopygia guttata to study whether differential resource allocation and possible bias of offspring sex in subsequent eggs in the laying order cou[...]
Article
U. Bauchinger, Auteur ;
M. Klaassen, Auteur
Article
I studied cavity-nesting birds in an undisturbed site in lowland Peru to determine the relative roles of competition and predation in favoring termitarium nesting over tree cavity nesting. Occupancy rates of both nest boxes and natural tree cavi[...]
Article
M. J. Stauss, Auteur ;
J. F. Burkhardt, Auteur ;
J. Tomiuk, Auteur
Life-history theory predicts that parental effort in nestling provisioning is optimised in relation to the quality of individuals and/or their habitat. We studied the investment of breeding pairs of blue tits Parus caeruleus for their reproducti[...]
Article
C. B. Cooper, Auteur ;
W. M. Hochachka, Auteur ;
A. A. Dhondt, Auteur
Multiple brooding can substantially increase the annual reproductive output of birds, and the propensity for Multiple brooding can vary geographically. Thus, studies attempting to understand the evolution of geographic variation in nesting succe[...]
Article
S. Verhulst, Auteur ;
B. Riedstra, Auteur ;
P. Wiersma, Auteur
Birds rearing experimentally enlarged broods have lower antibody responses to a novel antigen, and we tested three hypotheses that could explain this result. We used zebra finches Taeniopygia guttata inoculated with sheep red blood cells (SRBC) [...]
Article
T. Fransson, Auteur ;
S. Jakobsson, Auteur ;
C. Kullberg, Auteur
Many long-distance migrant birds regularly have to pass ecological barriers, like the Saharan desert, where fuelling is very difficult, and large fuel loads have to be stored in advance. In this paper, we have investigated how seven species of b[...]
