| Titre : | Journal of Avian Biology 35(5) - SEP 2004 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
J. F. Masello, Auteur ;
P. Quillfeldt, Auteur
Haematology and plasma biochemistry values are useful tools for ecological research. They have been used to investigate the physiological state and the adaptation of individuals to their habitat, changes in nutritional state of birds, body condi[...]
Article
J. C. Alonso, Auteur ;
L. M. Bautista, Auteur ;
J. A. Alonso, Auteur
We describe winter territoriality in common cranes, Gras grus, a long-lived migrant species with long-lasting pair bonds and parental care extending throughout the winter. Cranes are territorial in the breeding season, and usually gregarious dur[...]
Article
Article
O. Opermanis, Auteur
Use of artificial nests in studies of nest success in birds has become increasingly popular, but this practice has been criticised because the appearance and success of artificial nests may differ from natural nests. Typically, artificial nests [...]
Article
F. Mougeot, Auteur ;
S. M. Redpath, Auteur
Sexual ornaments may enable females to discriminate amongst potential mates and choose those having either fewer parasites, or those which are more immunocompetent, or better able to cope with parasites. Tetraonid birds exhibit supra-orbital com[...]
Article
J. Reneerkens, Auteur ;
P. Korsten, Auteur
It has recently been shown that sandpipers (Scolopacidae) abruptly switch the chemical composition of their preen gland secretions from mono- to diester waxes just before the period of courtship. The timing and context of the shift suggested tha[...]
Article
S. M. Morgan, Auteur ;
L. D. Clifford, Auteur ;
M. A. Ashley-Ross, Auteur ;
D. J. Anderson, Auteur
Although incubation temperatures have been documented extensively in birds, few studies have followed fluctuations in temperatures throughout the length of the incubation period in natural nests. We recorded incubation temperatures of Nazca boob[...]
Article
O. Kleven, Auteur ;
A. Moksnes, Auteur ;
E. Roskaft, Auteur ;
G. Rudolfsen, Auteur ;
B. G. Stokke, Auteur ;
M. Honza, Auteur
We investigated the level of parasitism, egg mimicry and breeding success of cuckoos parasitising four sympatric species of Acrocephalus warblers in southern Moravia, Czech Republic. The parasitism rate was highest in the marsh warbler Acrocepha[...]
Article
B. J. Ploger, Auteur ;
M. J. Medeiros, Auteur
In broods of great egrets Ardea alba and other birds with siblicidal nestlings, the first-hatched brood members generally secure far more food than do their juniors. This feeding advantage could be caused by parental favoritism, or by seniors at[...]
Article
S. R. McWilliams, Auteur ;
C. Guglielmo, Auteur ;
B. Pierce, Auteur ;
M. Klaassen, Auteur
Unlike exercising mammals, migratory birds fuel very high intensity exercise (e.g., flight) with fatty acids delivered from the adipose tissue to the working muscles by the circulatory system. Given the primary importance of fatty acids for fuel[...]
