| Titre : | Journal of Avian Biology 35(4) - JUL 2004 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
J. A. Green, Auteur ;
J. L. Tanton, Auteur ;
A. J. Woakes, Auteur ;
I. L. Boyd, Auteur ;
P. J. Butler, Auteur
We tested the hypothesis that implanted data loggers have no effect on the survival, breeding success and behaviour of macaroni penguins Eudyptes chrysolophus. Seventy penguins were implanted with heart rate data loggers (DLs) for periods of up [...]
Article
M. Green, Auteur ;
T. Alerstam, Auteur ;
G. A. Gudmundsson, Auteur ;
A. Hedenstrom, Auteur ;
T. Piersma, Auteur
We analysed five data sets of night directions of migrating arctic waders ill relation to,winds, recorded by tracking radar and optical range finder, in order to find out if these birds compensate for wind drift, or allow themselves to be drifte[...]
Article
A. Farnsworth, Auteur ;
S. A. Gauthreaux, Auteur ;
D. van Blaricom, Auteur
Several studies have found that the peak in bird density in the atmosphere during nocturnal migration occurs before midnight, while the peak in vocalizations from migrating birds occurs after midnight, in the hours just before dawn. In a recent [...]
Article
O. Sedlacek, Auteur ;
R. Fuchs, Auteur ;
A. Exnerova, Auteur
Redstart and black redstart inhabit different types of habitats under natural conditions. However, they come into close contact in a mosaic urban environment. Mechanisms enabling their local coexistence were looked for. We found that: 1) The two[...]
Article
J. Moreno, Auteur ;
J. L. Osorno, Auteur ;
J. Morales, Auteur ;
S. Merino, Auteur ;
G. Tomas, Auteur
A recent hypothesis posits that the bright colours of many avian eggs may act like signals of female genetic quality or condition to males in species with biparental care, inducing them to work harder for their offspring. We measured the colour [...]
Article
E. Adahl, Auteur ;
J. Lindstrom, Auteur ;
G. D. Ruxton, Auteur ;
K. E. Arnold, Auteur ;
T. Begg, Auteur
Intraspecific brood parasites lay their eggs in the nests of conspecifics. There are a number of methods for detecting intraspecific brood parasitism (IBP) in birds based on egg morphology. Here we test Eadie's (1989) method, which calculates th[...]
Article
D. R. Peck, Auteur ;
B. C. Congdon, Auteur
To test the influence of past vicariant events on Population genetic structure of the sooty tern Sterna fuscata, we examined Sequence variation in the mitochondrial control region of individuals from the Indo-Pacific and Atlantic Oceans. Our ana[...]
Article
P. J. B. Slater, Auteur ;
N. I. Mann, Auteur
In the tropics female birds sing much more frequently than in the temperate north, and sometimes even join their mates to form duets. Why might this be? We discuss how this phenomenon may relate to differences in life history that have been prop[...]
Article
L. Kvist, Auteur ;
K. Viiri, Auteur ;
P. C. Dias, Auteur ;
S. Rytkonen, Auteur ;
M. Orell, Auteur
Mitochondrial control region sequences from European populations of the blue tit Parus caeruleus were used to reveal the Pleistocene history and the post-glacial recolonization of Europe by the species. The southern subspecies, P. c. ogliastrae [...]
Article
W. P. Brown, Auteur ;
R. R. Roth, Auteur
We tested if juvenile survival and recruitment (returning to breed) of wood thrushes Hylocichla mustelina into their natal population was dependent on several measures of nestling condition, growth, and site fidelity Overall, nestling mass, wing[...]
Article
M. Milonoff, Auteur ;
H. Poysa, Auteur ;
P. Runko, Auteur ;
V. Ruusila, Auteur
Life-history theory assumes a trade-off between current reproductive effort and future reproductive success. There are a large number of studies demonstrating reproductive trade-offs in different animal taxa, particularly in birds. Most bird stu[...]
Article
J. M. Avilés, Auteur
The Iberian azure-winged magpie Cyanopica cyanus shows a remarkable ability to discriminate against great spotted cuckoo Clamator glandarius eggs. Here, I studied whether egg recognition in this species could be a derived feature resulting from [...]
