| Titre : | Journal of Avian Biology 37(5) - SEP 2006 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Juan C. Illera, Auteur ;
Mario Diaz, Auteur
We analyse the effects of rainfall, temperature, food availability and nest predation on the between-year variation in reproduction of the Canary Islands stonechat Saxicola dacotiae, a bird species endemic of the semiarid island of Fuerteventura[...]
Article
Elizabeth M. Humphreys, Auteur ;
Sarah Wanless, Auteur ;
David M. Bryant, Auteur
Different phases of the annual cycle in birds and mammals are often associated with characteristic and recurrent foraging behaviours. The extent to which stage-dependent changes in foraging behaviour are caused by intrinsic or extrinsic factors [...]
Article
Ian Newton, Auteur ;
Keith A. Hobson, Auteur ;
Anthony D. Fox, Auteur ;
Mick Marquiss, Auteur
The 2004 invasion of northern bullfinches into parts of western Europe was the largest on record. It also involved some birds that gave the normal piping call of the species, and others that gave a different 'trumpet' call, previously unknown to[...]
Article
Melanie Massaro, Auteur ;
Lloyd S. Davis, Auteur ;
R. Scott Davidson, Auteur
In many bird species, eggs laid late in the laying period hatch after a shorter incubation period than early-laid eggs. However, the mechanisms that explain these seasonal declines in incubation periods among clutches remain poorly understood. I[...]
Article
Piet J. Van Den Hout, Auteur ;
Theunis Piersma, Auteur ;
Anne Dekinga, Auteur ;
Suzanne K. Lubbe, Auteur ;
G. Henk Visser, Auteur
To cope with changes in the environment, organisms not only show behavioural but also phenotypic adjustments. This is well established for the digestive tract. Here we present a first case of birds adjusting their flight machinery in response to[...]
Article
Jerome Fuchs, Auteur ;
Jan I. Ohlson, Auteur ;
Per G. P. Ericson, Auteur ;
Eric Pasquet, Auteur
The subfamily Picumninae (piculets) includes 3 genera and 30 species of tiny and short-tailed woodpeckers with a pantropical distribution. Within the Picumninae, two cases of intercontinentally disrupted distributions at the genus level occur. T[...]
Article
Host-parasite interactions are central in evolutionary and behavioural ecology. In the last few years, skin injections of the mitogen Phytohaemagglutinin (PHA) have become one of the most important and widely used in-vivo assays of immune functi[...]
Article
Jean-Claude Thibault, Auteur ;
Roger Prodon, Auteur ;
Pascal Villard, Auteur ;
Jean-Francois Seguin, Auteur
We examined the relationship between the Corsican nuthatch Sitta whiteheadi, a passerine endemic to the island of Corsica and Corsican pine Pinus nigra laricio forest, its virtually exclusive habitat, currently restricted to inland mountains. Th[...]
Article
Katherine A. Jones, Auteur ;
John Richard Krebs, Auteur ;
Mark J. Whittingham, Auteur
Food abundance is an important determinant in habitat and patch selection but food accessibility and detectability is less often considered. Foraging on more cryptic seeds may increase predation risk by increasing the length of head down periods[...]
Article
Parameters of brown-headed cowbird Molothrus ater egg discrimination in warbling vireos Vireo gilvus
Todd J. Underwood, Auteur ;
Spencer G. Sealy, Auteur
We examined which egg parameters warbling vireos Vireo gilvus use to discriminate brown-headed cowbird Molothrus ater eggs and, by comparing our results to other studies, tested the prediction that ejecter species with eggs more similar in appea[...]
Article
Sarah G. Taylor, Auteur ;
Warren L. Paul, Auteur
This paper describes the daily foraging pattern of the white-browed babbler Pomatostomus superciliosus, a small passerine endemic to Australia. The percentage of time spent foraging as the day progressed increased by an average of only 9%. This [...]
Article
Mare Lohmus, Auteur ;
L. Fredrik Sundstrom, Auteur ;
Frank R. Moore, Auteur
Corticosterone is thought to play an important role in food caching and foraging behaviour. However, the direct influence of increased plasma corticosterone on feeding behaviour is still unclear. In this study the effect of increased corticoster[...]
Article
Marja Isomursu, Auteur ;
Osmo Ratti, Auteur ;
Pekka Helle, Auteur ;
Tuula Hollmen, Auteur
Parasite infections are often more common in male vertebrates than in females. Sexual selection leading to dimorphism can cause sexual differences in immune defence, behaviour or body size. Possible proximate explanations for male bias in parasi[...]
Article
Kalle Rainio, Auteur ;
Toni Laaksonen, Auteur ;
Markus Ahola, Auteur ;
Anssi V. Vahatalo, Auteur ;
Esa Lehikoinen, Auteur
Large-scale climate fluctuations, such as the North Atlantic Oscillation (NAO), have a marked effect on the timing of spring migration of birds. It has however been suggested that long-distance migrants wintering in Africa could respond less to [...]
Article
Manuel Martin-Vivaldi, Auteur ;
Magdalena Ruiz-Rodríguez, Auteur ;
María Méndez, Auteur ;
Juan J. Soler, Auteur
Animals should invest in the immune system to protect themselves from parasites, but the cost of immune responses may limit investment depending on resource availability. In birds' broods, senior and junior chicks in size hierarchies face differ[...]
