| Titre : | Journal of Avian Biology 43(3) - MAY 2012 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Diego T. Tuero, Auteur ;
Vanina D. Fiorini, Auteur ;
Bettina Mahler, Auteur ;
Juan C. Reboreda, Auteur
In birds, egg size affects chick growth and survival and it is an important component of reproductive success. The shiny cowbird Molothrus bonariensis is an extreme generalist brood parasite that uses hosts with a wide range of body masses. Surv[...]
Article
Mark L. Roberts, Auteur ;
Katherine L. Buchanan, Auteur ;
Arthur R. Goldsmith, Auteur ;
Matthew R. Evans, Auteur
Secondary sexual signals are thought to indicate individual quality. In order to understand the evolutionary pressures that give rise to such traits it is important to understand the physiological mechanisms underlying their production. The blac[...]
Article
Divergent diving behavior during short and long trips of a bimodal forager, the little auk Alle alle
Zachary W. Brown, Auteur ;
Jorg Welcker, Auteur ;
Ann M. A. Harding, Auteur ;
Wojciech Walkusz, Auteur ;
Nina J. Karnovsky, Auteur
The purpose of this study was to characterize for the first time seabird diving behavior during bimodal foraging. Little auks Alle alle, small zooplanktivorous Alcids of the High Arctic, have recently been shown to make foraging trips of short a[...]
Article
Jesse R. Conklin, Auteur ;
Phil F. Battley, Auteur
In the annual cycle of migratory birds, temporal and energetic constraints can lead to carry-over effects, in which performance in one life history stage affects later stages. Bar-tailed godwits Limosa lapponica baueri, which achieve remarkably [...]
Article
Christiaan Both, Auteur ;
Robert A. Robinson, Auteur ;
Henk P. van der Jeugd, Auteur
Long-distance dispersal can potentially have important consequences for evolutionary change, but is difficult to quantify. We present quantitative estimates of natal dispersal between the UK and the Netherlands in a long-distance migratory bird,[...]
Article
Andrew J. Bouland, Auteur ;
Ariel E. White, Auteur ;
Kevin P. Lonabaugh, Auteur ;
Claire W. Varian-Ramos, Auteur ;
Daniel A. Cristol, Auteur
Mercury is a ubiquitous environmental pollutant that can negatively impact physiology and behavior of vertebrates, causing sub-lethal changes in condition and reducing fitness. Here we examine its effect on offspring sex ratio. Previous studies [...]
Article
Simon R. Evans, Auteur ;
Alex G. R. Summers, Auteur ;
Ben C. Sheldon, Auteur
Plumage coloration has provided important model systems for research on signal expression. Whilst it had previously been assumed that moulting provided the only mechanism to change plumage coloration, recent studies have shown plumage colours to[...]
Article
Walter H. Piper, Auteur ;
Jason S. Grear, Auteur ;
Michael W. Meyer, Auteur
Survival is a vexing parameter to measure in many young birds because of dispersal and delayed impacts of natal rearing conditions on fitness. Drawing upon marking and resighting records from an 18-yr study of territorial behavior, we used Corma[...]
Article
Brendan A. Graham, Auteur ;
Theresa M. Burg, Auteur
Hairy woodpeckers Picoides villosus are a common, year round resident with distinct plumage and morphological variation across North America. We genotyped 335 individuals at six variable microsatellite loci and analyzed 322 mtDNA control region [...]
Article
Ismael Galvan, Auteur ;
Eduardo Aguilera, Auteur ;
Francisco Atienzar, Auteur ;
Emilio Barba, Auteur ;
Guillermo Blanco, Auteur ;
Jose L. Canto, Auteur ;
Veronica Cortes, Auteur ;
Oscar Frias, Auteur ;
Istvan Kovacs, Auteur ;
Leandro Melendez, Auteur ;
Anders P. Moller, Auteur ;
Juan S. Monrós, Auteur ;
Péter L. Pap, Auteur ;
Ruben Piculo, Auteur ;
Juan C. Senar, Auteur ;
David Serrano, Auteur ;
José L. Tella, Auteur ;
Csongor I. Vágási, Auteur ;
Matthias Voegeli, Auteur ;
Roger Jovani, Auteur
Feather mites are arthropods that live on or in the feathers of birds, and are among the commonest avian ectosymbionts. However, the nature of the ecological interaction between feather mites and birds remains unclear, some studies reporting neg[...]
