| Titre : | Journal of Avian Biology 38(3) - MAY 2007 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Petra Quilifeldt, Auteur ;
Ian J. Strange, Auteur ;
Juan F. Masello, Auteur
Seabirds are important predators in marine ecosystems and are commonly used to monitor the productivity of their marine environments. However, different measures of seabird breeding success differ in their sensitivity to environmental conditions[...]
Article
Diego Gil, Auteur ;
Peter J. B. Slater, Auteur ;
Jeff A. Graves, Auteur
Complexity in bird song is often argued to be advantageous in processes of sexual selection, and numerous studies show that characteristics of song are associated with increased success in territory defence or mate attraction. Less evidence exis[...]
Article
Maria I. Sandell, Auteur ;
Elizabeth Adkins-Regan, Auteur ;
Ellen D. Ketterson, Auteur
The ability of mothers to modify offspring phenotype to match prevailing environmental conditions is an important component of reproductive success, especially in variable environments. Pre-breeding conditions, such as food abundance, may have s[...]
Article
Sonya K. Auer, Auteur ;
Ronald D. Bassar, Auteur ;
Thomas E. Martin, Auteur
Biparental care in birds is less common during incubation than in other nesting stages. Males share in incubating eggs in a minority of bird species, and male effort is generally thought to be lower than females when sharing does Occur. However,[...]
Article
Peter Korsten, Auteur ;
Tobias Limbourg, Auteur ;
Catherine M. Lessells, Auteur ;
Jan Komdeur, Auteur
Ultraviolet (UV) plumage is thought to be sexually selected through intra-sexual competition, female choice and differential allocation. Experimental manipulations of plumage UV reflectance are essential to demonstrate that mate choice or intra-[...]
Article
Anton Antonov, Auteur ;
Bard G. Stokke, Auteur ;
Arne Moksnes, Auteur ;
Eivin Roskaft, Auteur
Using multiple logistic regression analysis, we investigated the influence of nest site characteristics, laying date and nest size in marsh warblers Acrocepbalus palustris on the risk of parasitism by common cuckoos cuculus canorus. Marsh warble[...]
Article
Josue Martinez-De La Puente, Auteur ;
Santiago Merino, Auteur ;
Juan Moreno, Auteur ;
Gustavo Tomás, Auteur ;
Judith Morales, Auteur ;
Elisa Lobato, Auteur ;
Sonia Garcia-Fraile, Auteur ;
Javier Martínez, Auteur
We explore the relationship between general eggshell colour (background and spots) and proportion Of Surface covered by spots on the eggs of blue tits Cyanistes caeruleus and several variables reflecting female health and condition. Females layi[...]
Article
Harnesses are indispensable for a long-term attachment of instruments to animals, particularly birds. The exact fit is crucial for both the reliability of the tags and the animals' health and natural behaviour. Using data from 19 bird species ra[...]
Article
Kathryn E. Arnold, Auteur ;
Jonathan D. Blount, Auteur ;
Neil B. Metcalfe, Auteur ;
Kate J. Orr, Auteur ;
Aileen Adam, Auteur ;
David Houston, Auteur ;
Pat Monaghan, Auteur
Individuals can compensate for poor early, nutrition by accelerating their growth rates once diet improves, but if malnutrition Occurs at a key stage of development only certain body structures may compensate fully. This degree of compensation i[...]
Article
K. C. Burns, Auteur ;
Jayden van Horik, Auteur
We presented monogamous pairs of New Zealand robins Petroica australis with a Superabundant Supply Of artificial prey and then observed birds re-cache previously hoarded prey. Males and females frequently relocated and redistributed previously h[...]
Article
Carlos A. Martín, Auteur ;
Juan C. Alonso, Auteur ;
Javier A. Alonso, Auteur ;
Carlos Palacín, Auteur ;
Marina Magana, Auteur ;
Beatriz Martín, Auteur
We explored sex-biased mortality patterns in a species showing the most extreme sexual dimorphism among birds, the great bustard Otis tarda. Between 1991 and 2005 we studied juvenile and immature Survival in a sample of 361 great bustards radio-[...]
Article
Marcel Honza, Auteur ;
Katerina Voslajerova, Auteur ;
Csaba Moskát, Auteur
We studied the eviction behaviour of common cuckoo Cuculus canorus chicks by video recording at nests of great reed warblers Acrocephalus arundinaceus and reed warblers Acrocephalus scirpaceus. There were no significant differences in hatching m[...]
Article
Will Cresswell, Auteur ;
Johan Lind, Auteur ;
John L. Quinn, Auteur ;
Jeroen Minderman, Auteur ;
D. Philip Whitfield, Auteur
The use of metal and colour-rings or bands as a means of measuring Survival, movements and behaviour in birds is universal and fundamental to testing ecological and evolutionary theories. The practice rests on the largely untested assumption tha[...]
Article
G. Michael Haramis, Auteur ;
William A. Link, Auteur ;
Peter C. Osenton, Auteur ;
David B. Carter, Auteur ;
Richard G. Weber, Auteur ;
Nigel A. Clark, Auteur ;
Mark A. Teece, Auteur ;
David S. Mizrahi, Auteur
We used stable isotope (SI) methods in combination with pen feeding trials to determine the importance of eggs of the Atlantic horseshoe crab Limulus polyphemus to migratory fattening of red knots Calidris canutus rufa and ruddy turnstones Arena[...]
Article
Seppo Rytkönen, Auteur ;
Laura Kvist, Auteur ;
Riikka Mikkonen, Auteur ;
Markku Orell, Auteur
We asked whether willow tit Parus montanus males adjust their parental care according to their paternity in current brood. The origin of the nestlings was determined by using molecular technique, and the studied broods were assigned into extra-p[...]
Article
Elizabeth Yohannes, Auteur ;
Keith A. Hobson, Auteur ;
David J. Pearson, Auteur
Stable nitrogen (delta(15)N), carbon (delta(13)C) and hydrogen (delta D) isotope profiles in feathers of nine migratory bird species trapped in Kenya were examined to test the extent to which they were segregated, geographically or by habitat, d[...]
Article
Jan T. Lifjeld, Auteur ;
Terje Laskemoen, Auteur ;
Frode Fossoy, Auteur ;
Arild Johnsen, Auteur ;
Oddmund Kleven, Auteur
Information about male infertility in free-living birds is scarce, but anecdotal and circumstantial evidence suggests that it does occur regularly at a low frequency. In this paper we document three cases of azoospermia in two passerine species,[...]
Article
Colleen A. Barber, Auteur ;
Raleigh J. Robertson, Auteur
It is well established that extra-pair young are present to varying degrees in nests of most avian species. However, the timing of extra-pair copulations during a female's fertile cycle is not well known, nor is how these copulations translate i[...]
Article
Gergely Hegyi, Auteur ;
János Török, Auteur
Young birds often face poor food Supply, which reduces their growth and development. However, if the shortage Of resources is only temporary, there is a possibility to adjust the growth trajectory of morphological traits after the end of the sho[...]
Article
Andrew E. McKechnie, Auteur ;
Robert A. M. Ashdown, Auteur ;
Murray B. Christian, Auteur ;
R. Mark Brigham, Auteur
Recent data Suggest that facultative hypothermic responses such as torpor are more important in the energy balance of birds from tropical and sub-tropical regions than previously thought. We used telemetric measurements of skin temperature (T(sk[...]
Article
Robert G. Moyle, Auteur ;
Jerome Fuchs, Auteur ;
Eric Pasquet, Auteur ;
Ben D. Marks, Auteur
The pygmy kingfishers of the Old World tropics (Alcedininae) display a range of feeding behaviors, plumage types, and morphologies that have caused much taxonomic confusion in the group. We sequenced mitochondrial and nuclear genes to reconstruc[...]
Article
Timothy J. Greives, Auteur ;
Joseph M. Casto, Auteur ;
Ellen D. Ketterson, Auteur
Relative numbers of males and females in breeding groups may vary from expected values owing to a variety of factors. To determine how sex ratio might influence individual phenotypes in a captive Population of dark-eyed juncos Junco hyemalis dur[...]
