| Titre : | Ibis : The International Journal of Avian Science 154(3) - JUL 2012 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Elsa Bonnaud, Auteur ;
Gerald Berger, Auteur ;
Karen Bourgeois, Auteur ;
Jerome Legrand, Auteur ;
Eric Vidal, Auteur
Feral cats are considered to be one of the main harmful invasive species for island species. Adult shearwaters are highly vulnerable to predation by cats. The population of the Yelkouan Shearwater Puffinus yelkouan, a species endemic to the Medi[...]
Article
Andrea C. Bowling, Auteur ;
Julien Martin, Auteur ;
Wiley M. Kitchens, Auteur
The degradation of habitats due to human activities is a major topic of interest for the conservation and management of wild populations. There is growing evidence that the Florida Everglades ecosystem continues to suffer from habitat degradatio[...]
Article
Rebecca L. Stirnemann, Auteur ;
John O'Halloran, Auteur ;
Margaret Ridgway, Auteur ;
Alison Donnelly, Auteur
Understanding the departure decisions of migratory birds is critical for determining how changing climatic conditions will influence subsequent arrival times on the breeding grounds. A long-term dataset (1972-2008) of Whooper Swan Cygnus cygnus [...]
Article
Jan I. Ohlson, Auteur ;
Martin Irestedt, Auteur ;
Jon Fjeldså, Auteur ;
Per G. P. Ericson, Auteur
The Kinglet Calyptura Calyptura cristata is one of the most enigmatic bird species in South America, known only from specimens collected in the 19th century and a few recent observations. Knowledge of its biology is scanty and its systematic pos[...]
Article
Jerome Fuchs, Auteur ;
Jeff A. Johnson, Auteur ;
David P. Mindell, Auteur
The Polyborinae is the most diverse subfamily of the Falconidae in terms of both morphology and behaviour, and includes falconet-shaped birds (Spiziapteryx), arboreal omnivores (Daptrius, Ibycter), as well as terrestrial generalists and scavenge[...]
Article
Ainhoa Mateo-Moriones, Auteur ;
Rafael Villafuerte, Auteur ;
Pablo Ferreras, Auteur
A better knowledge of chick survival rates is required to enable understanding of the population dynamics of gamebirds and to develop management measures to conserve their populations. The Red-legged Partridge Alectoris rufa is a highly valued g[...]
Article
Bo T. Bonnevie, Auteur ;
Maëlle Connan, Auteur ;
Christopher D. McQuaid, Auteur
Estimating total breeding populations (I) for species that exhibit biennial breeding is generally done from counts of individuals that breed in each year (N), but can be complicated by the fact that the proportion of individuals breeding varies [...]
Article
Duncan R. Sutherland, Auteur ;
Peter Dann, Auteur
Seabird numbers can change rapidly as a result of environmental processes, both natural and anthropogenic. Informed management and conservation of seabirds requires accurate and precise monitoring of population size. However, for burrow-nesting [...]
Article
Pim Edelaar, Auteur ;
José L. Tella, Auteur
Article
Simone Immler, Auteur ;
Simon C. Griffith, Auteur ;
Richard Zann, Auteur ;
Tim R. Birkhead, Auteur
The Zebra Finch Taeniopygia guttata is a model bird species for the experimental study of behavioural and evolutionary concepts in captivity and especially sexual selection. The validity of sexual selection studies of domesticated birds is of lo[...]
Article
Judith D. Toms, Auteur ;
John Faaborg, Auteur ;
Wayne J. Arendt, Auteur
Article
Judit K. Szabo, Auteur ;
Richard A. Fuller, Auteur ;
Hugh P. Possingham, Auteur
Estimates of population size are frequently used in conservation. Volunteer-conducted surveys are often the only source of information available, but their reliability is unclear. We compare data from a weakly structured national bird atlas coll[...]
Article
Graham R. Martin, Auteur ;
Steven J. Portugal, Auteur ;
Campbell P. Murn, Auteur
The visual fields of vultures contain a small binocular region and large blind areas above, below and behind the head. Head positions typically adopted by foraging vultures suggest that these visual fields provide comprehensive visual coverage o[...]
Article
Matthieu Guillemain, Auteur ;
Carol Fouque, Auteur ;
Jordi Figuerola, Auteur
Signalling self-ability to maintain vigilance may help in securing a mate, while providing accurate information about vigilance status may result in conspecifics adjusting their own scanning rate of the environment, potentially to the individual[...]
Article
Shin Matsui, Auteur ;
Masaoki Takagi, Auteur
Appropriate nest-site selection is one of the most important ways to minimize loss of reproductive investment due to predation. We determined the environmental characteristics associated with nest predation during the incubation and nestling per[...]
Article
Cody J. Dey, Auteur ;
Ian G. Jamieson, Auteur ;
James S. Quinn, Auteur
Intrasexual competition for reproduction is thought to be an important factor in the evolution of ornaments and weapons in males. However, the evolution of morphologically similar traits in females is often explained through other mechanisms, an[...]
Article
Mattia Brambilla, Auteur ;
Severino Vitulano, Auteur ;
Andrea Ferri, Auteur ;
Fernando Spina, Auteur ;
Elena Fabbri, Auteur ;
Ettore Randi, Auteur
Genetic markers are often used to trace the geographical origin of migrating birds. Such an approach has been used to attribute individuals of a given species to a given population, but it could also be applied to cryptic species, which are not [...]
Article
Erica P. Van Rooij, Auteur ;
Simon C. Griffith, Auteur
When multiple ornaments are expressed in both sexes, they are generally assumed to be maintained by mutual sexual selection and have a function in mate choice. In the Long-tailed Finch Poephila acuticauda both sexes exhibit multiple ornaments th[...]
Article
Allan J. Perkins, Auteur ;
Adam Watson, Auteur ;
Hywel E. Maggs, Auteur ;
Jeremy D. Wilson, Auteur
Associations between habitat and animal distributions are widely used to make conservation recommendations. However, short-term studies do not allow investigation of temporal variation in associations as habitats change or populations decline. H[...]
Article
Keith A. Tarvin, Auteur ;
Troy G. Murphy, Auteur
Article
Amelia J. Koch, Auteur ;
Kathy Martin, Auteur ;
Kathryn E. H. Aitken, Auteur
The European Starling Sturnus vulgaris is an introduced species in North America and is an aggressive competitor for tree cavity nest-sites. Starlings are commonly considered to influence nest-site selection and reproductive success of native ca[...]
Article
Mark W. Wilson, Auteur ;
Barry O'Donoghue, Auteur ;
Barry O'Mahony, Auteur ;
Chris Cullen, Auteur ;
Tim O'Donoghue, Auteur ;
Geoff Oliver, Auteur ;
Barry Ryan, Auteur ;
Paul Troake, Auteur ;
Sandra Irwin, Auteur ;
Thomas C. Kelly, Auteur ;
Jay J. Rotella, Auteur ;
John O'Halloran, Auteur
During the past century, the upland breeding areas of Hen Harriers in Ireland have been extensively afforested. There is no evidence that this species avoids breeding in heavily forested landscapes and, indeed, young commercial forests in their [...]
