| Titre : | Emu - Austral Ornithologie 115(3) - 2015 |
| Type de document : | Bulletin |
| Paru le : | 01/06/2015 |
Dépouillements
Article
Eliza R. Larson, Auteur ;
Justin R. Eastwood, Auteur ;
Katherine L. Buchanan, Auteur ;
Andrew T. D. Bennett, Auteur ;
Mathew L. Berg, Auteur
Climate change is predicted to affect many species by reducing range, habitat suitability and breeding success. Cavity-nesting species, already threatened by deforestation and declining natural hollows, may be particularly at risk because they a[...]
Article
Julia Sommerfeld, Auteur ;
Tony Stokes, Auteur ;
G. Barry Baker, Auteur
Disruption of pair-bonds and switching nest-site are associated with breeding failure in many seabirds. Both strategies can prevent repetition of poor performance with a low-quality mate or at a poor-quality nesting site. In the Red-tailed Tropi[...]
Article
Javier Ciancio, Auteur ;
Florencia Botto, Auteur ;
Esteban Frere, Auteur
The Magellanic Penguin (Spheniscus magellanicus) is the most abundant and widely distributed top marine predator of Atlantic Ocean waters off the Patagonian coast. During the breeding season, this species consumes thousands of tonnes of its prey[...]
Article
Maëlle Connan, Auteur ;
Peter R. Teske, Auteur ;
Anthony J. Tree, Auteur ;
Philip A. Whittington, Auteur ;
Christopher D. McQuaid, Auteur
Five to seven subspecies of Antarctic Tern (Sterna vittata) are recognised, with at least three (S. v. vittata, S. v. tristanensis and S. v. sanctipauli) wintering in South Africa. Morphological characters used to define these subspecies are not[...]
Article
Tammy E. Davies, Auteur ;
Rohan H. Clarke, Auteur ;
John G. Ewen, Auteur ;
Ioan R. A. Fazey, Auteur ;
Nathalie Pettorelli, Auteur ;
Will Cresswell, Auteur
Unprecedented rates of deforestation on tropical islands are threatening high numbers of endemic species, and empirical evidence is needed to better understand the implications of changes in land-use on biodiversity and to guide conservation act[...]
Article
Patrick-Jean Guay, Auteur ;
Lucinda Monie, Auteur ;
Randall W. Robinson, Auteur ;
Wouter F. D. van Dongen, Auteur
Interspecific hybridisation is common amongst birds and is associated with diverse costs and benefits. Several mechanisms are thought to promote hybridisation, including heterospecific mate choice, species recognition errors and interspecific fo[...]
Article
Juan Manuel Grande, Auteur ;
Miguel A. Santillán, Auteur ;
Paula M. Orozco, Auteur ;
María Soledad Liébana, Auteur ;
Marcos Matías Reyes, Auteur ;
Maximiliano Adrián Galmes, Auteur ;
Joaquín Ceregheti, Auteur
Barn Swallows (Hirundo rustica) breeding in North America traditionally wintered in South America. In the 1980s a small breeding population was found in coastal Argentina and since then the breeding range of Barn Swallows in the country has expa[...]
Article
Luke S. C. McCowan, Auteur ;
Mylene M. Mariette, Auteur ;
Simon C. Griffith, Auteur
Despite the zebra finch (Taeniopygia guttata) being used as a model species in behavioural science, the size and composition of social groups in which individuals typically live in the wild when they are not breeding is not well described. We ob[...]
Article
Manuel Agra, Auteur ;
David Bilenca, Auteur ;
Mariano Codesido, Auteur
The Flooding Pampas is the most important livestock region of Argentina, but is a region where replacement of originally natural, perennial tussock grasses by pasture species is changing the heterogeneity of the grassland system. We evaluated th[...]
Article
Sergio R. Camín, Auteur ;
Víctor R. Cueto, Auteur ;
Javier Lopez de Casenave, Auteur ;
Luis Marone, Auteur
Habitat degradation caused by cattle grazing may be a serious threat for seed-eating birds because the availability of beneficial seeds usually diminishes in grazed areas. Ecologically plastic species might, however, circumvent food deprivation [...]
