| Titre : | Bird Conservation International 17(3) - SEP 2007 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Mariana M. Vale, Auteur ;
J. Bruce Bell, Auteur ;
Maria Alice S. Alves, Auteur ;
Stuart L. Pimm, Auteur
Cercomacra carbonaria and Synallaxis kollari are passerine birds endemic to the gallery forests of Roraima state in northernmost Brazil and adjacent Guyana. The IUCN Red List of Threatened Species lists both as Vulnerable but they have been remo[...]
Article
Rob Simmons, Auteur ;
Neil Baker, Auteur ;
Rod Braby, Auteur ;
Tim Dodman, Auteur ;
Oliver Nasirwa, Auteur ;
Stephanie Tyler, Auteur ;
Wilferd Versfeld, Auteur ;
Keith Wearne, Auteur ;
Marius Wheeler, Auteur
Species that show obvious population declines are relatively easy to categorize as globally threatened under IUCN Red List criteria. However, species whose populations are highly concentrated at a few inaccessible sites that are unprotected or h[...]
Article
Hugo J. Rainey, Auteur ;
Klaus Zuberbuhler, Auteur
Distance sampling, line transects and radio-tracking have been used previously to estimate population abundances and movements of hornbills. We used a large dataset of audio recordings made over 10 years to estimate seasonal variation in abundan[...]
Article
Ute Bradter, Auteur ;
Sundev Gombobaatar, Auteur ;
Chuluunbaatar Uuganbayar, Auteur ;
Tracy E. Grazia, Auteur ;
Klaus-Michael Exo, Auteur
Habitat loss and degradation are critical threats for the globally threatened White-naped Crane Grus vipio. We estimated the size of the area used per day and the time budgets of parental and non-parental White-naped Crane pairs in north-eastern[...]
Article
S. van Balen, Auteur ;
Vincent Nijman, Auteur
In a manuscript written by August Spennemann in the 1930s, information is presented on display behaviour, vocalizations and habitat at two hitherto unknown localities of the Javanese Lapwing Vanellus (Hoplopterus) macropterus, a species last rec[...]
Article
Mai Yasue, Auteur ;
Allison Patterson, Auteur ;
Philip Dearden, Auteur
Resort development and coastal beach erosion have led to declines in beach breeding habitat for the near-threatened Malaysian Plover (Charadrius peronii) in the Gulf of Thailand. Semi-natural saltflats may provide supplementary nesting areas. We[...]
Article
Vitaliy V. Ryabtsev, Auteur ;
Todd E. Katzner, Auteur
The Eastern Imperial Eagle (Aquila heliaca), a vulnerable and declining species, is widely but sparsely distributed throughout its range. Because much of that range extends through the Russian-speaking world, relatively little on the species has[...]
Article
Stephen T. Garnett, Auteur ;
Les Christidis, Auteur
Concern has been expressed that failure to adopt phylogenetic or related species concepts will result in biodiversity loss. Here we describe how widespread adoption of such concepts may affect conservation administration and the social contract [...]
Article
Ákos Klein, Auteur ;
Tibor Nagy, Auteur ;
Tibor Csörgő, Auteur ;
Robert Mátics, Auteur
Nest-site reduction has played a significant role in the decline of Barn Owl Tyto alba populations throughout Europe and North America. Techniques of nest-site augmentation, involving the provision of nest-boxes, have been widely used in a range[...]
