| Titre : | Ardea 98(2) - FAL 2010 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Mats Peterz, Auteur ;
Sven Blomqvist, Auteur
In evolutionary ecology, environmental monitoring and conservation management, reliable information on phenotypic and demographic traits in marine seabirds is highly wanted, but difficult to acquire. Therefore, freshly dead Common Guillemots Uri[...]
Article
Christiane E. Hubner, Auteur ;
Ingunn M. Tombre, Auteur ;
Larry R. Griffin, Auteur ;
Maarten J. J. E. Loonen, Auteur ;
Paul Shimmings, Auteur ;
Ingibjorg S. Jonsdottir, Auteur
During the spring migration arctic-breeding geese pause in temperate and sub-arctic staging areas in order to deposit body reserves for breeding. Focusing on a single arctic stopover site in West-Spitsbergen, Svalbard, Norway (Varsol-bukta, 77 d[...]
Article
Casper Kraan, Auteur ;
Jan A. van Gils, Auteur ;
Bernard Spaans, Auteur ;
Anne Dekinga, Auteur ;
Theunis Piersma, Auteur
Afro-Siberian Red Knots Calidris canutus canutus use the western Dutch Wadden Sea as a refuelling area during southward migration from Taimyr to West Africa. Here we document the decline of their food stocks in this area, based on a yearly large[...]
Article
John W. Wilson, Auteur ;
Ross M. Wanless, Auteur ;
Marie-Helene Burle, Auteur ;
Andrea Angel, Auteur ;
Petrus Kritzinger, Auteur ;
Barry Stead, Auteur
We investigated the breeding biology of the Brown Noddy Anous stolidus at its southern-most breeding locality, cold-temperate Gough Island (40 degrees S) in the South Atlantic Ocean. We monitored 19 nests over three seasons for breeding schedule[...]
Article
Eduardo Garcia-Del-Rey, Auteur ;
Charles T. Collins, Auteur ;
Nicholas W. Volpone, Auteur
As a first step to investigate the foraging ecology of the Plain Swift Apus unicolor in the Canary Islands, we studied the food brought to the nestlings. A total of 12,800 aerial prey items were identified from 32 food boluses. 97.3% of the prey[...]
Article
Mohamed Amezian, Auteur ;
John Cortes, Auteur ;
Ian Thompson, Auteur ;
Keith Bensusan, Auteur ;
Charles Perez, Auteur ;
Anass Louah, Auteur ;
Mohammed Aziz El Agbani, Auteur ;
Abdeljebbar Qninba, Auteur
A complete moult north of the Sahara has never been reported conclusively in the Reed Warbler Acrocephalus scirpaceus complex. During a ringing program carried out in the Smir marshes (northern Morocco) 140 adults and 292 juvenile Reed Warblers [...]
Article
Maud Poisbleau, Auteur ;
Laurent Demongin, Auteur ;
Hendrika J. van Noordwijk, Auteur ;
Ian J. Strange, Auteur ;
Petra Quillfeldt, Auteur
Following recent phylogenetic work, Rockhopper Penguins were suggested to consist of two or three species. For the Southern Rockhopper Penguin Eudyptes c. chrysocome, sexual dimorphism has not been studied in detail, and only a few previous stud[...]
Article
Esther Del Val, Auteur ;
Javier Quesada, Auteur ;
Juan Carlos Senar, Auteur
Adult birds usually display brighter plumage coloration than younger individuals. This difference may be either due to selection against less coloured yearlings or to an increase in coloration after their first complete moult. In this study, we [...]
Article
Arne Hegemann, Auteur ;
Henk P. van der Jeugd, Auteur ;
Merlijn de Graaf, Auteur ;
Lotte L. Oostebrink, Auteur ;
B. Irene Tieleman, Auteur
In recent years, Skylarks Alauda arvensis have undergone dramatic population declines in many European countries. Evidence exists for deteriorating conditions during the breeding season, but little is known about the situation during the rest of[...]
Article
Peter G. Ryan, Auteur ;
Robert A. Ronconi, Auteur
Tristan Thrushes or Starchies Nesocichla eremita are known to feed on seabird eggs. We show they are able to open the eggs of birds as large as small albatrosses. Starchies were involved in almost half of all egg losses by Great Shearwaters Puff[...]
Article
Roland E. Van der Vliet, Auteur ;
Jerry Van Dijk, Auteur ;
Martin J. Wassen, Auteur
Meadow bird species in the Netherlands have shown a long-term decline in numbers. This has been generally attributed to agricultural intensification, but in addition an increase of disturbing elements may have played a role in the decline. In th[...]
Article
Ülo Väli, Auteur
Greater Spotted Eagle Aquila clanga and Lesser Spotted Eagle Aquila pomarina are hybridising Eurasian raptors, but our knowledge of hybrid fertility is poor. Here, I present a case of interbreeding between a F1 hybrid spotted eagle male and a Le[...]
Article
C. J. M. Musters, Auteur ;
W. J. Ter Keurs, Auteur ;
G. R. de Snoo, Auteur
Long-distance migratory bird species might face larger problems to adapt to local climate change in their breeding area than short-distance migrants. This study investigated the effect of climatic change on the timing of the breeding season of t[...]
Article
Juan Arizaga, Auteur ;
Agustin Mendiburu, Auteur ;
Daniel Alonso, Auteur ;
Juan E. Cuadrado, Auteur ;
Jose I. Jauregi, Auteur ;
José M. Sánchez, Auteur
Iberia receives many dispersing, migrating and wintering Common Kingfishers Alcedo atthis. The majority of these individuals occur in coastal marshes. Between August and mid-October 2007 and 2008, Kingfishers were mist-netted at a tidal marsh in[...]
Article
Maria Paula Delgado, Auteur ;
Juan Traba, Auteur ;
Eladio L. Garcia de la Morena, Auteur ;
Manuel B. Morales, Auteur
This study analyses habitat selection by male Little Bustards Tetrax tetrax of a central Spanish population within their display sites during two consecutive breeding seasons. The areas of sexual display sites were determined by applying minimum[...]
