| Titre : | Ardea 101(1) - Spring, 2013 |
| Type de document : | Bulletin |
| Paru le : | 01/03/2013 |
Dépouillements
Article
Andrew Dixon, Auteur ;
J. Paul Haffield, Auteur
In Britain the Common Crossbill Loxia curvirostra population has increased markedly in abundance and range with the maturing of the post-war forestry plantations. However, little published information exists on the breeding ecology of the specie[...]
Article
Ruben C. Fijn, Auteur ;
Derick Hiemstra, Auteur ;
Richard A. Phillips, Auteur ;
Jan van der Winden, Auteur
Arctic Terns Sterna paradisaea have an exceptionally long-distance migration, annually travelling back and forth between the Arctic and the Antarctic. Birds from Greenland, Iceland and the USA were recently found to spend most of the non-breedin[...]
Article
Theunis Piersma, Auteur
Almost all accounts of the reproductive biology of House Martins Delichon urbicum are based on studies of birds breeding in artificial nests that are monitored every few days. Here, I provide a study on House Martins using self-built mud nests a[...]
Article
Yahkat Barshep, Auteur ;
Les G. Underhill, Auteur ;
S. Balachandran, Auteur ;
David J. Pearson, Auteur
We investigated the adaptations of primary moult to conditions on the non-breeding areas in the Curlew Sandpiper Calidris ferruginea, an Arctic breeding, long-distance migratory wader (shorebird). Parameters of moult (start date, duration, and s[...]
Article
Johanne Martens, Auteur ;
Dieter Hoppe, Auteur ;
Friederike Woog, Auteur
Observations on the diet and feeding behaviour of naturalised Yellow-headed Amazona oratrix and Blue-fronted Amazon Parrots Amazona aestiva xanthopteryx and their hybrids were carried out in the city of Stuttgart, southwest Germany, the only Eur[...]
Article
Joseph B. Williams, Auteur ;
Morne Du Plessis, Auteur
Green Woodhoopoes (Phoeniculidae: Phoeniculus purpureus) are cooperative breeding birds that live throughout the year in groups of 2 to 16 individuals. Individuals roost in groups in cavities at night. The energy savings associated with communal[...]
Article
Els Atema, Auteur ;
Kees van Oers, Auteur ;
Simon Verhulst, Auteur
Estimating the number of genome copies in a tissue sample can serve various purposes. For example, such an estimate serves as a scaling variable when measuring telomeres with quantitative PCR. We describe the primer development and evaluation fo[...]
Article
H. Herman van Oosten, Auteur ;
Alexander A. Emtsev, Auteur
The Yellow Wagtail Motacilla flava consists of about 18 taxa whose taxonomic relationships are unclear. Some authors elevate 11 taxa to species based on often characteristic nuptial plumages of males, whereas others recognize two species based o[...]
Article
Rob G. Bijlsmal, Auteur ;
Han ten Seldam, Auteur
Contrary to expectations, a manyfold increase in human-provided carcasses was paralleled by a near-total failure of breeding success in a small Raven Corvus corax population in the central Netherlands. Shot game and road casualties had been depo[...]
Article
Frank Huysentruyt, Auteur ;
Kristof Baert, Auteur ;
Jim Casaer, Auteur
To determine the start of the breeding season of Common Woodpigeon Columba palumbus in Flanders, the gonads of 185 adult Woodpigeons were examined. Analysis of testis size showed that male Woodpigeons became sexually active in March. Follicle si[...]
Article
Maud Poisbleau, Auteur ;
Laurent Demongin, Auteur ;
Loic A. Hardouin, Auteur ;
David Carslake, Auteur ;
Marcel Eens, Auteur ;
Petra Quillfeldt, Auteur
We analysed the vocalisation behaviour of Rockhopper Penguin chicks Eudyptes chrysocome during hatching. Hatching vocalisation rates (in number per minute) were not consistently influenced by ambient air temperature. They did not differ between [...]
