| Titre : | Ardea 92(1) - SPR 2004 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
J. Van Der Winden, Auteur ;
A. J. Beintema, Auteur ;
L. Heemskerk, Auteur
The Dutch Black Tern Chlidonias niger population showed a decrease of more than 90% over the past 50 years. In some landscape types this decline has continued until recently, but Black Terns in other landscapes have shown a recovery. These trend[...]
Article
P. Edelaar, Auteur ;
K. Terpstra, Auteur
The discovery of discrete vocal types of Common Crossbill in Western Europe opens the possibility that the nominate subspecies Loxia c. curvirostra in fact consists of a group of cryptic, vocally differentiated and reproductively isolated siblin[...]
Article
G. M. Lopez-Iborra, Auteur ;
R. T. Pinheiro, Auteur ;
C. Sancho, Auteur ;
A. Martinez, Auteur
The risk of nest predation may be related to nest size, in which case predation might cause selection for smaller nests, but body size forces larger species to build larger nests. This study attempts to find out whether nest size influences pred[...]
Article
O. Hogstad, Auteur
The Fieldfare Turdus pilaris, a medium-sized passerine, is aggressive in nest defence and its use of faeces may be detrimental to avian but not to mammalian predators. The birds breed either solitarily or in colonies, the nesting pattern in suba[...]
Article
A. Roulin, Auteur
Several hypotheses have been proposed to explain why food is found uneaten in or near nests of raptors, owls and shrikes. The 'insurance' hypothesis states that parents store food to buffer offspring against temporary food shortages generally du[...]
Article
F. Alvarez, Auteur
The Rufous Bush Chat Cercotrichas galactotes is parasitized by the Cuckoo Cuculus canorus. To study how a Cuckoo elicits provisioning by this specific host species, the response of the Rufous Bush Chats to two imitations of the coloration of the[...]
Article
J. Bull, Auteur ;
S. Wanless, Auteur ;
D. A. Elston, Auteur ;
F. Daunt, Auteur ;
S. Lewis, Auteur ;
M. P. Harris, Auteur
The Black-legged Kittiwake Rissa tridactyla is a small gull that is widely distributed in the North Atlantic and Pacific. During the breeding season it feeds mainly on fish and, in the North Sea, the Lesser Sandeel Ammodytes marinus typically fo[...]
Article
O. Duriez, Auteur ;
L. Pastout-Lucchini, Auteur ;
M. Boos, Auteur ;
O. Chastel, Auteur ;
H. Fritz, Auteur ;
Y. Ferrand, Auteur ;
J. Clobert, Auteur
Ecological energetics have been extensively studied in the Scolopacidae, but mostly focused on coastal and wetland species. Living in forests and meadows, the Eurasian Woodcock Scolopax rusticola (mean body mass 317 g) is an exceptional species [...]
Article
T. Lislevand, Auteur ;
I. Byrkjedal, Auteur
In polygynous Northern Lapwings Vanellits vanellus, males incubate less than females, possibly because males give priority to mating activities. We studied how male Lapwings responded to experimental and natural clutch loss after about ten days [...]
Article
M. Brambilla, Auteur ;
D. Rubolini, Auteur
The Water Rail Rallus aquaticus is an elusive and poorly studied species, despite its widespread distribution in Eurasian wetlands. We carried out a survey of the species' macrohabitat preferences during the breeding season at a natural wetland [...]
Article
S. E. Newson, Auteur ;
B. Hughes, Auteur ;
I. C. Russell, Auteur ;
G. R. Ekins, Auteur ;
R. M. Sellers, Auteur
The use of biometrics for sub-specific differentiation of Great Cormorants Phalacrocorax carbo in Europe was investigated using skins of known subspecies and showed that gular pouch angle is a useful character for assigning individuals to sub-sp[...]
Article
C. Both, Auteur
Territory defence has been suggested to serve as a means of preventing extrapair copulations. This hypothesis predicts that territory size is largest during the fertile period, and hence at this time few new territory settlements are expected. I[...]
Article
D. Wysocki, Auteur
This paper is aimed at describing the frequencies of European Blackbird mating strategies observed in an urban population in Central Europe. The study was carried out in 1997-2003 in two Szczecin city parks: Park Z (21.9 ha) and Park K (16 ha). [...]
