| Titre : | Ardea 103(2) - Winter, 2015 |
| Type de document : | Bulletin |
| Paru le : | 01/12/2015 |
Dépouillements
Article
A. Lindstroem, Auteur ;
M. Green, Auteur ;
M. Husby, Auteur ;
J. A. Kalas, Auteur ;
A. Lehikoinen, Auteur
Article
Theunis Piersma, Auteur
Article
Giovanni Boano, Auteur ;
Fabrizio Silvano, Auteur
The survival probability of adult Scops Owls was studied in NW Italy, near the northern limits of the European breeding range. The species reappeared in the study area at the beginning of this century, after more than 30 years of absence as a br[...]
Article
Jochen Bellebaum, Auteur ;
Wolfgang Maedlow, Auteur
Adult sex ratio in ducks is male-biased, probably due to higher mortality of incubating females. In an introduced population of Mandarin Ducks Aix galericulata in Berlin and Potsdam, adult sex ratio (proportion of males) was 0.65 (95% confidence[...]
Article
Zsolt Vegvari, Auteur ;
Zoltán Barta, Auteur
Along several migratory corridors in Europe, the Common Crane Grus grus exhibits a variety of migratory and roost site selection strategies. In this study we determined which environmental factors explained roost-site usage of Common Cranes in 6[...]
Article
Dorine Y. M. Jansen, Auteur ;
Adam M. Wilson, Auteur ;
Res Altwegg, Auteur
The focus of most research on the influence of recent climate change on birds has been on the northern hemisphere. Climate change has been different in the southern hemisphere, prohibiting extrapolation from northern research findings and infere[...]
Article
Amelia J. Raquel, Auteur ;
Kevin M. Ringelman, Auteur ;
Joshua T. Ackerman, Auteur ;
John M. Eadie, Auteur
Edge effects on nesting success have been documented in breeding birds in a variety of contexts, but there is still uncertainty in how edge type, and spatial scale determine the magnitude and detectability of edge effects. Habitat edges are ofte[...]
Article
Leo Zwarts, Auteur ;
Rob G. Bijlsma, Auteur
For a study of long-distance migrants in sub-Saharan Africa, a census method was developed that combined precision and accuracy regarding bird numbers and tree choice. The number of birds present in trees and shrubs can be counted accurately,. a[...]
Article
Leo Zwarts, Auteur ;
Rob G. Bijlsma, Auteur ;
Jan Van der Kamp, Auteur ;
MARTEN Sikkema, Auteur ;
Eddy Wymenga, Auteur
In West Africa, tree preferences of wintering migratory birds (and African residents) were quantified in order to assess the importance of wintering conditions on distribution, abundance and trends of insectivorous woodland birds. This study enc[...]
