| Titre : | Vogelwelt (Die) 123(1) - 2002 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Christoph Randler, Auteur
Population trend of urban Mallards and changes in the proportion of hybrids were studied in and around Stuttgart (9degree10'/48degree47'), SW-Germany, to assess the potential threats posed by hybridisation with other waterfowl to the indigenous [...]
Article
Alwin Schoenenberger, Auteur ;
Hans-Guenther Bauer, Auteur
Since the end of the 1970s the Rock Thrush can again be regarded as a regular, albeit rare, breeding bird of the northern alpine regions of Vorarlberg (western Austria). Several breeding sites are regularly occupied by at least one pair each wit[...]
Article
Ortwin Elle, Auteur
This study deals with interspecific territoriality of Blackcap and Garden Warbler on a 45 ha study plot of syntopic occurrence, situated in a wood-meadow ecotone. Little mutual spatial overlap of the bird territories, along with similar habitat [...]
Article
Angelica Kahl-Dunkel, Auteur ;
Richard Werner, Auteur
Since 1967 Ring-necked Parakeets are known to live in the Cologne area. When preparing a map of the breeding bird population of Cologne, we asked the public to assist in locating resting/sleeping places at which these birds might spend the night[...]
Article
Disturbance as an important factor in the decline of Black Terns Chlidonias niger in The Netherlands
Jan van der Winden, Auteur
Black Terns declined considerably in The Netherlands this century, which is attributed to habitat loss, deterioration of nesting sites, insufficient feeding conditions, disturbance and predation. So far, only for the first three factors evidence[...]
Article
Miroslav Saniga, Auteur
From 1988 - 2000, the diet of the Capercaillie was studied in the mountains of the West Carpathians (the Vel'ka Fatra Mts., Mala Fatra Mts., Nizke Tatry Mts., Starohorske vrchy Mts., and Kremnicke vrchy Mts., Slovakia). In spring (March-May), Ca[...]
Article
Christoph Randler, Auteur
Population trend of urban Mallards and changes in the proportion of hybrids were studied in and around Stuttgart (9degree10\'/48degree47\'), SW-Germany, to assess the potential threats posed by hybridisation with other waterfowl to the indigenou[...]
Article
Ortwin Elle, Auteur
This study deals with interspecific territoriality of Blackcap and Garden Warbler on a 45 ha study plot of syntopic occurrence, situated in a wood-meadow ecotone. Little mutual spatial overlap of the bird territories, along with similar habitat [...]
Article
Alwin Schoenenberger, Auteur ;
Hans-Guenther Bauer, Auteur
Since the end of the 1970s the Rock Thrush can again be regarded as a regular, albeit rare, breeding bird of the northern alpine regions of Vorarlberg (western Austria). Several breeding sites are regularly occupied by at least one pair each wit[...]
Article
Disturbance as an important factor in the decline of Black Terns Chlidonias niger in The Netherlands
Jan van der Winden, Auteur
Black Terns declined considerably in The Netherlands this century, which is attributed to habitat loss, deterioration of nesting sites, insufficient feeding conditions, disturbance and predation. So far, only for the first three factors evidence[...]
