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Documents disponibles écrits par cet auteur (6)
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Article
Robert Pfeifer, Auteur ; Jutta Stadler, Auteur ; Roland Brandl, Auteur
Article
Robert Pfeifer, Auteur ; Jutta Stadler, Auteur ; Roland Brandl, AuteurEvery year birdwatchers throughout Europe record the arrival of a considerable number of vagrants from the eastern Palaearctic. We analysed the occurrence of such vagrants in Central Europe of the genera Phylloscopus, Turdus and Zoothera in Cent[...]
Article
Robert Pfeifer, Auteur ; Joerg Mueller, Auteur ; Jutta Stadler, Auteur ; Roland Brandl, AuteurUsing the data from the breeding bird atlas of Bavaria (1996-1999) and land cover data from the European wide project CORINE, we correlated species richness of breeding birds (altogether 208 species) to ten types of landcover using 1927 grids (a[...]
Article
Klaus Schmidtke, Auteur ; Robert Pfeifer, Auteur ; Jutta Stadler, Auteur ; Roland Brandl, AuteurBy using a time series of more than 30 years, we describe the population dynamics of three grebe species occurring in a pond area of north-eastern Bavaria (Tachybaptus ruficollis, Podiceps nigricollis, P. cristatus): (1). The Little Grebe showed[...]
Article
Michael Bacht, Auteur ; Sascha Roesner, Auteur ; Joerg Mueller, Auteur ; Robert Pfeifer, Auteur ; Jutta Stadler, Auteur ; Roland Brandl, Auteur ; Lars Opgenoorth, AuteurThe Ring Ouzel (Turdus torquatus) has an arctic alpine distribution, with small populations also occurring at the higher altitudes of the low mountain ranges north of the Alps. The populations of the Alps and mountain ranges are classified as th[...]
Article
Robert Pfeifer, Auteur ; Jutta Stadler, Auteur ; Roland Brandl, AuteurIt was hypothesized that the noisy environment along rivers calls for alternative ways of communication. In birds living near rivers, a long tail and wagging may serve as an optical communication system and thus may support vocal communication. [...]
