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Documents disponibles écrits par cet auteur (4)
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Article
Miriam Teuscher, Auteur ; Roland Brandl, Auteur ; Sascha Roesner, Auteur ; Ludek Bufka, Auteur ; Tomas Lorenc, Auteur ; Bernhard Foerster, Auteur ; Torsten Hothorn, Auteur ; Joerg Mueller, AuteurThe Capercaillie Tetrao urogallus relies on structurally rich forests and therefore functions as an umbrella species for plants and animals associated with old-growth conifer forests. Populations in Central Europe are declining due to changes in[...]
Article
Sascha Roesner, Auteur ; Kirsten Bogatz, Auteur ; Hendrik Trapp, Auteur ; Thomas Gruenkorn, Auteur ; Roland Brandl, AuteurMany bird species adjust their offspring sex ratio as a response to environmental conditions or sexual dimorphism in size and dispersal. Offspring sex ratios may therefore vary among populations depending on the different demographic and ecologi[...]
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
Sascha Roesner, Auteur ; Dominic V. Cimiotti, Auteur ; Roland Brandl, AuteurRecently, based on genetic analysis, a distinct lineage of the Northern Raven has been described and assigned to the subspecies Corvus corax tingitanus on the Canary Islands. However, all sampled birds originated from only one island of the arch[...]
