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Article
Christian Heuck, Auteur ; Christof Herrmann, Auteur ; Dana G. Schabo, Auteur ; Roland Brandl, Auteur ; Jörg Albrecht, AuteurUnderstanding the mechanisms that shape density-dependent processes and population dynamics is often essential for species conservation. Two key mechanisms of density-dependent reductions in reproductive performance are a limited access to forag[...]
Article
Joerg Mueller, Auteur ; Roland Brandl, AuteurP>1. Effective biodiversity management can only be implemented if data are available on assemblage-environment relationships. The level of detail needs to be relevant to the scale of planning and decision making. A number of remote-sensing metho[...]
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
Jochen H. Bihn, Auteur ; Manfred Verhaagh, Auteur ; Martin Braendle, Auteur ; Roland Brandl, AuteurThe extent to which secondary forests occupying degraded and abandoned lands provide suitable habitat for forest-adapted species is an important conservation issue in times of vanishing old growth forests. We used ants (Hymenoptera: Formicidae),[...]
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Sebastian Seibold, Auteur ; Claus Baessler, Auteur ; Roland Brandl, Auteur ; Martin M. Gossner, Auteur ; Simon Thorn, Auteur ; Michael D. Ulyshen, Auteur ; Joerg Mueller, AuteurThe importance of dead wood for biodiversity is widely recognized but strategies for conservation exist only in some regions worldwide. Most strategies combine knowledge from observational and experimental studies but remain preliminary as many [...]
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[...]
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Joerg Mueller, Auteur ; Reed F. Noss, Auteur ; Heinz Bussler, Auteur ; Roland Brandl, AuteurIncreasing demands for firewood owing to rising energy costs have accelerated discussions about the amount of dead wood needed for conservation. A sharp increase in dead wood caused by bark beetles in a German national park provides lessons for [...]
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
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
Christian Heuck, Auteur ; Roland Brandl, Auteur ; Joerg Albrecht, Auteur ; Thomas K. Gottschalk, AuteurCentral Europe has the responsibility to protect the Red Kite Milvus milvus as it holds the majority (> 50 % of all breeding pairs) of the global population. This entails the need for comprehensive knowledge of the birds' ecology and distributio[...]
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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. [...]
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[...]
