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Documents disponibles écrits par cet auteur (12)
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Article
Norbert Teufelbauer, Auteur ; Christian H. Schulze, Auteur ; Erwin Nemeth, AuteurOver time, the total number of bird species and individuals recorded on bird surveys decreased for older observers, whereas they increased for young observers. We hypothesized that observer age and sex influence long-term bird survey results, wi[...]Nouveauté
Article
Barbara Kofler, Auteur ; Wolfgang Wanek, Auteur ; Christian C. Voigt, Auteur ; Christian H. Schulze, AuteurMigrating species and populations are affected by conditions existing across large geographical scales. The degree to which populations mix at stop-over sites and wintering grounds is variable and can involve important fitness consequences. Thus[...]
Article
Nikolaus Filek, Auteur ; Arno Cimadom, Auteur ; Christian H. Schulze, Auteur ; Heinke Jäger, Auteur ; Sabine Tebbich, AuteurIn recent decades, arboreal Darwin’s Finches have suffered from a dramatic population decline, which has been attributed to parasitism by the invasive botfly Philornis downsi. However, changes to their primary habitat caused by invasive plant sp[...]
Article
Rainer Raab, Auteur ; Claudia Schtz, Auteur ; Peter Spakovszky, Auteur ; Eike Julius, Auteur ; Christian H. Schulze, AuteurWinter oilseed rape represents an important food source for Great Bustards. Great Bustard surveys during four consecutive winters (2005/2006-2008/2009) were used to identify characteristics of oilseed rape fields, which increase their attractive[...]
Article
Stefanie Riemer, Auteur ; Christian H. Schulze, Auteur ; Georg Frank, AuteurPopulation densities and habitat use of the Green Woodpecker Picus viridis were studied in a 1,170 ha study area in the Donau-Auen National Park (Lower Austria). Territory mapping (three visits) between February and April 2008 yielded a minimum [...]
Article
Effects of power lines on flight behaviour of the West-Pannonian Great Bustard Otis tarda population
Rainer Raab, Auteur ; Peter Spakovszky, Auteur ; Eike Julius, Auteur ; Claudia Schuetz, Auteur ; Christian H. Schulze, AuteurFlight directions of Great Bustards Otis tarda after take-off were used to analyse effects of power lines on spatial movements of this highly endangered bird species. Data on flight directions came from Great Bustard observations conducted in ea[...]
Article
Benjamin S. Seaman, Auteur ; Christian H. Schulze, AuteurRivers and streams lined by narrow forest strips are common in the lowland countryside of south-western Costa Rica. We studied the importance of these gallery forests for understorey birds, especially forest species. Using mist-nets, we captured[...]
Article
Claudia Schuetz, Auteur ; Christian H. Schulze, AuteurRelating eye size differences in birds to aspects of ecology and life history features offers interesting views on selective forces shaping eye size. However, data on eye size is hardly available. We compare two non-invasive methods for measurin[...]
Article
Claudia Schuetz, Auteur ; Christian H. Schulze, AuteurThis study tested for effects of flock size and other potentially important variables (location, vegetation cover, wind force, cloud cover, date, time of day, feeding habitat, number of other waders and peck rate) on the vigilance level of forag[...]
Article
Bea Maas, Auteur ; Dadang Dwi Putra, Auteur ; Matthias Waltert, Auteur ; Yann Clough, Auteur ; Teja Tscharntke, Auteur ; Christian H. Schulze, AuteurStudies on temporal changes of tropical bird communities in response to habitat modification are rare. We quantified changes in bird assemblages at the rainforest margin of Lore Lindu National Park, Central Sulawesi, over an interval of 6 years.[...]
Article
Yoko Muraoka, Auteur ; Christian H. Schulze, Auteur ; Mihaela Pavlicev, Auteur ; Gábor Wichmann, AuteurDue to being a virtually monomorphic wader species, migration dynamics and sex-related migration patterns in the Wood Sandpiper (Tringa glareola) have rarely been investigated. We captured spring migrants at an important stopover site in northea[...]
Article
Rainer Raab, Auteur ; Claudia Schuetz, Auteur ; Peter Spakovszky, Auteur ; Eike Julius, Auteur ; Christian H. Schulze, AuteurCollisions with power lines represent an important mortality factor for Great Bustards Otis tarda throughout the distribution range of the species. This study evaluates the success of two conservation measures implemented in the West-Pannonian d[...]
