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Frédéric Jiguet, Auteur ; Raphaël Arlettaz, Auteur ; Hans-Guenther Bauer, Auteur ; Viktor Belik, Auteur ; José Luis Copete, Auteur ; Laurent Couzi, Auteur ; Michel Alexandre Czajkowski, Auteur ; Svein Dale, Auteur ; Valery Dombrovski, Auteur ; Jaanus Elts, Auteur ; Yves Ferrand, Auteur ; Regis Hargues, Auteur ; Guy M. Kirwan, Auteur ; Simonas Minkevicius, Auteur ; Markus Piha, Auteur ; Gunnar Selstam, Auteur ; Michal Skierczynski, Auteur ; Jean-Philippe Siblet, Auteur ; Aleksandr Sokolov, AuteurFollowing recent updates proposed by BirdLife International and further updates across Europe gathered in the context of a continent-wide study of the migration strategy of the species, we propose here an update of national population sizes and [...]
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Hans-Guenther Bauer, Auteur ; Friederike Woog, Auteur
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Arno Reinhardt, Auteur ; Hans-Guenther Bauer, AuteurDuring the breeding season of 2003, vegetation parameters of 29 occupied territories and of 13 abandoned territories of the Wood Warbler (Phylloscopus sibilatrix) were recorded and the breeding success of 10 pairs was monitored. In ten territori[...]
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Hans-Guenther Bauer, Auteur ; Friederike Woog, AuteurThis is the first report of the German Neozoa Working Group (PG Neozoen der DO-G), on the Occurrence, status, population size and population trend of all introduced/naturalized species recorded in Germany (and adjacent Countries). Up to 2007, 34[...]
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David W. Gibbons, Auteur ; Paul F. Donald, Auteur ; Hans-Guenther Bauer, Auteur ; Lorenzo Fornasari, Auteur ; Ian K. Dawson, AuteurCapsule An increasing proportion of atlases now map patterns of abundance but they are still a minority even though they require no more input of time or fieldworkers. Aims To examine quantitatively the evolution of bird atlas methods, from thei[...]
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Hans-Guenther Bauer, Auteur ; Nicole Lemoine, Auteur ; Markus Peintinger, AuteurIn Central Europe, massive losses in species richness of breeding birds have been documented in the last decades, but the question arises whether species richness is currently still decreasing or again increasing due to conservation efforts. In [...]
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Alwin Schoenenberger, Auteur ; Hans-Guenther Bauer, AuteurSince 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[...]
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Alwin Schoenenberger, Auteur ; Hans-Guenther Bauer, AuteurSince 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[...]
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Hans-Guenther Bauer, Auteur ; Markus Peintinger, Auteur ; Georg Heine, Auteur ; Ulrich Zeidler, Auteur,Population trends in breeding birds at Lake Constance (SW-Germany/Switzerland/Austria; 1120-km(2)) are examined using line-transect data of 303 tetragons from three census periods (1980-1981, 1990-1992, and 2000-2002). In total, 159 breeding sp[...]
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Hans-Guenther Bauer, Auteur ; Markus Peintinger, Auteur ; Georg Heine, Auteur ; Ulrich Zeidler, Auteur,Population trends in breeding birds at Lake Constance (SW-Germany/Switzerland/Austria; 1120-km(2)) are examined using line-transect data of 303 tetragons from three census periods (1980-1981, 1990-1992, and 2000-2002). In total, 159 breeding sp[...]
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Barbara Engler, Auteur ; Hans-Guenther Bauer, AuteurThe House sparrow, once the "Jack of all trades" in our avifauna, shows drastic declines all over Germany, which led to its categorization in the 'near-threatened' category of the recent German Red List (2002) and to its announcement as 'Bird of[...]
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Andrea Gehrold, Auteur ; Hans-Guenther Bauer, Auteur ; Wolfgang Fiedler, Auteur ; Martin Wikelski, AuteurThe annual migration cycle of waterbirds often involves several distinct movement stages, for example within-winter movements or the moult migration during summer, which require a high degree of individual flexibility in migration direction. Her[...]
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Franz Bairlein, Auteur ; Hans-Guenther Bauer, Auteur ; Harald Dorsch, AuteurIn 1999 the three German research centres for ornithology initiated a new Integrated Monitoring of Songbirds project (IMS) for their ringing groups. In the first year, 26 teams collected data on constant effort sites in different regions of the [...]
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Hans-Guenther Bauer, Auteur ; Klaus Nottmeyer-Linden, AuteurAfter years of discussions, the German association of field ornithologists DDA decided to initiate a new German breeding bird atlas using similar field techniques and data analyses as the Swiss Ornithological Institute in their recent atlas. Thi[...]
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Matthias Werner, Auteur ; Hans-Guenther Bauer, AuteurIn late summer 1998 the project "Atlas of migratory birds in Germany" was launched when three major energy suppliers decided to grant financial support for the development of a preliminary concept. The atlas will comprehensively cover all aspect[...]
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Hermann Hoetker, Auteur ; Hans-Guenther Bauer, Auteur ; Martin Flade, Auteur ; Alexander Mitschke, Auteur ; Christoph Sudfeldt, Auteur ; Peter Suedbeck, AuteurThis overview of recent bird population developments in Germany is based on information presented in this and the two preceding VOGELWELT issues, the 2nd report on the state of birds in Germany (1st report see VOGELWELT 117: 165-365 (1996)), and[...]
