Category: Passeriformes

Die aktuelle Situation des SeggenrohrsangersAcrocephalus paludicola in Deutschland

Aquatic Warbler (Acrocephalus paludicola) Science Article 12 abstract During the 20th century the Aquatic Warbler lost nearly all its breeding sites in Germanydue to drainage of fen mires, land reclamation and intensified agriculture. ANGELA HELMECKE et al, Ber. Vogelschutz 40 (2003): 81-89 Download article download full text (pdf)

Notes on the Hoary Redpoll on its central Canadian Arctic breeding grounds

Arctic Redpoll (Carduelis hornemanni) Science Article 1 abstract G. Ron Austing and I made the following observations of the Hoary Redpoll (Acanthis hornemanni) during the period of 30 June to 15 July 1972 while photographing birds around Bathurst Inlet Lodge at the mouth of the Burnside River on Bathurst Inlet (66′ 50′ N., 108′ 02′ […]

Taxonomy and evolution in Redpolls Carduelis flammea hornemanni a multivariate study of their biometry.

Arctic Redpoll (Carduelis hornemanni) Science Article 2 abstract Multivariate analyses were performed on four standard measurements (wing-chord, tail-length, bill-length and bill-depth) of over 1000 sexed Redpolls, including samples from all currently recognized taxa. Samples of flammea and exilipes, phenotypically defined by colour were separable biometrically, as were samples of rostrata and hornemanni. Dark Redpolls from […]

AN INTRODUCTION TO AQUATIC WARBLER CONSERVATIONIN WESTERN POMERANIA

Aquatic Warbler (Acrocephalus paludicola) Science Article 13 abstract The Aquatic Warbler (Acrocephalus paludicola) is a globallythreatened bird species. Around 1900, it was one of the most widespread birdsin Central-European fen mires. The population severely decreased as aconsequence of wetland drainage. Franziska Tanneberger et al, Institute of Botany and Landscape Ecology, University of Greifswald Download article […]

Factors affecting fluctuations of the Aquatic Warbler Acrocephaluspaludicola population of Byelarussian mires

Aquatic Warbler (Acrocephalus paludicola) Science Article 6 abstract Data on the density of Aquatic Warbler and plant associations in the marshes of the Sporovskiy reserve(Byelarus’) were collected between 1996 and 2003. The species density changed between years from 135 to even 0males per km

Monitoring Aquatic Warbler Acrocephaluspaludicola in Poland

Aquatic Warbler (Acrocephalus paludicola) Science Article 1 abstract As a globally threatened species, the Aquatic Warbler requires a monitoring programme forpopulation trends to be tracked. Such a programme should consider the timing of censuses toachieve precise assessments of the number of the singing males within the limited singing period.We compare results of whole-population counts conducted […]