Fuelling strategies differ among juvenile Sedge and Reed Warblers along the eastern European flyway during autumn migration
Katarzyna Stepniewska,
Agnieszka Ozarowska,
Przemyslaw Busse
et al.
Abstract:In this study, we investigated fattening strategies of juvenile Sedge and Reed Warblers during their autumn migration. We analysed fat scores of birds captured at five ringing sites situated between the southern Baltic Sea coast and Asia Minor. In Eastern Europe these two species had similarly low fat reserves. Their fat load increased in the Balkans. Remarkable differences between the species were noted in Asia Minor, where fat reserves of Sedge Warblers were more than two-fold higher compared to Reed Warbler… Show more
This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
The authors want to thank Sergei M. Smirenski and the staff of Muraviovka Park as well as all volunteers who participated in the bird ringing activities. An earlier version of this manuscript was improved by comments of Franz Bairlein and Dan Chamberlain and two anonymous reviewers. Our study was carried out in accordance to the legal and ethical requirements for animal research and welfare in the Russian Federation. Birds were captured and marked with permission from the Russian Bird Ringing Centre.
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