Affiliation: | 1. Department of Vertebrate Zoology, Biological Faculty, Moscow State University, 119991, 1 Vorobiovy gory, Moscow, Russia;2. Department of Ecology and Evolutionary Biology, Cornell University, 14850, Corson Hall, Ithaca, NY, USA;3. A. N. Severtsov Institute of Ecology and Evolution, Russian Academy of Science, Bird Ringing Centre, 117312 Moscow, Russia;4. Faculty of Geography and Ecology, Kazan State University, Russia, 18 Kremlevskaja st., 420008 Kazan, Russia;5. Landscape Ecology Group, Institute of Biology and Environmental Sciences, University of Oldenburg, 26111 Oldenburg, Germany;6. Arctic Centre, University of Groningen, PO Box 716, 9700 AS Groningen, the Netherlands |