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Mateusz Płóciennik
Department of Invertebrate Zoology and Hydrobiology, Faculty of Biology and Environmental Protection, University of Łódź, 12/16 Banacha Str., 90-237 Łódź, Poland
Andrzej Kruk
Department of Ecology and Vertebrate Zoology, Faculty of Biology and Environmental Protection, University of Łódź, 12/16 Banacha Str., 90-237 Łódź, Poland
Danuta J. Michczyńska
GADAM Centre of Excellence, Institute of Physics – CSE, Silesian University of Technology, Konarskiego 22B, 44-100 Gliwice, Poland
John B. Birks
Department of Biology, University of Bergen, PO Box 7803, N-5020 Bergen, Norway; and Environmental Change Research Centre, University College London, London, WC1E 6BT, UK