1 Nicolaus Copernicus University, Faculty of Biology and Veterinary Sciences, Department of Invertebrate Zoology and Parasitology, Lwowska 1, 87-100, Toruń, Poland. jermacz@umk.pl.
2 Nicolaus Copernicus University, Faculty of Biology and Veterinary Sciences, Department of Ecology and Biogeography, Lwowska 1, 87-100, Toruń, Poland. jermacz@umk.pl.
3 Nicolaus Copernicus University, Faculty of Biology and Veterinary Sciences, Department of Animal Physiology, Lwowska 1, 87-100, Toruń, Poland.
4 Nicolaus Copernicus University, Faculty of Biology and Veterinary Sciences, Department of Invertebrate Zoology and Parasitology, Lwowska 1, 87-100, Toruń, Poland.