1. Department of Ecology; Faculty of Environmental Sciences; Czech University of Life Sciences; Prague 6-Suchdol Czech Republic
2. Department of Archaeology; Faculty of Arts; University of Hradec Králové; Hradec Králové Czech Republic
3. Faculty of Tropical AgriSciences; Czech University of Life Sciences; Prague 6-Suchdol Czech Republic
4. Department of Natural Resources; Faculty of Environmental Sciences; Agricultural University of Iceland; Borgarnes Iceland