1. Institute of Agriculture and Tourism, Karla Huguesa 8, 52440 Poreč, Croatia
2. Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, 10000 Zagreb, Croatia
3. Department of Life and Environment Botanical Section, University of Cagliari, Viale S. Ignazio da Laconi 13, 09123 Cagliari, Italy
4. Public Health Institute of the Istrian Region, Nazorova 23, 52100 Pula, Croatia
5. Department of Zoology and Fisheries, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Praha 6, Suchdol, Czech Republic
6. Department of Life Sciences, University of Trieste, Via L. Giorgieri 10, 34127 Trieste, Italy