1. University Center of International Programmes of Studies, International Hellenic University, 57001 Thessaloniki, Greece
2. Soil and Water Resources Institute, Hellenic Agricultural Organization—Dimitra, 57001 Thessaloniki, Greece
3. Department of Zoology, School of Biology, Aristotle University of Thessaloniki (AUTH), 54124 Thessaloniki, Greece
4. Department of Ecology, School of Biology, Aristotle University of Thessaloniki (AUTH), 54124 Thessaloniki, Greece