1. Forest Research Institute, Hellenic Agricultural Organization Demeter, Vassilika, Thessaloniki GR-57006, Greece
2. Aquatic Systems Biology, Technical University of Munich, Mühlenweg 22, Freising D-85354, Germany
3. Laboratory of Biogeography and Ecology, Department of Geography, University of the Aegean, Mytilene GR-81100, Greece
4. Natural History Museum of Crete, School of Sciences and Engineering, University of Crete, Knosos Avenue, Irakleio GR-71409, Greece
5. Department of Biology, School of Sciences and Engineering, University of Crete, Vassilika Vouton, Irakleio GR-71110, Greece