Authors

Institute for Environmental Protection and Research, and Chair IUCN Invasive Species Specialist Group, Italy, Rome, Italy

Department of Earth and Environmental Sciences, University of Milano-Bicocca, Milano, Italy

Section of Zoology-Marine Biology, National and Kapodistrian University of Athens, Zografou, Greece

Zoological Museum of the University of Athens, Zografou, Greece

Forest Research Institute, Sofia, Bulgaria

Forest Research Institute, Sofia, Bulgaria

European Commission, Joint Research Centre - Institute for Environment and Sustainability (IES), Water Resources Unit , Ispra, Italy

Joint Research Centre, Ispra, Italy

University of Maryland, Solomons, United States of America