1. Department of Biological, Geological and Environmental Sciences, University of Catania, Corso Italia 57, 95129 Catania, Italy
2. Archaeological and Landscape Park of Syracuse, Eloro, Villa del Tellaro and Akrai, Viale Teocrito 66, 96100 Syracuse, Italy
3. Greensol S.R.L., Viale Scala Graca 406/B, 96100 Syracuse, Italy
4. Independent Researcher, 97100 Ragusa, Italy