Patterns of native and alien plant species occurrence on coastal dunes in Central Italy

摘要: Mediterranean coastal dunes are affected by high levels of human disturbance, particularly in the last years. Disturbance not only promotes a physical alteration that increases invasibility dunes, but also allows arrival new alien plant propagules. This study examined current distribution native and species growing on central Italy, considering origin, invasive status growth form strategies. The floristic sampling was carried out following European Cartographic Project protocol. Major trends wild were identified through Principal Coordinates Analysis (PCoA). High diversity found with consistent numbers clear differences between Tyrrhenian Adriatic coast. There negative relationship total number richness plot, probably related to disturbance. Results showed percentage flora plot. Finally, aliens appeared be either annual or perennial evergreen