a Map of the study area (reference system WGS84 UTM 33 N, EPSG: 32633) showing the distribution of the invaded dune systems b schematic profile of coastal dune zonation with the acronym of the mapped natural coastal classes: SEA – sea water, BPV – beach with pioneer vegetation, HDV – herbaceous dune vegetation, SWV – Shrub woody vegetation, FWV – forest woody vegetation.