NMDS results for the sampling sites. Community resemblance between Spain (native range) and Chile (invaded range) was studied through non-metric Multidimensional Scaling (nMDS), based on the Bray-Curtis dissimilarity matrix with the abundance data. The graphic representation for the 30 sites surveyed considers: a all the species and b the pool of alien species. Sites in the native range are represented with blue dots, while sites in the invaded range are in orange. A polygon has been outlined connecting the sites of each country to improve the visualisation.