Data source: Centrai Databank of the ltalian flora and vegetation. Database: phanerogamic flora of Sicily; percents of species with similar distribution patterns, subdivided into 49 phytogeographical categories, in 23 elevation intervals of 100m each. Methods: Complete Linkage Clustering with Correlation Coefficient far the classification of categories and of elevation intervals; Concentration Analysis far the ordination. Results: species with similar distribution tend to be most frequent along given sections of the elevation gradient. The degree of correlation between phytogeographical categories and elevation has been quantified.
