Morphotype I and II frequencies against metric variables and proportion ratios. A Plot of mean differences from overall mean values in metric and proportion metric ratio variables and morphotype II frequencies in site cluster B (red: Dzeravá, Býčí, Barová) and all the other community samples (blue). B Corresponding plot of mean differences from overall mean values in morphotype I and II frequencies and proportion metric ratio variables. Centroids indicated by hollow circles.