Fig. 2
Graphical summary of STRUCTURE groups, observed private allelic richness and fixation index (FST; details in Fig. S7) of nine populations of Achillea clusiana (upper panel) and Campanula pulla (lower panel) in the Northeastern Calcareous Alps. Ancestry proportions are displayed for the best k per species. Mountains are displayed as they occur geographically from West to East. For each species, values for private allelic richness are given per mountain and elevational level (on top of the barplots for the elevational levels), per mountain (treating the upper, middle and lower elevational levels within mountains as only one population; below barplots for mountains), and per elevational level (treating the corresponding elevational levels in each of the three mountains as only one population; to the right of the barplots for elevational levels). Details see text