Mean values of morphological traits of Campanula thyrsoides per phylogeographic region and treatment (control versus clipped plants) measured in the common garden.

Means (SE) of regions are based on population means, which in turn are based on seed family means. Different superscript letters indicate significant differences (α = 5%) among regions using Tukey's HSD tests and between treatments based on significance of the treatment factor in the generalized linear mixed-effect models (Table 1). WA – Western Alps; CSA – Central Swiss Alps; CAA – Central Austrian Alps; SEA – South-eastern Alps.