FIGURE 4.

Proportion of sites from the six biogeographic regions (BGR; A) and the five land-use types (LUT; B) among the six bacterial community types (BCTs). BCT I to VI correspond to clusters based on Bray Curtis dissimilarities based on mean OTU abundances for each site and the Ward’s minimum variance method (Ward D2) mean OTU abundances per site. Clustering of BCT I to VI is shown at the bottom of the barplots. Asteriks at branchings denote significantly (Fisher exact test, adjusted p-value < 0.05) different composition of the BGRs, i.e., Jura Mountains (JM), Central Plateau (CP), Northern Alps (NA), Eastern Central Alps (EA), Western Central Alps (WA), and Southern Alps (SA), or of the LUTs, i.e., alpine grassland (AG), arable land (AL), forest (FO), meadow (ME), and settlement (SE).