Fig. 3

Alpha (A) and beta (B) diversity measures of the four scenarios: D0, D1, D2 and D3. Boxplot of Shannon’s Diversity Index (Kruskal–Wallis statistic: 7.935; p = 0.047) is depicted in panel (A). A PcoA of Bray–Curtis distance matrix (ANOSIM’s R: 0.12; p < 0.02) is shown in panel (B). Different color intensities in dots from scenarios D0 and D3 are used to indicate the different localities sampled within each scenario (Additional file 1: Figure S1 and Table S1 and S2)