Figure 2

Boxplots showing the median (horizontal line in the box), interquartile range (IQR, the box), minimum and maximum (lines below and above the box, respectively) of alpha diversity (top: Shannon (A), bottom: Inverse Simpson (B)) categorized by treatment. P-values for global Kruskal–Wallis comparisons between strain and treatment combinations are 0.02607 (Shannon) and 0.05222 (inverse Simpson).