Fig. 3

Principal components analysis ordination of beta diversity based on Euclidean distances of robust centered log-ratio transformed data (A). Control, high, and low doses of each antibiotic were compared within each time point. Ellipses display 95% confidence intervals. Black dots and ellipses at time 0 represent all samples prior to the treatment. Beta dispersion, as distance-to-centroid, by antibiotic treatment group within a time point (B). Significance levels reflect fdr-adjusted p-values. Significance codes are as follows: 0 ‘***’, 0.001 ‘**’, and 0.01 ‘*’