Fig. 3.

Estimated sample richness (alpha diversity) by sample groups. Group (LB + NLB; n = 84) was compared to the NLB outlier (n = 1). The observed microbial richness (Observed) and Shannon diversity index (Shannon) of the outlier sample compared to LB + NLB group is significantly different (p value = 0.015). Both sequencing runs were considered as separate samples so that each sample has two reported values. The color of the dots indicates the sequencing run, while black dots indicate the sample replicate was an outlier