Box plot comparisons of bacterial diversity, bacterial community membership, and bacterial community structure for the 21 cross-sectional samples (A, B, and C, respectively).

<p>Richness was calculated with a uniform re-sample size of 1901 sequences following 1000 iterations. Community membership and structure were calculated using the Sørensen (presence/absence) and Bray-Curtis (quantitative) indices of similarity, respectively. The top and bottom boundaries of each box plot indicate the 75^th and 25^th quartile values, respectively, and lines within each box represent the 50^th quartile (media) values. Ends of whiskers represent interquartile range and open circles mark the lowest and highest values in each instance.