Shannon diversity comparisons of 22 habitats. One thousand reads were rarefied from each sample. The boxplot shows the minimum, 25th percentile, median, 75th percentile, and the maximum of the data from bottom to top. Oral habitats in general have more even bacterial communities, and vaginal habitats have the lowest Shannon diversity.
Zhou et al. Genome Biology 2013 14:R1 doi:10.1186/gb-2013-14-1-r1