Table 2.

Sequencing information and diversity estimates for all bacteria and archaea.

BacteriaArchaea
Total number of V6 tag sequences* 689,720 216,627
Total unique V6 tag sequences 30,108 5,979
Total OTUs at 3% difference (phylotypes) 18,537 1,931
Chao1 estimator of richness at 3% difference (95% CI) 36,869 (36,108 to 37,663) 2,754 (2,594 to 2,952)
ACE estimator of richness at 3% difference (95% CI) 37,038 (36,613 to 37,473) 2,678 (2,616 to 2,745)
Bray-Curtis similarity index at 3% difference† 0.08 0.01
Jaccard similarity index at 3% difference† 0.12 0.08

  • ↵* Trimmed reads that passed quality control [as described in (11)].

  • ↵† Similarity between communities at sites FS312 and FS396 on a scale of 0 to 1 (where 1 represents identical communities).