Table 2. Richness estimates for each body site.
| V1–V3 | V3–V5 | |
| Saliva | 6,546 (5789–7453.1) | 6,801 (5421–8718.9) |
| Supragingival plaque | 11,154 (9028–14059.4) | 8,254 (7280–9420.8) |
| Subgingival plaque | 14,410 (12800–16301.3) | 11,501 (8533–15930.1) |
| Keratinized gingiva | 4,387 (3639–5375.7) | 3,352 (2509–4674.4) |
| Tongue dorsum | 7,910 (7080–8895.2) | 7,947 (6663–9613.9) |
| Hard palate | 3,793 (3262–4473.6) | 3,125 (2642–3766.9) |
| Buccal mucosa | 6,635 (4470–10402.8) | 4,650 (3212–7075.7) |
| Palatine Tonsils | 10,023 (8647–11724.5) | 9,020 (7751–10590.8) |
| Throat | 5,601 (4948–6396.8) | 4,154 (3633–4806.4) |
| Anterior nares | 2,693 (2412–3059.9) | 2,264 (1997–2611.8) |
| Stool | 23,665 (21299–26411.4) | 33,627 (31147–36391.1) |
| Left Antecubital fossa | 2,589 (2266–3047.7) | 2,091 (1906–2331) |
| Right Antecubital fossa | 3,632 (2998–4612.2) | 1,933 (1778–2135.6) |
| Left Retroauricular crease | 2,363 (2040–2816.9) | 1,933 (1761–2150.7) |
| Right Retroauricular crease | 2,278 (2000–2656.3) | 2,785 (2520–3109.5) |
| Mid-vagina | 1,653 (1029–3150.1) | 2,379 (1622–3748.7) |
| Posterior fornix | 1,151 (872–1594.4) | 1,466 (1228–1786.6) |
| Vaginal introitus | 1,722 (1293–2446.3) | 2,062 (1646–2687.3) |
Estimated number of species for each body site using both the V1–V3 and the V3–V5 tags computed with CatchAll. Numbers in parentheses are upper and lower confidence limits. The stool samples have the highest estimate of total richness, followed by the oral sites, particularly the plaque and tonsils. The skin and the vaginal sites have the lowest estimated richness.