TABLE 2.
Diversity analysis of the merA gene fragment librariesa
| Library | N | n | Sampling efficiency tests
|
||
|---|---|---|---|---|---|
| Chao1 | ACE | H′ | |||
| SId | 28 | 5 | 5.5 (5.0-13.2) | 6.7 (5.2-21.5) | 0.88 (0.47-1.28) |
| Sir | 30 | 6 | 7.3 (7.0-13) | 8.1 (7.3-11.5) | 1.41 (1.03-1.79) |
| LGd | 34 | 9 | 12 (9.4-32) | 13.4 (9.7-35.7) | 1.84 (1.56-2.12) |
| LGr | 16 | 1 | 1 (1-1.1) | ND | 0 (−0.087-0.087) |
a
N, number of clones sequenced; n, number of merA phylotypes observed; Chao1, Chao1 nonparametric richness estimate; ACE, abundance-based coverage estimator; H′, Shannon-Weaver diversity index. Numbers in parentheses represent 95% confidence intervals; ND, not determined.