TABLE 3.

Comparison of structure diversities of sequenced clones in library 1 and library 2^a

Sample source	No. of sequences	No. of OTUs	Shannon index	Diversityb	Richnessc	Coverage (%)d
Library 1	478	22	0.9 (0.8-1.1)	0.42	23 (20-41)	100
Library 2	471	27	1.5 (1.4-1.7)	0.84	32 (25-68)	96.2

^aEstimates of Shannon index, diversity, and richness are all based on 3% differences in nucleic acid sequence alignments. Values in parentheses are 95% confidence intervals as calculated by the Mothur program. The Ochiai index (for similarity between two communities) was 0.74. The Bray-Curtis index (for similarity between the structures of two communities) was 0.77.

^bSample size-independent estimate of diversity based on negative natural log transformation of Simpson index values as calculated by the Mothur program.

^cChao1 values, a nonparametric estimate of species richness.

^dCoverage values for a distance of 0.01, as calculated by the Mothur program.