TABLE 2.

Summary of sequences appearing two or more times in the clone library used in this study^a

Division	Clones	No. of occurrences
Verrucomicrobium	S1a-11D, S2-7D, P3-1H, W1-3H, W2b-1E	5
Verrucomicrobium	S3-1B, S3-3D, S3-3G, W1-1D	4
Verrucomicrobium	P3-3D, P3-4F, W1-2G, W1-3G	4
β-Proteobacteria	S1a-4a, S1a-9C, S2-9C	3
Verrucomicrobium	S3-2H, S3-4H	2
Acidobacterium	P3-2D, P3-3B	2
Acidobacterium	P3-2C, P3-5A	2
Acidobacterium	P3-2A, P3-2E	2
Acidobacterium	P1-5F, W1-4E	2
Acidobacterium	W3-1C, W3-1D	2
α-Proteobacteria	S3-4F, S3-4H	2
β-Proteobacteria	P3-3G, P3-4A	2
BDb	S1a-2C, W3-2C	2
SPAMc	P1-5G, P2-10D	2

^aThe library contained 185 clones included in the analysis. Species richness and diversity statistics were calculated by using EstimateS software. ACE is the abundance-based coverage estimator (9, 10). Chaol is an abundance-based estimator of species richness (8) shown with the standard deviation in parentheses.

^bCandidate division BD/Gemmatimonas.

^cCandidate division SPAM.