TABLE 5.

Comparison of standard ecological and molecular estimates of sequence diversity for hydrothermal spring microbial communities^a

Sample	No. of distinct sequences	No. of OTUs	Shannon-Weiner index	Coverage (%)
AS101-70	21	30	2.349	76
AS101-65	9	15	1.586	91
AS101-60	4	10	1.006	96
AS102-70	39	45	3.28	43
AS102-65	8	8	0.83	92
AS102-60	9	13	1.38	89
AS103 Fe	29	34	2.609	68
AS103 S	12	14	1.053	83
AS103 Fe-Sb	24	42	3.274	69
RM-70	18	24	2.146	80
RM-65	48	56	3.672	44
RM-60	14	21	3.445	85

^aAll of the AS103 samples were collected at 75°C. The total number of clones screened was 96 clones per sample site, for a total of 1,152.

^bFe-S, iron deposited on sulfur sediment.