TABLE 2.

Comparison of diversity indices in three deep-sea sediment core communities

Community	Diversity estimate
	No. of distinct sequences	No. of OTUsa		1/Db	Nucleotide diversity	θ (π)c
		ACE	Chao1
5-12 cm	53	616 (289, 3,379)	1,406 (307, 7,280)	51	0.11 ± 0.05	63.9 ± 31.0
15-18 cm	36	325 (114, 1,105)	308 (106, 1,103)	15	0.07 ± 0.04	42.1 ± 20.7
43-46 cm	30	226 (82, 765)	212 (75, 762)	4	0.05 ± 0.03	32.4 ± 15.9

^aThe values in parentheses are the 95% confidence intervals.

^bReciprocal of Simpson's index.

^cTotal genetic variation.