. 2013 Jul 31;4:215. doi: 10.3389/fmicb.2013.00215

Table 3.

Carbon dioxide and CH₄ flux potentials and OTU richness, evenness, and Simpson's diversity of microorganisms in peat from Rivière du Loup and Shippagan.

	Rivière du Loup				Shippagan
	NAT	MIN	ABD	RST	NAT	MIN	ABD	RST
Aerobic CO₂ production	0.26	0.05	0.05	0.23	0.21	0.09	0.03	0.46
	(0.00)^a	(0.01)^b	(0.00)^b	(0.03)^a	(0.02)^a	(0.01)^b	(0.01)^b	(0.10)^c
Bacterial richness	23	21	22	22	19	19	18	19
	(1)^a	(1)^a	(6)^a	(4)^a	(2)^a	(1)^a	(5)^a	(1)^a
Bacterial evenness	0.77	0.70	0.70	0.71	0.67	0.69	0.63	0.67
	(0.01)^a	(0.02)^a,b	(0.10)^a,b	(0.04)^a,b	(0.00)^a,b	(0.02)^a,b	(0.06)^b	(0.00)^a,b
Simpson's index	17.5	12.2	11.8	13.7	11.0	11.5	8.8	10.4
	(0.6)^a	(2.1)^a,b	(5.2)^a,b	(2.3)^a,b	(0.8)^b	(1.3)^b	(1.7)^b	(0.3)^b
Anaerobic CO₂ production	0.09	0.03	0.03	0.10	0.07	0.07	0.03	0.14
	(0.01)^a,b	(0.00)^a,c	(0.01)^a,c	(0.03)^a,b	(0.01)^a,c	(0.00)^a,c	(0.00)^c	(0.06)^b
CH₄ production	0.01	0.003	0.001	0.480	0.890	0.000	0.001	523
	(0.006)^a,b	(0.003)^a,b	(0.001)^a,b	(0.510)^a	(0.754)^a	(0.005)^b	(0.002)^a,b	(220)^c
Bacterial richness	13	15	15	9	7	1	11	10
	(2)^a,b	(2)^a	(3)^a	(1)^a,b	(3)^b	(1)^c	(4)^a,b	(4)^a,b
Bacterial evenness	0.54	0.54	0.58	0.42	0.28	0.04	0.50	0.44
	(0.03)^a	(0.04)^a	(0.02)^a	(0.07)^a,b	(0.12)^b	(0.06)^c	(0.06)^a	(0.13)^a,b
Simpson's index	5.9	4.8	6.2	3.5	2.0	1.1	5.0	3.7
	(0.9)^a	(0.8)^a	(0.3)^a	(1.1)^a	(0.7)^b,c	(0.2)^b,c	(1.1)^a	(1.5)^a,c
Archaeal richness	7	7	12	7	6	n.d.	6	6
	(1)^a	(1)^a	(3)^b	(2)^a	(2)^a	n.d.	(1)^a	(1)^a
Archaeal evenness	0.36	0.35	0.48	0.33	0.28	n.d.	0.27	0.33
	(0.05)^a,b	(0.03)^a,b	(0.02)^b	(0.03)^a,b	(0.11)^a	n.d.	(0.08)^a	(0.06)^a,b
Simpson's index	3.5	3.0	4.7	2.9	2.5	n.d.	2.4	3.0
	(1.0)^a,b	(0.4)^a,b	(0.1)^b	(0.4)^a,b	(1.3)^a	n.d.	(0.8)^a	(0.8)^a,b

Sites were natural (NAT), actively mined (MIN), mined and then abandoned (ABD), and restored trenches at block-cut mined sites that had new peat accumulation (RST). Fluxes are mg CO₂ g⁻¹ peat day⁻¹ and μ g CH₄ g⁻¹ peat day⁻¹. Operational taxonomic units were defined as unique T-RFs from T-RFLP analysis of bacterial and archaeal 16S rDNA amplified from peat incubated under oxic (bacterial) and anoxic (bacterial and archaeal) conditions. Standard deviations of 3 replicates are in parentheses, and different superscripted letters denote significant differences between sites at P < 0.05.