Table 1.

Results of general linear mixed model (GLMM) analyses on the absolute abundances (OTUs) of total selected microbes (archaea + bacteria) for selected microbial taxa showing the main and two- and three- factor interactive effects of soil (S), water level (W), nutrient addition (F = Fert), and plants (P).

(A) Archaea families (abundance)
	Soil	Water	Fert	Plants	S*W	S*F	S*P	W*F	W*P	F*P	SWF	SWP	SFP	WFP
SAGMA X	P>M ***	L>H ***			***				**		*
Nitrososphaeraceae	M>P ***	L>H ***					**		**
Methanobacteriaceae	M>P ***			UV>V **							*	**
Methanocellaceae				UV>V***			**			*	**	**
Methanoregulaceae	M>P ***	H>L**		UV>V***			**		*
Methanosaetaceae	M>P ***	H>L**		UV>V***			***					**
Methanosarcinaceae		H>L**		UV>V**		*				*	*
Methanomassilii-coccaceae	M>P ***	H>L***	UF>F***	UV>V***		*		**	**	**	**			**
(B) Selected bacteria phyla / Proteobacteria classes (abundance)
Acidobacteria	P>M***	L>H***		V>UV***	***				***	*
Actinobacteria		L>H***		V>UV***	**	+	***		***	**
Bacteroidetes	M>P***			UV>V**	***					+
Chlorobi	P>M***			UV>V***			*		*
Chloroflexi	M>P***	L>H***		UV>V**			**		*
Cyanobacteria	M>P**				***		*		*
Firmicutes	M>P***			V>UV+			*		**
Gemmatimonadetes	M>P***	L>H***		V>UV***		+			***
Planctomycetes		L>H***	UF>F*		**		***		*
Alphaproteobacteria	P>M***	L>H***		V>UV***	**		*		***
Betaproteobacteria	P>M***	L>H***		V>UV***					***			+
Deltaproteobacteria	M>P***	L>H***		V>UV**					**			*
Gammaproteobacteria	M>P***	L>H***		UV>V*	***		**		+
Verrucomicrobia		L>H***		V>UV**			**		**
(C) Functional g (abundance and proportion of total selected microbes)
Methanogens	M>P	H>L		UV>V
Abundance	***	**		***			**		***		*	**
Proportion	***	***		***			*				**
Methanotrophs	M>P	H>L		UV>V
Abundance	***	***		*	*		**		*			**
Proportion	***	***		***
OM Degraders	P>M	L>H		V>UV
Abundance	***	***		***	***		*		***	+
Proportion	***	***		***	***				+
Diazotrophs	M>P	L>H		V>UV
Abundance	***	***		*	***		*		***
Proportion					***
Nitrifiers	M>P	L>H	F>UF	UV>V
Abundance	***	***	**	*	***	*	***	***	***		*	**		*
Proportion	***	***			***	*	***	**	**		*
FRB	M>P	H>L		UV>V
Abundance	***	***		+			**		*		*
Proportion				*
(D) r/k strategists (abundance)
r/k					k>r**				k>r*

(A) archaea families; (B) bacteria phyla, including selected Proteobacteria classes; (C) functional groups (absolute abundance and proportion of total selected microbes); (D) r/k strategists. Factors: Soil (P = peat; M = mineral); Water (L = low (15 cm below soil surface); H = high (saturated, water level maintained at the soil surface); Nutrients (Fert) (UF = unfertilized (0 kg NPK ha⁻¹ yr⁻¹); F = fertilized (300 kg NPK ha⁻¹ yr⁻¹); plants (UV = un-vegetated; V = vegetated). P values: * = < 0.05; ** < 0.01; *** < 0.001; + < 0.10.