Table 2.

Slopes and summary statistics associated with the distance–decay relationships (DDRs) based on environmental distance, geographical distance and three different similarity metrics (Bray–Curtis, Sørensen and Canberra). Slopes were derived from simple linear regression; p-values correspond with tests to determine whether DDR slopes from the active bacterial community (RNA) differed from the total bacterial community (DNA).

metric	DDR type	community	slope	% difference	p-value
Bray–Curtis	environmental	active	−0.326	25.2	0.001
		total	−0.253
	geographical	active	−0.182	31.8	0.015
		total	−0.132
Sørensen	environmental	active	−0.099	57.1	0.001
		total	−0.055
	geographical	active	−0.052	47.6	0.002
		total	−0.032
Canberra	environmental	active	−0.053	58.5	0.001
		total	−0.029
	geographical	active	−0.028	54.5	0.002
		total	−0.016