Table 3.

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

metric	DDR type	community	intercept	% difference	p-value
Bray–Curtis	environmental	active	0.434	0.69	0.332
		total	0.437
	geographical	active	0.422	0.94	0.343
		total	0.426
Sørensen	environmental	active	0.319	21.5	0.001
		total	0.257
	geographical	active	0.314	20.7	0.001
		total	0.255
Canberra	environmental	active	0.106	26.7	0.001
		total	0.081
	geographical	active	0.103	25.1	0.001
		total	0.080