Table 2.

Moran’s I (ranging from -1 ≤ to ≤  + 1) to evaluate spatial autocorrelation (i.e. how similar objects are to others surrounding it) between urban influencing factors and lichen-derived CNS contents (wt%) and stable-isotope-ratio signatures (δ¹³C, δ¹⁵N and δ³⁴S); significant values are presented in bold (significance level is indicated by asterisk: *significant at the level p < 0.05); MR = distance to major road, RdCl = road class, TC = traffic counts, BH = surrounding building height, GS = distance to greenspace

	MR	RdCl	TC	BH	GS
X. parietina
wt% C	0.07	-0.07	-0.09*	-0.08*	-0.10*
wt% N	-0.12*	0.08	0.09*	0.22*	0.15*
wt% S	-0.07	0.05	0.10*	0.22*	0.10*
δ13C	0.09	-0.06	-0.13*	-0.17*	-0.16*
δ15N	-0.11*	0.09*	0.19*	0.18*	0.18*
δ34S	0.09	-0.05	-0.11*	-0.20*	-0.68
Physcia spp.
C wt%	0.06	-0.35	-0.02	-0.02	-0.02
N wt%	-0.10*	0.05	0.17*	0.14*	0.16*
S wt%	-0.10*	0.05	0.17*	0.16*	0.16*
δ13C	0.04	0.04	-0.10*	-0.16*	-0.13*
δ15N	-0.11*	0.07	0.20*	0.06	0.22*
δ34S	0.13*	-0.08	-0.17*	-0.23*	-0.08