Table 2.

Best spatial regression models of host variables predicting Epifagus virginiana genetic distances

Model (EV ∼)	Intercept	Coefficient	Z-value	ρ	AIC	ΔAIC	wAIC
F.gen	0.03307	−0.00301	0.214	0.960	−5347.7	12.7	0.00
F0.5	0.04669	−0.00109	0.000	0.945	−5360.4	0.0	0.59
F.age	0.03417	0.00061	0.002	0.949	−5355.9	4.5	0.06
F.avgP	0.03670	−0.00103	0.034	0.957	−5350.6	9.8	0.00
F.varP	0.03123	−0.00005	0.389	0.961	−5346.9	13.5	0.00
F.avgP +	0.04195	−0.00116	0.020	0.943	−5359.3	1.1	0.35
F.age		0.00065	0.001

Fagus grandifolia and E. virginiana variables are shown in Fig. 2. Coefficients and their corresponding Z-values refer to host data layer coefficients, whereas ρ is the spatial lag coefficient. All values of ρ were significant (P < 0.01). AIC, ΔAIC, and weighted (w)AIC values are reported following Wagenmakers and Farell (25). The best model is in boldface type.