Table 1.

Final models for cavity nesting bee species richness and abundance following backward elimination of the explanatory variables with a P‐value <0.10 (Table S5, Supporting information). The model for bee species richness was fitted using GLMs with Poisson distributed errors, while the influence of explanatory variables on bee abundance was modelled using negative binomial regressions to account for overdispersion. Large wood boring beetles excavate cavities with diameters ≥3 mm suitable for cavity nesting bees. Nagelkerke R ² values are shown

	df	β	SE	z value	R 2	P‐value
Cavity nesting bee species richness
Intercept	25	0.417	0.206	2.03		0.043
Large wood boring beetles abundance		0.015	0.004	3.65	0.54	<0.001
Cavity nesting bee abundance
Intercept	25	0.658	0.216	3.04		0.002
Large wood boring beetles abundance		0.027	0.005	5.73	0.80	<0.001