Table 1 Leaf and wood functional traits are influenced by climatic and soil conditions.

	SLA (mm² g⁻¹)	δ¹³C (‰)	Leaf N (%)	CCI	Stomatal Dens (mm⁻²)	Vessel Diam (µm)	Vessel Dens (mm⁻²)	Vessel length (µm)
Bioclimatic variables
Mean diurnal range (max. temp.—min. temp)	0.156	0.017	0.212	−0.191	0.150	0.083	0.008	−0.139
Precipitation of driest quarter	−0.206	−0.187	0.000	0.120	0.271	−0.006	−0.174	0.485***
Precipitation coefficient of variation	0.201	−0.029	−0.107	−0.140	−0.063	0.049	0.078	−0.451**
Annual precipitation	−0.300**	−0.369**	−0.319**	−0.028	0.306	0.105	0.146	0.255
Precipitation of driest month	−0.152	−0.211	0.057	0.111	0.261	0.004	−0.209	0.523***
Precipitation of wettest month	−0.286	−0.220	−0.582****	−0.229	0.113	0.011	0.155	−0.135
Soil variables
Calcium (mmol dm⁻³)	−0.129	0.364*	−0.136	−0.232	−0.233	0.371*	−0.129	0.204
Magnesium (mmol dm⁻³)	−0.302*	0.239	0.001	−0.027	0.021	0.304*	0.282	0.273
Carbon (%)	0.252	−0.226	−0.247	−0.469***	−0.492**	0.554****	0.099	0.210
Base saturation (%)	−0.287	0.385**	0.063	−0.127	0.001	0.193	0.084	0.208
Cation exchange capacity (mmol dm⁻³)	0.197	−0.107	−0.319*	−0.295***	−0.490*	0.229	0.158	0.062
Clay content (%)	−0.201	−0.232	0.137	0.095	0.026	0.611****	0.065	0.373**

Linear correlation among phylogenetically independent contrasts of leaf and wood functional traits and their respective bioclimatic and soil variables. Functional traits were measured in 24 geographically widespread populations. Bioclimatic values were extracted from the Worldclim dataset and soil features were obtained from chemical analysis. Significant correlations bolded (* P < 0.05; ** P < 0.01; *** P < 0.001; **** P < 0.0001).
SLA specific leaf area, δ¹³C carbon stable isotopes, N nitrogen, CCI chlorophyll content index, Dens. density, Diam. diameter.

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