Table 2.

Selected models for the intraspecific trait variation at the scale of individual saplings (linear mixed models on log-transformed trait values performed on 415 individuals of 26 species).

Trait	Random part	R2 C	R2 M	H/HMax		Forest type		Crown illumination index		Interaction H/Hmax * forest type
				Coef.	P	Coef.	P	Coef.	P	Coef.	P
Leaf thickness	I	0.71	0.12	0.52	<0.001	−0.08	<0.001	0.08	<0.001	—	—
Petiole length	I+S	0.96	<0.01	0.02	0.972	−0.05	0.128	0.07	0.008	—	—
LA	I+S	0.88	<0.01	−0.05	0.942	0.02	0.868	0.07	0.062	1.01	0.090
SLA	I+S	0.80	0.18	−0.93	0.031	0.17	<0.001	−0.15	<0.001	—	—
LDMC	I+S	0.86	0.08	0.38	0.177	−0.08	<0.001	0.06	<0.001	—	—
Leaf density	I+S	0.80	0.09	0.43	0.161	−0.09	<0.001	0.07	<0.001	—	—
LPC	I+S	0.50	0.04	0.68	0.152	−0.16	<0.001	−0.06	0.035	—	—
LCC	I+S	0.82	0.05	0.14	0.002	0.01	0.124	0.01	<0.001	−0.07	0.027
LNC	I	0.83	0.04	—	—	0.09	<0.001	−0.03	0.029	—	—
C/N	I	0.83	0.04	—	—	−0.10	<0.001	0.03	0.004	—	—
N/P	I	0.46	0.09	—	—	0.24	<0.001	—	—	—	—

The structure of the random part of the model is indicated by “I” for random intercept only and “I + S” for random intercept and slope of H/Hmax. R ² _C is the conditional R ², i.e. the variance explained by the whole model. R ² _M is the marginal R ², i.e. the variance explained by the fixed factors only⁵⁴. Significant relationships (P < 0.05) are highlighted in bold.