Table 4. Results for linking functional diversity with light capture.

Metric	R2	ΔAIC	Akaike weight	Slope	P-value
Strt	0.260	0	0.921	−0.082	<<0.001
FGRtrt	0.263	4.98	0.076	−0.069	<<0.001
FDcv.joint.abun	0.242	13.83	0.001	−0.052	<<0.001
FDjoint.abun	0.241	13.89	0.001	−0.052	<<0.001
FDcv	0.234	16.14	<0.001	−0.048	<<0.001
FD	0.234	16.91	<0.001	−0.046	<0.001
S	0.222	21.14	<0.001	−0.038	0.002
FDis	0.284	24.23	<0.001	−0.022	0.018
Q	0.289	24.58	<0.001	−0.022	0.023
Qcv	0.289	24.58	<0.001	−0.022	0.023
Hull	0.235	25.19	<0.001	−0.020	0.047
Hull cv	0.235	25.19	<0.001	−0.020	0.047
FGR	0.239	25.92	<0.001	−0.020	0.082
FDcv.abun	0.215	26.98	<0.001	0.011	0.164
FDabun	0.218	27.11	<0.001	0.011	0.182
FDiv	0.228	27.92	<0.001	0.008	0.333
Hullabun	0.246	28.59	<0.001	−0.002	0.784
Hullcv.abun	0.246	28.59	<0.001	−0.002	0.784
FEve	0.245	28.62	<0.001	−0.004	0.589

Summary of linear mixed-effects models for diversity metrics on light incident on the soil surface in the BioCON experiment. R² are shown for observed versus predicted values. Comparisons are based on Akaike weights, with larger weights indicating greater relative strength of evidence for that predictor. Slopes are standardized and associated P-values are for significance of diversity metrics on light not captured by the canopy.