Table 1.

Linear model parameters, including 95% confidence intervals and performance measures (adjusted R² and Mean Absolute Error, MAE) for gradients estimated with (S) and without (NS) snow.

		Taxonomic (N=100)			Functional
		Richness	Simpson	NMDS	Height (N=98)	SLA (N=95)	FD (N=67)	Chlorophyll (N=74)
GSL	Intercept estim.	10.933	0.760	0.507	−1.933	11.712	0.052	17.952
	Intercept lower	5.529	0.730	0.429	−4.373	10.169	0.040	4.562
	Intercept upper	16.337	0.791	0.585	0.507	13.255	0.065	31.342
	Slope estim.	0.288	0.001	−7.78 × 10−3	0.196	0.035	7.56 × 10−4	0.296
	Slope lower	0.208	0.001	−8.94 × 10−3	0.160	0.012	5.70 × 10−4	0.113
	Slope upper	0.368	0.002	−6.62 × 10−3	0.231	0.057	9.43 × 10−4	0.478
	MAE	6.673	0.035	0.096	2.804	1.784	0.012	11.008
	R2 (adj.)	0.334***	0.292***	0.641***	0.543***	0.080**	0.495***	0.114**
GSL (NS)	Intercept estim.	−128.947	−0.056	4.523	−84.062	−4.082	−0.335	−336.700
	Intercept lower	−178.584	−0.316	3.804	−110.305	−17.904	−0.467	−472.083
	Intercept upper	−79.311	0.205	5.243	−57.820	9.741	−0.202	−201.309
	Slope estim.	1.147	8.37 × 10−3	−0.042	0.871	0.166	4.0 × 10−3	3.410
	Slope lower	1.000	5.97 × 10−3	−0.048	0.630	0.039	2.79 × 10−3	2.181
	Slope upper	1.913	10.8 × 10−3	−0.035	1.112	0.293	5.22 × 10−3	4.640
	MAE	7.787	0.035	0.096	3.530	1.801	0.013	9.914
	R2 (adj.)	0.283***	0.324***	0.609***	0.342***	0.057*	0.390***	0.288***
Solar	Intercept estim.	13.549	0.771	0.438	−0.763	11.137	0.056	25.270
	Intercept lower	8.174	0.741	0.353	−3.164	9.731	0.044	12.040
	Intercept upper	18.924	0.800	0.523	1.639	12.543	0.068	38.500
	Slope estim.	3.88 × 10−5	2.03 × 10−7	−1.05 × 10−6	2.79 × 10−5	6.817 × 10−6	1.073 × 10−7	3.00 × 10−5
	Slope lower	2.63 × 10−5	1.35 × 10−7	−1.25 × 10−6	2.23 × 10−5	3.596 × 10−6	7.96 × 10−8	1.848 × 10−6
	Slope upper	5.13 × 10−5	2.71 × 10−7	−8.57 × 10−7	3.41 × 10−5	1.004 × 10−5	1.35 × 10−7	5.810 × 10−5
	MAE	6.953	0.036	0.107	2.941	1.705	0.012	10.894
	R2 (adj.)	0.273***	0.257***	0.531***	0.505***	0.151***	0.471***	0.046*
Solar (NS)	Intercept estim.	60.842	0.941	−0.617	13.897	2.696	0.099	113.500
	Intercept lower	38.285	0.816	−1.059	1.357	−2.328	0.025	69.508
	Intercept upper	83.399	1.066	−0.174	26.438	7.721	0.174	157.568
	Slope estim.	−4.28 × 10−5	−1.19 × 10−7	8.50 × 10−7	−4.37 × 10−6	1.531 × 10−5	1.62 × 10−9	−1.02 × 10−4
	Slope lower	−7.33 × 10−5	−2.88 × 10−7	2.51 × 10−7	−4.37 × 10−6	8.504 × 10−6	−9.80 × 10−8	−1.61 × 10−4
	Slope upper	−1.22 × 10−5	5.066 × 10−8	1.45 × 10−7	−4.37 × 10−6	2.211 × 10−5	1.01 × 10−7	−4.19 × 10−6
	MAE	7.745	0.041	0.160	4.132	1.572	0.018	10.418
	R2 (adj.)	0.064**	0.009	0.065**	−0.008	0.168***	−0.015	0.126**

P-values are expressed as follows:

^***0>0.001

^**0.001>0.01

^*0.01>0.05.

NMDS = scores from the first axis of Non-Metric Multidimensional Scaling ordination; SLA = community weighted mean Specific Leaf Area; FD = Functional Diversity.