Table 4. Best descriptive linear models for 14 vegetation attributes (VA) as a function of 1, 2 and 3 textural variables (TV) with corresponding R ², P and R ² _CV values.

VA	TV	R 2	P	R 2 cv	IRMEAN	REDVAR	REDMEAN	NDVIASM	EVIASM	IRCORR	REDDR	NDVISKEW	NDVIMEAN	EVIMEAN	NDVIDISS	REDCONT	IRVAR	EVISKEW
BAT	1	0.802	<0.001	0.755		−
	2	0.926	<0.001	0.900		−									+
	3	0.958	<0.001	0.907		−	−									+
BAU	1	0.784	0.001	0.733		−
	2	0.916	<0.001	0.875		−									+
	3	0.957	<0.001	0.906					−								−	+
Hgt	1	0.819	0.003	0.772		−
	2	0.887	0.004	0.841		−
	3	0.939	0.005	0.861	−				−									+
Age	1	0.822	<0.001	0.755			−
	2	0.851	0.001	0.761			−
	3	0.937	0.001	0.872			−				−					+
CCU	1	0.802	0.001	0.629		−
	2	0.884	0.002	0.777		−						−
	3	0.931	0.002	0.807	−				−	+
CCT	1	0.809	0.003	0.630		−
	2	0.885	0.003	0.769		−						−
	3	0.923	0.015	0.797	−				−	+
SU	1	0.597	0.028	0.442	−
	2	0.877	0.005	0.792	−			−
	3	0.910	0.012	0.849	−			−									+
ST	1	0.743	0.001	0.636			−
	2	0.869	0.002	0.778	−
	3	0.897	0.036	0.776	−			−				+
H' U	1	0.603	0.019	0.464			−
	2	0.820	0.012	0.721	−			−
	3	0.881	0.062	0.678	−				−	−
D' T	1	0.721	0.002	0.560			+
	2	0.813	0.009	0.736									−	+
	3	0.849	0.163	0.732				+					−	+
D' U	1	0.573	0.049	0.423			+
	2	0.774	0.035	0.650	+			+
	3	0.843	0.178	0.436	+
H' T	1	0.674	0.018	0.440			−
	2	0.751	0.115	0.511						−	−
	3	0.810	0.329	0.584						−	−
DnU	1	0.513	0.119	0.314
	2	0.685	0.252	0.497									−
	3	0.778	0.548	0.379								−	−
DnT	1	0.354	0.530	0.142				−
	2	0.652	0.360	0.417					−					−
	3	0.750	0.691	0.459	−	−					+

Only those textural variables that were included in at least two models are shown. For the descriptive models conventional R ² values are reported, while for the predictive models R ² _CV is reported, so the values are not strictly comparable (see Methods for explanation). P–values calculated from the empirical distribution of the largest expected R ². TV entries in bold typeface are the best models according to AICc when comparing, for each VA separately, models of different type. The plus (+) and minus (−) symbols denote the sign of the coefficients in the models (values reported in Table S2). See Table 1 for vegetational attributes abbreviations. IR: near infra-red band, RED: red band, NDVI: Normalized Difference Vegetation Index, EVI: Enhanced Vegetation Index. See Table 3 for the description of textural variables denoted by subindices _MEAN, _VAR, _ASM, _CORR, _DR, _SKEW, _DISS, and _CONT.