Table 2. Regression models and coefficients of determination for the relationships between indices of community structure (response variables) and age since abandonment, stand basal area (SBA), or light (predictor variables).

Diversity	Plant group	Age		SBA		Light
		M	R2	M	R2	M	R2
0 D α	Seedlings	P	0.27	P	0.44	E	0.31
	Saplings	P	0.55	P	0.72
	Trees	P	0.71	P	0.85
	Lianas	L	0.79	L	0.79
1 D α	Seedlings	P	0.23	L	0.39	E	0.43
	Saplings	P	0.43	L	0.61
	Trees	L	0.57	P	0.65
	Lianas	P	0.30	L	0.39
2 D α	Seedlings	L	0.14	L	0.25	-	ns
	Saplings	L	0.31	L	0.49
	Trees	L	0.47	P	0.50
	Lianas	-	ns	-	ns
Composition (1)	Seedlings	P	0.71	L	0.89	E	0.80
	Saplings	P	0.75	L	0.88
	Trees	P	0.31	P	0.47
	Lianas	P	0.60	P	0.81
Composition (2)	Seedlings	P	0.71	L	0.89	E	0.80
	Saplings	P	0.76	P	0.76
	Trees	P	0.38	P	0.57
	Lianas	P	0.63	P	0.63

⁽²⁾ calculated with presence/absence data; M  =  Model. P  =  power model; L  =  Linear model; E  =  Exponential model. ns  =  non-significant relationship (p>0.05), in all other cases significance is p ≤ 0.01.⁽¹⁾ Calculated with abundance weighted data;