Comparison of nonlinear mixed effects models for five functional forms. Floristic (angiosperm/gymnosperm) and functional (evergreen/deciduous) groups were included as fixed effects and plot as a random effect. The standard deviation (SD) of each random term (a, b, and, where relevant, c) and residuals is given. AIC = Akaike's information criterion; n = number of tree individuals in each subsetted dataset

				Fixed effects
				Angiosperm n = 1,500,497			Gymnosperm n = 1,270,306			Evergreen n = 1,292,397			Deciduous n = 1,478,406
Eq.	AIC	Random	SD	a	b	c	a	b	c	a	b	c	a	b	c
H = aDb	15,250,159	a	0.42	2.37	0.53	NA	3.21	0.60	NA	3.25	0.60	NA	2.35	0.53	NA
		b	0.03
		Residual	3.79
MicMen	15,218,854	a	2.53	36.82	25.02	NA	41.88	37.6	NA	41.1	37.13	NA	37.16	24.96	NA
		b	6.29
		Residual	3.77
3-par exp	15,197,342	a	0.31	28.32	0.65	−3.24	28.95	2.03	−3.39	28.73	2.01	−3.4	28.51	0.82	−3.24
		b	0.69
		c	0.45
		Residual	3.76
Gompertz	15,185,010	a	0.30	25.13	1.88	0.94	25.26	2.06	0.93	25.46	2.04	0.93	24.84	1.88	0.94
		b	0.09
		c	0.003
		Residual	3.75
Logistic	15,192,597	a	0.48	23.97	12.98	9.31	23.97	15.63	10.51	24.24	15.46	10.38	25.53	12.98	9.33
		b	1.30
		c	0.60
		Residual	3.75