Table 2. Results of hierarchical generalized linear mixed models for species abundance, species richness, reptile diversity, and individual species showing trends (Slope) including standard errors (SE).

Response	Model term	d.f.	?2	Slope	SE	Graphical summary
Reptile Abundance	Intercept			0.91	0.22
	tree canopy class	2	8.006*			Fig. 3a
	open woodland			0.32	0.24
	woodland			0.74	0.28
	grass structure	1	7.589**	0.27	0.10	Fig. 4a
Species Richness	Intercept			0.21	0.18
	tree canopy cover	2	6.511*			Fig. 3b
	open woodland			0.38	0.20
	woodland			0.59	0.23
	grass structure	1	8.627**	0.24	0.08	Fig. 4b
Reptile Diversity (Shannon index)	Intercept			0.23	0.11
	tree canopy class	2	9.74**			Fig. 3c
	open woodland			0.26	0.12
	woodland			0.42	0.13
	grass structure	1	10.49**	0.17	0.05	Fig. 4c
Boulenger's skink	Intercept			−4.27	0.56
	tree canopy class	2	10.461**			Fig. 5a
	open woodland			1.72	0.59
	woodland			2.06	0.64
	grass structure	1	0.017	−0.03	0.22
Delicate skink	Intercept			−3.68	0.41
	tree canopy class	2	20.33			Fig. 6b
	open woodland			0.39	0.43
	woodland			1.69	0.48
	grass structure	1	3.33	0.28	0.15
Common dwarf skink	Intercept			−4.24	0.53
	tree canopy class	2	1.917
	open woodland			0.69	0.57
	woodland			0.44	0.67
	grass structure	1	1.504	0.37	0.31
	grass structure∧2	1	2.507	−0.37	0.23
Eastern three-toe earless skink	Intercept			−5.61	0.54
	tree canopy class	2	6.3*			Fig. 5c
	open woodland			−0.12	0.37
	woodland			1.07	0.56
	grass structure	1	35.26***	1.15	0.19	Fig. 6a
Legless lizard	Intercept			−4.34	0.61
	tree canopy class	2	7.09*			Fig. 5d
	open woodland			−0.89	0.34
	woodland			−10.00	16.00
	grass structure	1	14.77***	2.44	0.63	Fig. 6b
	grass structurê2	1	14.17***	−0.89	0.24

Grassland has been used as a reference level for tree canopy class categories. Significance is indicated by the Wald statistic (χ2) and p-value as follows: *p<0.05, ** p<0.01, ***p<0.001.