Table 2:

Results of the linear mixed models examining the influence of forest fragment size and level of human impact on log-transformed faecal glucocorticoid metabolite levels in Ateles hybridus

	d.f.	χ2	P value
Null vs. full model	9	113.38	<0.001*
Variable	Estimate ± SEM	t	PMCMC
Intercept	5.76 ± 0.33	17.52	0.0001*
Fragment size	0.09 ± 0.05	1.81	0.1694
Impact: both–none	−0.93 ± 0.32	−2.88	0.0134*
Impact: both–one	−1.37 ± 0.57	−2.39	0.0400*
Impact: one–none	0.43 ± 0.59	0.72	0.4820
Group size	0.03 ± 0.04	0.83	0.7428
Time	−0.29 ± 0.03	−8.72	0.0001*
Sex	0.14 ± 0.09	1.48	0.1532
Age	−0.33 ± 0.11	−2.84	0.0062*

Overall effect	d.f.	χ2	P
Female reproductive state	3	21.15	<0.001*
Fragment size	1	2.06	0.1565*
Human impact	2	17.5	0.0001*

*Variables that significantly influenced faecal glucocorticoid metabolite levels.