Table 1:

Final, model averaged GLMMs testing for change in corticosterone levels over time in response to ACTH injection for R. catesbeiana (A), R. clamitans (B) and R. pipiens (C). Significant terms are bolded. The significance of the ‘Time’ and/or ‘Time2’ terms indicates a significant change in GCs over time, supporting the effects of ACTH on salivary GCs

A. Rana catesbeiana
Coefficient	Estimate	S.E.	df	t-Value	P-value
(Intercept)	0.75	0.40	13.72	1.90	0.08
Time	0.71	0.39	32.59	1.83	0.08
(Time2)	−1.0	0.34	32.60	−2.96	0.006
Sex (M)	−0.31	0.49	4.85	−0.62	0.56
Body condition	0.28	0.27	5.53	1.02	0.35
Random effect	Variance	S.D.
ID	0.17	0.41

B. Rana clamitans
Coefficient	Estimate	S.E.	df	t-value	P-value
(Intercept)	1.00	0.39	9.29	2.58	0.03
Time	0.78	0.30	37.35	2.66	0.01
Time2	−0.92	0.26	37.21	−3.49	0.001
Sex (M)	−0.11	0.51	6.02	−0.22	0.83
Body condition	−0.05	0.27	6.00	−0.19	0.86
Random effect	Variance	S.D.
ID	0.43	0.66

C. Rana pipiens
Coefficient	Estimate	S.E.	df	t-value	P-value
(Intercept)	1.23	0.28	38	4.43	7.8e-05
Time	0.56	0.21	38	2.66	0.01
Time2	−0.71	0.17	38	−4.15	0.0002
Sex	−0.27	0.37	38	−0.72	0.47
Body condition	−0.04	0.16	38	−0.28	0.78
Random effect	Variance	S.D.
ID	0.0	0.0