Table 3:

Model selection for linear mixed-effects models examining the faecal corticosterone metabolite concentrations of female common gartersnakes (T. sirtalis) living in enclosures in field and forest habitat with different food treatments

Model	k	AICc	ΔAICc
fCM ∼ 1	4	53.66	0.00
fCM ∼ Habitat	5	58.17	4.51
fCM ∼ Temperature	5	63.23	9.57
fCM ∼ Habitat + Food	6	63.69	10.03
fCM ∼ Habitat + Food + SVL	7	74.32	20.66
fCM ∼ Habitat + Food + SVL + All interactions	11	113.22	59.56

Abbreviations: AICc is the bias-corrected Akaike's information criterion value; ΔAICc is the difference in AICc between each model and the model with the lowest AICc; fCM is the faecal corticosterone metabolite; and k is the number of parameters in the model. The final model contained no predictor variables.