Table 1:

Model selection and final model output for linear models examining the change in mass of female common gartersnakes (Thamnophis sirtalis) living in enclosures in field and forest habitat with different food treatments

Model		k	AICc	ΔAICc
Mass ∼ Habitat		3	128.02	0.00
Mass ∼ Habitat + Start mass		4	130.25	2.23
Mass ∼ Habitat + Food		4	130.31	2.29
Mass ∼ Habitat + Start mass + Food + Habitat:Food		6	130.50	2.48
Mass ∼ Habitat + Start mass + Food + Habitat:Food + Weeks		7	138.48	10.46

Parameter	Estimate	SE	t	P-value
Intercept	19.63	4.02	4.88	<0.01
Habitat (forest)	−18.00	5.69	3.16	<0.01

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; and k is the number of parameters in the model.