Table 2:
Model selection and final model output for linear models examining the change in snout–vent length of female common gartersnakes (T. sirtalis) living in enclosures in field and forest habitat with different food treatments
| Model | k | AICc | ΔAICc | |
|---|---|---|---|---|
| SVL ∼ Habitat + Start SVL | 4 | 130.91 | 0.00 | |
| SVL ∼ Habitat + Start SVL + Food + Habitat:Food | 6 | 132.37 | 1.44a | |
| SVL ∼ Habitat + Start SVL + Food | 5 | 132.69 | 1.78a | |
| SVL ∼ Habitat + Start SVL + Food + Habitat:Food + Weeks | 7 | 132.76 | 1.85a | |
| SVL ∼ Habitat | 3 | 137.48 | 6.87 | |
| Parameter | Estimate | SE | t | P-value |
|---|---|---|---|---|
| Intercept | 124.50 | 32.03 | 4.04 | <0.01 |
| Habitat (forest) | −29.75 | 6.43 | 4.23 | <0.01 |
| Start SVL | −0.19 | 0.06 | 3.04 | <0.01 |
| Food | −7.18 | 6.70 | 0.41 | 0.69 |
| Habitat:Food | 15.11 | 12.81 | 1.31 | 0.22 |
| Weeks | 1.23 | 1.20 | 1.03 | 0.33 |
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; k is the number of parameters in the model; and SVL is the snout–vent length. aCompeting models that are within 2 AICc units of the best model. Estimates in the final model output are based on model averaging between competing models.