Table 2.
The top supported models (ΔAICc < 2) from phylogenetic multivariate regression analyses examining the associations between body armour (i.e. osteoderm expression and spinosity), relative terrestrial predation pressure/risk and habitat use in cordyline lizards. Models are ranked from best to worst, with the best-fitting model given in italics. k, number of parameters; Δ, difference in mean AICc value among models; ω, Akaike weights; a, model parameters of EB evolutionary model; σ2, maximum-likelihood estimate of the variance rate.
| model | k | AICc | ΔAICc | ω | a | σ² |
|---|---|---|---|---|---|---|
| osteoderm | ||||||
| pPCARID | 4 | 25.03 | 0 | 0.22 | −24.83 | 8.35 |
| pPCARID + RTPPRES | 4 | 24.35 | 1.19 | 0.12 | −24.93 | 8.15 |
| pPCARID + RTPRISK | 4 | 24.78 | 1.61 | 0.10 | −24.27 | 7.95 |
| pPCARID + pPCTEMP | 4 | 24.76 | 1.60 | 0.10 | −23.79 | 7.71 |
| null | 3 | 25.03 | 1.86 | 0.08 | −31.83 | 15.05 |
| spines | ||||||
| null | 3 | 43.23 | 0 | 0.26 | −31.30 | 27.87 |