From: Cranial morphology of captive mammals: a meta-analysis
 |  | Directionality | Magnitude | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
 |  | r | SE | Z | LB | UB | r | SE | Z | LB | UB | |
Skull Length = | Full Model |  | 0.01 | 0.19 | 0.07 | −0.37 | 0.39 | 0.35 | 0.06 | 6.07*** | 0.24 | 0.46 |
Trophic Level | Carnivores | 0.12 | 0.30 | 0.38 | −0.48 | 0.71 | 0.38 | 0.08 | 5.00*** | 0.12 | 0.67 | |
Omnivores | 0.19 | 0.41 | 0.47 | − 0.61 | 0.99 | 0.22 | 0.13 | 1.70 | −0.33 | 0.48 | ||
Herbivores | −0.17 | 0.34 | −0.50 | − 0.83 | 0.49 | 0.39 | 0.14 | 2.83** | 0.12 | 0.67 | ||
 | Dietary Breadth | 1 | 0.07 | 0.34 | 0.19 | −0.61 | 0.74 | 0.36 | 0.08 | 4.44*** | 0.20 | 0.53 |
 | 2–3 | −0.05 | 0.30 | −0.16 | − 0.64 | 0.54 | 0.41 | 0.11 | 3.83*** | 0.20 | 0.62 | |
 |  | 4+ | 0.28 | 0.35 | 0.81 | −0.40 | 0.96 | 0.19 | 0.14 | 1.34 | −0.08 | 0.45 |
 | Home Range | Small | −0.05 | 0.29 | −0.18 | −0.63 | 0.52 | 0.39 | 0.08 | 4.72*** | 0.23 | 0.56 |
 | Medium | 0.25 | 0.34 | 0.73 | −0.42 | 0.91 | 0.14 | 0.16 | 0.86 | −0.18 | 0.46 | |
 |  | Large | 0.24 | 0.36 | 0.66 | −0.47 | 0.94 | 0.35 | 0.11 | 3.31*** | 0.14 | 0.55 |
Skull Width = | Full Model |  | −0.19 | 0.19 | −0.98 | − 0.57 | 0.19 | 0.45 | 0.15 | 2.91** | 0.15 | 0.75 |
Trophic Level | Carnivores | −0.20 | 0.34 | 0.59 | −0.87 | 0.47 | 0.71 | 0.24 | 2.99** | 0.25 | 1.18 | |
Omnivores | −0.02 | 0.41 | −0.05 | − 0.82 | 0.78 | 0.10 | 0.29 | 0.35 | −0.47 | 0.67 | ||
 | Herbivores | −0.28 | 0.35 | −0.82 | −0.96 | 0.40 | 0.42 | 0.24 | 1.74 | −0.05 | 0.90 | |
 | Dietary Breadth | 1 | −0.34 | 0.26 | −1.28 | −0.86 | 0.18 | 0.69 | 0.19 | 3.73*** | 0.33 | 1.06 |
 | 2–3 | −0.18 | 0.32 | −0.57 | − 0.81 | 0.45 | 0.33 | 0.24 | 1.40 | −0.13 | 0.80 | |
 |  | 4+ | 0.18 | −0.32 | − 0.55 | −0.45 | 0.80 | −0.01 | 0.23 | −0.04 | − 0.48 | 0.46 |
 | Home Range | Small | −0.29 | 0.24 | −1.19 | −0.76 | 0.19 | 0.49 | 0.20 | 2.44* | 0.10 | 0.88 |
 | Medium | 0.01 | 0.29 | 0.03 | −0.56 | 0.58 | 0.20 | 0.26 | 0.78 | −0.31 | 0.71 | |
 |  | Large | −0.13 | 0.31 | −0.41 | −0.74 | 0.48 | 0.49 | 0.26 | 1.87 | −0.02 | 1.00 |
Skull L:W = | Full Model |  | 0.07 | 0.16 | 0.45 | −0.25 | 0.39 | 0.36 | 0.13 | 2.85** | 0.11 | 0.60 |
Trophic Level | Carnivores | 0.18 | 0.25 | 0.72 | −0.30 | 0.66 | 0.39 | 0.18 | 2.16* | 0.04 | 0.75 | |
Omnivores | −0.01 | 0.56 | −0.02 | −1.10 | 1.08 | 0.03 | 0.42 | 0.07 | −0.80 | 0.86 | ||
 | Herbivores | 0.05 | 0.28 | −0.17 | −0.60 | 0.50 | 0.38 | 0.21 | 1.78 | −0.04 | 0.80 | |
Dietary Breadth | 1 | 0.18 | 0.21 | 0.86 | −0.23 | 0.59 | 0.36 | 0.17 | 2.14* | 0.03 | 0.70 | |
2–3 | −0.13 | 0.27 | −0.47 | − 0.67 | 0.41 | 0.33 | 0.23 | 1.47 | −0.12 | 0.78 | ||
 |  | 4+ | −0.01 | 0.30 | −0.02 | −0.59 | 0.58 | 0.34 | 0.25 | 1.34 | −0.16 | 0.84 |
 | Home Range | Small | 0.13 | 0.22 | 0.62 | −0.29 | 0.56 | 0.55 | 0.15 | 3.72*** | 0.26 | 0.84 |
 | Medium | 0.14 | 0.26 | 0.54 | −0.37 | 0.66 | 0.29 | 0.22 | 1.34 | −0.13 | 0.72 | |
 |  | Large | −0.04 | 0.25 | −0.16 | −0.57 | 0.48 | 0.14 | 0.19 | 0.77 | −0.22 | 0.51 |