Table 3.
Variable correlations (loadings) and variance explained of 16 log-transformed craniodental variables with derived principal components (PCs) extracted from ordination, and derived canonical variates (CVs) based on 16-group discriminant function analysis using specimens (n = 56) of Ototylomys from Chiapas, Campeche, and Tabasco, Mexico; Nicaragua; and Belize. *P < 0.01.
| Variable | PC1 | PC2 | CV1 | CV2 |
|---|---|---|---|---|
| Breadth of braincase | 0.814* | −0.505 | 0.782* | −0.106 |
| Breadth of rostrum | 0.815* | −0.093 | 0.370* | −0.004 |
| Condylobasal length | 0.964* | 0.121 | 0.356* | −0.025 |
| Greatest length of skull | 0.978* | 0.005 | 0.367* | 0.011 |
| Height of braincase | 0.838* | −0.033 | 0.411* | −0.014 |
| Least interorbital breadth | 0.834* | −0.419 | 0.448* | −0.062 |
| Length of incisive foramen | 0.704* | 0.382 | 0.346 | −0.018 |
| Length of maxillary tooth row | 0.685* | −0.550 | 0.655* | 0.676 |
| Mandibular Length | 0.941* | 0.167 | 0.361* | 0.360 |
| Mastoidal breadth | 0.847* | 0.035 | 0.356* | 0.169 |
| Nasal suture | 0.822* | 0.197 | 0.111* | 0.129 |
| Palatal length | 0.955* | 0.036 | 0.390* | 0.115 |
| Postpalatal length | 0.776* | 0.436 | 0.170 | −0.229 |
| Tympanic bullar length | 0.324* | 0.694 | −0.195 | 0.060 |
| Tympanic bullar width | 0.248 | −0.134 | −0.084 | −0.146 |
| Zygomatic breadth | 0.927* | 0.202 | 0.357* | −0.990 |
| Eigenvalues | 0.014 | 0.003 | 2.848 | 0.186 |
| % Variance | 65.180 | 11.230 | 93.900 | 6.100 |