Table 2.
Principal components analysis of salamander physiology
| PC1 | PC2 | PC3 | PC4 | PC5 | PC6 | PC7 | PC8 | |
|---|---|---|---|---|---|---|---|---|
| Snout vent length | -0.3671 | -0.1264 | 0.1101 | -0.2088 | 0.0598 | -0.3813 | 0.7488 | -0.2897 |
| Average front leg length | -0.3616 | -0.1704 | 0.4020 | -0.1325 | 0.3608 | -0.0167 | 0.0585 | -0.7261 |
| Average rear leg length | -0.3622 | -0.1919 | 0.3677 | -0.0349 | 0.2899 | 0.3445 | 0.3381 | 0.5980 |
| Tail length | -0.3553 | -0.1429 | 0.2964 | 0.3521 | -0.7942 | 0.0573 | 0.0186 | -0.0841 |
| Tail height | -0.3014 | 0.9390 | 0.1230 | 0.0522 | 0.0393 | 0.0789 | -0.0434 | 0.0024 |
| Tail width | -0.3533 | -0.1059 | -0.4626 | 0.7332 | 0.3285 | -0.0410 | -0.0454 | -0.0286 |
| Head width | -0.3652 | 0.0184 | -0.2859 | -0.2983 | -0.1181 | -0.6130 | 0.5482 | 0.0733 |
| Body width | -0.3579 | -0.0669 | -0.5407 | -0.4294 | -0.1676 | 0.5725 | -0.1298 | -0.1339 |
| Standard Deviation | 2.6800 | 0.6253 | 0.3926 | 0.3232 | 0.3052 | 0.1790 | 0.1524 | 0.1431 |
| Proportion of Variance | 0.8980 | 0.0489 | 0.0193 | 0.0131 | 0.0116 | 0.0040 | 0.0029 | 0.0026 |
Loadings, standard deviations and proportion of variances of eight principal components. The largest loading factors for each component are shown in bold.