Table 1.
Analysis of covariance (ANCOVA) of semicircular canal shape against ecomorph, semicircular canal centroid size, head proportion and perch characteristics, with statistical significance assessed through 10 000 permutations. (Significant (p < 0.05) results are indicated in bold.)
| d.f. | SS | MS | R2 | F | Z | p-value | |
|---|---|---|---|---|---|---|---|
| ANCOVA (ecomorph and centroid size) | |||||||
| ecomorph | 5 | 0.042349 | 0.0084698 | 0.36273 | 3.7724 | 4.5749 | 0.0002 |
| centroid size | 1 | 0.013328 | 0.0133283 | 0.11416 | 5.9364 | 4.353 | 0.0001 |
| ecomorph : centroid size | 5 | 0.013925 | 0.002785 | 0.11927 | 1.2404 | 3.16 | 0.0007 |
| residuals | 21 | 0.047149 | 0.0022452 | ||||
| total | 32 | 0.116751 | |||||
| ANCOVA (ecomorph and head proportions) | |||||||
| ecomorph | 5 | 0.042349 | 0.0084698 | 0.36273 | 3.9739 | 4.7372 | 0.0001 |
| head proportion | 1 | 0.00331 | 0.0033099 | 0.02835 | 1.553 | 1.907 | 0.0412 |
| ecomorph : head proportion | 5 | 0.026334 | 0.0052668 | 0.22556 | 2.4711 | 4.5055 | 0.0001 |
| residuals | 21 | 0.044758 | 0.0021313 | ||||
| total | 32 | 0.116751 | |||||
| ANCOVA (perch characteristics) | |||||||
| height | 1 | 1446 | 1446 | 0.000701 | 0.0195 | 0.0143 | 0.9946 |
| diameter | 1 | 39212 | 39212 | 0.019007 | 0.5283 | 0.42849 | 0.60954 |
| height : diameter | 1 | 18447 | 18447 | 0.008942 | 0.2486 | 0.16515 | 0.75882 |
| residuals | 27 | 2003863 | 74217 | ||||
| total | 30 | 2062967 | |||||