Table 1.
Intraspecific differences on head morphology among casque‐headed lizards. Bold numbers indicate a p‐value < 0.05
| Species | N ♂ | N ♀ | SVL pair t‐test p‐value | Procrustes ANOVA: shape by sex (no allometry) | Procrustes ANOVA: shape by sex (with allometry) | Sex disparity ratio (allometry correction) ♂ vs. ♀ | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Sex | log(size) | Sex | ||||||||
| F | p‐Value | F | p‐Value | F | p‐Value | |||||
| Basiliscus plumifrons | 13 | 12 | .004 | 18.110 | .001 | 15.121 | .001 | 5.631 | .001 | 1.680 |
| Basiliscus basiliscus | 10 | 10 | .001 | 15.673 | .001 | 15.439 | .001 | 0.934 | .391 | 2.082 |
| Basiliscus galeritus | 9 | 9 | .195 | 3.239 | .027 | 6.608 | .001 | 1.107 | .275 | 0.407 |
| Basiliscus vittatus | 20 | 20 | .001 | 45.849 | .001 | 39.651 | .001 | 6.912 | .001 | 1.501 |
| Corytophanes cristatus | 16 | 20 | .229 | 1.198 | .279 | 2.669 | .026 | 0.636 | .634 | 1.246 |
| Corytophanes hernandesii | 5 | 25 | .066 | 1.091 | .301 | 3.481 | .008 | 1.054 | .309 | 0.682 |
| Corytophanes percarinatus | 10 | 41 | .262 | 0.659 | .717 | 3.024 | .013 | 0.652 | .714 | 0.769 |
| Laemanctus longipes | 2 | 13 | — | 1.057 | .347 | 1.334 | .222 | 1.300 | .186 | — |
| Laemanctus serratus | 3 | 48 | — | 0.945 | .449 | 0.893 | .498 | 0.990 | .397 | — |