Table 5.
General linear model analysis (GLMs) of shape and size variation between species taking into account the effect of the geographical context of divergence (Geog) and sample location as a nested factor
| GLMs | ||||
|---|---|---|---|---|
| df | SS | Z | p | |
| Centroid Size | ||||
| Species | 1 | 24.215 | 2.111 | .001* |
| Geog | 1 | 0.070 | 0.169 | .505 |
| Species:Geog | 1 | 1.787 | 1.572 | .005* |
| Location | 20 | 2.791 | 7.696 | .001* |
| Residuals | 516 | 5.307 | ||
| Total | 539 | 34.171 | ||
| Shape | ||||
| Species | 1 | 0.931 | 3.156 | .001* |
| Geog | 1 | 0.211 | 1.382 | .091 |
| Species:Geog | 1 | 0.092 | 0.401 | .340 |
| Location | 20 | 1.691 | 11.199 | .001* |
| Residuals | 516 | 4.251 | ||
| Total | 539 | 7.176 | ||
| Shape accounting for size | ||||
| CS | 1 | 0.914 | 6.221 | .001* |
| Species | 1 | 0.170 | 1.200 | .130 |
| Geog | 1 | 0.221 | 1.440 | .084 |
| Species:Geog | 1 | 0.041 | −0.580 | .718 |
| Location | 20 | 1.682 | 11.074 | .001* |
| Residuals | 515 | 4.148 | ||
| Total | 539 | 7.176 | ||
Individuals genetically classified as hybrids were excluded from this analysis.
Abbreviations: df, degrees of freedom; SS, sums of squares; Z, Z‐scores; p, p‐value (*indicates significant values).