Table 4. Intensity of red at the pelvic spines from the rearing experiment.
Daughters from the rearing experiment: Test statistics from a GLM type III (adjusted) sums of squares (SS) with intensity of red colour of the offsprings’ pelvic spines (IR) adjusted for body length as the response variable. Predictors are “length,” and IR of father’s pelvic spines (“Fathers’ IR”) and IR of mothers pelvic spines (“Mothers’ IR”), and these were entered the model as covariates. Adjusted R2 = 0.251.
| Source | SS | d.f. | F | P-value |
|---|---|---|---|---|
| Analysis of variance | ||||
| Length | 0.006 | 1 | 19.210 | <0.001 |
| Father’s IR | 0.001 | 1 | 4.786 | 0.030 |
| Mother’s IR | 0.002 | 1 | 5.175 | 0.025 |
| Mother’s IR* Father’s IR | 0.001 | 1 | 4.801 | 0.030 |
| Error | 0.038 | 129 | ||
| Total | 21.680 | 134 | ||
| Term | Coeff. | SE Coef. | t | P-value |
| Coefficients | ||||
| Constant | −1.693 | 0.893 | −1.896 | 0.060 |
| Length | 0.001 | <0.001 | 4.913 | <0.001 |
| Father’s IR | 5.203 | 2.378 | 2.188 | 0.030 |
| Mother’s IR | 5.546 | 2.438 | 2.275 | 0.025 |