Correlations between residuals (raw and absolute) and relative UV reflectance. The residuals were obtained from the linear regression between colour variables obtained using reflectance measurements (predictor) and colour variables from bookplates (response)
| Variable | r (absolute residuals) | p (absolute residuals) | r (raw residuals) | p (raw residuals) |
| Sexual dichromatism | −0.16 | 0.27 | −0.31 | 0.028 |
| Sexual difference in colour elaboration | −0.15 | 0.3 | −0.22 | 0.128 |
| Colour elaboration ♂ | −0.15 | 0.26 | 0.13 | 0.36 |
| Colour elaboration ♀ | 0.06 | 0.69 | 0.07 | 0.64 |
| Colour diversity ♂ | 0.08 | 0.56 | −0.27 | 0.056 |
| Colour diversity ♀ | 0.17 | 0.23 | −0.22 | 0.118 |
| L ♂ | 0.07 | 0.6 | 0.15 | 0.29 |
| L ♀ | 0.03 | 0.83 | 0.21 | 0.13 |
| a ♂ | −0.15 | 0.27 | 0.05 | 0.73 |
| a ♀ | 0.17 | 0.25 | 0.03 | 0.82 |
| b ♂ | −0.08 | 0.58 | 0.08 | 0.57 |
| b ♀ | −0.08 | 0.59 | 0.13 | 0.35 |
| Variable | r (absolute residuals) | p (absolute residuals) | r (raw residuals) | p (raw residuals) |
| Sexual dichromatism | −0.16 | 0.27 | −0.31 | 0.028 |
| Sexual difference in colour elaboration | −0.15 | 0.3 | −0.22 | 0.128 |
| Colour elaboration ♂ | −0.15 | 0.26 | 0.13 | 0.36 |
| Colour elaboration ♀ | 0.06 | 0.69 | 0.07 | 0.64 |
| Colour diversity ♂ | 0.08 | 0.56 | −0.27 | 0.056 |
| Colour diversity ♀ | 0.17 | 0.23 | −0.22 | 0.118 |
| L ♂ | 0.07 | 0.6 | 0.15 | 0.29 |
| L ♀ | 0.03 | 0.83 | 0.21 | 0.13 |
| a ♂ | −0.15 | 0.27 | 0.05 | 0.73 |
| a ♀ | 0.17 | 0.25 | 0.03 | 0.82 |
| b ♂ | −0.08 | 0.58 | 0.08 | 0.57 |
| b ♀ | −0.08 | 0.59 | 0.13 | 0.35 |
Correlations between residuals (raw and absolute) and relative UV reflectance. The residuals were obtained from the linear regression between colour variables obtained using reflectance measurements (predictor) and colour variables from bookplates (response)
| Variable | r (absolute residuals) | p (absolute residuals) | r (raw residuals) | p (raw residuals) |
| Sexual dichromatism | −0.16 | 0.27 | −0.31 | 0.028 |
| Sexual difference in colour elaboration | −0.15 | 0.3 | −0.22 | 0.128 |
| Colour elaboration ♂ | −0.15 | 0.26 | 0.13 | 0.36 |
| Colour elaboration ♀ | 0.06 | 0.69 | 0.07 | 0.64 |
| Colour diversity ♂ | 0.08 | 0.56 | −0.27 | 0.056 |
| Colour diversity ♀ | 0.17 | 0.23 | −0.22 | 0.118 |
| L ♂ | 0.07 | 0.6 | 0.15 | 0.29 |
| L ♀ | 0.03 | 0.83 | 0.21 | 0.13 |
| a ♂ | −0.15 | 0.27 | 0.05 | 0.73 |
| a ♀ | 0.17 | 0.25 | 0.03 | 0.82 |
| b ♂ | −0.08 | 0.58 | 0.08 | 0.57 |
| b ♀ | −0.08 | 0.59 | 0.13 | 0.35 |
| Variable | r (absolute residuals) | p (absolute residuals) | r (raw residuals) | p (raw residuals) |
| Sexual dichromatism | −0.16 | 0.27 | −0.31 | 0.028 |
| Sexual difference in colour elaboration | −0.15 | 0.3 | −0.22 | 0.128 |
| Colour elaboration ♂ | −0.15 | 0.26 | 0.13 | 0.36 |
| Colour elaboration ♀ | 0.06 | 0.69 | 0.07 | 0.64 |
| Colour diversity ♂ | 0.08 | 0.56 | −0.27 | 0.056 |
| Colour diversity ♀ | 0.17 | 0.23 | −0.22 | 0.118 |
| L ♂ | 0.07 | 0.6 | 0.15 | 0.29 |
| L ♀ | 0.03 | 0.83 | 0.21 | 0.13 |
| a ♂ | −0.15 | 0.27 | 0.05 | 0.73 |
| a ♀ | 0.17 | 0.25 | 0.03 | 0.82 |
| b ♂ | −0.08 | 0.58 | 0.08 | 0.57 |
| b ♀ | −0.08 | 0.59 | 0.13 | 0.35 |
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