Table 2.
ANCOVA analyses of the effect of diet manipulation and plasma carotenoid levels on female choice components
| Diet | Pre-supplementation plasma carotenoid levels | |||||
|---|---|---|---|---|---|---|
| Mate choice component | F | df | p | F | df | p |
| Responsiveness | 9.37 | 1,24 | 0.0054 | 0.081 | 1,24 | 0.78 |
| Discrimination | 0.24 | 1,24 | 0.62 | 15.71 | 1,24 | 0.00058 |
| Preference function | 1.44 | 1,24 | 0.24 | 3.44 | 1,24 | 0.076 |
Results of univariate ANCOVAs testing the effects of dietary carotenoid supplementation and pre-supplementation plasma carotenoid levels on the three components of female choice for male plumage coloration.