Fig. 4: Heritability of chromatic (PC1, PC2) and achromatic (L) components of colour variation in five plumage patches of male purple-crowned fairy-wrens (posterior mean values obtained using MCMCglmm). | Heredity

Fig. 4: Heritability of chromatic (PC1, PC2) and achromatic (L) components of colour variation in five plumage patches of male purple-crowned fairy-wrens (posterior mean values obtained using MCMCglmm).

From: Variability, heritability and condition-dependence of the multidimensional male colour phenotype in a passerine bird

Fig. 4

PC2 of the purple crown colouration and PC1 and PC2 of the blue tail colouration show moderate to substantial heritability. Error bars depict the 95% credible intervals. Also indicated (in brackets) is the proportion of chromatic variation explained by each PC for each patch colour. Purple: higher PC1 = higher UV/blue reflectance relative to green/red, higher PC2 = higher red reflectance relative to green and higher blue reflectance relative to UV, i.e. more purple overall; blue: higher PC1 = lower red reflectance relative to UV, blue and green, higher PC2 = higher UV, blue and red reflectance relative to green/yellow; buff-white and brown: higher PC1 = higher UV and lower red reflectance.

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