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. 2008 Feb 27;3(2):e1689. doi: 10.1371/journal.pone.0001689

Figure 1. Discriminable chromatic (ΔSvar, A) and achromatic variability (ΔLvar, B) of sexually selected or quality indicator colour patches versus other colour patches in males of five species of European birds.

Figure 1

Depicted are means and 95% confidence intervals (back transformed after Box-Cox transformation prior to analysis).