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. 2014 Nov 4;9(11):e112013. doi: 10.1371/journal.pone.0112013

Figure 2. Epidermal cell shape, gloss and colour parameters of bee- and bird-pollinated flower parts.

Figure 2

Means and standard errors of A) epidermal cell shape, B) floral gloss, colour contrast to the background in C) the colour hexagon model and D) in the receptor-noise limited model,(E) bee-subjective spectral purity according to the colour hexagon model, F) green contrast, G) chroma, and H) intensity for visually-active and for robbing-sensitive flower parts of bee- and bird-pollinated flowers. Asterisks above the bold line indicate differences according to one-way analysis of variance (ANOVA) with significance levels of ** for p<0.01 and *** for p<0.001. Different letters below the bold line denote significant differences according to pairwise comparisons using Tukey HSD.