Fig. 5: Pairwise comparisons of the number of foraging niches, trophic niches, and habitat types occupied by clades and either their mean complexity or species richness.
From: Bird clades with less complex appendicular skeletons tend to have higher species richness
Mean complexity score and species richness were log10-transformed. The negative correlations between mean clade complexity and a) the number of foraging niches, c) the number of trophic niches, and e) the number of habitat types are shown, and the correlations with foraging niche and habitat type are significant and marginally significant, respectively. The positive correlations between clade species richness and b) the number of foraging niches, d) the number of trophic niches, and f) the number of habitat types are shown. All of these comparisons with species richness are statistically significant. The number of clades (N) that occupy each number of categories are indicated in each panel. The boxplots show the median, upper and lower quartile, and upper and lower extreme of mean complexity and species richness for the clades that occupy each number of different categories. Outliers are indicated.
