Extended Data Fig. 3: Trait loadings along principal component (PC) dimensions based on all 9 phenotypic traits.
From: Macroevolutionary convergence connects morphological form to ecological function in birds
Results are shown for PC axes representing variation in shape, and thereby excluding PC1 which represents variation in body size. Colours indicate the increasing density of species (from yellow to red) on each 2-dimensional plane (n =9,963 species). See Supplementary Table 3 for trait loadings.
