Fig. 7From: Tradeoff between robustness and elaboration in carotenoid networks produces cycles of avian color diversificationCarotenoid compounds that have fewer reactions from the dietary compound (a), have shorter (b) and more (c) enzymatic reactions to other compounds, and those that are parts of distinct clusters (d) are more common across bird species (occurrence across species is the node diameter in Fig. 4b). Shown are partial regression plots, b ST is standardized regression coefficient (in SD)Back to article page