Bird gut microbiota variation by diet.

(A) PCoA using weighted UniFrac differentiates the gut microbiota of birds with flesh-eating diet (red), mainly vegetarian diet (green), and mainly fish-eating diet (blue). Each dot is an individual bird. (B) Shannon diversity is highest in piscivores (p = 0.01, 0.03 respectively) but not significantly different between flesh-eaters and herbivores (p = 0.1). (C) Heatmap showing the relative abundance of the 52 taxa that are differentially abundant between the three dietary groups.