FIGURE 2 in Flood pulse influence on the feeding ecology of two Amazonian auchenipterid catfishes

FIGURE 2 | Graphic representation of the Principal Coordinates Analysis (PCoA) of the diet composition of Auchenipterus nuchalis (A) from the Xingu River (Eastern Amazon, Brazil). Colors represent the hydrological seasons: flood (blue), dry (red), and filling (green). The contribution of the main food items is expressed according to the circle size (B – terrestrial insects; C – aquatic insects; and D – crustaceans). The purple color represents an overlap of dry and flood samples.