Fig. 3
From: Multi-isotope analysis reconstructs termite feeding in chimpanzees
Biplots of (a) δ15Nenamel vs. δ13Cenamel, (b) δ15Nenamel vs. δ18Oenamel, and (c) δ18Oenamel vs. δ13Cenamel of Issa Valley fauna. Ellipses indicate 40% SEAC, convex hulls encompass full variation for each group (lines). Due to limited sample size (n < 5) for most primate taxa, SEAC was calculated only for baboons. Chimpanzees’ isotopic niche is presented as a convex hull only. Individual data points for red-tailed and red colobus monkeys are displayed but excluded from statistical analyses. Note that grazers are not shown in panels (a) and (c) due to distinct δ13Cenamel values; but extended plots including this group are provided in Supplementary Figure S2.
