Fig. 2
From: Multi-isotope analysis reconstructs termite feeding in chimpanzees
Isotopic values of the Issa Valley fauna: (a) δ15Nenamel, (b) δ13Cenamel, (c) δ18Oenamel. Boxplots on the right show values grouped by ecological category, while those on the left display only the primate data, separated by taxon for better visualization. Boxplots show interquartile ranges with medians indicated as solid lines. Among primates, chimpanzees exhibit the lowest δ15Nenamel values, overlapping with grazing herbivores. Baboons have the highest median δ13Cenamel, consistent with regular C4 resource utilization in open woodlands. The largest variation in δ18Oenamel values occurs among forest-dwelling browsers. Note there is a break in the in δ13Cenamel axis between − 12 and − 1‰.
