Fig. 6
Informant-food plant curve (n = 72 informants). The relative change in slope observed in the figure at about 100 ethnospecies mentioned, corresponds to the last adult informant participating in extensive freelisting, while additional species were recorded by other means. In black: Observed values. In gray, dashed: Best-fitting theoretical curve (y = 26.462 ln x + 27.863; R2 = 0.971)