A New Application for the Optimal Foraging Theory: The Extraction of Medicinal Plants
Figure 2
Tannin content and bark thickness in relation to the diameter classes in a population of Anadenanthera colubrina (Vell.) Brenan in the Carão community, Altinho, PE, Brazil. (a) Ratio between bark thickness and diameter classes from 2 (6–8,99 cm) to 18 (54–56,99 cm) . (b) Distribution of tannin concentrations in relation to the diameter classes from 2 (6–8,99 cm) to 10 (30–32,99 cm) .
