Plant Stem Bark Extractivism in the Northeast Semiarid Region of Brazil: A New Aport to Utilitarian Redundancy Model
Figure 5
Area of bark extracted, distributed by diameter classes, of individuals of each species separately in the community of Carão, Altinho, northeastern Brazil. (a) Anadenanthera colubrina (Vell.) Brenan, (b) Myracrodruon urundeuva Allemão, (c) Amburana cearensis (Allemão) AC Sm, (d) Commiphora leptophloeos (Mart.) JB Gillett. The classes, at intervals of 3 cm, correspond from 1 (0–3 cm) to 17 (48.1–51 cm). The numbers above the bars correspond to areas of bark extracted for each diameter class indicated in cm2.
