A New Application for the Optimal Foraging Theory: The Extraction of Medicinal Plants

Table 2

Bark extraction of Anadenanthera colubrina (Vell.) Brenan by diameter classes and the types of many aculei and few aculei in a population of base of slope, Carão community, Altinho, PE, Brazil. *Diameter classes that concentrate extraction events in proportion.

Type of	“Many aculei” (MA)			“Few aculei” (PA)			All individuals
diameter classes (cm)	Without signs	With signs	Total	Without; signs	With signs	Total	Without; signs	With; signs	Total
1 (0–2.99)	15	0	15	216	0	216	231	0	231
2 (3–5.99)	69	0	69	142	1	143	211	1	212
3 (6–8.99)	86	0	86	103	0	103	189	0	189
4 (9–11.99)	66	2	68	58	1	59	124	3	127
5 (12–14.99)	51	1	52	51	2	53	102	3	105
6 (15–17.99)	33	2	35	24	2	26	57	4	61
7 (18–20.99)	16	1	17	16	4	20	32	5	37
8 (21–23.99)*	18	2	20	13	6	19	31	8	39
9 (24–26.99)*	8	1	9	4	2	6	12	3	15
10 (27–29.99)	10	0	10	1	1	2	11	1	12
11 (30–32.99)*	3	2	5	2	1	3	5	3	8
12 (33–35.99)	1	1	2	0	0	0	1	1	2
13 (36–38.99)	0	0	0	0	0	0	0	0	0
14 (39–41.99)	0	0	0	0	0	0	0	0	0
15 (42–44.99)	0	0	0	0	0	0	0	0	0
16 (45–47.99)	0	0	0	0	0	0	0	0	0
17 (48–50-99)	0	1	1	0	0	0	0	1	1
18 (51–53.99)	0	1	1	0	0	0	0	1	1
Total	376	14	390	630	20	650	1006	34	1040