Local Knowledge and Conservation Priorities of Medicinal Plants near a Protected Area in Brazil
Table 3
Criteria used for scoring the relative density, collection risks, local importance and diversity of use of medicinal plants (modified by Dzerefos and Witkowski 2001 and Albuquerque et al. 2011a).
Criterion
Score
Relative Density (D)
None recorded - very low (0 – 1)
10
Low (10 < 3,5)
7
Medium (35 < 7)
4
High (≥ 7)
1
Collection Risk (H)
(i) Destructive plant collection or over-exploitation of roots or bark. The collection involves the removal of the individual.
10
(ii) Aerial structures, such as bark and roots, and removal of parto stem for extraction of latex, which are collected without causing death to the individual.
7
(iii) Permanent aerial structures such as leaves that are removed, potentially affecting plant energy investment, survival and long-term reproductive success.
4
(iv) Removal of transient aerial structure, such as flowers and fruits. Regeneration of the population can be altered in the long term by removal from the seed bank, but the individual plant is not affected.
1
Local Importance (L)
(i) Very High (listed by > de 75% of local informants).
10
(ii) Moderately high (listed by 50-75% of local informants).
7
(iii) Moderately low (listed by 25-50% of local informants).
4
(iv) Very low (listed by < 25% of local informants).
1
Diversity of use (V)
(i) One point is added for each medicinal use up to the maximum of 10.
1 – 10
(E) Associated Timber Use
For species with timber use 10 points are added to the formula
