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Table 3 Rank attribution in the compound ranking system (CRS) method (adapted from Magos Brehm et al. [21])

From: Species richness, cultural importance, and prioritization of wild spices for conservation in the Sudano-Guinean zone of Benin (West Africa)

Criteria Rank of sub-criteria
R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11
Species origin Native Exotic Doubtfully native No data – – – – – – –
Economic value High Average Low No data – – – – – – –
Ethnobotanical value 20 19 18 17 16 15 14 13 12 No data –
Global distribution WA WA + 1 region WA + 2 regions WA + 3 regions Africa World No data – – – –
National distribution 1 2 2 4 5 6 7 8 9 10 No data
Conservation status in situ ex situ Other No data – – – – – – –
Legislation International National Local No data – – – – – – –
Threatened status CR EN VU NT LC DD NE – – – –
  1. WA West Africa, CR critically endangered, EN endangered, VU vulnerable, NT near threatened, LC least concern, DD data deficient, NE not evaluated
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