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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