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Table 4 Results of a pair-wise ranking of factors considered threats to P. thonningii and their degrees of destructive effects

From: Ethnobotany of an indigenous tree Piliostigma thonningii (Schumach.) Milne-Redh. (Fabaceae) in the arid and semi-arid areas of South Omo Zone, southern Ethiopia

Threatening factors Respondents of each Kebele
K1 K2 C1 C2 G1 G2 D1 D2 U1 U2 Ky1 Ky2 Total Rank
Firewood 4 4 4 4 5 4 4 4 5 5 4 5 52 2
Agricultural expansion 5 5 5 5 4 5 4 5 4 4 5 4 55 1
Overgrazing 2 2 3 1 3 2 1 2 2 2 2 3 25 4
Fencing 3 2 2 3 2 3 2 3 3 1 3 2 29 3
Household and Farm materials 1 1 1 2 2 1 0 1 1 2 2 1 15 5
Charcoal 0 0 1 0 1 1 1 0 0 0 0 0 4 6
  1. NB: K Kako, C Cali, G Goldiya, D Dimeka zuriya, U Eriya Umbule, Ky Eriya Kayisa