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Table 6 Correlation of the variables to the axes

From: Use patterns, use values and management of Afzelia africana Sm. in Burkina Faso: implications for species domestication and sustainable conservation

Questionnaire item Variables PCA 1 PCA 2
Motivation to conserve Agroforestry species 0.3349 − 0.2913
Multipurpose species 0.8952 − 0.0051
Sacred species 0.6105 − 0.1489
Threatened species 0.9710 − 0.0100
Organs used Leaves 0.8700 − 0.0080
Barks 0.7854 − 0.0777
Fruits 0.0298 − 0.2844
Seeds 0.1180 − 0.0008
Roots 0.0000 − 0.3975
Wood 0.6543 − 0.0141
Trunk 0.4038 − 0.3732
Husk 0.9503 − 0.0034
Uses in medicine Headache 0.6889 − 0.0089
Stomach-ache 0.05913 − 0.2962
Articulations pain 0.5087 0.0000
Teeth pain 0.4472 − 0.0441
Bilharzia 0.9678 − 0.0050
Hemorrhoids 0.8704 − 0.0006
Meningitis 0.9774 − 0.0045
Malaria 0.9290 − 0.0156
Blindness 0.9597 − 0.0001
Ulcer 0.9531 − 0.0032
Sprain 0.9706 − 0.0028
Sore 0.6070 − 0.0647
Swelling 0.9540 − 0.0001
Sexual impotence 0.9638 − 0.0073
Undiagnosed diseases 0.9425 − 0.0044
Gall 0.7134 − 0.0000
Paralysis 0.9437 − 0.0094
Mental defect 0.3844 − 0.0003
Chronic cough 0.9427 − 0.0055
Hard childbirth 0.9485 − 0.0012
Fever 0.9432 − 0.0005
Vertigo 0.8076 − 0.0107
Uses in culture Family protection 0.3373 − 0.1476
Farm guarding 0.3733 − 0.2412
Fetish installation 0.3633 − 0.0896
Anti-bewitching 0.5173 − 0.0017
Magic 0.5249 − 0.0835
Anti-madness 0.9632 − 0.0034
Strength asking 0.7955 − 0.0509
Ask for good season 0.7438 − 0.0358
Twin rituals 0.6846 − 0.0642
Place of sacrifice 0.3285 − 0.0772
Veneration 0.8871 − 0.0231
Children names 0.9478 − 0.0001
Ask for richness 0.8699 − 0.0320
Uses in carpentry Furniture 0.4243 0.5093
Utensils 0.4521 0.5137
Farming tools 0.9561 − 0.0013
Musical instruments 0.6554 − 0.0980
Local practices Assisted regeneration 0.2394 − 0.0015
Pruning 0.8314 − 0.0140
Debarking 0.7582 − 0.0051
Fire protection 0.0156 0.5596
Occurrence habitats Farmlands 0.7358 − 0.1442
Fallows 0.6557 − 0.2050
Habitations 0.0002 − 0.0347
Protected areas 0.9472 − 0.0176
Sacred groves 0.6038 − 0.0070
Species status Abundant 0.0774 0.6143
Rare 0.4504 − 0.0003
Criteria of variations Tree size 0.8112 − 0.0721
Density 0.5643 − 0.0297
Functional treats 0.5018 − 0.0137
Existence of ecotypes Ecotypes 0.9601 − 0.0002
No other species 0.9643 − 0.0022
  1. Values with r ≥ 0.50 are presented in italics