Table 2. Contributions of the case studies to the first four axes (F1 to F4) provided by the Multiple Correspondence Analysis (MCA). -- or ++ means a highly significant contribution to the axis (p<0.01)

  F1 F2 F3 F4
Percent of total variance 21,9 18,8 15,1 12,3
High Atlas 6,20 0,13 4,86 31,87 - -
Argan Forest 2,64 20,36 - - 3,04 4,15
Corsica 14,46 - - 3,53 13,10 - - 2,06
The Cevennes 11,79 - - 3,79 11,44 - - 0,83
Gascony 2,42 18,39 + + 14,04 + + 2,16
Indonesia 7,75 + 11,82 - - 1,20 0,77
Truffles 13,07 - - 3,51 39,08 + + 2,49
Indian AgroForest 0,11 1,99 0,25 47,73 + +
Indian Reserved Forest 14,04 + + 18,38 + + 6,11 5,83
Pyrenees Ash tree 6,32 18,05 + + 6,88 0,38
Cameroon 21,20 + + 0,05 0,00 1,72