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