Table 2.

Diversity indexes for WEP in the four study villages

Diversity parameters	Assok		Doum		Bemba		Nkolemboula
	Plants	Recipes	Plants	Recipes	Plants	Recipes	Plants	Recipes
Number of informants (Inf)	18		16		23		16
Number of quotations (Ni)	259		312		505		443
Richness	38	44	40	49	59	80	54	66
Density	2.11	2.44	2.50	3.06	2.57	3.48	3.38	4.13
Shanon (H)	4.53	4.90	4.66	5.20	5.24	5.83	5.49	5.68
Pielou (€)	0.86	0.90	0.88	0.93	0.89	0.92	0.95	0.94
Simpson (D)	0.06	0.04	0.05	0.03	0.03	0.02	0.03	0.02