The methodology is a quantitative ethnobotanical approach.
This survey was coupled with that conducted for the study of perception.
The questions asked respondents were to list the trees they used or used where the quarry is currently located for care, feeding, ceremonies and other needs. The names of the species are given in vernacular by villagers. With the help of an aboriginal person who accompanied us in the bush, a herbarium was set up for the determination of the species.
The answer rates per specie defined as the fidelity level (FL) have been expressed as: FL (%)=n/N*100.
Where n is number of informants related to a species and N = total number of informants.