Importance ethnobotanique, modélisation de la répartition spatiale de Detarium senegalense J.F. Gmel et stratégies de sa conservation dans le contexte des changements climatiques et globaux au Togo

Abstract

Detarium senegalense is a species with multiple uses, but it remains poorly documented in Togo, which can hinder its proper management. The objective of this study is to contribute to the conservation and sustainable use of D. senegalense. An ethnobotanical survey was carried out and a total of three hundred and sixty (360) people who actually knew D. senegalense were submitted to a questionnaire through stratified sampling. Six (6) forms of use have been recorded from the respondents. Field installation and infrastructure were cited by respondents as the main threats to the species. A total of one hundred and forty (140) occurrence data were used to model the spatial distribution of the species. The bioclimatic data layers available on the Africlim website were used with the MaxEnt algorithm and the resulting maps were superimposed in the different ecological zones of Togo. A drastic reduction in the habitat of the species has been observed according to the scenarios rcp 4.5 and rcp 8.5 by 2055. Among the measures that can enable the sustainable management of D. senegalense, reforestation and domestication of the species were perceived as the most important by the respondents.