From single species to multiethnic ethnobotanical databases to understand past land use Methods in historical ecology : insights from Amazonia Odonne, G. Davy, D. /Grenand, Pierre In this chapter, we propose a methodology in historical ethnoecology based on our collaborative experience with Amerindians from French Guiana. We assume that Native Americans still have an intimate practice of nature and a deep knowledge of their culture that can provide us with integrative elements for understanding ancient historical landscapes. Their knowledge of plant species indicative of anthropisation, as well as their pedological, agronomic or historical knowledge, collected at different scales make it possible to reconstruct the history of landscapes in a complementary way. Routledge Odonne, G. (ed.) /Molino, Jean-François (ed.) 2021 text https://www.documentation.ird.fr/hor/fdi:010081773 fdi:010081773 Odonne G., Davy D., Grenand Pierre. From single species to multiethnic ethnobotanical databases to understand past land use. In : Odonne G. (ed.), Molino Jean-François (ed.), . Methods in historical ecology : insights from Amazonia Routledge, ). 2021, 146-152 EN AMAZONIE