Researcher in the:

- CIRAD, UMR Eco&Sols, Montpellier, France.

- Eco&Sols, Univ Montpellier, CIRAD, INRA, IRD, Montpellier SupAgro, Montpellier, France.

- El Colegio de la Frontera Sur, CONACyT research fellow, San Cristóbal de las Casas, Chiapas, México.