Keywords: Agroecology, agrobiodiversity, ethnoecology, landscape ecology, adaptation and resilience

Small-scale agriculture sustains the livelihoods of most of the population in the tropics, and produces an estimated 50 % of the food calories at the global scale. This form of agriculture largely depends from the management of agrobiodiversity, including crop diversity, the diversity of auxilliaries organisms that spontaneously colonize agroecosystems, such as pollinators or pest predators, and the diversity of associated knowledge systems.

Scholars increasingly call for getting a better understanding of the role played by agrobiodiversity in the resilience of agroecosystems in the face of global changes, especially climatic ones. Their is especially a lack of knowledge concerning how smallholder farmers use and manage agrobiodiversity at the local scale to adapt, and how the local management systems affect the availability and accessibility of this resource for small farms. Such understanding is crucial to build agricultural development policies and initiatives that fit smallholders' specific needs for adaptation.

My research aims to address this gap by :

i. documenting the changes in agrobiodiversity and in its management implemented by smallholder farmers over time, and analyzing the interplay between their different drivers ;

ii. analyzing the local agrobiodiversity management systems, including farmers' practices, knowledge, and their interactions with a diversity of stakeholders, and exploring their impacts on the dynamics of this ressource. I am especially developing research on the social networks involved in the circulation of biological resources(e.g., crops), and of the knowledge concerning their management.

As a researcher in the SENS research group, I contribute in developing multi-actor

companion modeling approaches for sharing knowledge, enhancing the dialogue between different stakeholders, and exploring scenarios for agrobiodiversity management to enhance agroecosystems' resilience.

I am also actively involved in the interdisciplinary GDR ReSoDiv network that aims at developing statistical methods based on network models for the study of agrobiodiversity dynamics.

I am currently conducting research on crop diversity trajectories in diversified agroecosystems in Madagascar (SoLDivA project), and Senegal (CoEx project). I also contribute to the LICCI (Local Indicators of Climate Change Impact) project, coordinated by Victoria Reyes-Garçìa from ICTA, Universitat Autònoma de Barcelona.

Talk on seed systems diversity (in French)