Local agricultural transition, crisis and migration in the Southern Andes - Nature

Nature, Published online: 18 March 2026; doi:10.1038/s41586-026-10233-zIn the Uspallata Valley, agriculture was adopted by local populations, as evidenced by genetic continuity from earlier hunter-gatherers to farmers; maize-dependent groups from the same regional population later experienced stress and demographic decline and likely used social organization and migration as resilience strategies.