Local agricultural transition, crisis and migration in the Southern Andes - Ramiro Barberena; Pierre Luisi; Paula Novellino; Augusto Tessone; Daniela Guevara; Angelina García; Elizabeth A. Nelson; Petrus le Roux; Claudia Herrera; Graciela Coz; Matías Candito; Maria Lopopolo; et al. (Nature, 2026)