Agricultural expansion and the ecological marginalization of forest-dependent people

作者：Christian Levers, Alfredo Romero‐Muñoz, Matthias Baumann, Teresa De Marzo, Pedro David Fernández, Ignácio Gasparri, Gregorio Ignacio Gavier-Pizarro, Yann le Polain de Waroux, María Piquer Rodríguez, Asunción Semper‐Pascual, Tobias Kuemmerle · 发表于：Proceedings of the National Academy of Sciences · 年份：2021 · DOI：10.1073/pnas.2100436118 · 被引用次数：81 · 研究领域：Conservation, Biodiversity, and Resource Management、Agriculture, Land Use, Rural Development、French Urban and Social Studies

Significance Millions of people globally rely on forest-based resources for their livelihoods, particularly in the tropics and subtropics. Deforestation is often hypothesized to diminish forest-dependent communities’ resource base and to push them toward more-marginal environments, but such ecological marginalization has rarely been quantified. We developed an approach to identify homesteads of forest-dependent people and to track their resource base over 30 y across the entire South American Gran Chaco (1.1 million km 2 ). This highlighted that forest-dependent people are widespread across the Chaco forests, that their numbers have declined drastically since the 1980s, and that expanding commodity agriculture diminishes their resource base. Sustainability assessments must urgently consider forest-dependent people better, and our study provides a way forward to do so.