“…Yet, transboundary studies have overlooked, on the one hand, the biophysical potential of natural regions to determine their limitations or constraints for development (i.e., natural primary productivity of ecoregions) and, on the other hand, the possible influence of land management in multiple land systems (i.e., integrating variables from different disciplines, such as accessibility, land-use, land protection and wealth) at large scales. Moreover, the few multi-national studies that included economic development variables compared across borders, included either a narrow portion of the border territory in the analysis (i.e., buffer) (Crespo Cuaresma et al 2017;Salisbury and Weinstein 2014) or looked at the effects of a single process of the land system (i.e., forest transition or deforestation) at the country level (Culas 2007;Perz et al 2005;Redo et al 2012;Southworth et al 2011). Understanding transnational socio-ecological land systems at large scales that include a variety of ecosystems and land-management variability (i.e., multi-disciplinary and multi-variable studies) is still a challenge for the socio-environmental sciences.…”