Professor of Mountain Science, Department of Geography, University of Georgia. Athens, GA. Working at the intersection of tropical mountain geographies, he contributes research at the forest transition and other active boundaries, such as the Andean treeline, Andean sustainable development, or the implication of biocultural heritage on Andean sacred sites and indigenous revival. By studying the role of human impacts in shaping the neotropical highlands, he is reconstructing ecological theory applicable to Andean farmscape transformation and Andean identity markers in the midst of global environmental change, developing new geocritical narratives of mountain sustainability as tropical environments are constructed, represented, claimed and contested.