%0 Book Section %B Andean Ecology and Civilization %D 1985 %T Ecological duality and the role of the center: Northern Potosí %A Harris, Olivia %E Masuda, Shozo %E Shimada, Isumi %E Morris, Craig %C Tokyo %I University of Tokyo Press %K adaptation ecology altitude verticality domestication pastoralism agriculture camelids tubers %L UCSB Main Lib F2212 .W46 %P 311-335 %Z ethnic economies, ethnic strips. individual groups control parallel strips ranging from lowland agriculture to puna grassland