Fields of the Tzotzil: The Ecological Bases of Tradition in Highland ChiapasFields of the Tzotzil is the first study of social processes in contemporary highland Maya communities to encompass a regional view of the highlands of Chiapas as a system. In viewing tradition, not as a survival of traits, but as a dynamic process of adaptation by local systems to their placement in larger social and economic systems, it lays to rest the theory that tribal peoples apparently are politically and economically isolated. In addition, its