Before revision: kottak has divided ecological anthropology into two stages:a .Old Ecological Anthropology b.New Ecological Anthropology
After revision: kottak has divided ecological anthropology into two stages:a .Old Ecological Anthropology Ecological anthropologist, Conrad Kottak published arguing there is an original older 'functionalist', apolitical style ecological anthropology and, as of the time of writing in 1999, a 'new ecological anthropology' was emerging and being recommended consisting of a more complex intersecting global, national, regional and local systems style or approach.