title: Maya collapse cycles.
authors.affiliation: mmasson@albany.edu
authors.forename: Marilyn A
authors.initials: MA
authors.lastname: Masson
mesh_terms: D002962:Civilization / Q000266:history*; D003247:Conservation of Natural Resources / Q000266:history*; D017753:Ecosystem; D004777:Environment; D006801:Humans; D007197:Indians, Central American / Q000266:history*