title: Ecology: Different worlds.
authors.affiliation: Paleontological Research Institution, Ithaca, New York 14850, USA and in the Department of Earth and Atmospheric Sciences, Cornell University, Ithaca.
authors.forename: Gregory P
authors.initials: GP
authors.lastname: Dietl
mesh_terms: D000383:Agriculture / Q000266:history*; D000818:Animals; D017753:Ecosystem; D006802:Human Activities / Q000266:history*; D006801:Humans; D018521:Plant Physiological Phenomena