title: Categorization systems of threatened species.
authors: Biodiversity Institute, The University of Kansas, Dyche Hall, 1345 Jayhawk Boulevard, Lawrence, KS 66045, USA. jsoberon@ku.edu
authors: Jorge
authors: J
authors: Soberon
authors: Rodrigo A
authors: RA
authors: Medellín
mesh_terms: D000818:Animals; D000835:Animals, Wild / Q000145:classification*; D002965:Classification; D003247:Conservation of Natural Resources