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