Definition: The largest scale biogeographic division of the earth's surface based on the historic and evolutionary distribution patterns of plants and animals.
Attribution: Udvardy, M. D. F. (1975). A classification of the biogeographical provinces of the world. IUCN Occasional Paper no. 18. Morges, Switzerland: IUCN
Definition: A taxon is Near Threatened when it has been evaluated against the criteria but does not
qualify for Critically Endangered, Endangered or Vulnerable now, but is close to qualifying
for or is likely to qualify for a threatened category in the near future.
Definition: A habitat that is in or on a body of water containing low concentrations of dissolved salts and other total dissolved solids (<0.5 grams dissolved salts per litre).