NGS Style Manual‎ > ‎- E -‎ > ‎

endangered, threatened, vulnerable species

These words have specific meaning when used for species included in such documents as the IUCN Red List, the U.S. Fish and Wildlife Threatened and Endangered Animals and Plants list, or the Convention on International Trade in Endangered Species (CITES).

The designation for the same species may vary from list to list.

If possible cite the source when describing a species as endangered, threatened, or vulnerable.