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The NatureServe conservation status system, maintained and presented by NatureServe in cooperation with the Natural Heritage Network, was developed in the United States in the 1980s by The Nature Conservancy (TNC) as a means for ranking or categorizing the relative imperilment of species of plants, animals, or other organisms, as well as natural ecological communities, on the global, national ...
NatureServe conservation categories; Conservation status GX Presumed Extinct (0 species) GH Possibly Extinct (0 species) G1 Critically Imperiled (8 species) G2 Imperiled (10 species) G3 Vulnerable (7 species) G4 Apparently Secure (25 species) G5 Secure (45 species) Other categories GNA Not Applicable (8 species) GNR Not Ranked (2 species)
The IUCN Red List of Threatened Species by the International Union for Conservation of Nature is the best known worldwide conservation status listing and ranking system. . Species are classified by the IUCN Red List into nine groups set through criteria such as rate of decline, population size, area of geographic distribution, and degree of population and distribution fragmenta
SNA — Not Applicable A conservation status rank is not applicable because the species is not a suitable target for conservation activities. S#S# — Range Rank A numeric range rank (e.g., S2S3) is used to indicate any range of uncertainty about the status of the species or community. Ranges cannot skip more than one rank (e.g., SU is used ...
Download as PDF; Printable version; ... Used to indicate conservation status according to the NatureServe conservation status categories. ...
The non-global N- and S- ranks, for National (N) and Subnational (state/province) assessments, are not supported by the taxobox system. status GX GH G1 G2 G3 G3 G4 G5 GU GNR TX TH T1 T2 T3 T3 T4 T5 TU status_ref {{Cite NatureServe}} Link Archived 2009-02-05 at the Wayback Machine Notes Does not cover range ranks, uncertain ranks, C qualifier.
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Flora of the United States by conservation status. Native plant−flora species classified by conservation status in the International Union for Conservation of Nature—IUCN Red List and NatureServe conservation status systems.