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Provincial Conservation Status

Provincial Status applies to a species' or ecological community's conservation status in British Columbia. The number in parenthesis is the year the status rank was last reviewed.
The status ranks have the following meaning:

SX = presumed extirpated
SH = historical (species)/possibly extirpated (communities)
S1 = critically imperiled
S2 = imperiled
S3 = special concern, vulnerable to extirpation or extinction
S4 = apparently secure
S5 = demonstrably widespread, abundant, and secure.
NA = not applicable
NR = unranked
SU = unrankable

For a full discussion of the ranking sytem, how ranks are assigned and what all ranks mean, visit the NatureServe site.