Yellow lampmussel (Lampsilis cariosa) COSEWIC assessment and status report: appendix

Appendix 1. Status Code Definitions

The conservation rank of an element known or assumed to exist within a jurisdiction is designated by a whole number from 1 to 5, preceded by a G (Global), N (National), or S (Subnational) as appropriate. The numbers have the following meaning: 1 = critically imperiled, 2 = imperiled, 3 = vulnerable to extirpation or extinction, 4 = apparently secure, 5 = demonstrably widespread, abundant, and secure, X = presumed extirpated, H = possibly extirpated, R = reported,? = unranked.

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