Data Deficient

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Conservation status
the risk of extinction
Extinction

Extinct
Extinct in the Wild

Threatened

Critically Endangered
Endangered
Vulnerable
Threatened

Lower risk

Conservation Dependent
Near Threatened
Least Concern
Domesticated

See also

World Conservation Union
IUCN Red List


Data Deficient (DD) is a category applied by the IUCN to a species when the available information is not sufficient for a proper assessment of conservation status to be made. This does not necessarily indicate that the species has not been extensively studied; but it does indicate that little or no information is available on the abundance and distribution of the species. The IUCN recommends that care be taken to avoid classing species as Data Deficient when the absence of records may actually indicate dangerously low abundance: "If the range of a taxon is suspected to be relatively circumscribed, if a considerable period of time has elapsed since the last record of the taxon, threatened status may well be justified."[1]

[edit] Notes

  1. ^ "The Categories," in IUCN (1994).

[edit] References

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