Data deficient

Lower Risk
Lower Risk
Near Threatened (NT); Conservation Dependent (CD); Least Concern (LC);	(list); (list);
	Other categories
Data Deficient (DD); Not Evaluated (NE);	(list; )
	Related topics International Union for; Conservation of Nature (IUCN); IUCN Red List; NatureServe status; Lists of organisms by population;
	; Comparison of Red List classes above; and NatureServe status below;
	v; t; e;

A data deficient (DD)

distribution

of the species.

The IUCN recommends that care be taken to avoid classing species as "data deficient" when the absence of records may 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] (see also precautionary principle).

References

^ "The Categories", in IUCN (1983).

External links

IUCN (2001). "2001 Categories & Criteria (version 3.1)". 2014 IUCN Red List. Retrieved 2014-08-26.

[1] "The Categories", in IUCN (1983).

[1]

Lower Risk
Near Threatened (NT) Conservation Dependent (CD) Least Concern (LC)	(list) (list)
Other categories
Data Deficient (DD) Not Evaluated (NE)	(list )
Related topics International Union for Conservation of Nature (IUCN) IUCN Red List NatureServe status Lists of organisms by population
Comparison of Red List classes above and NatureServe status below
v t e

See also

References

External links