population status

Data deficient (DD) animals

1933 species

A data deficient (DD) species is one that has been categorised by the International Union for Conservation of Nature (IUCN) as offering insufficient information 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 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"
This is a part of the Wikipedia article used under the Creative Commons Attribution-Sharealike 3.0 Unported License (CC-BY-SA). The full text of the article is here → https://en.wikipedia.org/wiki/Data_deficient 
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A data deficient (DD) species is one that has been categorised by the International Union for Conservation of Nature (IUCN) as offering insufficient information 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 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"
This is a part of the Wikipedia article used under the Creative Commons Attribution-Sharealike 3.0 Unported License (CC-BY-SA). The full text of the article is here → https://en.wikipedia.org/wiki/Data_deficient 
Source