data deficient

American  

[day-tuh di-fish-uhnt, dat-uh, dah-tuh] / ˈdeɪ tə dɪˌfɪʃ ənt, ˈdæt ə, ˈdɑ tə /

adjective

Biology, Ecology.

1. (of a plant or animal species) lacking a properly assessed conservation status due to insufficient information on population and distribution, as categorized by the IUCN Red List: DD

   We are tracking the populations of data deficient fishes and mollusks.

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Etymology

Origin of data deficient

First recorded in 1995–2000

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Example Sentences

See Examples For:

data deficient

Currently, about one in seven species are classified as data deficient by the International Union for Conservation of Nature.

From Science Daily ● Oct. 26, 2023

The killer whale, for example, happens to be labeled data deficient.

From The Verge ● Aug. 4, 2022

That’s a little over a third of all data deficient species, but Borgelt and his colleagues could only work with species for which they knew the geographic distribution of the animals.

From The Verge ● Aug. 4, 2022

But the numbers of many data deficient species and sub-species continue to dwindle – and how do you save a species if it hasn’t even been recognised?

From The Guardian ● Nov. 5, 2020

The International Union for the Conservation of Nature lists the viper dogfish as "data deficient" because so little is known about their populations.

From National Geographic ● Jan. 11, 2018

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