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. 2021 Feb 23;8(7):nwab032. doi: 10.1093/nsr/nwab032

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© The Author(s) 2021. Published by Oxford University Press on behalf of China Science Publishing & Media Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 3. — Trends in IUCN listings of threatened species in China. (A) Changes in the threatened ranks of gymnosperms, angiosperms, amphibians, reptiles, birds and mammals in China. The numbers at the end of bars were the numbers of species assessed. (B) Red List Index for gymnosperms, angiosperms, amphibians, reptiles, birds and mammals in China. The first assessment was in 2004, and the second in 2013 for plant species and 2015 for animal species. Red List Index is an indicator of overall extinction risk for a set of species. It is used to track meaningful trends in biodiversity status simply by looking at overall changes in threat status of the same set of species between updates [31].