Abstract
At present, a large amount of species are facing with serious threats even dying out. Corresponding protective measures set standards for grading precious and endangered animals and plants. Therefore, we need to know the precious and endangered medicinal animals and plants and the currently used standards for grading them. This chapter will firstly introduce the IUCN Red List of Threatened Species Categories and Criteria, CITES appendix standards, U.S. Endangered Species Act, endangered species criteria, grading standards for China Plant Red Data Book, grading standards for the endangered of red list, and the national directory standards of wild animals under special protection.
Published Version
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