Diversity, distribution, and conservation of rare and endangered plant species in Jiangsu Province

doi:10.17520/biods.2021335

Abstract

Abstract:

Aims: It is crucial to assess the endangered category for national key protected and endangered wild plants when making scientific protection strategies. The purpose of this study is to identify the diversity, species distribution, and threatened degree of rare and endangered plants in Jiangsu Province, China.

Methods: Based on the data from the second survey of protected wild plant resources in Jiangsu Province (2012-2018) and related investigations in recent years, we examined species diversity and evaluated the threatened status of these endangered species in light of the IUCN Red List Category and Criteria (2012).

Results: The results showed that: (1) 41 endangered species belonged to national key protected and endangered wild plants in Jiangsu, and they could be divided into 7 categories. There were 2 species of Regional Extinction (RE), accounting for 4.88% of the total species. There were 10 Critically Endangered (CR) species, 6 Endangered (EN), 13 Vulnerable (VU), 2 Near Threatened (NT), 2 Least Concern (LC), and 6 Data Deficiency (DD), accounting for 24.39%, 14.63%, 31.71%, 4.88%, 4.88%, and 14.63% of the total species, respectively. The majority of them fell into threatened species, including CR, EN, and VU, accounting for 70.73% of the total species. (2) It was suggested that 74 species of wild plants belonging to 62 genera and 40 families should be protected in Jiangsu Province. The majority of them were endangered species, up to 74.32%. The high number of endangered species may be primarily ascribed to tremendous environmental pressure resulting from high human populations in Jiangsu, changes in production practices and land use patterns in the past decades, and low awareness of environmental publicity and education.

Conclusion: We propose: (1) to formulate the list of provincial key protected wild plants in Jiangsu Province as soon as possible; (2) to strengthen scientific research, by combing in situ and ex situ conservation for some critically endangered species, by carrying out reintroduction, near situ conservation and dynamic monitoring; (3) to enhance public awareness of biodiversity, protection, and management.

Key words: IUCN Red List, endangered plants, threat categorization, spatial conservation, Jiangsu

Guangfu Zhang, Tianshi Xiong, Ting Sun, Kaidi Li, Liyuan Shao. Diversity, distribution, and conservation of rare and endangered plant species in Jiangsu Province[J]. Biodiv Sci, 2022, 30(2): 21335.

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URL: https://www.biodiversity-science.net/EN/10.17520/biods.2021335

https://www.biodiversity-science.net/EN/Y2022/V30/I2/21335

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