Liu Yang, Tan Yu-Lin, Li Yun-Meng, Ping Yan-Mei, He De-Ming, Zhang Gui-Liang, Sun Wei-Bang, Cai Lei
Yunnan Key Laboratory for Integrative Conservation of Plant Species with Extremely Small Populations, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, China.
State Key Laboratory of Plant Diversity and Specialty Crops, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, China.
Front Plant Sci. 2024 Dec 24;15:1520363. doi: 10.3389/fpls.2024.1520363. eCollection 2024.
The southeastern Yunnan is one of the most typical areas in China with karst landforms. The rich variety of vegetation types and plant diversity means that threatened status are also synchronized. Over the past 20 years, the comprehensive conservation team for plant species with extremely small populations (PSESP) has conducted in-depth field surveys in the region, combining relevant literature and conservation projects to compile a list of PSESP which including conservation and endangered status, conservation actions, and scientific research. Among all 116 PSESP, relatively abundant families include Cycadaceae (12 species), Magnoliaceae (17species) and Orchidaceae (18 species). Hekou and Malipo are the counties with the highest number, with 44 and 43 species respectively. A total of 81 species are included in the . For threatened status, 24 critically endangered (CR) species and 41 endangered (EN) species represent levels of severe threat. Up to now, 96 species have taken at least one protective measure from conservation, ex situ conservation, breeding or reintroduction/reinforcement. But there are still 20 species that have not taken any protective measures. Additionally, scientific research has been conducted on 86 species, but 30 species have not had any research initiated. The threat of human interference mainly including overcollection and habitat destruction, and the threats of limitations imposed on PSESP itself and natural disasters cannot be ignored. Our findings underscore the importance of integrated conservation strategies, in addition to the conservation, ex situ conservation, breeding or reintroduction/reinforcement, we should also pay attention to the scientific research, germplasm conservation, environmental education and ethnic culture. We also propose to consider establishing a professional karst botanical garden in southeastern Yunnan, and hope this study can offer valuable insights for the conservation of PSESP and biodiversity in southeastern Yunnan.
滇东南是中国喀斯特地貌最典型的地区之一。丰富多样的植被类型和植物多样性意味着受威胁状况也同步存在。在过去20年里，极小种群野生植物综合保护团队在该地区开展了深入的野外调查，结合相关文献和保护项目，编制了一份极小种群野生植物名录，其中包括保护和濒危状况、保护行动及科学研究情况。在所有116种极小种群野生植物中，相对丰富的科包括苏铁科（12种）、木兰科（17种）和兰科（18种）。河口县和麻栗坡县的极小种群野生植物数量最多，分别有44种和43种。共有81种被列入……对于受威胁状况，24种极危（CR）物种和41种濒危（EN）物种代表了严重威胁级别。截至目前，96种已采取了至少一种保护措施，包括就地保护、迁地保护、繁育或再引入/增强。但仍有20种未采取任何保护措施。此外，已对86种开展了科学研究，但仍有30种未启动任何研究。人为干扰的威胁主要包括过度采集和生境破坏，极小种群野生植物自身限制因素和自然灾害的威胁也不容忽视。我们的研究结果强调了综合保护策略的重要性,除了就地保护、迁地保护、繁育或再引入/增强外，我们还应关注科学研究、种质保存、环境教育和民族文化。我们还建议考虑在滇东南建立一个专业的喀斯特植物园，希望本研究能为滇东南极小种群野生植物及生物多样性保护提供有价值的见解。
