Jiang Feng, Zhang Jingjie, Song Pengfei, Qin Wen, Wang Haijing, Cai Zhenyuan, Gao Hongmei, Liu Daoxin, Li Bin, Zhang Tongzuo
Key Laboratory of Adaptation and Evolution of Plateau Biota Northwest Institute of Plateau Biology, Chinese Academy of Sciences Xining Qinghai China.
University of Chinese Academy of Sciences Beijing China.
Ecol Evol. 2022 Nov 3;12(11):e9464. doi: 10.1002/ece3.9464. eCollection 2022 Nov.
Sanjiangyuan National Park (SNP), the first national park in China, is one of the most important biodiversity conservation areas in the Sanjiangyuan National Nature Reserve (SNNR) and even the world. The threatened ungulates play an irreplaceable role in maintaining the ecosystem diversity and stability in SNNR. Here, based on 1434 occurrence records of six ungulates, the maximum entropy model, with two different strategies, was utilized to determine the priority reserves. The results indicated that the priority reserves in SNNR was mainly located in and around SNP, which were mainly distributed in the middle east, middle west, and southwest of SNNR. Six ungulates shared preference for altitude ranging 4000-5000 m, the average annual temperature below -3.0°C, and average annual precipitation ranging 200-400 mm on meadow, steppe, and unused land. The proportion of high and medium suitable areas for ungulates in SNP was higher than that in SNNR. As the SNP is not contiguously spaced in space, and some core wildlife habitats are not included, it is suggested to optimize the functional areas and adjust the boundary range on the basis of the pilot scope of SNP, so as to enhance the integrity and connectivity of each functional area.
三江源国家公园是中国首个国家公园，是三江源国家级自然保护区乃至世界最重要的生物多样性保护区之一。受威胁的有蹄类动物在维持三江源国家级自然保护区的生态系统多样性和稳定性方面发挥着不可替代的作用。在此，基于6种有蹄类动物的1434条出现记录，采用两种不同策略的最大熵模型来确定优先保护区。结果表明，三江源国家级自然保护区的优先保护区主要位于三江源国家公园及其周边，主要分布在三江源国家级自然保护区的中东、中西部和西南部。6种有蹄类动物都偏好海拔4000 - 5000米、年平均气温低于-3.0°C、年平均降水量在200 - 400毫米的草地、草原和未利用土地。三江源国家公园内有蹄类动物的高适宜和中适宜区域比例高于三江源国家级自然保护区。由于三江源国家公园在空间上不连续，且未包含一些核心野生动物栖息地，建议在三江源国家公园试点范围的基础上优化功能区并调整边界范围，以增强各功能区的完整性和连通性。
