原始分布数据、环境变量和 R 代码

This study utilized extensive specimen data and detailed geographic and environmental information, applying the MaxEnt model to predict the distribution of F. cirrhosae bulbus. The key findings are as follows: (1) F. przewalskii and F. delavayi tend to migrate to higher altitudes, while F. taipaiensis is shifting to lower altitudes. (2) Among different species of F. cirrhosae bulbus, altitude, temperature, and precipitation significantly influence distribution, with altitude being the most critical factor. (3) Under the SSP585 scenario, the suitable areas of F. cirrhosa, F. przewalskii, and F. taipaiensis were contracting, while those of F. unibracteata and F. delavayi were rising. Also, the centroids of F. cirrhosa and F. przewalskii shifted slightly northeastward, F. unibracteata’s shifted southward, and F. delavayi and F. taipaiensis’s shifted northwestward.