MinJie Deng

and 5 more

Global climate change and human activities have led to the loss and fragmentation of habitats for wild orchids in recent years. Liparis campylostalix is widely distributed in northeast China and is an important component of orchids resources in the region. Previously, we conducted a field survey on the distribution of L. campylostalix in northeast China and obtained 244 distribution sites. In this study, the Maxent model, ENMTools and ArcGIS were utilized to predict the potential habitat of L. campylostalix in China based on its geographical distribution and 19 environmental factors, which will be of great significance for the utilization and biodiversity conservation of this species. The results showed that under the current climate scenario, L. campylostalix was mainly distributed in Liaoning, Jilin and Shandong provinces of China, with a total suitable growth area of approximately 1.845 million square kilometers and a distribution center located in Sichuan province. The four key environmental variables affecting the distribution of L. campylostalix were annual precipitation (Bio12, contribution rate 27.9%), temperature seasonality (Bio4, contribution rate 19.4%), warmest season precipitation (Bio18, contribution rate 11.9%), and annual average temperature (Bio1, contribution rate 8.4%), accounting for 67.6% of the total contribution. Under global warming conditions in the future, the potential suitable area for L. campylostalix would show an expanding trend. It would radiate from the edge of the current suitable area to the surrounding areas, while the distribution center still located in Sichuan province and not changed. The results of this study could provide theoretical reference for the conservation of orchids biodiversity.