MaxEnt Modeling for Predicting Suitable Habitat for Endangered Tree Keteleeria davidiana (Pinaceae) in China

Understanding species response to climate change is essential for the conservation and utilization of resources under rapid in future. In this study, present future suitable distribution range Keteleeria davidiana, a tertiary relict gymnosperm, was predicted based on maximum entropy model (MaxEnt). A total 158 occurrence records were collected after removing duplicated records. Six low-correlation variables used predict distributions. The three key factors that affect K. davidiana temperature seasonality (34.96%), mean coldest quarter (28.30%) precipitation (13.58%). most zone between 377.4 843.4. highly area located mountainous regions central southeast China, which accounted 13.39% whole study area. With warming future, estimated decrease by 35% (SSP1-2.6 scenario) or 85% (SSP5-8.5 scenario). This has provided sufficient scientific basis situ ex davidiana.