Prediction of Potential Habitat Area of Xyleborinus saxesenii Based on Optimal MaxEnt Model
Asian ambrosia beetle(Xyleborinus saxesenii)is a crucial quarantine insect species worldwide.This beetle creates holes in woody trees and introduces pathogens that cause severe losses due to tree mortality,posing considerable threats to the forestry safety of China.Therefore,accurate prediction of the potential habitat area of X.saxesenii is essential for the relevant forestry department to implement effective monitoring and early control strategies.Using the optimal Max-Ent model,the current and future potential habitat area of X.saxesenii worldwide and in China were predicted via 593 spe-cies distribution records.Meanwhile,the changes in the geographic distribution of X.saxesenii under the abovementioned conditions were exclusively compared by using the distribution area ratio and the degree of habitat centroid transfer in China.The results showed that the global distribution area of X.saxesenii was mainly concentrated in large parts of Eu-rope,the western mountainous regions and east coasts of North America,the southeast coast of South America,the south-east coast of Oceania,and the east of Asia under the current climate scenario.For the potential distribution in China,X.saxesenii was mainly encountered in the south of Hu's line under the current climate scenario,and the habitat centroid gradually moved to the northwest of China under future climate scenarios.In summary,this study contributes to further con-trolling the dispersal of X.saxesenii,especially if there is a middle and high suitable area at the global scale and in China.
Xyleborinus saxeseniiMaxEnt modelpotential suitable distributionhabitat centroidhierarchical control