基于MaxEnt模型的辽西地区亚洲狗獾生境适宜性分析OA北大核心CSTPCD

In order to assess the habitat use and suitable habitat distribution pattern of Asian badgers(Meles leucurus)in western Liaoning,132 effective distribution points of this species obtained between 2018 and 2022 were used to generate the MaxEnt model.The results showed that topography,climate,vegetation,and water sources were the main environ-mental factors affecting the distribution of badger in western Liaoning,while human disturbance factors had little im-pact.The occurrence probability of badger in western Liaoning was the highest in the habitat with an altitude of 1 150 m,a slope of 40°,a NDVI of 85％,a maximum temperature(Bio5)of 24.5 ℃ in the hottest month,a temperature annual range(Bio7)of 39 ℃,and a distance of about 100 m from the river.The potential suitable habitat area for Asian badgers in western Liaoning is about 12 051.13 km2,accounting for 41.63％of the total study area.The distribution of highly suitable habitats was relatively concentrated,mainly in Lingyuan,Jianchang,and Suizhong in the southwest of the study area,and Kazuo and Chaoyang in the central part of the study area.The distribution of low suitability areas is scat-tered across all counties and cities in the study area,and the middle suitability area surrounds the high suitability area to form a transition area connecting the low suitability area.This study revealed the distribution pattern of suitable habitats and the dominant environmental factors limiting the distribution of badgers in western Liaoning,which will help clarify the ecological adaptability of badgers in different regions and provide more refined habitat distribution references for the management of Asian badgers in western Liaoning.