Habitat Suitability Evaluation of Four Ungulate Species in Baishuihe National Nature Reserve Based on MaxEnt Model

MaxEnt model was used to evaluate habitat suitability of four ungulate protected species in Baishuihe National Nature Reserve. The results were as follows: (1) After 20 repetitions, the AUC values of training sets of Impala, Iguana, forest musk deer and Antelope were 0.962, 0.947, 0.924 and 0.945, respectively; (2) The suitable habitats for Impala, Iguana, forest musk deer and Antelope accounted for 14%, 27%, 25% and 24% of the total area of the reserve respectively, while the sub-suitable habitats account for 27%, 19%, 35% and 34% of the total area of the reserve, and the unsuitable habitats accounted for 59%, 54%, 40% and 42% of the total area of the reserve respectively. (3) The three largest environmental factors that contributed the most to Impala were slope aspect, slope and deciduous thickets. To Iguana, the three factors were bamboo forest, cultivated bamboo forest, and deciduous thickets. To forest musk deer, the three factors were slope, deciduous shrub and bamboo forest. And to Antelope, the three factors were slope aspect, bamboo forest and deciduous broad-leaved forest.