Journal of Ecology and Rural Environment ›› 2021, Vol. 37 ›› Issue (6): 778-785.doi: 10.19741/j.issn.1673-4831.2020.0822

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Habitat Suitability Evaluation and Corridor Design of Muntiacus crinifrons in Qianjiangyuan National Park

LI Qiong-wen1, LI Shuang2, CAO Ming-chang2, XU Hai-gen2   

  1. 1. School of Geographical Science, Nanjing University of Information Science and Technology, Nanjing 210044, China;
    2. Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China
  • Received:2020-10-02 Online:2021-06-25 Published:2021-06-24

Abstract: Muntiacus crinifrons, the national first-class protected animal, whose habitat has been destroyed, is now in danger due to human disturbance. Therefore, it is very important to identify the key areas of suitable habitat for Muntiacus crinifrons and construct habitat corridors among the broken habitats. This paper took Qianjiangyuan National Park as the research area, based on the data from distribution point and environmental variables of Muntiacus crinifrons. The habitat suitability of Muntiacus crinifrons was evaluated by MaxEnt model. The corridor was designed with Linkage Mapper corridor design model and minimum cumulative resistance model (MCR). Results show that the accuracy of MaxEnt model is excellent in predicting the potential habitat, with an AUC value of 0.959 and 0.943 for model training and testing. The suitable habitat area is 44.78 km2, which only accounts for 17.8% of the total area of national park. The main environmental factors that affect the habitat distribution are the distance from broad-leaved forest (29.4%), as well as that from water source (15.2%) and the altitude (19.2%). Three potential habitat corridors are designed in the selected key areas, which are mainly located in Liyangtian village, Tianfan village, Kukeng village and Xiachuan village. The minimum width of the corridor is 766 m and the total length is 12.70 km, which provides scientific basis for the protection of Muntiacus crinifrons.

Key words: Muntiacus crinifrons, maximum entropy model (MaxEnt), habitat suitability, habitat corridor, Qianjiangyuan National Park

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