Modelling the Spatial Distribution of Wildlife Animals Using Presence and Absence Data
Hyuk-Soo Kwon1, Baek-Jun Kim1, Gab-Sue Jang2
1Nationаl Institute of Ecology, Seocheon, Chungnаm 33657, South Korea
2Yeungnаm University, Gyeongsan, Gyeongbuk 38541, South Korea
Keywords: Species distribution model, General additive model, GRASP, Habitat preference
Abstract
This study was conducted to analyze the habitat preference of six major mammals for various environmental factors based on 100 random points within a mountain area in South Korea. In-situ presence and absence data for the mammals were surveyed and collected, and twelve explanatory variables related to topography, water, greenness, and anthropogenic influence were applied to create a habitat distribution model. The best combination of variables was determined using Moran’s I coefficients and Akaike criteria information, and applied to estimate the habitat preference for each species using GRASP v.3.0. The predictive map showed that wildlife animals in this study were mainly categorized into two groups: Group I (Korean squirrel, Sciurus vulgaris , mole, Talpa micrura and water deer, Hydropotes inermis ), showed equal preference for all mountainous areas; Group II (weasel, Mustela sibirica , leopard cat, Felis bengalensis and raccoon dog, Nyctereutes procyonoides ) showed different preferences in a mountain.
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