| Title |
Analysis of Endangered Fish Distribution Using an Ensemble Hydro-ecological Model |
| Authors |
우소영(Woo, Soyoung);장선우(Chang, Sun Woo);정일문(Chung, Il-Moon) |
| DOI |
https://doi.org/10.12652/Ksce.2025.45.6.0687 |
| Keywords |
종분포모형; 수문-생태; 앙상블; 멸종위기종; 출현 적합도 Species distribution model; Hydrologic-ecological; Ensemble; Endangered species; Occurrence suitability |
| Abstract |
Recent environmental changes due to climate change and urbanization are threatening the structure and function of aquatic ecosystems, and biodiversity loss and ecosystem collapse are recognized as important long-term risk factors worldwide. In particular, aquatic ecosystems are not only habitats for freshwater species but also provide various ecosystem services, which are directly related to the quality of human life. Thus, it is important to maintain stream aquatic ecosystem health. This study aimed to predict the distribution of the endangered freshwater fish (Gobiobotia naktongensis Mori) in the Nakdong River Basin by applying an integrated hydro-ecological modeling approach. The occurrence data of the endangered species were resampled to reduce data imbalance. And then we evaluated the performance of single species distribution models (GLM, RF, GBM, XGBoost, KNN, and MaxEnt) and an ensemble model using AUC, TSS, and balanced accuracy. The spatial distribution of ‘Gobiobotia naktongensis Mori’ in Nakdong river watershed were predicted by the best-performing model. The results demonstrate that the integrated hydro-ecological modeling approach can quantitatively assess potential habitat of endangered species. Also this study would be expected to provide a valuable tool
for watershed-scale policy development and biodiversity conservation. |