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Scientia Silvae Sinicae ›› 2024, Vol. 60 ›› Issue (8): 46-56.doi: 10.11707/j.1001-7488.LYKX20230642

• Technology and application of smart forestry and grassland • Previous Articles     Next Articles

Predicting the Distribution of Suitable Habitats for Oriental Storks Based on Satellite Tracking in Yellow River Delta

Lixia Chen1,2(),Feng Lu3,Hongxing Jiang2,Ge Sun2,Xiupeng Yue3,Yixuan Wang2,Tong Gao2,Xingbo Hu4,Changqing Ding1,*   

  1. 1. School of Ecology and Nature Conservation, Beijing Forestry University Beijing 100083
    2. Ecology and Nature Conservation Institute of Chinese Academy of Forestry Key Laboratory of Biodiversity Protection of National Forestry and Grassland Administration Beijing 100091
    3. Yellow River Delta National Nature Reserve Management Committee Dongying 2570914
    4. Beijing Shoufa Tianren Ecological Landscape Co., Ltd. Beijing 102600
  • Received:2023-12-26 Online:2024-08-25 Published:2024-09-03
  • Contact: Changqing Ding E-mail:chenlixia9530@163.com

Abstract:

Objective: Based on locations tracked by satelite of Oriental Stork born in the Yellow River Delta, the nation-wide distributions of suitable habitats in both summer and winter were predicted. This study was intended to provide an important scientific basis for the collaborative conservation of Oriental Stork. Method: Using the satellite tracking data of 80 Oriental Storks in the Yellow River Delta of Shandong Province between 2016 and 2022, 5 283 habitat locations in summer and 4 730 habitat locations in winter were selected through spatial auto-correlation analysis. The MaxEnt model was employed to predict the potential suitable habitat distribution for Oriental Storks in both summer and winter, and to rank the suitability habitats. Result: The analysis revealed that the MaxEnt predictions are satisfactory, with AUC values exceeding 0.8 for both the summer (0.866) and winter (0.838). Six environmental factors such as elevation, isotherm, distance to lakes and rivers, average daily temperature range, precipitation seasonality and the land-use type—significantly influence the distribution of Oriental Storks in the Yellow River Delta. In summer, there was a highly suitable habitat area of 14.75×104 km2 for Oriental Storks, constituting 13.01% of the total suitable area. These habitats were predominantly distributed in the Songnen Plain (57.52%), the Bohai Bay (17.50%), the Liaohe Plain (14.94%). The main habitat types in summer included wetlands (35.30%), cropland (33.74%), water (12.43%). The highly suitable winter habitat for Oriental Storks covered an area of 11.63×104 km2, constituting 11.62% of the total suitable area. It was primarily situated in the Middle-Lower Yangtze Plains (49.02%), Hongze Lake of the Huaihe River basin (23.75%), the Bohai Bay (11.52%). The main winter habitats included wetlands (40.56%), cropland (29.68%), water (18.45%). The overlapping area of highly suitable habitat in summer and winter was 2.13×104 km2, primarily concentrated in the Bohai Bay (59.81%), the coastal area of Shandong Peninsula (23.24%) and Jiangsu (9.34%). Conclusion: The results indicate that the suitable habitat in summer extends to Songnen Plain, Sanjiang Plain and Liaohe Plain, challenging conventional understanding about the fledging dispersal for Oriental Storks. for Oriental Storks. This study offers a crucial scientific foundation for the collaborative conservation of this species.

Key words: Oriental Stork, MaxEnt model, suitable habitat, Yellow River delta

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