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Data from: Ecological security patterns of migratory bird habitat from the perspective of circuit theory: A case study of Dalian

Duan, Yueying1

Published Jul 10, 2024; Updated Sep 11, 2024 on Dryad. https://doi.org/10.5061/dryad.w9ghx3fz4

Data files

Jul 10, 2024 version files 2.40 GB
Sep 11, 2024 version files 2.40 GB

Abstract

Dalian is an important "transit station" for migratory birds in the East Asian-Australasian flyway,located at the throat of the habitat of migratory birds in the Yellow (Bohai) Sea, and is an important stop,foraging and breeding place for migratory birds in the long-distance migration process.Based on the idea of Land-sea integration, this study aims to promote the improvement of the ecological environment of migratory bird habitats, enhance species diversity, and strengthen population exchange, identify the habitat security pattern in the "transit station" area, and put forward restoration suggestions. By selecting important habitat patches from the MSPA model, landscape connectivity analysis, and important bird habitats in Dalian, the random movement of birds was simulated through circuit theory, and the ecological corridors and important corridor nodes of migratory birds were identified to construct a habitat security pattern. The results of the study identified the ecological reserves, key areas, and areas to be restored in the study area. Among them, the areas to be restored are graded according to the importance of ecological security, and targeted restoration strategies are proposed. The habitat security pattern of migratory birds constructed in this paper can provide a scientific basis for the protection of migratory bird habitats.