Abstract
Exploring how suitable habitat and population size of Red-crowned crane Grus japonensis respond to long-term coastal reclamation plays an important role in species conservation and in related coastal management. Here, we combined field data for suitable habitats and wintering population size of G. japonensis with GIS-based information to elucidate the influence of long-term coastal reclamation on this species and related conservation efforts. During 1975–2013, the intensity and spatial extent of coastal reclamation exhibited a temporal change, increasing dramatically in 1975–2000 and lessening considerably in 2000–2013. Under the pressure of long-term coastal reclamation, the decline of suitable habitat of G. japonensis was affected by increasing levels of human disturbance and decreasing availability of natural habitat. Moreover, the wintering population size of G. japonensis exhibited a decreasing trend during 1975–2013 as a result of the decreasing availability of fish ponds, bare tidal flats, and increasing spatial extent of residential areas and P. australis habitat, which were indirectly affected by long-term reclamation. Our results highlight the importance of considering the long-term effects of coastal reclamation on both populations and suitable habitat of G. japonensis, which should be considered in future plans for coastal management and conservation.
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Acknowledgements
The National Basic Research Program of China funded this research (Grant No. 2013CB430400). The National Key R&D Program of China (Grant No. 2017YFC0505800) and The National Basic Research Program of China funded (Grant No. 2013CB430400) this research.
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Guest editors: Shuqing An, Jennifer Ann Davis & Dong Xie / Coastal Wetlands: Services, Uses and Conservation
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Li, N., Wang, Z., Xia, L. et al. Effects of long-term coastal reclamation on suitable habitat and wintering population size of the endangered Red-crowned Crane, Grus japonensis . Hydrobiologia 827, 21–29 (2019). https://doi.org/10.1007/s10750-017-3341-x
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DOI: https://doi.org/10.1007/s10750-017-3341-x