Register      Login
Emu Emu Society
Journal of BirdLife Australia
RESEARCH ARTICLE

Changes in the spatial distribution of migratory shorebirds along the Shanghai shoreline, China, between 1984 and 2004

Zhen-ming Ge A , Tian-hou Wang A B , Xiao Zhou A , Kai-Yun Wang A and Wen-yu Shi A
+ Author Affiliations
- Author Affiliations

A School of Life Sciences, Shanghai Key Laboratory of Urbanization and Ecological Restoration, East China Normal University, 3663 N Zhongshan Road, Shanghai, 200062, Peoples Republic of China.

B Corresponding author. Email: thwang@bio.ecnu.edu.cn

Emu 107(1) 19-27 https://doi.org/10.1071/MU05048
Submitted: 10 September 2005  Accepted: 12 October 2006   Published: 26 February 2007

Abstract

Migratory shorebirds in the East Asian–Australasian Flyway use the Shanghai shoreline as an important stopover site. Until recently, little was known about the influence of intensive reclamation on the shorebirds using this shoreline. We investigated the distribution of shorebirds in 10 fixed-sample sites in 2004–05 and compared the results with those of surveys at the same sites in 1984–85; we also examined physical changes in intertidal wetlands and coastal land-use at these sites. In 2004–05, 25 shorebird species were recorded, and the seasonal abundance of shorebirds in 2004–05 was similar to that recorded in the 1980s, but the number of species observed in both northern and southern migration periods declined between 1984–85 and 2004–05 even though the overall numbers of birds had not. Since the 1980s, over 500 km2 of intertidal mudflats along the Shanghai shoreline have been reclaimed, though ~190 km2 of these mudflats have been reclaimed but not yet developed and could be considered fairly high-value habitat for shorebirds. Most of the shorebirds that were observed were on these reclaimed but undeveloped mudflats. The physical characteristics of the mudflats had been transformed over the preceding two decades through reclamation, siltation, erosion and, at some sites, artificial vegetation planting, and two habitat variables – the width of mudflats and the width of the upper intertidal zone – significantly affect the abundance and distribution of shorebirds. We discuss some implications for conservation related to rules and guidelines for reclamation of wetlands, and make recommendations on land-use procedures for artificial wetlands.


Acknowledgements

This study was funded by the Shanghai Technology & Science Administration Key Project (Code Nos 05DZ12005 and 06DZ12303), and the National Technology Support Program (Code Nos 2006BAC01A14). We thank Associate Professor Yi Jian-Fang for providing the Landsat images and measures of land-use; and Mr Phil Straw, Dr Leslie Dierauf, Ms Jennifer Spencer and Mr Mark Barter for assisting with editing. We also thank them and two anonymous referees for providing helpful comments on this manuscript.


References

Barter M. (2002). ‘Shorebirds of the Yellow Sea: Importance, Threats and Conservation Status.’ Wetlands International Global Series 9. (International Wader Study Group: Canberra.) www.deh.gov.au/biodiversity/migratory/waterbirds/yellow-sea/index.html

Barter, M. , and Wang, T. H. (1989). Can waders fly non-stop from Australia to China? Stilt 17, 36–39.
Crossref | GoogleScholarGoogle Scholar | Chen J. Y. (1988). ‘The General Investigation Reports of Coasts and Resources in Shanghai Bay.’ (Scientific & Technical Publishers: Shanghai.) [In Chinese]

Chen Y. W., and Li T. R. (1979). Land hydrology. In ‘Physical Geography of China’. (Eds Shanghai Normal University.) pp. 61–87. (People’s Education Press: Beijing.) [In Chinese]

Chen, Z. Y. , Song, B. P. , Wang, Z. H. , and Cai, Y. L. (2000). Late Quaternary evolution of the sub-aqueous Yangtze Delta, China: sedimentation, stratigraphy, palynology, and deformation. Marine Geology 162, 423–441.[In Chinese]
Crossref | GoogleScholarGoogle Scholar | Cogswell H. L. (1977). ‘Water Birds of California.’ (University of California Press: Berkeley, CA.)

Collazo, J. A. , O’Hara, D. A. , and Kelly, C. A. (2002). Accessible habitat for shorebirds: factors influencing its availability and conservation implication. Waterbirds 25, 13–24.
Crossref | GoogleScholarGoogle Scholar | Lu W. D. (2000). ‘Statistical Analysis of SPSS for Windows.’ (Publishing House of Electronics Industry: Beijing.) [In Chinese]

Ma M., Lu J. J., and Cui Z. X. (1998). The status of bird hunting in Shanghai area. In ‘The Third Pro-seminar Symposium of the Science Between the Two Banks of the Strait’. (Eds Taiwan Aves Society.) pp. 349–356. (Taiwan Aves Society: Taiwan.) [In Chinese]

Ma, Z. J. , Jing, K. , Tang, S. M. , and Chen, J. K. (2002a). Shorebirds in the eastern intertidal areas of Chongming Island during the 2001 northward migration. Stilt 41, 6–10.
Crossref | GoogleScholarGoogle Scholar | Maff L., Oviedo G., and Larsen P. B. (2000). ‘Indigenous and Traditional Peoples of the World and Eco-region Conservation: An Integrated Approach to Conserving the World’s Biological and Cultural Diversity.’ WWF Research Report No. 145. (World Wide Fund for Nature: Gland, Switzerland.)

Minton, R. S. (1982). Report on wader expedition to north West Australia in August / September 1981. Stilt 2, 14–26.
Crossref | GoogleScholarGoogle Scholar | Shanghai Agriculture and Forestry Administration (2004). ‘The Terrestrial Wildlife Resources of Shanghai [M].’ (Shanghai Sciences and Technology Press: Shanghai.) [In Chinese]

Taft, O. W. , Colwell, M. A. , Isola, C. R. , and Safran, R. J. (2002). Waterbird responses to experimental drawdown: implications for the multispecies management of wetland mosaics. Journal of Applied Ecology 39, 987–1001.
Crossref | GoogleScholarGoogle Scholar | Tang S. X., and Wang T. H. (1995). ‘Waterbird Hunting in East China.’ (Asian Wetland Bureau: Kuala Lumpur.)

Tulp, I. , McChesney, S. , and de Goeij, P. (1994). Migratory departures of waders from north-western Australia: behaviour, timing and possible migration routes. Ardea 82, 211–221.
Crossref | GoogleScholarGoogle Scholar | Wang S. N. (2003a). ‘Wetland Utilization and Protection.’ (Science & Technology Press: Shanghai.) [In Chinese]

Wang, T. H. , and Qian, G. Z. (1987). Analysis on the character of biological community in the intertidal mud flat of the Changjiang Estuary and the north Hangzhou Bay. Chinese Journal of Ecology 6(2), 35–38.[In Chinese]
Crossref | GoogleScholarGoogle Scholar | Wang T. H., and Qian G. Z. (1988). ‘The Waders in the Changjiang Estuary and the Hangzhou Bay.’ (East China Normal University Publishing House: Shanghai.) [In Chinese]

Wang T. H., Wen X. J., Shi J. Y., Su Y. X., and Yang L. N. (2003). ‘HSBC Wetland Management Training Manual.’ (World Wide Fund for Nature Reserve: Hong Kong.)

Wang, Y. Z. (2003b). Several issues in comprehensive harnessing and development plan of Yangtze River mouth. Yangtze River 34(5), 11–15.[In Chinese]
Crossref | GoogleScholarGoogle Scholar | Xie Y. M., Du D. C., Sun Z. H., and Yu W. D. (2004). ‘Shanghai Wetlands.’ (Science & Technology Press: Shanghai.) [In Chinese]

Yang, S. L. , Zhao, Q. Y. , and Igor, M. B. (2002). Temporal variation in the sediment load of the Yangtze River and the influences of human activities. Journal of Hydrology 263, 56–71.
Crossref | GoogleScholarGoogle Scholar |

Yang, S. L. , Zhu, J. , and Zhao, Q. Y. (2003). A preliminary study on the influence of Changjiang River sediment supply on subaqueous delta. Acta Oceanologica Sinica 25(5), 83–91.[In Chinese]
Crossref | GoogleScholarGoogle Scholar |

Yuan, X. Z. , and Lu, J. J. (2001). Influence of diking on the benthic macro-invertebrate community structure and diversity in the southbank of the Changjiang Estuary. Acta Ecologica Sinica 21(10), 1642–1647.[In Chinese]
Crossref | GoogleScholarGoogle Scholar |