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Coastal wetlands in Lianyungang,Jiangsu Province,China:probably the most important site globally for the Asian Dowitcher(Limnodromus semipalmatus)

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Avian Research 2021年第3期12卷 364-374页

作者： Ziyou Yang Jing Li Yongxiang Han Chris J.Hassell Kar-Sin Katherine Leung David S.Melville Yat-tung Yu Lin Zhang Chi-Yeung Choi Spoon-Billed Sandpiper(Shanghai)Environmental Protection Technology Co. Ltd.Shanghai 201100China Lianyungang xugou primary school Lian-yungang 222042China Global Flyway Network PO Box 3089BroomeWA 6725Australia Hong Kong Waterbirds Ringing Group Mai Po Nature ReserveHong KongChina 1261 Dovedale Road RD 2 WakefieldNelson 7096New Zealand Hong Kong Bird Watching Society 7CV Ga Building532 Castle Peak RoadLai Chi KokKowloonHong KongChina school of Environmental Science and Engineering Southern University of Science and TechnologyShenzhen 518055China

Background:Despite an increasing number of surveys and a growing interest in birdwatching,the population and distribution of Asian Dowitcher(Limnodromus semipalmatus),a species endemic to the East Asian-Australasian and Central Asian Flyways,remains poorly understood,and published information about the species is largely *** boreal spring 2019,over 22,432 Asian Dowitchers were recorded in a coastal wetland at Lianyungang,Jiangsu Prov-ince,China,constituting 97.5%of its estimated global ***:In 2019 and 2020,we conducted field surveys at Lianyungang to determine the numbers of Asian Dow-itchers using the area during both southward and northward *** also assessed the distribution and abun-dance of Asian Dowitchers elsewhere along the China coast by searching literature and consulting expert ***:The coastal wetlands of Lianyungang are the most important stopover site for Asian Dowitchers during both northward and southward migrations;they supported over 90%of the estimated global population during north-ward migration in two consecutive years(May 2019 and 2020).This area also supported at least 15.83%and 28.42%(or 30.74%and 53.51%using modelled estimates)of the global population during southward migration in 2019 and 2020 *** wetlands in the west and north of Bohai Bay also have been important stopover sites for the species since the *** comprehensive,long-term monitoring data are lacking,available evidence sug-gests that the population of the species may have ***:The high concentration of Asian Dowitchers at Lianyungang during migration means the species is highly susceptible to human disturbances and natural stochastic *** coastal wetlands of Lianyungang should be protected and potentially qualify for inclusion in China’s forthcoming nomination for World Heritage listing of Migratory Bird Sanctuaries along the Coast of Yellow Sea-Bohai Gulf of China(Phase II)in ***

关键词： Lianyungang Limnodromus semipalmatus Shorebird Stopover ecology Yellow Sea World Heritage

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Identification of coastal wetlands of international importance for waterbirds:a review of China Coastal Waterbird Surveys 2005–2013

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Chinese Birds 2015年第3期6卷 153-168页

作者： Qingquan Bai Jianzhong Chen Zhihong Chen Guotai Dong Jiangtian Dong Wenxiao Dong Vivian Wing Kan Fu Yongxiang Han Gang Lu Jing Li Yang Liu Zhi Lin Derong Meng Jonathan Martinez Guanghui Ni Kai Shan Renjie Sun Suixing Tian Fengqin Wang Zhiwei Xu Yat-tung Yu Jin Yang Zhidong Yang Lin Zhang Ming Zhang Xiangwu Zeng Forestry Bureau of Dandong Tianjin Birdwatching Society Xiamen Birdwatching Society Shenzhen Birdwatching Society Management Office of Guangdong Neilingding–Futian National Nature Reserve Shanghai Huaxia Wildlife Travel Limited The Hong Kong Bird Watching Society xugou primary school Kadoorie Conservation China Kadoorie Farm & Botanic Garden Corporation Spoon-billed Sandpipers in China State Key Laboratory of Biocontrol and College of Ecology and Evolution Xiamen Costal Wetlands and Birds Research Center Department of Life Science Cangzhou Normal University 14 bis rue des Temples45240 La FertéSaint AubinFrance Fujian Birdwatching Society Management Office of Yellow River Delta National Nature Reserve Guangxi Mangrove Research Center Tianjin Natural History Museum Shanghai Wildbird Society Panjin Birdwatching Society Panjin Maternal and Child Care Service Centre Haifeng Nature Reserve

Background:China's coastal wetlands belong to some of the most threatened ecosystems *** loss and degradation of these wetlands seriously threaten waterbirds that depend on ***:The China Coastal Waterbird Census was organized by volunteer birdwatchers in China's coastal *** were surveyed synchronously once every month at 14 sites,as well as irregularly at a further 18 sites,between September 2005 and December ***:A total of 75 species of waterbirds met the 1 % population level Ramsar listing criterion at least once at one *** number of birds of the following species accounted for over 20 % of the total flyway populations at a single site:Mute Swan(Cygnus olor),Siberia Crane(Grus leucogeranus),Far Eastern Oystercatcher(Haematopus osculans),Bar-tailed Godwit(Limosa lapponica),Spotted Greenshank(Tringa guttifer),Great Knot(Calidris tenuirostris),Spoon-billed Sandpiper(Calidris pygmeus),Saunders' s Gull(Larus saundersi),Relict Gull(Larus relictus),Great Cormorant(Phalacrocorax carbo),Eurasian Spoonbill(Platalea leucorodia),Black-faced Spoonbill(Platalea minor) and Dalmatian Pelican(Pelecanus crispus).A total of 26 sites supported at least one species of which their number met the1 % ***-two species met the 1 % criterion in the Yellow River Delta,Shandong;29 at the Cangzhou coast,Hebei and 26 species at the Lianyungang coast,***:The results highlight the international importance of China's coastal wetlands for *** study also demonstrates that participation of local birdwatchers in waterbird surveys results in data that are invaluable not only for understanding the current status of waterbirds in China's coastal regions but also for waterbird conservation and management.

关键词： 1 % criterion Citizen science Coastal wetlands Ramsar site Waterbirds

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