Migration routes,population status and important sites used by the globally threatened Black-faced Spoonbill(Platalea minor):a synthesis of surveys and tracking studies  

作　　者：Yiwen Chen Yat-tung Yu Fanjuan Meng Xueqin Deng Lei Cao Anthony David Fox 

机构地区：[1]School of Life Sciences,University of Science and Technology of China,Hefei 230026,China [2]State Key Laboratory of Urban and Regional Ecology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sci-ences,Beijing 100085,China [3]Hong Kong Bird Watching Society,Hong Kong SAR,China [4]University of Chinese Academy of Sciences,Beijing 100049,China [5]Department of Bioscience,Aarhus University,Kalø,Grenåvej 14,8410 Rønde,Denmark.

出　　处：《Avian Research》2021年第4期425-441,共17页鸟类学研究（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.31870369 and 31970433);China Biodiversity Observation Networks(Sino BON)。

摘　　要：Background:The Black-faced Spoonbill(Platalea minor)is a globally threatened species,nesting mainly in western Korea with smaller numbers breeding in Liaoning Province,China,and Far East Russia.Recent winter field surveys to estimate the species'population size were almost totally conducted in coastal areas,but tracking studies showed that some individuals now winter inland.To ensure its long-term survival,we need a more comprehensive assessment of the current distribution and abundance of the species.Methods:We combined the most recent count data and satellite tracking information to update existing informa-tion about the population abundance and distribution of the Black-faced Spoonbill at all stages of its annual life cycle,and how these have changed during 2004-2020.Results:Black-faced Spoonbills mainly breed on the west coast of the Korean peninsula,while immature birds show a wider summer distribution throughout Yellow Sea coastal areas,when a few remain on wintering sites in the south.Combined tracking results and mid-winter counts confirmed known wintering sites on the east and south coasts of China,but showed that the species also winters on wetlands in the Yangtze River floodplain and in Southeast Asia.During 2004-2020,counts of wintering birds in coastal habitats increased from 1198 to 4864,with numbers wintering on the island of Taiwan contributing most to the overall increase.Latest counts found 5222 in 2021.We also identify key wintering and stopover sites as well as their current conservation status.Conclusions:This study revised the known summering and wintering ranges of the Black-faced Spoonbill and assessed the conservation status of key sites based on a combination of field survey and satellite tracking data.We recommend prioritisation of further field research to identify and survey inland wintering areas in the Yangtze River floodplain and summering areas of immature birds.More tracking of adult individuals and birds during spring migration is necessary to fill these information gaps.We also

关 键 词：Black-faced Spoonbill Breeding distribution Coastal mudflats Conservation status Platalea minor Population abundance Winter distribution Yangtze River floodplain 

分 类 号：Q958.1[生物学—动物学]