Composition and Habitat Use of Wintering Waterbirds Community in the Restoration Area of Jiangsu Yancheng Wetland National Nature Reserve for Rare Birds
The Jiangsu Yancheng Wetland National Nature Reserve for Rare Birds serves as an essential stopover and wintering ground for migratory birds along the East Asia-Australasian Flyway.During the wintering season from November 2022 to February 2023,a survey of waterbirds was conducted in the restoration area of the reserve's experimental zone.Basic data including waterbird number and community composition,as well as their habitat utilization,were collected.The results indicated that,during the wintering period,a total of 36 waterbird species(23 019 individuals)belonging to 7 orders and 12 families were recorded,with 4 national first-class and 3 second-class protected species in China.The globally endangered(EN)species Oriental White Stork(Ciconia boyciana),3 globally vulnerable(VU)species,and 2 globally near threatened(NT)species listed in the IUCN Red List of Endangered Species lists were observed.Gadwall(Mareca strepera),Mallard(Anas platyrhyncho),Chinese Spot-billed Duck(Anas zonorhyncha),and Common Coot(Fulica atra)were the dominant species in the restoration area.Habitats of waterbirds included bare land,shallow water area,deep water area,post-harvested reed marsh,post-harvested calamus marsh,and pond ridges.Significant differences in waterbird numbers and compositions were identified across habitats.A total of 19 species(18 372 individuals)were recorded in deep water area,which was the highest among habitats.The community of deep water area was distinct from those of bare land,post-harvested reed marsh,post-harvested calamus marsh,and pond ridges.The shallow water area exhibited the highest Shannon-Wiener diversity index.Regular waterbird monitoring is crucial to enhance our understanding of habitat utilization by waterbirds and the status of restored wetlands.Maintaining the diversity of habitats based on the ecological needs of waterbirds is vital for wetland management and waterbird conservation.
wintering waterbirdshabitatwetland restorationJiangsu Yancheng Wetland National Nature Reserve for Rare Birds
NETL
NSTL
万方数据
