Diversity of Waterbird Communities in Wetlands in Yinchuan Reaches of the Yellow River
Yinchuan City is a concentrated area of wetlands in the middle and upper reaches of the Yellow River.From June 2022 to July 2023,waterbird surveys were carried out in 62 points from seven kinds of wetland habitats with the method of sampling sites and direct counting in Yinchuan reaches of the Yellow River,in ordered to understand the composition of waterbird communities in this area.The results showed that 73 species belonging to seven orders and 14 families were recorded,and the large numbers of them were belonging to Anseriformes and Charadriformes.Among them,three were national first-class protected species,including Relict Gull(Ichthyaetus relictus),Black Stork(Ciconia nigra)and Dalmatian pelican(Pelecanus crispus).And 11 were national second-class protected species.The dominant species included Bean Geese(Anser fabalis),Ruddy Shelduck(Tadorna ferruginea),Eastern Spot-billed Duck(Anas zonorhyncha),Coot(Fulica atra),Common Tern(Sterna hirundo),and Black-headed Gull(Chroicocephalus ridibundus).The diversity and evenness index of waterbird communities in seven kinds of habitats decreased from river,lake,shrub/marsh,land of reverting farmland to wetland,paddy field,pond to land of reverting fishpond to wetland.River was the pivot habitat of waterbirds(including three of China's national first-level protected birds)in Yinchuan reaches of the Yellow River,and the number of species and individuals of waterbird in lands of reverting fishpond to wetland were the least.Strengthen the wetland microhabitats management is conductive to the increase of bird diversity and maintaining the stability of waterbird community.
waterbird communitydominant specieshabitat managementhabitat type
NETL
NSTL
万方数据
