Bird's Diversity Time and Space Distribution and Priority Protection Area Recognition in Urban Wetlands in Zhengzhou City
In order to explore the community composition,temporal and spatial distribution patterns of avian diversity,and the priority conservation areas for waterfowls in urban wetlands of Zhengzhou City,as well as the impact of environmental factors on avian diversity,distribution data of bird species from 11 urban wetlands in Zhengzhou City were collected from the China Bird Watching Record Center.The similarities and differences of avian communities in different wetlands were analyzed by systematic clustering method,and the key habitat factors affecting avian diversity and priority index were explored by multiple stepwise regression analysis method.The results of the study indicated that a total of 250 species of birds belonging to 53 families and 17 orders were recorded in the 11 wetland wetlands,with Passeriformes being themost abundant.The total population of bird communities was 125 482 individuals.The dominant species of bird community include the Eurasian Tree Sparrow(Passer montanus),the Chinese Bulbul(Pycnonotus sinensis),Azure-winged Magpie(Cyanopica cyanus),Little Grebe(Tachybaptus ruficollis),Eurasian Magpie(Pica pica),Eurasian Coot(Fulica atra),Common Moorhen(Gallinula chloropus)and Mallard(Anas platyrhynchos).The inter-species correlation analysis of dominant bird species showed highly significant positive correlations between Light-vented Bulbul,Eurasian Tree Sparrow,and Azure-winged Magpie,as well as between Little Grebe,Eurasian Coot,and Mallard.Cluster analysis divided the parks into three areas,with the species richness and diversity index of the Xiliu Lake area and the central area being generally lower in spring and autumn and higher in summer and winter,while the Xiang Lake area showed the opposite trend Priority index analysis revealed that three wetlands were high-priority conservation sites for aquatic birds,three were medium-priority sites,and five were low-priority sites.Multiple stepwise regression analysis showed that as isolation,the number of habitat types,and the number of sample points increased,the species richness of birds also increased,while the building index had the opposite effect.It was recommended that more effective protection measures be taken for medium and high-priority conservation sites.In the planning and construction of wetlands,the wetlands should have a large area and a rich variety of habitat types,and the distance between different wetlands should be relatively far.At the same time,public recreation and bird habitats should be taken into account,and activities that cause significant environmental disturbances should be avoided during the breeding and nesting period.
urban wetlandbird community structurehabitat factorspriority protection areasZhengzhou City
NETL
NSTL
万方数据
