Characteristics of Avian Community Variation in River Corridor Green Spaces of Fuzhou City and Its Response to Urbanization
[Objective]River corridors play a crucial role in the conservation of urban biodiversity,and parks along the riverbanks are important places for wildlife migration and habitat.To explore the response of bird communities in parks along the riverbanks to urbanization,autumnal birds were selected as the indicator group.[Methods]Nine parks along the Min River in Fuzhou City were selected as the subjects.Person analysis,Wilcoxon test,PCoA analysis,and indicator species analysis were used to study the differences in bird species composition,alpha diversity,and beta diversity in areas with different degrees of urbanization disturbance.[Results](1)The proportion of artificial substrates and the average number of people in parks are negatively correlated with the Pielou index of birds in the parks,while the distance from the park to the city center is positively correlated with the Shannon index of birds.(2)Based on the degree of urbanization impact from high to low,parks were classified into U1,U2,and U3.Migratory birds are mainly distributed in U2,while U1 is dominated by resident birds.Insectivorous birds are concentrated in U3,and omnivorous birds are more frequently found in U1.Other dietary bird species are more common in U2,Palearctic birds are more likely to appear in U3,Oriental birds are mainly distributed in U1,and widespread bird species are more frequently found in U2.(3)In terms of alpha diversity,there was a significant difference in the Shannon diversity index between U1 and U2 birds,with no significant differences in other indices.Overall,U2 had the highest alpha diversity of birds.There were significant differences in bird beta diversity across different urbanization levels,with particularly notable differences between omnivorous and insectivorous birds.(4)A total of 7 bird species can be used to monitor the level of urbanization disturbance in parks.The indicator species for U1 are the Japanese White-eye(Zosterops japonicus)and Eurasian Blackbird(Turdus merula),for U2 are the White-breasted Waterhen(Amaurornis phoenicurus),Yellow-browed Warbler(Phylloscopus proregulus),and Large-billed Leaf Warbler(Phylloscopus Schwarz),and for U3 are the Crested Myna(Acridotheres cristatellus)and Yellow-browed Warbler(Phylloscopus inornatus).[Conclusion]Based on the above research results,we suggest that in the construction of urban riverbank park green spaces,attention should be paid to the creation and protection of bird habitats in parks with different levels of urbanization,in order to better utilize the ecological service functions of urban riverside park green spaces.
万方数据
维普
