Effects of urban park characteristics on the diversity of breeding birds in Liuzhou,Guangxi
Urbanization is recognized as one of the primary drivers of biodiversity fluctuations.T o examine the influence of urban park characteristics(such as park area,woodland area and the distance from the city center)on the species diver-sity and functional diversity of urban birds,we conducted bird detection by the line transect method in twelve urban parks in Liuzhou,Guangxi from April to August 2021.We employed multiple regression and generalized linear models to as-sess the influence of park characteristics on avian species diversity and functional diversity.Our findings indicated a posi-tive correlation between the size of urban parks and bird species richness,suggesting that larger parks harbor greater spe-cies diversity.Additionally,the RaoQ index of bird functional diversity was positively correlated with the distance from the city center,while the functional evenness index showed negative correlations with both woodland area and distance from the city center,highlighting the significant impact of urbanization on functional diversity.The functional traits of breeding birds in Liuzhou exhibited an aggregation trend,and stochastic processes may be the primary driving force of community composition.Notably,the standardized effect value(SES.MNTD.FD)was positively correlated with wood-land area.The study emphasizes the multidimensional impact of urban park characteristics on bird diversity.The results provide significant data support and practical guidance for bird diversity conservation and urban park planning in Liuzhou and other similar small and medium-sized cities.From the perspective of species conservation,it is recommended that in-creasing the size of urban parks and woodland areas,coupled with a slowdown in the pace of urbanization,can effectively protect and enhance the species diversity and functional diversity of urban birds.
万方数据
维普
