Comparison of avian diversity between urban parks adjacent to mountain and river in the largest megacity Guangzhou, South China

《Comparison of avian diversity between urban parks adjacent to mountain and river in the largest megacity Guangzhou, South China》

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作者: Yongmei Xiong;Zhiqi Li;Lin Ruan;Seping Dai;Lin Hu

来源: URBAN FORESTRY & URBAN GREENING,Vol.77,Issue1,Article 127756

语言: 英文

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of avian diversity between urban parks adjacent to mountain and river in the largest megacity Guangzhou, South China","usesAbstractUrl":true,"renderingMode":"Preview","isAbstract":true,"isContentVisible":false,"ajaxLinks":{"authorMetadata":true},"eligibleForUniversalPdf":false,"pdfEmbed":false,"displayViewFullText":false},"authors":{"content":[{"#name":"author-group","$":{"id":"ag0005"},"$$":[{"#name":"author","$":{"id":"au0005","author-id":"S1618866722002990-ae6e9a5dd1d1cd47287f4ab81fcff80d"},"$$":[{"#name":"given-name","_":"Yongmei;Guangzhou Institute of Forestry and Landscape Architecture, Guangzhou 510405, China;Key Laboratory of Environment Change and Resources Use in Beibu Gulf, Ministry of Education, Nanning Normal University, Nanning 530001, China;Guangzhou Institute of Forestry and Landscape Architecture, Guangzhou 510405, China;Key Laboratory of Environment Change and Resources Use in Beibu Gulf, Ministry of Education, Nanning Normal University, Nanning 530001, China

摘要: Urban parks can provide a resource for maintaining and increasing bird biodiversity. However, little research has been conducted to show the differences in bird community diversity between parks adjacent to mountains and rivers in the city center of highly urbanized areas. This study analysed whether the bird composition and species diversity differed between parks adjacent to Baiyun Mountain (hillside parks) and Pearl River (riverside parks) in Guangzhou, South China. From January 2018 to December 2020, 137927 birds representing 206 species were recorded. The results indicated that the number of species and individuals of birds were higher in hillside parks than in riverside parks in each season. The number of species and individuals was also higher in hillside parks than in riverside parks in different functional groups according to bird food type, residential type, and ecological type. The number of species shared by the two types of parks was 120. The unique birds' species number in hillside and riverside parks were 67 and 19, respectively. Bird diversity in terms of richness and Shannon index was higher significantly in hillside parks than in riverside parks in summer. Principal component analysis of environmental traits of 18 parks showed that plant traits in parks have relatively high and positive contribution. Correlation analysis indicated that bird diversity was positively affected by water area, the highest altitude, habitats diversity and tree evenness in park, while negatively regulated by building coverage around each park. The top 20 most abundant bird species accounted for 87.5% of the total birds in the study period. Nycticorax nycticorax, Urocissa erythroryncha and Podiceps ruficollis were observed more frequently in hillside parks, while Pycnonotus aurigaster, Passer montanus, Acridotheres cristatellus were observed more frequently in riverside parks. Principal coordinates analysis also indicated that bird communities significantly differed between hillside parks and riverside parks. In conclusion, our findings highlight the importance of conserving mountains and rivers as buffer zones for serious anthropogenic disturbance in the city center. We propose that the conservation of hillside parks is a priority strategy for enhancing urban birds biodiversity.