The spatial-temporal patterns of bird diversity and its determinants in the small wetlands in Hefei City

Abstract

Aims: Small wetlands are an important part of urban ecosystems and important shelters for wildlife. Bird diversity as an indicator of urban small wetland ecosystems, its spatial and temporal patterns are affected by many environmental factors. In this study, we studied urban small wetlands and their birds to identify the key environmental factors that affect the spatial and temporal patterns of bird diversity in small wetlands. We then make suggestions on the construction and management of urban small wetlands to promote the protection of urban birds and their habitat restoration. Methods: A total of 45 small wetlands in Hefei City were taken as research units, and we used the fixed radius method to investigate the distribution of bird species and their abundance from August 2020 to July 2021. A number of environmental factors were also measured, including wetland area, wetland shape, proportion of construction area, proportion of vegetation area, environmental noise, man-made disturbance, and urbanization index. The spatial and

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