Urbanization has changed the distribution pattern of zooplankton species diversity and the structure of functional groups
Urbanization has changed the distribution pattern of zooplankton species diversity and the structure of functional groups
复制标题
城市化改变了浮游动物物种多样性分布格局和功能类群结构
DOI：
10.1016/j.ecolind.2020.106944
复制
发表时间：
2021-01-01
影响因子：
6.9
通讯作者：
Wan，Yun
中科院分区：
文献类型：
--
作者：
Shen，Jiachen;Qin，Ge;Wan，Yun
城市化给城市湿地的物种多样性带来了毁灭性的灾难。但由于城市环境的复杂性，城市生物多样性分布格局的形成过程和成因尚不清楚。本文以淮河流域城市密集区为研究对象，采用空间分析方法，探讨城市化背景下浮游动物空间分异的格局和形成机制。结果表明，浮游动物多样性随城市化水平的提高而降低，不同城市化水平地区浮游动物种类组成差异显著。同时，随着城市化水平的降低，湿地水质呈上升趋势，与浮游动物物种丰富度呈显著正相关。总氮（TN）、总磷（TP）和铵态氮（NH 4 +-N）是影响浮游动物空间分异格局的主要因子。此外，营养盐的增加改变了浮游动物功能群的结构，而轮虫表现出较强的抗污染能力。铬对浮游动物功能群密度的抑制作用不容忽视。研究结果揭示了城市化进程中浮游动物的空间分异机制，强调了城市湿地生态恢复和生境重建的必要性。
Urbanization has brought devastating disasters to the species diversity of urban wetlands. However, due to the complexity of the urban environment, the process and causes of urban biodiversity distribution patterns are not clear. In this study, we explored the patterns and formation of spatial differentiation in zooplankton in the context of urbanization by using spatial instead of temporal methods to reveal the urbanization process in the urban intensive Huaihe River Basin. The results showed that the diversity of zooplankton decreased with increasing urbanization level, and the species composition in areas with different urbanization levels was significantly different. At the same time, the water quality of wetlands increased with decreasing urbanization level, which exhibited a significant positive correlation with the species richness of zooplankton. Total nitrogen (TN), total phosphorus (TP) and ammonium nitrogen (NH4+-N) were the main factors affecting the spatial differentiation pattern of zooplankton. Moreover, the increase in nutrients changed the structure of zooplankton functional groups, while rotifers showed strong resistance to pollution. The inhibition of chromium (Cr) on the density of zooplankton functional groups should not be ignored. The results reveal the spatial differentiation mechanism of zooplankton in the process of urbanization and emphasize the necessity of urban wetland ecological restoration and habitat reconstruction.