Prokaryotic footprints in urban water ecosystems: A case study of urban landscape ponds in a coastal city, China

Hu, Anyi; Li, Shuang; Zhang, Lanping; Wang, Hongjie; Yang, Jun; Luo, Zhuanxi; Rashid, Abbas; Chen, Shaoqing; WeiXiong, Huang; Yu, Chang‐Ping

doi:10.1016/j.envpol.2018.07.097

Cited by 35 publications

(19 citation statements)

References 81 publications

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“…However, our results agree with a recent review by Jia et al [28], which suggested that the highest community turnover results from dispersal limitation combined with drift. Dispersal limitation was previously found to prevail in the assembly of bacterial communities in ponds [56], soil permafrost of a boreal forest landscape [57], and in mineral-associated soils [58]. Microeukaryotes were also dispersal-limited in a subtropical marine ecosystem [59].…”

Section: Discussionmentioning

confidence: 88%

Community Assembly Mechanisms Underlying the Core and Random Bacterioplankton and Microeukaryotes in a River–Reservoir System

Isabwe

Ren

Wang

et al. 2019

Water

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Whether bacterioplankton are assembled in the same way as microeukaryotes is a key question that has been answered only partially in microbial ecology. In particular, relating distribution patterns to the underlying ecological processes for plankton communities in highly dynamic ecosystems, such as river–reservoirs subjected to anthropogenic impacts, remains largely unstudied. Here, we analyzed taxonomic distribution patterns, and unraveled community assembly processes underlying the core and random bacterioplankton and microeukaryotes from a subtropical river–reservoir system. These plankton domains were modelled using the spatial abundance distributions (SpADs) of the operational taxonomic units (OTUs) as a proxy for abundant and rare taxa delineation. Both bacterioplankton and microeukaryote plankton communities exhibited significant distance–decay relationships, and samples were grouped depending on reservoir or river habitats. The neutral community model showed that 35–45% of the plankton community variation could be explained by neutral processes. The phylogenetic null model revealed that dispersal limitation accounted for the largest percentage of pairwise comparisons (42–68%), followed by environmental selection (18–25%). We concluded that similar prevalence of ecological processes acting on particular subsets of the bacterioplankton and microeukaryotes might have resulted from similar responses to environmental change, potentially induced by human activities in the watershed.

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Section: Discussionmentioning

confidence: 88%

Community Assembly Mechanisms Underlying the Core and Random Bacterioplankton and Microeukaryotes in a River–Reservoir System

Isabwe

Ren

Wang

et al. 2019

Water

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“…Zhengzhou. The for Zhengzhou was calculated using (1)- (14). The health states were evaluated and the results were provided in Figure 3.…”

Section: Comprehensive Evaluation Of Water Ecosystem Inmentioning

confidence: 99%

“…At present, the issue of urban ecosystem health has attracted the attention of scholars and government organizations worldwide [14,15]. The concept of urban ecosystem health was first proposed by Rapport [16].…”

Section: Introductionmentioning

confidence: 99%

Urban Water Ecosystem Health Evaluation Based on the Improved Fuzzy Matter-Element Extension Assessment Model: Case Study from Zhengzhou City, China

Han

Zhang

2019

Mathematical Problems in Engineering

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The urban water ecosystem is a core foundation for the urban construction of ecological civilization. Ecosystem health is directly related to the economic development of the region and the quality of urban residents’ lives. Evaluating the health state of an urban water ecosystem is an important prerequisite for the construction of an ecologically civilized city. This study used Zhengzhou City in China as research area. Firstly, a Pressure-State-Response (PSR) model was used to construct an urban water ecosystem evaluation index system. Secondly, after analyzing the deficiency of traditional fuzzy matter-element extension model in urban water ecosystem health assessment, an improved fuzzy matter-element extension assessment model (FMEAM) was constructed by introducing the variable weight theory. Finally, using the proposed model above and the data from 2007 to 2016, this study evaluated the water ecosystem health status of Zhengzhou based on water ecosystem health integrated index (WHI). The results showed that the state of the urban water ecosystem in Zhengzhou generally improved during the study period. However, the overall level still remained low and retained an unhealthy state throughout the timeframe. The pressure on the Zhengzhou water ecosystem mainly originates from the increasing urbanization rate, the increased consumption of ecological environmental resources, and household water. Corresponding countermeasures in Zhengzhou have achieved certain results, and the health of the state’s subsystem and response subsystem has improved. However, it remains necessary to further strengthen the protection of the ecological environment, particularly with respect to water resources.

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“…While these processes are likely to operate here, pond size might additionally be important in mitigating edge effects, with larger areas are relatively less affected by edge effects compared to smaller areas (given a similar shape) (Connor and McCoy 2001). Thereby, within an urban context, local disturbances at edges of ponds (Egger 2006, Du et al 2010, Hu et al 2018 might be less likely to affect the entire pond in large ponds, thereby decreasing the impacts of disturbance. In addition, a greater amount of water in larger ponds, may dilute the effects of pollution in larger ponds (Abel 1996).…”

Section: Discussionmentioning

confidence: 97%

High species turnover shapes anuran community composition in ponds along an urban-rural gradient

Ganci

Provete

Püttker

et al. 2020

Preprint

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The rapid expansion of urban areas in which natural and semi-natural areas are replaced by human infrastructure, such as buildings and streets, is a major threat to biodiversity worldwide. However, little is known about how the structure of biotic communities is affected by urbanization in the tropics. Here, we tested the effect of land use types in urban and peri-urban areas on frog species richness and community composition in central Brazil. We selected 20 ponds differing in size and surrounding levels of urbanization as well as natural forest cover. We then used a Poisson GLM and a distance-based Redundancy Analysis (db-RDA) to relate species richness and community composition, respectively, to environmental variables. Variation in species richness was best explained by pond size (positive effect) and amount of urbanization (negative effect) in the surrounding 500 m. Community composition was mainly driven by species turnover than by nestedness, with db-RDA showing that turnover was explained primarily by urban infrastructure and forest cover. Our results indicate that urbanization negatively influences species richness. Moreover, as the amount of urbanization increased, several species were replaced by others taxa that appear better adapted to urban environments. Our results indicate that maintaining large ponds with surrounding native vegetation in urban environments might be an effective strategy for conserving frog communities.

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Prokaryotic footprints in urban water ecosystems: A case study of urban landscape ponds in a coastal city, China

Cited by 35 publications

References 81 publications

Community Assembly Mechanisms Underlying the Core and Random Bacterioplankton and Microeukaryotes in a River–Reservoir System

Community Assembly Mechanisms Underlying the Core and Random Bacterioplankton and Microeukaryotes in a River–Reservoir System

Urban Water Ecosystem Health Evaluation Based on the Improved Fuzzy Matter-Element Extension Assessment Model: Case Study from Zhengzhou City, China

High species turnover shapes anuran community composition in ponds along an urban-rural gradient

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