Urbanization reduces resource use efficiency of phytoplankton community by altering the environment and decreasing biodiversity

Yang, Yigang; Chen, Huihuang; Al, Mamun Abdullah; Ndayishimiye, Jean Claude; Isabwe, Alain; Luo, Anqi; Yang, Jun

doi:10.1016/j.jes.2021.05.001

Cited by 65 publications

(31 citation statements)

References 55 publications

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“…This may be attributed to variations in environmental conditions influenced by land use. Anthropogenic activity along rivers may increase the quantities of nutrients and change the form and proportion of nutrients and physicochemical variables ( Yang et al, 2022 ). The concentrations of NO 3 – -N, NH 4 + -N and TOC were higher in the dry season than in the wet season, and NO 3 – -N, NH 4 + -N and TP in the downstream regions were significantly higher than in the upstream regions due to the influence of mines and agricultural activities ( Supplementary Figure 1 ).…”

Section: Discussionmentioning

confidence: 99%

“…Human activity refers to the process of anthropogenic utilization, exploitation, and protection of the natural environment for development and survival ( Xu et al, 2015 ). Changes in water quality caused by the alteration of water supply, drainage, and the construction of impervious surface ( Yang et al, 2022 ) can lead to changes of environment conditions and land use, and an alteration of aquatic ecosystems in proximity to urban areas ( Uchida et al, 2020 ). Rivers are critical freshwater ecosystems that interact with other ecosystems through constant input from surface runoff ( Zhang L. et al, 2020 ; Li et al, 2021 ).…”

Section: Introductionmentioning

confidence: 99%

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Anthropogenic Intensity-Determined Assembly and Network Stability of Bacterioplankton Communities in the Le’an River

Wang

Devlin

et al. 2022

Front. Microbiol.

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Bacterioplankton are essential components of riverine ecosystems. However, the mechanisms (deterministic or stochastic processes) and co-occurrence networks by which these communities respond to anthropogenic disturbances are not well understood. Here, we integrated niche-neutrality dynamic balancing and co-occurrence network analysis to investigate the dispersal dynamics of bacterioplankton communities along human activity intensity gradients. Results showed that the lower reaches (where intensity of human activity is high) had an increased composition of bacterioplankton communities which induced strong increases in bacterioplankton diversity. Human activity intensity changes influenced bacterioplankton community assembly via regulation of the deterministic-stochastic balance, with deterministic processes more important as human activity increases. Bacterioplankton molecular ecological network stability and robustness were higher on average in the upper reaches (where there is lower intensity of human activity), but a human activity intensity increase of about 10%/10% can reduce co-occurrence network stability of bacterioplankton communities by an average of 0.62%/0.42% in the dry and wet season, respectively. In addition, water chemistry (especially NO3–-N and Cl–) contributed more to explaining community assembly (especially the composition) than geographic distance and land use in the dry season, while the bacterioplankton community (especially the bacterioplankton network) was more influenced by distance (especially the length of rivers and dendritic streams) and land use (especially forest regions) in the wet season. Our research provides a new perspective of community assembly in rivers and important insights into future research on environmental monitoring and classified management of aquatic ecosystems under the influence of human activity.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Anthropogenic Intensity-Determined Assembly and Network Stability of Bacterioplankton Communities in the Le’an River

Wang

Devlin

et al. 2022

Front. Microbiol.

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“…For instance, urban runoffs are widely recognized as transport vectors of salts, pharmaceuticals, and trace metals such as cadmium, copper, and lead (Müller et al, 2020), while agricultural runoffs are widely recognized as transport vectors of pesticides and phosphorus and nitrogen in forms of fertilizers and manure (Carpenter et al, 1998;Munz et al, 2017). These contaminants will lead to the loss of biodiversity directly through simple toxicity effects on physiological, developmental, and reproductive processes (Burant et al, 2018) or indirectly by altering the environmental conditions (Yang et al, 2022).…”

Section: Discussionmentioning

confidence: 99%

Functional Responses of Phytoplankton Assemblages to Watershed Land Use and Environmental Gradients

Song

Ming³

et al. 2022

Front. Ecol. Evol.

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Watershed land-use changes have been identified as major threats to lake fauna, subsequently affecting ecosystem functioning. In this study, the functional-based approach was used to examine the effects of land use and environmental changes on phytoplankton communities in four selected lakes in Northeast China. We also identified the sensitive functional traits as indicators of environmental stressors. The integration of RLQ analysis with the fourth-corner approach significantly identified five of 18 functional trait categories, including flagella, filamentous, unicellular, mixotrophic, and chlorophyll c, as potential indicators to changes in watershed land-use intensity and environmental gradients. Significant relationships between traits and land use and water quality highlighted the consequential indirect impact of extensive agricultural and urban development on phytoplankton via allochthonous nutrient inputs and various contaminants. In addition, the functional richness of phytoplankton assemblages generally increased along with surface area and forests, but decreased along with intensive agricultural and urban land use, implying that functional homogenization may cause a reduction in ecosystem productivity and reliability to land-use intensity. Given the superior performance of the functional-based approach, our findings also highlighted the importance of the application of both the biological traits and functional diversity index in monitoring programs for lake ecosystems.

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“…因此, 我们推测人类活动导致水库富营养化, 重度富营养化引起的水质恶化不利于瘤棘奈氏虫生存. 目前, 还有一个不能排除的可能原因是, 东部水库受人类活动影响较大, 水体中存在我们未检测的污染物或其他因子 [40,41] , 这些因素对瘤棘奈氏虫种群密度分布的影响需要进一步的研究. ; 瘤棘奈氏虫对水体的富营养化水平也比较敏感, 主要分布于中营养和轻度富营养水体 [14,17] .…”

Section: 瘤棘奈氏虫种群密度随经度、纬度的升高而降低unclassified

Spatial-temporal variation of <italic>Netzelia tuberspinifera</italic> population density and morphometric characteristics in China andits driving factors

Wang¹,

Gao²,

Chen³

et al. 2021

Chin. Sci. Bull.

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Urbanization reduces resource use efficiency of phytoplankton community by altering the environment and decreasing biodiversity

Cited by 65 publications

References 55 publications

Anthropogenic Intensity-Determined Assembly and Network Stability of Bacterioplankton Communities in the Le’an River

Anthropogenic Intensity-Determined Assembly and Network Stability of Bacterioplankton Communities in the Le’an River

Functional Responses of Phytoplankton Assemblages to Watershed Land Use and Environmental Gradients

Spatial-temporal variation of <italic>Netzelia tuberspinifera</italic> population density and morphometric characteristics in China andits driving factors

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Urbanization reduces resource use efficiency of phytoplankton community by altering the environment and decreasing biodiversity

Cited by 65 publications

References 55 publications

Anthropogenic Intensity-Determined Assembly and Network Stability of Bacterioplankton Communities in the Le’an River

Anthropogenic Intensity-Determined Assembly and Network Stability of Bacterioplankton Communities in the Le’an River

Functional Responses of Phytoplankton Assemblages to Watershed Land Use and Environmental Gradients

Spatial-temporal variation of &lt;italic&gt;Netzelia tuberspinifera&lt;/italic&gt; population density and morphometric characteristics in China andits driving factors

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Spatial-temporal variation of <italic>Netzelia tuberspinifera</italic> population density and morphometric characteristics in China andits driving factors