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Influences of pesticides, nutrients, and local environmental variables on phytoplankton communities in lentic small water bodies in a German lowland agricultural area

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Influences of pesticides, nutrients, and local environmental variables on phytoplankton communities in lentic small water bodies in a German lowland agricultural area. / Wijewardene, Lishani; Wu, Naicheng; Qu, Yueming; Guo, Kun; Messyasz, Beata; Lorenz, Stefan; Riis, Tenna; Ulrich, Uta; Fohrer, Nicola.

I: Science of the total Environment, Bind 780, 146481, 08.2021.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

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APA

Wijewardene, L., Wu, N., Qu, Y., Guo, K., Messyasz, B., Lorenz, S., Riis, T., Ulrich, U., & Fohrer, N. (2021). Influences of pesticides, nutrients, and local environmental variables on phytoplankton communities in lentic small water bodies in a German lowland agricultural area. Science of the total Environment, 780, [146481]. https://doi.org/10.1016/j.scitotenv.2021.146481

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Author

Wijewardene, Lishani ; Wu, Naicheng ; Qu, Yueming ; Guo, Kun ; Messyasz, Beata ; Lorenz, Stefan ; Riis, Tenna ; Ulrich, Uta ; Fohrer, Nicola. / Influences of pesticides, nutrients, and local environmental variables on phytoplankton communities in lentic small water bodies in a German lowland agricultural area. I: Science of the total Environment. 2021 ; Bind 780.

Bibtex

@article{f37a632183314540b05bc59535022d56,
title = "Influences of pesticides, nutrients, and local environmental variables on phytoplankton communities in lentic small water bodies in a German lowland agricultural area",
abstract = "Agrochemicals such as pesticides and nutrients are concurrent chemical stressors in freshwater aquatic ecosystems surrounded by agricultural areas. Lentic small water bodies (LSWB) are ecologically significant habitats especially for maintaining biodiversity but highly understudied. Phytoplankton are ideal indicator species for stress responses. Functional features of the phytoplankton are important in revealing the processes that determine the structure of the communities. In this study, we investigated the effects of pesticides, nutrients, and local environmental variables on the species composition and functional features of phytoplankton communities in LSWB. We studied pesticide toxicity of ninety-four pesticides, three nutrients (NH4-N, NO3-N and PO4-P) and local environment variables (precipitation, water level change, temperature, dissolved oxygen concentration, electrical conductivity, pH) in five LSWB over twelve weeks during the spring pesticide application period. We explored respective changes in species composition of phytoplankton community and functional features. Redundancy analysis and variance partitioning analysis were applied to correlate phytoplankton community compositions with the pesticide toxicity (as maximum toxicity in toxic units), nutrients and local environment variables. We used multiple linear regression models to identify the main environmental variables driving the functional features of phytoplankton communities. Pesticide toxicity, nutrients and local environmental variables significantly (p < 0.001) contributed to shaping phytoplankton community composition individually. Local environment variables showed the highest pure contribution for driving phytoplankton composition (12%), followed by nutrients (8%) and pesticide toxicity (2%). Functional features (represented by functional diversity and functional redundancy) of the phytoplankton community were significantly affected by pesticide toxicity and nutrients concentrations. The functional richness and functional evenness were negatively affected by PO4-P concentrations. Pesticide toxicity was positively correlated with functional redundancy indices. Our findings emphasized the relative importance of concurrent multiple stressors (e.g., pesticides and nutrients) on phytoplankton community structure, directing potential effects on metacommunity structures in aquatic ecosystems subjected to agricultural runoff. (C) 2021 Elsevier B.V. All rights reserved.",
keywords = "Multiple stressors, Agrochemicals, Pesticide and nutrient enrichment, Species composition, Functional diversity, Functional redundancy, FRESH-WATER, DIVERSITY, CONTAMINANTS, SENSITIVITY, CATCHMENT, ATRAZINE, PLANKTON, IMPACTS, ECOLOGY, STREAMS",
author = "Lishani Wijewardene and Naicheng Wu and Yueming Qu and Kun Guo and Beata Messyasz and Stefan Lorenz and Tenna Riis and Uta Ulrich and Nicola Fohrer",
year = "2021",
month = aug,
doi = "10.1016/j.scitotenv.2021.146481",
language = "English",
volume = "780",
journal = "Science of the Total Environment",
issn = "0048-9697",
publisher = "Elsevier BV",

}

RIS

TY - JOUR

T1 - Influences of pesticides, nutrients, and local environmental variables on phytoplankton communities in lentic small water bodies in a German lowland agricultural area

AU - Wijewardene, Lishani

AU - Wu, Naicheng

AU - Qu, Yueming

AU - Guo, Kun

AU - Messyasz, Beata

AU - Lorenz, Stefan

AU - Riis, Tenna

AU - Ulrich, Uta

AU - Fohrer, Nicola

PY - 2021/8

Y1 - 2021/8

N2 - Agrochemicals such as pesticides and nutrients are concurrent chemical stressors in freshwater aquatic ecosystems surrounded by agricultural areas. Lentic small water bodies (LSWB) are ecologically significant habitats especially for maintaining biodiversity but highly understudied. Phytoplankton are ideal indicator species for stress responses. Functional features of the phytoplankton are important in revealing the processes that determine the structure of the communities. In this study, we investigated the effects of pesticides, nutrients, and local environmental variables on the species composition and functional features of phytoplankton communities in LSWB. We studied pesticide toxicity of ninety-four pesticides, three nutrients (NH4-N, NO3-N and PO4-P) and local environment variables (precipitation, water level change, temperature, dissolved oxygen concentration, electrical conductivity, pH) in five LSWB over twelve weeks during the spring pesticide application period. We explored respective changes in species composition of phytoplankton community and functional features. Redundancy analysis and variance partitioning analysis were applied to correlate phytoplankton community compositions with the pesticide toxicity (as maximum toxicity in toxic units), nutrients and local environment variables. We used multiple linear regression models to identify the main environmental variables driving the functional features of phytoplankton communities. Pesticide toxicity, nutrients and local environmental variables significantly (p < 0.001) contributed to shaping phytoplankton community composition individually. Local environment variables showed the highest pure contribution for driving phytoplankton composition (12%), followed by nutrients (8%) and pesticide toxicity (2%). Functional features (represented by functional diversity and functional redundancy) of the phytoplankton community were significantly affected by pesticide toxicity and nutrients concentrations. The functional richness and functional evenness were negatively affected by PO4-P concentrations. Pesticide toxicity was positively correlated with functional redundancy indices. Our findings emphasized the relative importance of concurrent multiple stressors (e.g., pesticides and nutrients) on phytoplankton community structure, directing potential effects on metacommunity structures in aquatic ecosystems subjected to agricultural runoff. (C) 2021 Elsevier B.V. All rights reserved.

AB - Agrochemicals such as pesticides and nutrients are concurrent chemical stressors in freshwater aquatic ecosystems surrounded by agricultural areas. Lentic small water bodies (LSWB) are ecologically significant habitats especially for maintaining biodiversity but highly understudied. Phytoplankton are ideal indicator species for stress responses. Functional features of the phytoplankton are important in revealing the processes that determine the structure of the communities. In this study, we investigated the effects of pesticides, nutrients, and local environmental variables on the species composition and functional features of phytoplankton communities in LSWB. We studied pesticide toxicity of ninety-four pesticides, three nutrients (NH4-N, NO3-N and PO4-P) and local environment variables (precipitation, water level change, temperature, dissolved oxygen concentration, electrical conductivity, pH) in five LSWB over twelve weeks during the spring pesticide application period. We explored respective changes in species composition of phytoplankton community and functional features. Redundancy analysis and variance partitioning analysis were applied to correlate phytoplankton community compositions with the pesticide toxicity (as maximum toxicity in toxic units), nutrients and local environment variables. We used multiple linear regression models to identify the main environmental variables driving the functional features of phytoplankton communities. Pesticide toxicity, nutrients and local environmental variables significantly (p < 0.001) contributed to shaping phytoplankton community composition individually. Local environment variables showed the highest pure contribution for driving phytoplankton composition (12%), followed by nutrients (8%) and pesticide toxicity (2%). Functional features (represented by functional diversity and functional redundancy) of the phytoplankton community were significantly affected by pesticide toxicity and nutrients concentrations. The functional richness and functional evenness were negatively affected by PO4-P concentrations. Pesticide toxicity was positively correlated with functional redundancy indices. Our findings emphasized the relative importance of concurrent multiple stressors (e.g., pesticides and nutrients) on phytoplankton community structure, directing potential effects on metacommunity structures in aquatic ecosystems subjected to agricultural runoff. (C) 2021 Elsevier B.V. All rights reserved.

KW - Multiple stressors

KW - Agrochemicals

KW - Pesticide and nutrient enrichment

KW - Species composition

KW - Functional diversity

KW - Functional redundancy

KW - FRESH-WATER

KW - DIVERSITY

KW - CONTAMINANTS

KW - SENSITIVITY

KW - CATCHMENT

KW - ATRAZINE

KW - PLANKTON

KW - IMPACTS

KW - ECOLOGY

KW - STREAMS

U2 - 10.1016/j.scitotenv.2021.146481

DO - 10.1016/j.scitotenv.2021.146481

M3 - Journal article

C2 - 33774292

VL - 780

JO - Science of the Total Environment

JF - Science of the Total Environment

SN - 0048-9697

M1 - 146481

ER -