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Aquatic ecosystem responds differently to press and pulse nutrient disturbances as revealed by a microcosm experiment

Due to climate change and increasing anthropogenic activities, lakes are disturbed frequently, usually by press (e.g., diffused pollution, rising temperatures) or pulse (e.g., storms, rainfall, pollution events) disturbances. Both press and pulse disturbances can affect abiotic and biotic environmen...

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Autores principales: Zhao, Yu, Wang, Rong, Zhang, Enlou, Guan, Baohua, Xu, Min
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9587460/
https://www.ncbi.nlm.nih.gov/pubmed/36284519
http://dx.doi.org/10.1002/ece3.9438
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author Zhao, Yu
Wang, Rong
Zhang, Enlou
Guan, Baohua
Xu, Min
author_facet Zhao, Yu
Wang, Rong
Zhang, Enlou
Guan, Baohua
Xu, Min
author_sort Zhao, Yu
collection PubMed
description Due to climate change and increasing anthropogenic activities, lakes are disturbed frequently, usually by press (e.g., diffused pollution, rising temperatures) or pulse (e.g., storms, rainfall, pollution events) disturbances. Both press and pulse disturbances can affect abiotic and biotic environments, changing the structure of ecosystems and affecting ecosystem services. To confront with the effects of climate change and increasing anthropogenic activities, understanding the different effects of press and pulse disturbances on lake ecosystems is essential. This study assessed the effect of press and pulse disturbances of phosphorus on a microcosmic aquatic ecosystem by measuring the total phosphorus (TP), algae density, and physiological indicators of submerged macrophytes. We found that the microcosmic aquatic ecosystem responded differently to press and pulse disturbances. Our results suggested that it had a lower resistance to pulse phosphorus disturbances than to press phosphorus disturbances. There were significantly higher nutrient concentrations and algal densities in the pulse treatment than in the press treatment. Positive feedback was found between the biomass of submerged macrophytes and the water quality. There was a higher submerged macrophytes biomass at low TP concentration and algal density. In the context of climate change, press and pulse disturbances could have severe impacts on lake ecosystems. Our findings will provide some insight for further research and lake management.
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spelling pubmed-95874602022-10-24 Aquatic ecosystem responds differently to press and pulse nutrient disturbances as revealed by a microcosm experiment Zhao, Yu Wang, Rong Zhang, Enlou Guan, Baohua Xu, Min Ecol Evol Research Articles Due to climate change and increasing anthropogenic activities, lakes are disturbed frequently, usually by press (e.g., diffused pollution, rising temperatures) or pulse (e.g., storms, rainfall, pollution events) disturbances. Both press and pulse disturbances can affect abiotic and biotic environments, changing the structure of ecosystems and affecting ecosystem services. To confront with the effects of climate change and increasing anthropogenic activities, understanding the different effects of press and pulse disturbances on lake ecosystems is essential. This study assessed the effect of press and pulse disturbances of phosphorus on a microcosmic aquatic ecosystem by measuring the total phosphorus (TP), algae density, and physiological indicators of submerged macrophytes. We found that the microcosmic aquatic ecosystem responded differently to press and pulse disturbances. Our results suggested that it had a lower resistance to pulse phosphorus disturbances than to press phosphorus disturbances. There were significantly higher nutrient concentrations and algal densities in the pulse treatment than in the press treatment. Positive feedback was found between the biomass of submerged macrophytes and the water quality. There was a higher submerged macrophytes biomass at low TP concentration and algal density. In the context of climate change, press and pulse disturbances could have severe impacts on lake ecosystems. Our findings will provide some insight for further research and lake management. John Wiley and Sons Inc. 2022-10-22 /pmc/articles/PMC9587460/ /pubmed/36284519 http://dx.doi.org/10.1002/ece3.9438 Text en © 2022 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Articles
Zhao, Yu
Wang, Rong
Zhang, Enlou
Guan, Baohua
Xu, Min
Aquatic ecosystem responds differently to press and pulse nutrient disturbances as revealed by a microcosm experiment
title Aquatic ecosystem responds differently to press and pulse nutrient disturbances as revealed by a microcosm experiment
title_full Aquatic ecosystem responds differently to press and pulse nutrient disturbances as revealed by a microcosm experiment
title_fullStr Aquatic ecosystem responds differently to press and pulse nutrient disturbances as revealed by a microcosm experiment
title_full_unstemmed Aquatic ecosystem responds differently to press and pulse nutrient disturbances as revealed by a microcosm experiment
title_short Aquatic ecosystem responds differently to press and pulse nutrient disturbances as revealed by a microcosm experiment
title_sort aquatic ecosystem responds differently to press and pulse nutrient disturbances as revealed by a microcosm experiment
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9587460/
https://www.ncbi.nlm.nih.gov/pubmed/36284519
http://dx.doi.org/10.1002/ece3.9438
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