Responses of Protozoan Communities to Multiple Environmental Stresses (Warming, Eutrophication, and Pesticide Pollution)

Animals, Год журнала: 2024, Номер 14(9), С. 1293 - 1293

Опубликована: Апрель 25, 2024

To explore the impacts of multiple environmental stressors on animal communities in aquatic ecosystems, we selected protozoa—a highly sensitive group organisms—to assess effect change. conduct this simulation conducted a three-factor, outdoor, mesocosm experiment from March to November 2021. Changes community structure and functional composition protozoan under separate combined effects these three were investigated by warming addition nitrogen, phosphorus, pesticides. The results as follows: (1) Both eutrophication pesticides had considerable promotional abundance biomass protozoa; was not considerable. When with pesticides, there synergistic antagonistic effect, respectively. (2) Eutrophication promoted α diversity protozoa affected their species richness dominant composition; combination remarkably reduced protozoa. (3) Warming, eutrophication, important factors affecting groups Interaction among different could complicate changes ecological environment its communities. Indeed, context climate change, it might be more difficult predict future trends community. Therefore, our provide scientific basis for protection restoration shallow lake ecosystems; they also offer valuable insights predicting lakes.

Язык: Английский

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A novel approach to integrating the stability of river ecosystem and its driving factors

Frontiers in Environmental Science, Год журнала: 2025, Номер 13

Опубликована: Март 4, 2025

Introduction In recent years, river ecosystem stability has been increasingly threatened by human activities and climate change. Comprehensive quantification of systematic analysis its response to change are essential for effective conservation management. Methods Thus, this study proposed a novel quantitative approach integrating the driving factors. The Han River Basin in China was selected as area due distinctive characteristics significant anthropogenic impact. Both external factors, including urbanization, dam construction, precipitation, internal such TP, DO, EC, were considered Results results revealed that compared upstream, resilience lower reaches decreased 35.75% resistance 8.2%, suggesting from upstream downstream. Urbanization had most negative impact on stability, followed precipitation construction. Among EC three main factors affecting increases these contributed positively enhancing stability. Discussion These findings highlight need targeted strategies mitigate human-induced disturbances enhance Based results, specific recommendations support watershed management ecological restoration, providing valuable insights sustainable conservation.

Язык: Английский

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Research on the seasonal driving mechanisms of benthic macroinvertebrate communities in streams

Frontiers in Ecology and Evolution, Год журнала: 2025, Номер 13

Опубликована: Май 30, 2025

In this study, the community structure and diversity of macroinvertebrate benthic animals in 18 streams, Cangshan, Dali City, Yunnan Province, were investigated detail. The main water environment factors driving changes these communities analyzed, effects wet dry seasons explored. There significant differences characteristics between seasons. particular, precipitation, flow, temperature increased season, species functional significantly greater than those season. Through analysis linear mixed effect model, rainfall increases greatly, leading to acceleration flow velocity increase turbidity; rich nutrients suspended particles enter water, a relatively high provides suitable habitat. combined improve animals. Moreover, season coincides with agricultural farming period area, organic matter runoff also food for reproduction some animals, an their diversity. These results suggest that such seasonal human activities (agricultural development) need be considered when protecting managing aquatic ecosystems regions distinct This study key basis scientific formulation resource management policies, which not only helps maintain health stability ecosystem streams Cangshan but valuable reference protection similar around world.

Язык: Английский

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Deciphering the Chronological and Spatial Dynamics of Azolla Invasion in Dal Lake, Srinagar: Insights from Time-Series Analysis with Edna and 210pb/137cs Dating

Опубликована: Янв. 1, 2024

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Язык: Английский

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Deciphering the Chronological Dynamics of Azolla invasion in Dal Lake, Srinagar: Insights from Sediment eDNA and 210Pb/137Cs Dating Techniques

Earth Systems and Environment, Год журнала: 2024, Номер unknown

Опубликована: Авг. 16, 2024

Язык: Английский

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