Integrated water availability in the conterminous United States, 2010–20

USGS professional paper, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

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Chemical Mixtures and Multiple Stressors: Same but Different?

Environmental Toxicology and Chemistry, Journal Year: 2023, Volume and Issue: 42(9), P. 1915 - 1936

Published: April 10, 2023

Ecosystems are strongly influenced by multiple anthropogenic stressors, including a wide range of chemicals and their mixtures. Studies on the effects stressors have largely focussed nonchemical whereas studies chemical mixtures ignored other stressors. However, both research areas face similar challenges require tools methods to predict joint or frameworks integrate missing. We provide an overview paradigms, tools, commonly used in stressor mixture discuss potential domains cross-fertilization challenges. First, we compare general paradigms ecotoxicology (applied) ecology explain historical divide. Subsequently, approaches for identification interactions, characterization, designing experiments. suggest that too focused interactions would benefit from integration regarding null model selection. Stressor characterization is typically more costly While comprehensive classification systems at suborganismal level been developed, recent account environmental context. Both suffer rather simplified experimental designs focus only limited number chemicals, treatments. concepts can guide realistic capturing spatiotemporal dynamics. process-based data-driven models particularly promising tackle challenge prediction (meta-)communities (meta-)food webs. propose framework assessment Environ Toxicol Chem 2023;42:1915-1936. © 2023 The Authors. Environmental Toxicology Chemistry published Wiley Periodicals LLC behalf SETAC.

Language: Английский

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A synthesis of anthropogenic stress effects on emergence-mediated aquatic-terrestrial linkages and riparian food webs

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 908, P. 168186 - 168186

Published: Oct. 30, 2023

Language: Английский

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Multiple lines of evidence point to pesticides as stressors affecting invertebrate communities in small streams in five United States regions

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 915, P. 169634 - 169634

Published: Jan. 24, 2024

Multistressor studies were performed in five regions of the United States to assess role pesticides as stressors affecting invertebrate communities wadable streams. Pesticides and other chemical physical measured 75 99 streams per region for 4 weeks, after which surveyed (435 total sites). sampled weekly filtered water, once bed sediment. The a stressor was assessed by evaluating multiple lines evidence: toxicity predictions based on pesticide concentrations, multivariate models statistical analyses, previously published mesocosm experiments. Toxicity using benchmarks species sensitivity distributions correlations suggested that present at high enough concentrations adversely affect regional scale. Two undirected techniques—boosted regression tree distance-based linear models—identified predictors (respectively) metrics community composition. To put insecticides context with known, influential covariates response, generalized additive used identify individual pesticide(s) important condition each region, accounting natural covariates. Four identified scale: bifenthrin, chlordane, fipronil its degradates, imidacloprid. Fipronil particularly Southeast imidacloprid, chlordane regions. For fipronil, supported experiments demonstrated adverse effects naïve aquatic when dosed under controlled conditions. These evidence do not prove causality—which is challenging field multistressor conditions—but they make strong case within

Language: Английский

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Responses of multimetric indices to disturbance are affected by index construction features

Environmental Reviews, Journal Year: 2024, Volume and Issue: 32(2), P. 278 - 293

Published: Feb. 22, 2024

Multimetric indices (MMIs) are used worldwide to assess the ecological conditions of aquatic and terrestrial ecosystems. Different criteria approaches construct MMIs, resulting in widely different indices. Therefore, scientists, managers, policymakers sometimes question whether such MMIs useful for biomonitoring bioassessment programs. Crucial design issues programs include MMI responsiveness, bioindicator group used, survey design, field sampling methods, level taxonomic resolution, metric selection scoring, reference condition identification. We performed a meta-analysis on development applications analyze response disturbance factors determine degree which construction features influence their responsiveness anthropogenic disturbances. Web Science database find articles that applied an related values environmental stressor, we extracted data from 157 articles. random-effects modeling estimate overall effect responses subgroup analysis extent sizes varied as function features. found had major disturbance. The type, number metrics, ecosystem type were contributed more weakly size variance. general was little affected by group, criteria, or scoring method. These findings have important implications designing programs, including developing improving cost-effective biological indices, because they could enhance application protocols.

Language: Английский

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Spatial heterogeneity of low flow hydrological alterations in response to climate and land use within the Upper Mississippi River basin

Journal of Hydrology, Journal Year: 2024, Volume and Issue: 632, P. 130872 - 130872

Published: Feb. 15, 2024

The Upper Mississippi River Basin (UMRB), located in the Midwestern U.S., is a nationally recognized region of concern for water quality and aquatic biological health. At 500,000 km2, geospatial characteristics climate vary widely within basin thus, hydrological behavior associated effects on freshwater ecosystems may also dramatically vary. So far, previous studies long-term UMRB have mostly considered changes rather than at finer watershed scales. This study systematically evaluated long term trends indices alteration (IHA) 118 131 watersheds compared them with 1) variabilities features (land use, soil type, topography), 2) land use changes, 3) climate, 4) evapotranspiration using hierarchical clustering correlation analysis. Compared to trends, were found stronger impacts low flow IHA watershed. results demonstrate that while overall, has been increasing basin, there considerable variability alterations across watersheds. Specifically, indicate forested or mixed-use watersheds, decreasing agricultural urban increasing. These together literature UMRB, suggest both stressors, quantity exist by evapotranspiration, implying effective management plans are local not regional should be directed toward reducing specific stressors.

Language: Английский

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Effects of multiple stressors on benthic invertebrates using Water Framework Directive monitoring data

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 878, P. 162952 - 162952

Published: March 21, 2023

Language: Английский

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Pesticide Pollution Reduces the Functional Diversity of Macroinvertebrates in Urban Aquatic Ecosystems

Environmental Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: April 15, 2025

Urbanization accelerates innovation and economic growth but imposes significant ecological challenges, particularly to aquatic biodiversity ecosystem functionality. Among urban stressors, pesticide-driven chemical pollution represents a critical, yet under-recognized, global threat. Quantifying the causes consequences of pesticides on loss degradation is vital for risk assessment management, offering insights promote sustainable societal development. This study evaluated anthropogenic stressors macroinvertebrate communities at 42 sites across two major drainages in Beijing using analysis environmental DNA (eDNA), focusing responses pesticide exposure context multiple stressors. Pesticides significantly impacted α- β-functional diversity macroinvertebrates, accounting 18.46 14.6% total observed variation, respectively, underscoring role functional groups assessment. Land use flow quantity directly influenced levels, which turn affected diversity, while basic water quality had less pronounced effect. These results provide empirical evidence pollution's impact watershed scale under field conditions highly urbanized area. The findings highlight importance considering sensitive taxa management ecosystems.

Language: Английский

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Linking functional responses and effects with stoichiometric traits

Ecology, Journal Year: 2025, Volume and Issue: 106(4)

Published: April 1, 2025

Abstract Trait‐based approaches to study biodiversity responses changing environmental conditions have become popular because these provide context how and why certain taxa shift in abundance within an assemblage. also offer the potential link shifts assemblage composition effects on ecosystem functions like rates of primary production, detrital decomposition, nutrient uptake. However, focusing response traits multidimensional functional diversity studies limits our ability make linkages. We developed a analytical visual stoichiometric framework that links organismal change using traits. define as acquisition, assimilation, allocation, excretion key chemical elements by members discuss considerations for trait‐based apply case temporal variation stream benthic invertebrate assemblages spatial urban woody vegetation assemblages. These examples illustrate utility testing hypotheses suggest promising linkages between function.

Language: Английский

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Linking wastewater treatment plant effluents to water quality and hydrology: Effects of multiple stressors on fish communities

Water Research, Journal Year: 2024, Volume and Issue: 260, P. 121914 - 121914

Published: June 9, 2024

Wastewater treatment plants (WWTPs) are essential for maintaining a good water quality of surface waters. However, WWTPs also associated with deterioration and hydro-morphological alteration. Riverine communities respond to these stressors changes in their community structure, abundance diversity. In this study, we used dataset 94 monitoring sites across North Rhine-Westphalia, Germany investigate the influence on river sections downstream WWTP effluents. More specifically, analyzed effects percentage effluents (in relation median base flow) four stressor groups (physico-chemistry, micropollutants, hydrological morphological alteration) using Linear Mixed Models (LMM). Furthermore, assessed impact selection twelve ecologically relevant variables reflecting alteration reference fish Canonical Correspondence Analysis (CCA). The was correlated quality, especially toxic units wide range pharmaceuticals including diclofenac, venlafaxine sulfamethoxazole (R² up 0.54) as well specific pesticides (e.g., terbutryn: R² = 0.33). correlation percent weaker most pronounced frequency high flow 0.24) variability 0.19). About 40 % variance structure were explained by 12 CCA models. Water hydrological, but not showed strong albeit highly variable individual species. results indicate that degradation important factors determining ecological status communities. context, can impose point sources pollution affect cause alterations regime. Further management measures addressing both needed improve status.

Language: Английский

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