River ecological status is shaped by agricultural land use intensity across Europe

Water Research, Journal Year: 2024, Volume and Issue: 251, P. 121136 - 121136

Published: Jan. 21, 2024

Agriculture impacts the ecological status of freshwaters through multiple pressures such as diffuse pollution, water abstraction, and hydromorphological alteration, strongly impairing riverine biodiversity. The agricultural effects, however, likely differ between types practices. In Europe, show distinct spatial patterns related to intensity, biophysical conditions, socioeconomic history, which have been operationalised by various landscape typologies. Our study aimed at analysing whether incorporating intensity enhances correlation land use status. For this, we aggregated continent's activities into 20 Areas Farming-induced Freshwater Pressures (AFFP), specifying individual pressure profiles regarding nutrient enrichment, pesticides, in riparian zone establish an index this river Using index, nearly doubled correlative strength agriculture rivers compared share sub-catchment (based on analysis more than 50,000 units). Strongest were found for high cropland Mediterranean Temperate regions, while extensive grassland, fallow farmland livestock farming Northern Highland well low mosaic farming, featured lowest pressures. results provide advice pan-European management freshwater ecosystems highlight urgent need sustainable agriculture. Consequently, they can also be used a basis European Union-wide global policies halt biodiversity decline, post-2027 renewal Common Agricultural Policy.

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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Retos y oportunidades para la evaluación del estado ecológico en ríos temporales

Ecosistemas, Journal Year: 2024, Volume and Issue: unknown, P. 2655 - 2655

Published: March 9, 2024

Los ríos temporales (RTs) son ecosistemas fluviales en los que efectos de las perturbaciones antrópicas se mezclan con la propia perturbación natural impone temporalidad del flujo. A pesar avances el conocimiento RTs, todavía persisten muchas lagunas limitan desarrollo metodologías adecuadas para evaluación su estado ecológico. En esta revisión identificamos retos actuales correcta ecológico RTs y analizamos oportunidades existentes hacerles frente. Estos centran en: diferenciación entre naturales o hidrológicamente impactados, antrópicas, índices biológicos pozas desconectadas cauces secos, adaptación hidrogeomorfológicos, aplicación teoría metacomunidades RTs. Las están relacionadas con: uso nuevas herramientas moleculares, existencia alternativos a tradicionales, disponibilidad datos poder hacer modelización, implicación social hidrológico La centra mayoritariamente científico gestión acumulado desde implementación DMA España, pero recoge experiencias otros mundo guiar acciones conservación estos únicos altamente amenazados por cambio global.

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Assessing the ecological health of the upper and middle Awash River, Ethiopia, using benthic macroinvertebrates community structure and selected environmental variables

Environmental Monitoring and Assessment, Journal Year: 2023, Volume and Issue: 196(1)

Published: Dec. 16, 2023

Language: Английский

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European river typologies fail to capture diatom, fish, and macrophyte community composition

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 896, P. 165081 - 165081

Published: June 24, 2023

Language: Английский

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Spatial variation in the sensitivity of freshwater macroinvertebrate assemblages to chemical stressors

Water Research, Journal Year: 2023, Volume and Issue: 248, P. 120854 - 120854

Published: Nov. 10, 2023

Assessing spatial variation in the chemical sensitivity of natural assemblages will enhance ecological relevance and reduce uncertainty risk assessments derivation environmental quality standards (EQSs). However, majority species communities have not undergone toxicity testing for any chemical, which poses a major challenge when assessing their sensitivity. We investigated patterns 4084 freshwater macroinvertebrate across England to 5 general-acting chemicals (heavy metals) 13 specifically acting (insecticides) using novel hierarchical distribution method based on taxonomic relatedness. Furthermore, we explored how river typology relates assemblage potential impacts such current EQSs. Our findings revealed that, whereas with similar compositions exhibit comparable distributions, different could very or distributions. The was greater than exhibited clustering patterns. These varied depending regions where were most sensitive metals generally same as insecticides. Spatial related being more common expected lowland calcareous (or mixed geology) rivers within small catchments. Comparing assemblage-specific EQSs, found that operational EQSs would protect study (i.e., > 99.5 %), although proportion may face risks associated azinphos-methyl, copper, malathion. In many cases precautionary, potentially requiring expensive control measures restricting beneficial use no additional benefit. development spatially defined possibly types, be developed target areas require highest level protection thus strike balance between benefits protection.

Language: Английский

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Spatial variation in the community structure and response of benthic macroinvertebrates to multiple environmental factors in mountain rivers

Journal of Environmental Management, Journal Year: 2023, Volume and Issue: 341, P. 118027 - 118027

Published: May 2, 2023

Language: Английский

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Europe-wide spatial trends in copper and imidacloprid sensitivity of macroinvertebrate assemblages

Environmental Sciences Europe, Journal Year: 2024, Volume and Issue: 36(1)

Published: June 25, 2024

Abstract Exposure to synthetic chemicals, such as pesticides and pharmaceuticals, affects freshwater communities at broad spatial scales. This risk is commonly managed in a prospective environmental assessment (ERA). Relying on generic methods, few standard test organisms, safety factors account for uncertainty, ERA determines concentrations that are assumed pose low risks ecosystems. Currently, this procedure neglects potential variation assemblage sensitivity among ecosystem types recommends single low-risk concentration each compound. Whether systematic differences exist or their size, currently unknown. Elucidating patterns chemicals could therefore enhance precision narrow fundamental knowledge gap ecology, the Hutchinsonian shortfall. We analyzed whether taxonomic turnover between field-sampled macroinvertebrate assemblages of different river across Europe results copper imidacloprid. used an extensive database compositions throughout employed hierarchical species distribution model predict would be harmful 5% taxa (HC 5 ) assemblage. Predicted $$H{C}_{5}$$ H C 5 values varied over several orders magnitude. However, within 95% highest density intervals remained one order Differences were minor imidacloprid only slightly higher copper. The largest difference river-type-specific median was factor 3.1. level below recommended by European Food Safety Authority captured current plant protection products. conclude composition translate into relatively small toward evaluated scale. bioavailability multi-stressor context not might exacerbate ecological effects real-world

Language: Английский

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Typical earthworm assemblages of European ecosystem types

European Journal of Soil Science, Journal Year: 2024, Volume and Issue: 75(5)

Published: Sept. 1, 2024

Abstract For nature conservation and planning, terrestrial ecosystems are commonly classified based on their plant communities. Although soils fundamental to ecosystem functioning, classifications soil organisms rare, it is poorly understood whether assemblage compositions follow existing classification schemes. We examined used types capture variation in earthworm (Lumbricidae) assemblages—a crucial biotic component of ecosystems. To this end, we created four by combining large‐scale climatic (Biogeographic Regions [BGR] Holdridge Life Zones [HLZ]) with small‐scale land cover (CORINE Land Cover [CLC] European Nature Information System [EUNIS]). data from the sWORM Edaphobase databases were analysed for composition within among types, using Permutational Analysis Variance Similarities. Additionally, Typical Species establish typical assemblages (TAs) each type. Ecosystem BGR explained more variance than HLZ, but HLZ showed a higher separation between types. The differentiation Atlantic Continental climates could explain superiority over which had only one category cool temperate zone our study region. contained average six species, some habitat generalists present most. This shows that combinations properties different spatial scales can be distinguish at level. However, across Europe highly similar due low species richness dominance few widespread species. limits possibility applying TAs large scales, example, environmental monitoring. suggest future studies should explore use species‐rich groups characterize

Language: Английский

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Assessing the extent to which African wetland inventories can report to the global targets on biodiversity, including Goal A of the Global Biodiversity Framework

African Journal of Aquatic Science, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 8

Published: Oct. 3, 2024

Language: Английский

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