Plastic rain in protected areas of the United States

Science, Journal Year: 2020, Volume and Issue: 368(6496), P. 1257 - 1260

Published: June 11, 2020

Eleven billion metric tons of plastic are projected to accumulate in the environment by 2025. Because plastics persistent, they fragment into pieces that susceptible wind entrainment. Using high-resolution spatial and temporal data, we tested whether deposited wet versus dry conditions have distinct atmospheric life histories. Further, report on rates sources deposition remote U.S. conservation areas. We show urban centers resuspension from soils or water principal for wet-deposited plastics. By contrast, under were smaller size, related indices suggest longer-range global transport. Deposition averaged 132 per square meter day, which amounts >1000 western protected lands annually.

Language: Английский

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Microplastic pollution in mountain terrains and foothills: A review on source, extraction, and distribution of microplastics in remote areas

Environmental Research, Journal Year: 2021, Volume and Issue: 207, P. 112232 - 112232

Published: Oct. 21, 2021

Language: Английский

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Scientists' warning of threats to mountains

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 853, P. 158611 - 158611

Published: Sept. 7, 2022

Language: Английский

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Unveiling spatial heterogeneity of ecosystem services and their drivers in varied landform types: Insights from the Sichuan-Yunnan ecological barrier area

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 442, P. 141158 - 141158

Published: Feb. 1, 2024

Language: Английский

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The old and the new on threats to high-mountain lakes in the Alps: A comprehensive examination with future research directions

Ecological Indicators, Journal Year: 2024, Volume and Issue: 160, P. 111812 - 111812

Published: Feb. 27, 2024

The high-mountain lakes of the Alps, perched like glistening gems in cradle Europe's most formidable mountain range, have for generations epitomized nature's majesty. These remote and pristine bodies water served as invaluable sentinels global change, repositories geological history, sources freshwater surrounding regions. Yet, despite their seemingly imperturbable beauty seclusion, these are not immune to evolving forces our changing world. Re-emerging threats, exacerbated by relentless march climate change intensified human activities, cast a shadow over future, posing profound challenges that demand attention. aim this perspective is shed light on main emerging raise awareness, advocate proactive actions aimed at preserving protecting lakes. threats include retreat glaciers, UV radiation, long-range transport contaminants, impact alien species usage Alpine storage power stations. Additionally, increased tourism recreational activities environments can cause habitat disturbance, further endangering unique ecosystems. present article also offers valuable perspectives necessity monitoring research efforts Such crucial comprehending ecological well-being ecosystems, evaluating consequences environmental shifts, devising successful conservation strategies.

Language: Английский

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First insights into plastic and microplastic occurrence in biotic and abiotic compartments, and snow from a high-mountain lake (Carnic Alps)

Chemosphere, Journal Year: 2020, Volume and Issue: 265, P. 129121 - 129121

Published: Nov. 26, 2020

Language: Английский

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Insects in high‐elevation streams: Life in extreme environments imperiled by climate change

Global Change Biology, Journal Year: 2020, Volume and Issue: 26(12), P. 6667 - 6684

Published: Sept. 28, 2020

Abstract Climate change is altering conditions in high‐elevation streams worldwide, with largely unknown effects on resident communities of aquatic insects. Here, we review the challenges climate for insects and how they may respond, focusing current gaps knowledge. Understanding predicting future impacts will depend progress three areas. First, need better descriptions multivariate physical interactions among streams, which include low but rising temperatures, oxygen supply increasing demand, high exposure to ultraviolet radiation, ionic strength, variable shifting flow regimes. These factors are often studied isolation even though covary nature interact space time. Second, a mechanistic understanding drive performance individual Environment‐performance links mediated by physiology behavior, poorly known taxa. Third, define scope importance potential responses across levels biological organization. Short‐term defined tolerances individuals, their capacities perform adequately range conditions, behaviors used exploit local, fine‐scale variation abiotic factors. Longer term change, however, plasticity evolution populations. Whether can mitigate climatic risks via these pathways unknown.

Language: Английский

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Multiple sources of aerobic methane production in aquatic ecosystems include bacterial photosynthesis

Nature Communications, Journal Year: 2022, Volume and Issue: 13(1)

Published: Oct. 29, 2022

Abstract Aquatic ecosystems are globally significant sources of the greenhouse gas methane to atmosphere. Until recently, production was thought be a strictly anaerobic process confined primarily anoxic sediments. However, supersaturation in oxygenated waters has been consistently observed lakes and ocean (termed ‘methane paradox’), indicating that can produced under oxic conditions through unclear mechanisms. Here we show aerobic from multiple freshwater incubation experiments different treatments based on biogeochemical, metagenomic, metatranscriptomic data. We find appears associated with (bacterio)chlorophyll metabolism photosynthesis, as well Proteobacterial degradation methylphosphonate. Genes encoding pathways for putative photosynthetic- methylphosphonate-based also co-occur metagenome-assembled genomes. Our findings provide insight into known mechanisms production, suggest potential co-occurring mechanism bacterial photosynthesis aquatic ecosystems.

Language: Английский

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Microplastics in biotic and abiotic compartments of high-mountain lakes from Alps

Ecological Indicators, Journal Year: 2023, Volume and Issue: 150, P. 110215 - 110215

Published: April 6, 2023

Microplastic (MP) pollution is a major environmental concern for mountain ecosystem and high-mountain lakes in particular, which are recognized indicators of global change. In this study, the presence MPs was assessed abiotic (water sediment) biotic (zooplankton, tadpoles, fish) compartments two (Upper Lake Balma Lower Balma) Cottian Alps (northwest Italy). No were found water zooplankton samples, whereas mean sediment samples 1.33 ± 0.67 items/m3 1.75 0.62 Upper Balma, respectively. The tadpoles Rana temporaria 0.33 0.58 items/individual 0.66 number items gastrointestinal tract (GIT) fish (Salvelinus fontinalis) considerably higher specimens from (0.45 items/g GIT) than those (0.20 GIT). There negative relationship between size (weight age) abundance GIT fish, indicating that young accumulated more MP probably due to high prey ingestion rate compared adults. same color (blue, white, black), shape (fibers fragments), chemical type (polypropylene polyethylene) both lakes. Our findings suggest use S. fontinalis as an indicator Further studies needed better understand sources effects these remote ecosystems.

Language: Английский

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Review: mountain lakes as freshwater resources at risk from chemical pollution

Environmental Sciences Europe, Journal Year: 2023, Volume and Issue: 35(1)

Published: Jan. 13, 2023

Abstract Background Chemical pollution forms a severe threat for human and environmental health. While the risks European lowland water bodies are well known, there is little knowledge on remote aquatic ecosystems particularly mountain lakes, despite their importance provision of freshwater. Here, we critically review current exposure risk by chemical lakes present tiered approach how to advance effectively our understanding in future. Results Generally, pollutant monitoring data currently incomplete, with many regions substances having been only poorly investigated. More reliable exist persistent organic pollutants (POPs). However, increasing evidence that even exposed wide range pollutants. Among them potent pesticides used agricultural biocidal applications, such as diazinon permethrin. The follows complex pattern. Pollutants introduced into via atmospheric deposition run-off from watershed, but also local sources, like tourism pastoralism. Our assessment recent biomonitoring studies suggest widespread chronic toxic crustacean ranges. If ranges pastoralism, acute effects possible. Thereby, vulnerability has be expected high due harsh conditions at altitudes, organism’s traits, insular position lower species richness altitudes. Furthermore, biological processes leading degradation under ecological ecosystems. Conclusion sensitivity investigated, existing it very likely do suffer pollution-induced toxicity. To verify this suggestion expand knowledge, necessary future combine more holistic modelling links effects. Only then will possible obtain impact protect these fragile

Language: Английский

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