Global prevalence of non-perennial rivers and streams

Nature, Год журнала: 2021, Номер 594(7863), С. 391 - 397

Опубликована: Июнь 16, 2021

Язык: Английский

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Impact of land use and climate change on water-related ecosystem services in Kentucky, USA

Ecological Indicators, Год журнала: 2019, Номер 102, С. 51 - 64

Опубликована: Фев. 18, 2019

Язык: Английский

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Multiple stressors determine river ecological status at the European scale: Towards an integrated understanding of river status deterioration

Global Change Biology, Год журнала: 2020, Номер 27(9), С. 1962 - 1975

Опубликована: Дек. 29, 2020

Abstract The biota of European rivers are affected by a wide range stressors impairing water quality and hydro‐morphology. Only about 40% Europe's reach ‘good ecological status’, target set the Water Framework Directive (WFD) indicated biota. It is yet unknown how different in concert impact status relationship between differs river types. We linked intensity seven to recently measured data for more than 50,000 sub‐catchment units (covering almost 80% surface area), which were distributed among 12 broad Stressor either derived from remote sensing (extent urban agricultural land use riparian zone) or modelled (alteration mean annual flow base flow, total phosphorous load, nitrogen load mixture toxic pressure, composite metric substances), while on taken national statutory reporting second WFD River Basin Management Plans years 2010–2015. used Boosted Regression Trees link stressor intensities. explained average 61% deviance individual types, with all contributing considerably this explanation. On average, 39.4% was altered hydro‐morphology (morphology: 23.2%; hydrology: 16.2%), 34.4% nutrient enrichment 26.2% substances. More half interaction, substances interacting most frequently strongly. Our results underline that types determined co‐occurring multiple stressors, lending support conclusion fundamental management strategies at catchment scale required ambitious objective good waters.

Язык: Английский

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Environmental DNA and environmental RNA: Current and prospective applications for biological monitoring

The Science of The Total Environment, Год журнала: 2021, Номер 782, С. 146891 - 146891

Опубликована: Апрель 5, 2021

Язык: Английский

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Intermittent rivers and ephemeral streams: Perspectives for critical zone science and research on socio‐ecosystems

Wiley Interdisciplinary Reviews Water, Год журнала: 2021, Номер 8(4)

Опубликована: Май 4, 2021

Abstract Intermittent rivers and ephemeral streams (IRES) are now recognized to support specific freshwater biodiversity ecosystem services represent approximately half of the global river network, a fraction that is likely increase in context changes. Despite large research efforts on IRES during past few decades, there need for developing systemic approach considers their hydrological, hydrogeological, hydraulic, ecological, biogeochemical properties processes, as well interactions with human societies. Thus, we assert interdisciplinary promoted by critical zone sciences socio‐ecology relevant. These approaches rely infrastructure—Critical Zone Observatories (CZO) Long‐Term Socio‐Ecological Research (LTSER) platforms—that representative diversity (e.g., among climates or types geology. We illustrate this within French CZO LTSER, including socio‐ecosystems, detail IRES. networks also specialized long‐term observations required detect measure responses climate forcings despite delay buffering effects ecosystems. The LTSER platforms development innovative techniques data analysis methods can improve characterization IRES, particular monitoring flow regimes, groundwater‐surface water flow, biogeochemistry rewetting. provide scientific methodological perspectives which its associated infrastructure would relevant original insights help fill knowledge gaps about This article categorized under: Water Life > Stresses Pressures Ecosystems Science Hydrological Processes Conservation, Management, Awareness

Язык: Английский

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Conservation and Management of Isolated Pools in Temporary Rivers

Water, Год журнала: 2020, Номер 12(10), С. 2870 - 2870

Опубликована: Окт. 15, 2020

Temporary rivers are characterized by shifting habitats between flowing, isolated pools, and dry phases. Despite the fact that temporary currently receiving increasing attention researchers managers, pools phase has been largely disregarded. However, in transitional of major ecological relevance as they support aquatic ecosystems during no-flow periods, can act refugees for maintaining local regional freshwater biodiversity. Pool characteristics such surface water permanence size, presence predators, physicochemical conditions, time since disconnection from river flow, or distance to other challenge a comprehensive understanding ecology these habitats, quality assessments conservation practices rivers. In this paper, we aim at providing characterization hydrological, geomorphological, physicochemical, biogeochemical, biological point view framework better conceptualize, conserve, manage habitats.

Язык: Английский

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River ecosystem conceptual models and non‐perennial rivers: A critical review

Wiley Interdisciplinary Reviews Water, Год журнала: 2020, Номер 7(5)

Опубликована: Авг. 28, 2020

Abstract Conceptual models underpin river ecosystem research. However, current focus on continuously flowing rivers and few explicitly address characteristics such as flow cessation drying. The applicability of existing conceptual to nonperennial that cease (intermittent ephemeral streams, IRES) has not been evaluated. We reviewed 18 models, finding they collectively describe main drivers biogeochemical ecological patterns processes longitudinally (upstream‐downstream), laterally (channel‐riparian‐floodplain), vertically (surface water‐groundwater), temporally across local landscape scales. perennial are continuous while IRES discontinuous. Whereas have bidirectional lateral connections between aquatic terrestrial ecosystems, in IRES, this connection is unidirectional for much the time, from terrestrial‐to‐aquatic only. Vertical connectivity surface subsurface water occurs bidirectionally consistent rivers. exchange variable, can become during drying or rewetting phases. Finally, adds another dimension variation be considered temporal spatial scales flooding a spatially dynamic process Here, we ways which could modified accommodate fundamental alter these dimensions streams. This perspective needed support science management our era rapid global change, including increasing duration, frequency, occurrence article categorized under: Water Life > Nature Freshwater Ecosystems Stresses Pressures Science Hydrological Processes

Язык: Английский

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A Metacommunity Approach to Improve Biological Assessments in Highly Dynamic Freshwater Ecosystems

BioScience, Год журнала: 2020, Номер 70(5), С. 427 - 438

Опубликована: Март 6, 2020

Rapid shifts in biotic communities due to environmental variability challenge the detection of anthropogenic impacts by current biomonitoring programs. Metacommunity ecology has potential inform such programs, because it combines dispersal processes with niche-based approaches and recognizes community composition. Using intermittent rivers-prevalent highly dynamic ecosystems that sometimes dry-we develop a conceptual model illustrate how limitation flow intermittence influence performance biological indices. We produce methodological framework integrating physical- organismal-based measurements into predictive modeling, development ecological quality assessments. Such metacommunity-based could be extended other are required underpin our capacity monitor protect threatened under future changes.

Язык: Английский

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Causes, Responses, and Implications of Anthropogenic versus Natural Flow Intermittence in River Networks

BioScience, Год журнала: 2022, Номер 73(1), С. 9 - 22

Опубликована: Дек. 7, 2022

Abstract Rivers that do not flow year-round are the predominant type of running waters on Earth. Despite a burgeoning literature natural intermittence (NFI), knowledge about hydrological causes and ecological effects human-induced, anthropogenic (AFI) remains limited. NFI AFI could generate contrasting biological responses in rivers because distinct underlying drying evolutionary adaptations their biota. We first review show how different drivers alter timing, frequency duration drying, compared with NFI. Second, we evaluate possible differences biodiversity responses, functions, ecosystem services between AFI. Last, outline gaps management needs related to Because hydrologic characteristics impacts AFI, ignoring distinction undermine intermittent ephemeral streams exacerbate risks ecosystems societies downstream.

Язык: Английский

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Non-perennial segments in river networks

Nature Reviews Earth & Environment, Год журнала: 2023, Номер 4(12), С. 815 - 830

Опубликована: Ноя. 23, 2023

Язык: Английский

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