Allometric scaling of hyporheic respiration across basins in the Pacific Northwest USA DOI Creative Commons
Peter Regier, Kyongho Son, Xingyuan Chen

et al.

Authorea (Authorea), Journal Year: 2024, Volume and Issue: unknown

Published: March 27, 2024

Hyporheic zones regulate biogeochemical processes in streams and rivers, but high spatiotemporal heterogeneity makes it difficult to predict how these scale from individual reaches river basins.Recent work applying allometric scaling (i.e., power-law relationships between size function) networks provides a new paradigm develop scalable understanding of hyporheic processes.We used reach-scale aerobic respiration estimates explore patterns across two basins, related watershed characteristics.We found consistent behaviors at lowest highest exchange flux (HEF) quantiles, HEF-dependent elevation, precipitation, land-cover.Our results also suggest variability allometry for middle relation findings provide initial evidence that may be useful predicting dynamics watersheds reach basin scales. Scientific Significance Statement:The zone is control point like are important determinants move process carbon nutrients.However, the characterized by spatial heterogeneity, which functions change scales.This study applies theory, suggests function scales predictable way with size, determine if area basins contrasting some tool transferable knowledge note site-specific constrain generalizability this method other regions watersheds.

Language: Английский

Rising water temperature in rivers: Ecological impacts and future resilience DOI Creative Commons
Matthew F. Johnson, Lindsey K. Albertson, Adam C. Algar

et al.

Wiley Interdisciplinary Reviews Water, Journal Year: 2024, Volume and Issue: 11(4)

Published: March 5, 2024

Abstract Rising water temperatures in rivers due to climate change are already having observable impacts on river ecosystems. Warming has both direct and indirect aquatic life, further aggravates pervasive issues such as eutrophication, pollution, the spread of disease. Animals can survive higher through physiological and/or genetic acclimation, behavioral phenological change, range shifts more suitable locations. As such, those animals that adapted cool‐water regions typically found high altitudes latitudes where there fewer dispersal opportunities most at risk future extinction. However, sub‐lethal animal physiology phenology, body‐size, trophic interactions could have significant population‐level effects elsewhere. Rivers vulnerable warming because historic management left them exposed solar radiation removal riparian shade, hydrologically disconnected longitudinally, laterally, vertically. The resilience riverine ecosystems is also limited by anthropogenic simplification habitats, with implications for resource use resident organisms. Due complex ecosystems, species‐specific response organisms warming, predicting how will challenging. Restoring provide connectivity heterogeneity conditions would a expected co‐occurring pressures, including should be considered priority part global strategies adaptation mitigation. This article categorized under: Science Water > Environmental Change Life Nature Freshwater Ecosystems Stresses Pressures

Language: Английский

Citations

34
Non-perennial segments in river networks DOI
Thibault Datry, Andrew J. Boulton, Ken M. Fritz

et al.

Nature Reviews Earth & Environment, Journal Year: 2023, Volume and Issue: 4(12), P. 815 - 830

Published: Nov. 23, 2023

Language: Английский

Citations

27
Groundwater-Surface water interactions research: Past trends and future directions DOI Creative Commons
Dylan J. Irvine, Kamini Singha, Barret L. Kurylyk

et al.

Journal of Hydrology, Journal Year: 2024, Volume and Issue: unknown, P. 132061 - 132061

Published: Sept. 1, 2024

Language: Английский

Citations

9
Changes in Water Age During Dry‐Down of a Non‐Perennial Stream DOI Creative Commons
Logan J. Swenson, Samuel C. Zipper, Delaney Peterson

et al.

Water Resources Research, Journal Year: 2024, Volume and Issue: 60(1)

Published: Jan. 1, 2024

Abstract Non‐perennial streams, which lack year‐round flow, are widespread globally. Identifying the sources of water that sustain flow in non‐perennial streams is necessary to understand their potential impacts on downstream resources, and guide policy management. Here, we used isotopes (δ 18 O δ 2 H) two different modeling approaches investigate spatiotemporal dynamics young fractions ( F yw ) a stream network at Konza Prairie (KS, USA) during 2021 summer dry‐down season, as well over several years with varying hydrometeorological conditions. Using Bayesian model, found substantial amount : 39.1–62.6%) sustained flows headwaters catchment outlet year, while 2015–2022 contributions estimated using sinusoidal models indicated smaller amounts (15.3% ± 5.7). Both indicate releases highly sensitive hydrological conditions, shifting older dries. The shift age suggests away from rapid fracture toward slower matrix creates but localized surface presence late reflected annual outlet. proportion highlights vulnerability short‐term hydroclimatic change, reveals sensitivity longer‐term changes groundwater dynamics. Combined, this local may propagate through networks influence availability quality.

Language: Английский

Citations

6
A hydrological framework for persistent pools along non-perennial rivers DOI Creative Commons
Sarah A. Bourke, Margaret Shanafield,

Paul Hedley

et al.

Hydrology and earth system sciences, Journal Year: 2023, Volume and Issue: 27(3), P. 809 - 836

Published: Feb. 15, 2023

Abstract. Persistent surface water pools along non-perennial rivers represent an important resource for plants, animals, and humans. While ecological studies of these features are not uncommon, rarely accompanied by a rigorous examination the hydrological hydrogeological characteristics that create or support persistent river pools. Here we present overarching framework understanding hydrology Perched water, alluvial throughflow, groundwater discharge key hydraulic mechanisms control persistence channels. Groundwater can be further categorized into controlled geological contact barrier topography. Emphasis is put on clearly defining throughflow different drivers discharge. The suite regional-scale pool-scale diagnostic tools available elucidating summarized critiqued. Water fluxes to supported vary spatially temporally, quantitatively resolving pool balance components commonly non-trivial. This allows evaluation susceptibility channels changes in climate withdrawals. Finally, demonstrate application this using conduct regional assessment Hamersley Basin north-western Australia.

Language: Английский

Citations

14
The effects of drought on biodiversity in UK river ecosystems: Drying rivers in a wet country DOI Creative Commons
Rachel Stubbington, Judy England, Romain Sarremejane

et al.

Wiley Interdisciplinary Reviews Water, Journal Year: 2024, Volume and Issue: 11(5)

Published: July 9, 2024

Abstract Climate change is interacting with water resource pressures to alter the frequency, severity and spatial extent of drought, which can thus no longer be considered a purely natural hazard. Although particularly severe ecological impacts drought have occurred in drylands, its effects on temperate ecosystems, including rivers, are also considerable. Extensive research spanning diverse range UK rivers offers an opportunity place past context intensifying climate examine likely future typically cool, wet country. Here, manifests instream as deficits surface water, modified flow velocities, and—increasingly—partial or complete drying previously perennial naturally non‐perennial reaches. As result, causes declines taxonomic functional biodiversity freshwater communities microorganisms, algae, plants, invertebrates fish, altering processes associated benefits people. recovered quickly after previous droughts, increase extremity may compromise recovery following events. The risk droughts that push ecosystems beyond thresholds persistent, species‐poor, functionally simplified states increasing. Research monitoring needed enable timely identification approaching such inform interventions pull these back from brink. Management actions support regimes promote diversify habitats, refuges, crucial within river they adapt changing world. This article categorized under: Water Life > Nature Freshwater Ecosystems Stresses Pressures Conservation, Management, Awareness

Language: Английский

Citations

5
The unknown biogeochemical impacts of drying rivers and streams DOI Creative Commons
Margaret Zimmer, Amy J. Burgin, Kendra E. Kaiser

et al.

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

Published: Nov. 24, 2022

Non-perennial rivers and streams - those that periodically cease flowing are critical components of aquatic systems comprise over half global river stream systems. We argue for coordinated, collaborative, standardized, open efforts to understand their unique biogeochemical behaviour, which is becoming ever more pressing due pronounced shifts between wet dry as the climate changes. Rivers increasingly drying with change impacts may be important. In this comment authors discuss challenges biogeochemistry non-perennial streams, what can done tackle them.

Language: Английский

Citations

22
Nonlinear trends in signatures characterizing non-perennial US streams DOI
Kanak Kanti Kar, Tirthankar Roy, Samuel C. Zipper

et al.

Journal of Hydrology, Journal Year: 2024, Volume and Issue: 635, P. 131131 - 131131

Published: April 2, 2024

Language: Английский

Citations

4
Biogeochemical and community ecology responses to the wetting of non-perennial streams DOI
Adam N. Price, Margaret Zimmer, Anna Bergstrom

et al.

Nature Water, Journal Year: 2024, Volume and Issue: 2(9), P. 815 - 826

Published: Sept. 19, 2024

Language: Английский

Citations

4
Organic molecules are deterministically assembled in variably inundated river sediments, but drivers remain unclear DOI Creative Commons
James Stegen, Vanessa Garayburu‐Caruso, Robert Danczak

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Feb. 5, 2025

Dissolved organic matter (DOM) is vital to ecosystem functions, influencing nutrient cycles and water quality. Understanding the processes driving DOM chemistry variation remains a challenge. By examining these through community ecology perspective, we aim understand balance between stochastic forces (e.g., random mixing of DOM) deterministic systematic loss certain types molecules) shaping chemistry. Previous research on influences over applied null models aquatic environments subsurface pore water. Our study extends this variably inundated riverbed sediments, which are widespread globally. We studied 38 river reaches across biomes, finding that within most sites was governed by were highly localized led spatial divergence in each reach. The degree determinism varied substantially hypothesized related differences sediment moisture. findings partially supported this, showing upper limit decreased with increasing integrated our results previous studies develop post-hoc conceptual model proposing assemblages become more along continuum from saturated spaces drier sediments or soils. This aligns work linking Damköhler number hydrologic connectivity, suggesting generalizable patterns can be further revealed quantifying stochastic-deterministic space, time, scales.

Language: Английский

Citations

0