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All Outputs (42)

Climate variability and implications for keeping rivers cool in England (2020)
Journal Article
Wilby, R., & Johnson, M. (2020). Climate variability and implications for keeping rivers cool in England. Climate Risk Management, 30, Article 100259. https://doi.org/10.1016/j.crm.2020.100259

Water temperature (Tw) is a primary determinant of river ecosystem health and function that is strongly controlled by climate variability and change but mediated by catchment properties. We apply a nested analysis to: (1) evaluate how annual and seas... Read More about Climate variability and implications for keeping rivers cool in England.

Thermal sensitivity of feeding and burrowing activity of an invasive crayfish in UK waters (2020)
Journal Article
Rodríguez Valido, C. A., Johnson, M. F., Dugdale, S. J., Cutts, V., Fell, H. G., Higgins, E. A., …Algar, A. C. (2021). Thermal sensitivity of feeding and burrowing activity of an invasive crayfish in UK waters. Ecohydrology, 14(1), Article e2258. https://doi.org/10.1002/eco.2258

Climate change and invasive species are among the biggest threats to global biodiversity and ecosystem function. Although the individual impacts of climate change and invasive species are commonly assessed, we know far less about how a changing clima... Read More about Thermal sensitivity of feeding and burrowing activity of an invasive crayfish in UK waters.

A critical review of microplastic pollution in urban freshwater environments and legislative progress in China: recommendations and insights (2020)
Journal Article
Xu, Y., Ka Shun Chan, F., He, J., Johnson, M., Gibbins, C., Kay, P., …Zhu, Y. (2021). A critical review of microplastic pollution in urban freshwater environments and legislative progress in China: recommendations and insights. Critical Reviews in Environmental Science and Technology, 51(22), 2637-2680. https://doi.org/10.1080/10643389.2020.1801308

Freshwater systems are vitally important, supporting diversity and providing a range of ecosystem services. In China, rapid urbanization (over 800 million urban population) has led to multiple anthropogenic pressures that threaten urban freshwater en... Read More about A critical review of microplastic pollution in urban freshwater environments and legislative progress in China: recommendations and insights.

Freshwater microplastic concentrations vary through both space and time (2020)
Journal Article
Stanton, T., Johnson, M., Nathanail, P., MacNaughtan, W., & Gomes, R. L. (2020). Freshwater microplastic concentrations vary through both space and time. Environmental Pollution, 263, Article 114481. https://doi.org/10.1016/j.envpol.2020.114481

Plastic pollution represents one of the most salient indicators of society’s impact on the environment. The microplastic component of this is ubiquitous, however, microplastic studies are seldom representative of the locations they sample. Over 12 mo... Read More about Freshwater microplastic concentrations vary through both space and time.

Characterising the geomorphological and physicochemical effects of water injection dredging on estuarine systems (2020)
Journal Article
Pledger, A., Johnson, M., Brewin, P., Phillips, J., Martin, S., & Yu, D. (2020). Characterising the geomorphological and physicochemical effects of water injection dredging on estuarine systems. Journal of Environmental Management, 261, https://doi.org/10.1016/j.jenvman.2020.110259

Dredging is a globally important aquatic system management activity, used for navigation improvement, contamination removal, aggregate production and/or flood risk mitigation. Despite widespread application, understanding of the environmental effects... Read More about Characterising the geomorphological and physicochemical effects of water injection dredging on estuarine systems.

Exploring the Efficacy of Nile Red in Microplastic Quantification: A Costaining Approach (2019)
Journal Article
Stanton, T., Johnson, M., Nathanail, P., Gomes, R., Needham, T., & Burson, A. (2019). Exploring the Efficacy of Nile Red in Microplastic Quantification: A Costaining Approach. Environmental Science and Technology Letters, 6(10), 606-611. https://doi.org/10.1021/acs.estlett.9b00499

The presence of microplastic particles ([less than]5 mm) in the environment has generated considerable concern across public, political, and scientific platforms. However, the diversity of microplastics that persist in the environment poses complex a... Read More about Exploring the Efficacy of Nile Red in Microplastic Quantification: A Costaining Approach.

Biomic river restoration: A new focus for river management (2019)
Journal Article
Johnson, M. F., Thorne, C. R., Castro, J. M., Mathias Kondolf, G., Mazzacano, C. S., Rood, S. B., & Westbrook, C. (2020). Biomic river restoration: A new focus for river management. River Research and Applications, 36(1), 3-12. https://doi.org/10.1002/rra.3529

River management based solely on physical science has proven to be unsustainable and unsuccessful, evidenced by the fact that the problems this approach intended to solve (e.g., flood hazards, water scarcity, and channel instability) have not been so... Read More about Biomic river restoration: A new focus for river management.

Macroinvertebrate community structure as an indicator of phosphorus enrichment in rivers (2019)
Journal Article
Everall, N., Johnson, M., Wood, P., Paisley, M., Trigg, D., & Farmer, A. (2019). Macroinvertebrate community structure as an indicator of phosphorus enrichment in rivers. Ecological Indicators, 107, Article 105619. https://doi.org/10.1016/j.ecolind.2019.105619

Nutrient enrichment represents one of the most important causes of detriment to river ecosystem health globally. Monitoring nutrient inputs can be particularly challenging given the spatial and temporal heterogeneity of nitrogen and phosphorus concen... Read More about Macroinvertebrate community structure as an indicator of phosphorus enrichment in rivers.

Macroinvertebrate community structure as an indicator of phosphorus enrichment in rivers (2019)
Journal Article
EVERALL, N., JOHNSON, M., WOOD, P., PAISLEY, M., TRIGG, D., & FARMER, A. (2019). Macroinvertebrate community structure as an indicator of phosphorus enrichment in rivers. Ecological Indicators, 107, https://doi.org/10.1016/j.ecolind.2019.105619

Nutrient enrichment represents one of the most important causes of detriment to river ecosystem health globally. Monitoring nutrient inputs can be particularly challenging given the spatial and temporal heterogeneity of nitrogen and phosphorus concen... Read More about Macroinvertebrate community structure as an indicator of phosphorus enrichment in rivers.

The impact of biological bedforms on near-bed and subsurface flow: a laboratory evaluated numerical study of flow in the vicinity of pits and mounds (2019)
Journal Article
Han, X., Fang, H., Johnson, M., & Rice, S. (2019). The impact of biological bedforms on near-bed and subsurface flow: a laboratory evaluated numerical study of flow in the vicinity of pits and mounds. Journal of Geophysical Research: Earth Surface, 124(7), 1939-1957. https://doi.org/10.1029/2019JF005000

The complex surface topography of river substrates controls near-bed hydraulics and drives the exchange of subsurface and surface flow. In rivers, the topographic structures that are studied are usually formed by the flow but, it is known that many a... Read More about The impact of biological bedforms on near-bed and subsurface flow: a laboratory evaluated numerical study of flow in the vicinity of pits and mounds.

The zoogeomorphology of case?building caddisfly: Quantifying sediment use (2019)
Journal Article
Mason, R. J., Rice, S. P., Wood, P. J., & Johnson, M. F. (2019). The zoogeomorphology of case?building caddisfly: Quantifying sediment use. Earth Surface Processes and Landforms, 44(12), 2510-2525. https://doi.org/10.1002/esp.4670

Caddisfly (Trichoptera) larvae are an abundant and widespread aquatic insect group characterised by the construction of silk structures, including nets and cases. Case‐building caddisfly have the potential to modify the sorting and mobility of sand a... Read More about The zoogeomorphology of case?building caddisfly: Quantifying sediment use.

Freshwater and airborne textile fibre populations are dominated by ‘natural’, not microplastic, fibres (2019)
Journal Article
Stanton, T., Johnson, M., Nathanail, P., MacNaughtan, W., & Gomes, R. L. (2019). Freshwater and airborne textile fibre populations are dominated by ‘natural’, not microplastic, fibres. Science of the Total Environment, 666, 377-389. https://doi.org/10.1016/j.scitotenv.2019.02.278

The potential role of natural textile fibres as environmental pollutants has been speculated upon by some environmental scientists, however, there is a general consensus that their biodegradability reduces their environmental threat. Whilst the risks... Read More about Freshwater and airborne textile fibre populations are dominated by ‘natural’, not microplastic, fibres.

Sensitivity of the early life stages of a mayfly to fine sediment and orthophosphate levels (2017)
Journal Article
Everall, N. C., Johnson, M. F., Wood, P., & Mattingley, L. (2018). Sensitivity of the early life stages of a mayfly to fine sediment and orthophosphate levels. Environmental Pollution, 237, 792-802. https://doi.org/10.1016/j.envpol.2017.10.131

The ecological effects of interacting stressors within lotic ecosystems have been widely acknowledged. In particular, the ecological effects of elevated fine sediment inputs and phosphate have been identified as key factors influencing faunal communi... Read More about Sensitivity of the early life stages of a mayfly to fine sediment and orthophosphate levels.

Comparability of macroinvertebrate biomonitoring indices of river health derived from semi-quantitative and quantitative methodologies (2017)
Journal Article
Everall, N. C., Johnson, M. F., Wood, P., Farmer, A., Wilby, R. L., & Measham, N. (2017). Comparability of macroinvertebrate biomonitoring indices of river health derived from semi-quantitative and quantitative methodologies. Ecological Indicators, 78, 437-448. https://doi.org/10.1016/j.ecolind.2017.03.040

Aquatic macroinvertebrates have been the basis for one of the primary indicators and a cornerstone of lotic biomonitoring for over 40 years. Despite the widespread use of lotic invertebrates in statutory biomonitoring networks, scientific research an... Read More about Comparability of macroinvertebrate biomonitoring indices of river health derived from semi-quantitative and quantitative methodologies.

The importance of biotic entrainment for base flow fluvial sediment transport (2016)
Journal Article
Rice, S. P., Johnson, M. F., Mathers, K., Reeds, J., & Extence, C. (2016). The importance of biotic entrainment for base flow fluvial sediment transport. Journal of Geophysical Research: Earth Surface, 121(5), 890-906. https://doi.org/10.1002/2015JF003726

Sediment transport is regarded as an abiotic process driven by geophysical energy, but zoogeomorphological activity indicates that biological energy can also fuel sediment movements. It is therefore prudent to measure the contribution that biota make... Read More about The importance of biotic entrainment for base flow fluvial sediment transport.

Seeing the landscape for the trees: metrics to guide riparian shade management in river catchments (2015)
Journal Article
Johnson, M. F., & Wilby, R. L. (2015). Seeing the landscape for the trees: metrics to guide riparian shade management in river catchments. Water Resources Research, 51(5), https://doi.org/10.1002/2014WR016802

Rising water temperature (Tw) due to anthropogenic climate change may have serious consequences for river ecosystems. Conservation and/or expansion of riparian shade could counter warming and buy time for ecosystems to adapt. However, sensitivity of... Read More about Seeing the landscape for the trees: metrics to guide riparian shade management in river catchments.

What else do managers need to know about warming rivers? A United Kingdom perspective: Managing warming rivers (2015)
Journal Article
Orr, H. G., Johnson, M. F., Wilby, R. L., Hatton-Ellis, T., & Broadmeadow, S. (2015). What else do managers need to know about warming rivers? A United Kingdom perspective: Managing warming rivers. Wiley Interdisciplinary Reviews: Water, 2(2), 55-64. https://doi.org/10.1002/wat2.1062

River flow and water temperature are fundamental controls of freshwater ecosystems. Hence, future warming could impact valued habitats and species, particularly those with cold water preferences (such as salmonids). Warming could also exacerbate exis... Read More about What else do managers need to know about warming rivers? A United Kingdom perspective: Managing warming rivers.

Detecting phenology change in the mayfly Ephemera danica: responses to spatial and temporal water temperature variations (2014)
Journal Article
Everall, N. C., Johnson, M. F., Wilby, R. L., & Bennett, C. J. (2015). Detecting phenology change in the mayfly Ephemera danica: responses to spatial and temporal water temperature variations. Ecological Entomology, 40(2), https://doi.org/10.1111/een.12164

1. Rising water temperatures under climate change are expected to affect the phenology of aquatic insects, including the mayfly Ephemera danica Müller which is widespread throughout Europe. 2. To assess temporal and spatial variability in mayfly e... Read More about Detecting phenology change in the mayfly Ephemera danica: responses to spatial and temporal water temperature variations.