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Stubbington, R. 
ORCID: 0000-0001-8475-5109, England, J., Sarremejane, R. ORCID: 0000-0002-4943-1173, Watts, G. and Wood, P.,
2024.
The effects of drought on biodiversity in UK river ecosystems: drying rivers in a wet country.
WIREs Water: e1745.
ISSN 2049-1948
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1913448_Stubbington.pdf - Published version Download (9MB) | Preview |
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 of drought have occurred in drylands, its effects on temperate ecosystems, including rivers, are also considerable. Extensive research spanning a diverse range of UK rivers offers an opportunity to place the effects of past drought in the context of intensifying climate change and to examine the likely effects of future drought in a typically cool, wet country. Here, drought manifests instream as deficits in surface water, modified flow velocities, and—increasingly—partial or complete drying of previously perennial and naturally non-perennial reaches. As a result, drought causes declines in the taxonomic and functional biodiversity of freshwater communities including microorganisms, algae, plants, invertebrates and fish, altering ecological processes and associated benefits to people. Although freshwater communities have typically recovered quickly after previous UK droughts, an increase in drought extremity may compromise recovery following future events. The risk of droughts that push ecosystems beyond thresholds to persistent, species-poor, functionally simplified states is increasing. Research and monitoring are needed to enable timely identification of rivers approaching such thresholds and thus to inform interventions that pull these ecosystems back from the brink. Management actions that support natural flow regimes and promote natural processes that diversify instream habitats, including drought refuges, are also crucial to support biodiversity within functional river ecosystems as they adapt to a changing world.
| Item Type: | Journal article | ||||||
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| Publication Title: | WIREs Water | ||||||
| Creators: | Stubbington, R., England, J., Sarremejane, R., Watts, G. and Wood, P. | ||||||
| Publisher: | Wiley | ||||||
| Date: | 9 July 2024 | ||||||
| ISSN: | 2049-1948 | ||||||
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| Rights: | © 2024 The Author(s). WIREs Water published by Wiley Periodicals LLC. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. | ||||||
| Divisions: | Schools > School of Science and Technology | ||||||
| Record created by: | Jonathan Gallacher | ||||||
| Date Added: | 15 Jul 2024 09:15 | ||||||
| Last Modified: | 15 Jul 2024 09:15 | ||||||
| URI: | https://irep.ntu.ac.uk/id/eprint/51750 |
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