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Hydrobiology
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Riverine Wetlands: Functioning and Threats in a Changing World
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Riverine Wetlands: Functioning and Threats in a Changing World

A special issue of Hydrobiology (ISSN 2673-9917).

Deadline for manuscript submissions: closed (25 November 2022) | Viewed by 5057

Special Issue Editor

Dr. Gudrun Bornette

E-Mail Website
Guest Editor
Laboratoire Chrono-Environnement-UMR CNRS 6249, Université de Franche-Comté, 16 route de Gray, 25030 Besançon, France
Interests: wetland functioning; aquatic plants; plant ecology; large rivers; ponds; functional ecology; health ecology

Special Issue Information

Dear Colleagues,

Riverine wetlands are unique, highly productive and diverse habitats in river floodplains. They perform a wide range of functions such as flood control, water purification, carbon storage, groundwater recharge, and water storage. In terms of biodiversity, they provide refuges for fauna in times of flooding, are food reservoirs and breeding sites, and participate in the dispersion of plant and animal species. Finally, in terms of biodiversity, thanks to the variability of the geomorphological, physicochemical, and hydrogeological contexts in which they are created, riverine wetlands offer a unique diversity of ecological situations that has no equivalent in other wetlands on similar scales. Alluvial wetlands are the scene of major issues concerning the goods offered to human populations, particularly in tropical and equatorial areas, and the health risks associated with the pathogens they are likely to harbor. The modification of large rivers, which has accelerated with the advent of motorized vehicles and the increase in the human occupation of alluvial valleys, has had a major impact on these alluvial ecosystems. The deforestation of alluvial valleys, the mechanization of agricultural practices and the advent of synthetic fertilizers have favored the filling in and eutrophication of alluvial wetlands. Finally, climate change, by affecting the availability of water resources and flood regimes, is endangering relict ecosystems.

The functional understanding of such ecosystems, the measurement of the risks associated with anthropic and climatic constraints on the goods and services they provide, but also how these constraints, by altering their functioning, favor the emergence of new risks (e.g., biological invasions, loss of biodiversity, health risks) necessitate interdisciplinary approaches associating ecology, Earth sciences, geography, health sciences, and human sciences.

This set of papers brings together a group of interdisciplinary and international researchers to develop together an integrated understanding of riverine wetlands, including their functioning, associated functions and services, and risks. Readers interested in rivers, floodplains, and restoration will be interested in this Special Issue, as well as those wanting to fuse an interdisciplinary approach to science with a progressive view of river corridor management.

Dr. Gudrun Bornette
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Hydrobiology is an international peer-reviewed open access quarterly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1000 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • non-equilibrium dynamics of riverine wetlands
  • physical drivers, biotic responses, and functioning of wetlands
  • alluvial ecosystems
  • diverse habitats
  • biological invasions

Published Papers (2 papers)

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Research

18 pages, 9813 KiB  
Article
Evaluation of Biogeochemical Changes in Channelized and Restored Portions of a Subtropical Floodplain
by Paul Julian II, Todd Z. Osborne and Rex Ellis
Hydrobiology 2023, 2(1), 1-18; https://0-doi-org.brum.beds.ac.uk/10.3390/hydrobiology2010001 - 20 Dec 2022
Viewed by 1311
Abstract
Floodplains are critically important ecosystems that provide a whole suite of ecosystem services, including nutrient and carbon sequestration, flood mitigation, water storage, and critical wildlife habitat. However, human modification of rivers and floodplains through channelization, artificial levee construction, reductions in the active floodplain [...] Read more.
Floodplains are critically important ecosystems that provide a whole suite of ecosystem services, including nutrient and carbon sequestration, flood mitigation, water storage, and critical wildlife habitat. However, human modification of rivers and floodplains through channelization, artificial levee construction, reductions in the active floodplain area, and water management can significantly reduce the ecosystem function of river–floodplain systems. In this study, we evaluated the changes in the nutrient loading of the Kissimmee River floodplain during the restoration of the river–floodplain system. In addition to time-series loading analysis, we also evaluated soil nutrient concentrations across the lower portion of the Kissimmee River floodplain. During the 44-year nutrient loading time-series, the floodplain remained a nutrient exporter with changes in nutrient loading generally corresponding to both water quality (i.e., point source reductions) and hydrologic restoration activities in the watershed and Kissimmee River floodplain. During the study period, inputs of total phosphorus and total nitrogen loads from upstream either significantly increased or remained the same. In addition to external sources of nutrients, internal sources of nutrients from floodplain soils can also contribute to the total nutrient export from the system. These internal sources could be organic via the decomposition of organic matter or geologic from the original excavation of the canal and/or restoration backfilling. Soil nutrient concentrations vary between vegetative communities and landscape position and could be a significant source of phosphorus to the downstream system, which is plagued by eutrophic conditions. Therefore, as floodplain function in the Kissimmee River continues to be restored and managed, additional effort may be needed to address nutrient inputs and internal legacy nutrients. Full article
(This article belongs to the Special Issue Riverine Wetlands: Functioning and Threats in a Changing World)
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15 pages, 1319 KiB  
Article
Interactions between Fish and Invertebrates in the Lowland Area of the Sava River following Excessive Change in Hydrological Regime
by Tea Tomljanović, Maria Špoljar, Farrukh Kattakulov, Tena Radočaj and Daniel Matulić
Hydrobiology 2022, 1(2), 196-210; https://0-doi-org.brum.beds.ac.uk/10.3390/hydrobiology1020015 - 21 Apr 2022
Cited by 1 | Viewed by 2017
Abstract
The littoral zones of freshwaters are highly susceptible to extreme hydrological fluctuations caused by climate-induced changes in the water cycle. Disturbances in the hydrology could affect fish assemblages and their trophic interactions with invertebrates, which constitute a large part of fish diets. In [...] Read more.
The littoral zones of freshwaters are highly susceptible to extreme hydrological fluctuations caused by climate-induced changes in the water cycle. Disturbances in the hydrology could affect fish assemblages and their trophic interactions with invertebrates, which constitute a large part of fish diets. In 2014 and 2015, the littoral zone of the Sava River (Croatia) was studied to determine the influence of hydrological extremes on (1) fluctuations in environmental drivers and biocoenoses, and (2) the trophic relationships between fish, macroinvertebrates and zooseston, in an attempt to reveal their trophic interactions. Biocoenotic components showed different tolerance to extreme discharge, resulting in remarkable reductions in fish abundance, diversity, biomass, size and, presumably due to dilution, the abundance of zooseston, which is an important food for fish larvae. By contrast, benthic macroinvertebrates did not show significant fluctuations in abundance, but the share of benthic groups of organisms was shifted during high discharge. Gastropods and amphipods were found to be important food sources for fish. The present study helps to highlight the consequences of hydrological disturbances caused by climate change: the enhancement of stressors in riverine littoral habitats and inhabited communities. Full article
(This article belongs to the Special Issue Riverine Wetlands: Functioning and Threats in a Changing World)
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