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Response of submerg...
Response of submerged macrophyte communities to external and internal restoration measures in north temperate shallow lakes
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- Hilt, Sabine (författare)
- Leibniz Institute of Freshwater Ecology and Inland Fisheries
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- Alirangues Nuñez, Marta M. (författare)
- Leibniz Institute of Freshwater Ecology and Inland Fisheries
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- Bakker, Elisabeth S. (författare)
- Netherlands Institute of Ecology (NIOO-KNAW)
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- Blindow, Irmgard (författare)
- University of Greifswald
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- Davidson, Thomas A. (författare)
- Aarhus University
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- Gillefalk, Mikael (författare)
- Leibniz Institute of Freshwater Ecology and Inland Fisheries
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- Hansson, Lars Anders (författare)
- Lund University,Lunds universitet,Enhet akvatisk ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Division aquatic ecology,Department of Biology,Faculty of Science
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- Janse, Jan H. (författare)
- Netherlands Environmental Assessment Agency; Hague,Netherlands Institute of Ecology (NIOO-KNAW)
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- Janssen, Annette B.G. (författare)
- Netherlands Institute of Ecology (NIOO-KNAW),Wageningen University
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- Jeppesen, Erik (författare)
- University of the Chinese Academy of Sciences,Aarhus University
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- Kabus, Timm (författare)
- Institut für angewandte Gewässerökologie GmbH
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- Kelly, Andrea (författare)
- Broads Authority
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- Köhler, Jan (författare)
- Leibniz Institute of Freshwater Ecology and Inland Fisheries
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- Lauridsen, Torben L. (författare)
- Aarhus University,University of the Chinese Academy of Sciences
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- Mooij, Wolf M. (författare)
- Wageningen University,Netherlands Institute of Ecology (NIOO-KNAW)
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- Noordhuis, Ruurd (författare)
- Deltares - Netherlands Centre for Coastal Research
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- Phillips, Geoff (författare)
- University of Stirling
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- Rücker, Jacqueline (författare)
- Brandenburg University of Technology Cottbus- Senftenberg
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- Schuster, Hans Heinrich (författare)
- Niedersächsischer Landesbetrieb für Wasserwirtschaft, Küsten- und Naturschutz
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- Søndergaard, Martin (författare)
- Aarhus University,University of the Chinese Academy of Sciences
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- Teurlincx, Sven (författare)
- Netherlands Institute of Ecology (NIOO-KNAW)
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- van de Weyer, Klaus (författare)
- Lanaplan
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- van Donk, Ellen (författare)
- Netherlands Institute of Ecology (NIOO-KNAW)
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- Waterstraat, Arno (författare)
- Gesellschaft für Naturschutz und Landschaftsökologie
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- Willby, Nigel (författare)
- University of Stirling
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- Sayer, Carl D. (författare)
- University College London
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(creator_code:org_t)
- 2018-02-19
- 2018
- Engelska.
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Ingår i: Frontiers in Plant Science. - : Frontiers Media SA. - 1664-462X. ; 9
- Relaterad länk:
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http://dx.doi.org/10... (free)
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https://www.frontier...
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https://lup.lub.lu.s...
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https://doi.org/10.3...
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Abstract
Ämnesord
Stäng
- Submerged macrophytes play a key role in north temperate shallow lakes by stabilizing clear-water conditions. Eutrophication has resulted in macrophyte loss and shifts to turbid conditions in many lakes. Considerable efforts have been devoted to shallow lake restoration in many countries, but long-term success depends on a stable recovery of submerged macrophytes. However, recovery patterns vary widely and remain to be fully understood. We hypothesize that reduced external nutrient loading leads to an intermediate recovery state with clear spring and turbid summer conditions similar to the pattern described for eutrophication. In contrast, lake internal restoration measures can result in transient clear-water conditions both in spring and summer and reversals to turbid conditions. Furthermore, we hypothesize that these contrasting restoration measures result in different macrophyte species composition, with added implications for seasonal dynamics due to differences in plant traits. To test these hypotheses, we analyzed data on water quality and submerged macrophytes from 49 north temperate shallow lakes that were in a turbid state and subjected to restoration measures. To study the dynamics of macrophytes during nutrient load reduction, we adapted the ecosystem model PCLake. Our survey and model simulations revealed the existence of an intermediate recovery state upon reduced external nutrient loading, characterized by spring clear-water phases and turbid summers, whereas internal lake restoration measures often resulted in clear-water conditions in spring and summer with returns to turbid conditions after some years. External and internal lake restoration measures resulted in different macrophyte communities. The intermediate recovery state following reduced nutrient loading is characterized by a few macrophyte species (mainly pondweeds) that can resist wave action allowing survival in shallowareas, germinate early in spring, have energy-rich vegetative propagules facilitating rapid initial growth and that can complete their life cycle by early summer. Later in the growing season these plants are, according to our simulations, outcompeted by periphyton, leading to late-summer phytoplankton blooms. Internal lake restoration measures often coincide with a rapid but transient colonization by hornworts, waterweeds or charophytes. Stable clear-water conditions and a diverse macrophyte flora only occurred decades after external nutrient load reduction or when measures were combined.
Ämnesord
- NATURVETENSKAP -- Biologi -- Botanik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Botany (hsv//eng)
Nyckelord
- Aquaticplants
- Biomanipulation
- Eutrophication
- Lakerestoration
- Nutrient loadreduction
- PCLake
- Plant traits
- Regime shift
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- art (ämneskategori)
- ref (ämneskategori)
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Hilt, Sabine
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Alirangues Nuñez ...
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Bakker, Elisabet ...
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Blindow, Irmgard
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Davidson, Thomas ...
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Gillefalk, Mikae ...
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visa fler...
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Hansson, Lars An ...
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Janse, Jan H.
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Janssen, Annette ...
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Jeppesen, Erik
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Kabus, Timm
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Kelly, Andrea
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Köhler, Jan
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Lauridsen, Torbe ...
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Mooij, Wolf M.
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Noordhuis, Ruurd
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Phillips, Geoff
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Rücker, Jacqueli ...
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Schuster, Hans H ...
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Søndergaard, Mar ...
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Teurlincx, Sven
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van de Weyer, Kl ...
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van Donk, Ellen
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Waterstraat, Arn ...
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Willby, Nigel
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Sayer, Carl D.
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