Reviews and syntheses: Effects of permafrost thaw on Arctic aquatic ecosystems
The Arctic is a water-rich region, with freshwater systems covering about 16 % of the northern permafrost landscape. Permafrost thaw creates new freshwater ecosystems, while at the same time modifying the existing lakes, streams, and rivers that are impacted by thaw. Here, we describe the current st...
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Copernicus Publications on behalf of the European Geosciences Union
2015
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ftunivstirling:oai:dspace.stir.ac.uk:1893/22592 2023-05-15T14:27:33+02:00 Reviews and syntheses: Effects of permafrost thaw on Arctic aquatic ecosystems Vonk, Jorien E Tank, Suzanne E Bowden, William B Laurion, Isabelle Vincent, Warwick F Alekseychik, Pavel Amyot, Marc Billett, Michael Canario, Joao Cory, Rose M Deshpande, Bethany N Helbig, Manuel Jammet, Mathilde Karlsson, Jan Larouche, Julia Utrecht University University of Alberta University of Vermont Universite Laval, Canada University of Helsinki University of Montreal Biological and Environmental Sciences University of Lisbon University of Michigan University of Copenhagen Umea University orcid:0000-0003-3737-6063 2015-12-08 application/pdf http://hdl.handle.net/1893/22592 https://doi.org/10.5194/bg-12-7129-2015 http://dspace.stir.ac.uk/bitstream/1893/22592/1/Vonk%20et%20al_Biogeosciences_2015.pdf en eng Copernicus Publications on behalf of the European Geosciences Union Vonk JE, Tank SE, Bowden WB, Laurion I, Vincent WF, Alekseychik P, Amyot M, Billett M, Canario J, Cory RM, Deshpande BN, Helbig M, Jammet M, Karlsson J & Larouche J (2015) Reviews and syntheses: Effects of permafrost thaw on Arctic aquatic ecosystems. Biogeosciences, 12 (23), pp. 7129-7167. https://doi.org/10.5194/bg-12-7129-2015 http://hdl.handle.net/1893/22592 doi:10.5194/bg-12-7129-2015 WOS:000372085100002 2-s2.0-84949604722 582617 http://dspace.stir.ac.uk/bitstream/1893/22592/1/Vonk%20et%20al_Biogeosciences_2015.pdf © Author(s) 2015. This work is distributed under the Creative Commons Attribution 3.0 License. http://creativecommons.org/licenses/by/4.0/ CC-BY Journal Article VoR - Version of Record 2015 ftunivstirling https://doi.org/10.5194/bg-12-7129-2015 2022-06-13T18:43:46Z The Arctic is a water-rich region, with freshwater systems covering about 16 % of the northern permafrost landscape. Permafrost thaw creates new freshwater ecosystems, while at the same time modifying the existing lakes, streams, and rivers that are impacted by thaw. Here, we describe the current state of knowledge regarding how permafrost thaw affects lentic (still) and lotic (moving) systems, exploring the effects of both thermokarst (thawing and collapse of ice-rich permafrost) and deepening of the active layer (the surface soil layer that thaws and refreezes each year). Within thermokarst, we further differentiate between the effects of thermokarst in lowland areas vs. that on hillslopes. For almost all of the processes that we explore, the effects of thaw vary regionally, and between lake and stream systems. Much of this regional variation is caused by differences in ground ice content, topography, soil type, and permafrost coverage. Together, these modifying factors determine (i) the degree to which permafrost thaw manifests as thermokarst, (ii) whether thermokarst leads to slumping or the formation of thermokarst lakes, and (iii) the manner in which constituent delivery to freshwater systems is altered by thaw. Differences in thaw-enabled constituent delivery can be considerable, with these modifying factors determining, for example, the balance between delivery of particulate vs. dissolved constituents, and inorganic vs. organic materials. Changes in the composition of thaw-impacted waters, coupled with changes in lake morphology, can strongly affect the physical and optical properties of thermokarst lakes. The ecology of thaw-impacted lakes and streams is also likely to change; these systems have unique microbiological communities, and show differences in respiration, primary production, and food web structure that are largely driven by differences in sediment, dissolved organic matter, and nutrient delivery. The degree to which thaw enables the delivery of dissolved vs. particulate organic matter, ... Article in Journal/Newspaper Arctic Arctic Ice permafrost Thermokarst University of Stirling: Stirling Digital Research Repository Arctic Biogeosciences 12 23 7129 7167 |
institution |
Open Polar |
collection |
University of Stirling: Stirling Digital Research Repository |
op_collection_id |
ftunivstirling |
language |
English |
description |
The Arctic is a water-rich region, with freshwater systems covering about 16 % of the northern permafrost landscape. Permafrost thaw creates new freshwater ecosystems, while at the same time modifying the existing lakes, streams, and rivers that are impacted by thaw. Here, we describe the current state of knowledge regarding how permafrost thaw affects lentic (still) and lotic (moving) systems, exploring the effects of both thermokarst (thawing and collapse of ice-rich permafrost) and deepening of the active layer (the surface soil layer that thaws and refreezes each year). Within thermokarst, we further differentiate between the effects of thermokarst in lowland areas vs. that on hillslopes. For almost all of the processes that we explore, the effects of thaw vary regionally, and between lake and stream systems. Much of this regional variation is caused by differences in ground ice content, topography, soil type, and permafrost coverage. Together, these modifying factors determine (i) the degree to which permafrost thaw manifests as thermokarst, (ii) whether thermokarst leads to slumping or the formation of thermokarst lakes, and (iii) the manner in which constituent delivery to freshwater systems is altered by thaw. Differences in thaw-enabled constituent delivery can be considerable, with these modifying factors determining, for example, the balance between delivery of particulate vs. dissolved constituents, and inorganic vs. organic materials. Changes in the composition of thaw-impacted waters, coupled with changes in lake morphology, can strongly affect the physical and optical properties of thermokarst lakes. The ecology of thaw-impacted lakes and streams is also likely to change; these systems have unique microbiological communities, and show differences in respiration, primary production, and food web structure that are largely driven by differences in sediment, dissolved organic matter, and nutrient delivery. The degree to which thaw enables the delivery of dissolved vs. particulate organic matter, ... |
author2 |
Utrecht University University of Alberta University of Vermont Universite Laval, Canada University of Helsinki University of Montreal Biological and Environmental Sciences University of Lisbon University of Michigan University of Copenhagen Umea University orcid:0000-0003-3737-6063 |
format |
Article in Journal/Newspaper |
author |
Vonk, Jorien E Tank, Suzanne E Bowden, William B Laurion, Isabelle Vincent, Warwick F Alekseychik, Pavel Amyot, Marc Billett, Michael Canario, Joao Cory, Rose M Deshpande, Bethany N Helbig, Manuel Jammet, Mathilde Karlsson, Jan Larouche, Julia |
spellingShingle |
Vonk, Jorien E Tank, Suzanne E Bowden, William B Laurion, Isabelle Vincent, Warwick F Alekseychik, Pavel Amyot, Marc Billett, Michael Canario, Joao Cory, Rose M Deshpande, Bethany N Helbig, Manuel Jammet, Mathilde Karlsson, Jan Larouche, Julia Reviews and syntheses: Effects of permafrost thaw on Arctic aquatic ecosystems |
author_facet |
Vonk, Jorien E Tank, Suzanne E Bowden, William B Laurion, Isabelle Vincent, Warwick F Alekseychik, Pavel Amyot, Marc Billett, Michael Canario, Joao Cory, Rose M Deshpande, Bethany N Helbig, Manuel Jammet, Mathilde Karlsson, Jan Larouche, Julia |
author_sort |
Vonk, Jorien E |
title |
Reviews and syntheses: Effects of permafrost thaw on Arctic aquatic ecosystems |
title_short |
Reviews and syntheses: Effects of permafrost thaw on Arctic aquatic ecosystems |
title_full |
Reviews and syntheses: Effects of permafrost thaw on Arctic aquatic ecosystems |
title_fullStr |
Reviews and syntheses: Effects of permafrost thaw on Arctic aquatic ecosystems |
title_full_unstemmed |
Reviews and syntheses: Effects of permafrost thaw on Arctic aquatic ecosystems |
title_sort |
reviews and syntheses: effects of permafrost thaw on arctic aquatic ecosystems |
publisher |
Copernicus Publications on behalf of the European Geosciences Union |
publishDate |
2015 |
url |
http://hdl.handle.net/1893/22592 https://doi.org/10.5194/bg-12-7129-2015 http://dspace.stir.ac.uk/bitstream/1893/22592/1/Vonk%20et%20al_Biogeosciences_2015.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Ice permafrost Thermokarst |
genre_facet |
Arctic Arctic Ice permafrost Thermokarst |
op_relation |
Vonk JE, Tank SE, Bowden WB, Laurion I, Vincent WF, Alekseychik P, Amyot M, Billett M, Canario J, Cory RM, Deshpande BN, Helbig M, Jammet M, Karlsson J & Larouche J (2015) Reviews and syntheses: Effects of permafrost thaw on Arctic aquatic ecosystems. Biogeosciences, 12 (23), pp. 7129-7167. https://doi.org/10.5194/bg-12-7129-2015 http://hdl.handle.net/1893/22592 doi:10.5194/bg-12-7129-2015 WOS:000372085100002 2-s2.0-84949604722 582617 http://dspace.stir.ac.uk/bitstream/1893/22592/1/Vonk%20et%20al_Biogeosciences_2015.pdf |
op_rights |
© Author(s) 2015. This work is distributed under the Creative Commons Attribution 3.0 License. http://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/bg-12-7129-2015 |
container_title |
Biogeosciences |
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12 |
container_issue |
23 |
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7129 |
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7167 |
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1766301346912272384 |