Vegetation transitions drive the autotrophy-heterotrophy balance in Arctic lakes
“Arctic greening” will alter vegetation quantity and quality in northern watersheds, with possible consequences for lake metabolic balance. We used paleolimnology from six Arctic lakes in Greenland, Norway, and Alaska to develop a conceptual model describing how climate-driven shifts in terrestrial...
Published in: | Limnology and Oceanography Letters |
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2018
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Online Access: | https://doi.org/10.1002/lol2.10086 https://nottingham-repository.worktribe.com/file/930942/1/McGowan%20et%20al%202018%20LOL.pdf https://nottingham-repository.worktribe.com/output/930942 |
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ftunnottinghamrr:oai:nottingham-repository.worktribe.com:930942 2023-05-15T14:31:25+02:00 Vegetation transitions drive the autotrophy-heterotrophy balance in Arctic lakes McGowan, Suzanne Anderson, N. John Edwards, Mary E. Hopla, Emma Jones, Viv Langdon, Pete G. Law, Antonia Soloveiva, Nadia Turner, Simon van Hardenbroek, Maarten Whiteford, Erika J. Wiik, Emma 2018-05-04 https://doi.org/10.1002/lol2.10086 https://nottingham-repository.worktribe.com/file/930942/1/McGowan%20et%20al%202018%20LOL.pdf https://nottingham-repository.worktribe.com/output/930942 unknown Wiley https://nottingham-repository.worktribe.com/output/930942 Limnology and Oceanography Letters doi:https://doi.org/10.1002/lol2.10086 https://nottingham-repository.worktribe.com/file/930942/1/McGowan%20et%20al%202018%20LOL.pdf doi:10.1002/lol2.10086 openAccess Journal Article 2018 ftunnottinghamrr https://doi.org/10.1002/lol2.10086 2022-10-13T22:10:40Z “Arctic greening” will alter vegetation quantity and quality in northern watersheds, with possible consequences for lake metabolic balance. We used paleolimnology from six Arctic lakes in Greenland, Norway, and Alaska to develop a conceptual model describing how climate-driven shifts in terrestrial vegetation (spanning herb to boreal forest) influence lake autotrophic biomass (as chlorophyll and carotenoid pigments). Major autotrophic transitions occurred, including (1) optimal production of siliceous algae and cyanobacteria/chlorophytes at intermediate vegetation cover (dwarf shrub and Betula; dissolved organic carbon (DOC) range of 2–4 mg L-1), below and above which UVR exposure (DOC;4 mgL-1), respectively limit algal biomass, (2) an increase in potentially mixotrophic cryptophytes with higher forest cover and allochthonous carbon supply. Vegetation cover appears to influence lake autotrophs by changing influx of (colored) dissolved organic matter which has multiple interacting roles—as a photoprotectant—in light attenuation and in macronutrient (carbon, nitrogen) supply. Article in Journal/Newspaper Arctic Greening Arctic Greenland Alaska University of Nottingham: Repository@Nottingham Arctic Greenland Norway Limnology and Oceanography Letters 3 3 246 255 |
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Open Polar |
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University of Nottingham: Repository@Nottingham |
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ftunnottinghamrr |
language |
unknown |
description |
“Arctic greening” will alter vegetation quantity and quality in northern watersheds, with possible consequences for lake metabolic balance. We used paleolimnology from six Arctic lakes in Greenland, Norway, and Alaska to develop a conceptual model describing how climate-driven shifts in terrestrial vegetation (spanning herb to boreal forest) influence lake autotrophic biomass (as chlorophyll and carotenoid pigments). Major autotrophic transitions occurred, including (1) optimal production of siliceous algae and cyanobacteria/chlorophytes at intermediate vegetation cover (dwarf shrub and Betula; dissolved organic carbon (DOC) range of 2–4 mg L-1), below and above which UVR exposure (DOC;4 mgL-1), respectively limit algal biomass, (2) an increase in potentially mixotrophic cryptophytes with higher forest cover and allochthonous carbon supply. Vegetation cover appears to influence lake autotrophs by changing influx of (colored) dissolved organic matter which has multiple interacting roles—as a photoprotectant—in light attenuation and in macronutrient (carbon, nitrogen) supply. |
format |
Article in Journal/Newspaper |
author |
McGowan, Suzanne Anderson, N. John Edwards, Mary E. Hopla, Emma Jones, Viv Langdon, Pete G. Law, Antonia Soloveiva, Nadia Turner, Simon van Hardenbroek, Maarten Whiteford, Erika J. Wiik, Emma |
spellingShingle |
McGowan, Suzanne Anderson, N. John Edwards, Mary E. Hopla, Emma Jones, Viv Langdon, Pete G. Law, Antonia Soloveiva, Nadia Turner, Simon van Hardenbroek, Maarten Whiteford, Erika J. Wiik, Emma Vegetation transitions drive the autotrophy-heterotrophy balance in Arctic lakes |
author_facet |
McGowan, Suzanne Anderson, N. John Edwards, Mary E. Hopla, Emma Jones, Viv Langdon, Pete G. Law, Antonia Soloveiva, Nadia Turner, Simon van Hardenbroek, Maarten Whiteford, Erika J. Wiik, Emma |
author_sort |
McGowan, Suzanne |
title |
Vegetation transitions drive the autotrophy-heterotrophy balance in Arctic lakes |
title_short |
Vegetation transitions drive the autotrophy-heterotrophy balance in Arctic lakes |
title_full |
Vegetation transitions drive the autotrophy-heterotrophy balance in Arctic lakes |
title_fullStr |
Vegetation transitions drive the autotrophy-heterotrophy balance in Arctic lakes |
title_full_unstemmed |
Vegetation transitions drive the autotrophy-heterotrophy balance in Arctic lakes |
title_sort |
vegetation transitions drive the autotrophy-heterotrophy balance in arctic lakes |
publisher |
Wiley |
publishDate |
2018 |
url |
https://doi.org/10.1002/lol2.10086 https://nottingham-repository.worktribe.com/file/930942/1/McGowan%20et%20al%202018%20LOL.pdf https://nottingham-repository.worktribe.com/output/930942 |
geographic |
Arctic Greenland Norway |
geographic_facet |
Arctic Greenland Norway |
genre |
Arctic Greening Arctic Greenland Alaska |
genre_facet |
Arctic Greening Arctic Greenland Alaska |
op_relation |
https://nottingham-repository.worktribe.com/output/930942 Limnology and Oceanography Letters doi:https://doi.org/10.1002/lol2.10086 https://nottingham-repository.worktribe.com/file/930942/1/McGowan%20et%20al%202018%20LOL.pdf doi:10.1002/lol2.10086 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1002/lol2.10086 |
container_title |
Limnology and Oceanography Letters |
container_volume |
3 |
container_issue |
3 |
container_start_page |
246 |
op_container_end_page |
255 |
_version_ |
1766305055549423616 |