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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Format: | Article in Journal/Newspaper |
Language: | English |
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Online Access: | https://eprints.soton.ac.uk/422214/ https://eprints.soton.ac.uk/422214/1/McGowan_et_al_2018_Limnology_and_Oceanography_Letters_2018.pdf |
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ftsouthampton:oai:eprints.soton.ac.uk:422214 2023-07-30T03:59:57+02:00 Vegetation transitions drive the autotrophy-heterotrophy balance in Arctic lakes McGowan, Suzanne Anderson, John Edwards, Mary Hopla, Emma-Jayne Jones, Viv Langdon, Peter Law, Antonia Soloveiva, Nadia Turner, Simon Van Hardenbroek van ammerstol, Maarten R Whiteford, Erica Wiik, Emma 2018-06 text https://eprints.soton.ac.uk/422214/ https://eprints.soton.ac.uk/422214/1/McGowan_et_al_2018_Limnology_and_Oceanography_Letters_2018.pdf en English eng https://eprints.soton.ac.uk/422214/1/McGowan_et_al_2018_Limnology_and_Oceanography_Letters_2018.pdf McGowan, Suzanne, Anderson, John, Edwards, Mary, Hopla, Emma-Jayne, Jones, Viv, Langdon, Peter, Law, Antonia, Soloveiva, Nadia, Turner, Simon, Van Hardenbroek van ammerstol, Maarten R, Whiteford, Erica and Wiik, Emma (2018) Vegetation transitions drive the autotrophy-heterotrophy balance in Arctic lakes. Limnology and Oceanography Letters, 3 (3), 246-255. (doi:10.1002/lol2.10086 <http://dx.doi.org/10.1002/lol2.10086>). cc_by_4 Article PeerReviewed 2018 ftsouthampton https://doi.org/10.1002/lol2.10086 2023-07-09T22:23:38Z “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; < 2 mgL−1) and light extinction (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 Arctic Greening Arctic Greenland Alaska University of Southampton: e-Prints Soton Arctic Greenland Norway Limnology and Oceanography Letters 3 3 246 255 |
institution |
Open Polar |
collection |
University of Southampton: e-Prints Soton |
op_collection_id |
ftsouthampton |
language |
English |
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; < 2 mgL−1) and light extinction (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, John Edwards, Mary Hopla, Emma-Jayne Jones, Viv Langdon, Peter Law, Antonia Soloveiva, Nadia Turner, Simon Van Hardenbroek van ammerstol, Maarten R Whiteford, Erica Wiik, Emma |
spellingShingle |
McGowan, Suzanne Anderson, John Edwards, Mary Hopla, Emma-Jayne Jones, Viv Langdon, Peter Law, Antonia Soloveiva, Nadia Turner, Simon Van Hardenbroek van ammerstol, Maarten R Whiteford, Erica Wiik, Emma Vegetation transitions drive the autotrophy-heterotrophy balance in Arctic lakes |
author_facet |
McGowan, Suzanne Anderson, John Edwards, Mary Hopla, Emma-Jayne Jones, Viv Langdon, Peter Law, Antonia Soloveiva, Nadia Turner, Simon Van Hardenbroek van ammerstol, Maarten R Whiteford, Erica 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 |
publishDate |
2018 |
url |
https://eprints.soton.ac.uk/422214/ https://eprints.soton.ac.uk/422214/1/McGowan_et_al_2018_Limnology_and_Oceanography_Letters_2018.pdf |
geographic |
Arctic Greenland Norway |
geographic_facet |
Arctic Greenland Norway |
genre |
Arctic Arctic Greening Arctic Greenland Alaska |
genre_facet |
Arctic Arctic Greening Arctic Greenland Alaska |
op_relation |
https://eprints.soton.ac.uk/422214/1/McGowan_et_al_2018_Limnology_and_Oceanography_Letters_2018.pdf McGowan, Suzanne, Anderson, John, Edwards, Mary, Hopla, Emma-Jayne, Jones, Viv, Langdon, Peter, Law, Antonia, Soloveiva, Nadia, Turner, Simon, Van Hardenbroek van ammerstol, Maarten R, Whiteford, Erica and Wiik, Emma (2018) Vegetation transitions drive the autotrophy-heterotrophy balance in Arctic lakes. Limnology and Oceanography Letters, 3 (3), 246-255. (doi:10.1002/lol2.10086 <http://dx.doi.org/10.1002/lol2.10086>). |
op_rights |
cc_by_4 |
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_ |
1772810641946443776 |