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: | http://eprints.nottingham.ac.uk/51915/ https://eprints.nottingham.ac.uk/51915/1/McGowan%20et%20al%202018%20LOL.pdf https://aslopubs.onlinelibrary.wiley.com/doi/abs/10.1002/lol2.10086 https://doi.org/10.1002/lol2.10086 |
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ftunottingham:oai:eprints.nottingham.ac.uk:51915 2023-09-05T13:15:54+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 application/pdf http://eprints.nottingham.ac.uk/51915/ https://eprints.nottingham.ac.uk/51915/1/McGowan%20et%20al%202018%20LOL.pdf https://aslopubs.onlinelibrary.wiley.com/doi/abs/10.1002/lol2.10086 https://doi.org/10.1002/lol2.10086 en eng Wiley Open Access https://eprints.nottingham.ac.uk/51915/1/McGowan%20et%20al%202018%20LOL.pdf McGowan, Suzanne and Anderson, N. John and Edwards, Mary E. and Hopla, Emma and Jones, Viv and Langdon, Pete G. and Law, Antonia and Soloveiva, Nadia and Turner, Simon and van Hardenbroek, Maarten and Whiteford, Erika J. and Wiik, Emma (2018) Vegetation transitions drive the autotrophy-heterotrophy balance in Arctic lakes. Limnology and Oceanography Letters . ISSN 2378-2242 doi:10.1002/lol2.10086 cc_by Article PeerReviewed 2018 ftunottingham https://doi.org/10.1002/lol2.10086 2023-08-14T17:44:23Z “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 The University of Nottingham: Nottingham ePrints Arctic Greenland Norway Limnology and Oceanography Letters 3 3 246 255 |
institution |
Open Polar |
collection |
The University of Nottingham: Nottingham ePrints |
op_collection_id |
ftunottingham |
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, 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 Open Access |
publishDate |
2018 |
url |
http://eprints.nottingham.ac.uk/51915/ https://eprints.nottingham.ac.uk/51915/1/McGowan%20et%20al%202018%20LOL.pdf https://aslopubs.onlinelibrary.wiley.com/doi/abs/10.1002/lol2.10086 https://doi.org/10.1002/lol2.10086 |
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.nottingham.ac.uk/51915/1/McGowan%20et%20al%202018%20LOL.pdf McGowan, Suzanne and Anderson, N. John and Edwards, Mary E. and Hopla, Emma and Jones, Viv and Langdon, Pete G. and Law, Antonia and Soloveiva, Nadia and Turner, Simon and van Hardenbroek, Maarten and Whiteford, Erika J. and Wiik, Emma (2018) Vegetation transitions drive the autotrophy-heterotrophy balance in Arctic lakes. Limnology and Oceanography Letters . ISSN 2378-2242 doi:10.1002/lol2.10086 |
op_rights |
cc_by |
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_ |
1776197702815580160 |