Vegetation transitions drive the autotrophy–heterotrophy balance in Arctic lakes
Abstract “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 ter...
Published in: | Limnology and Oceanography Letters |
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Online Access: | https://doi.org/10.1002/lol2.10086 https://doaj.org/article/7500b8412323458b86887d47d2cdc98d |
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ftdoajarticles:oai:doaj.org/article:7500b8412323458b86887d47d2cdc98d 2023-05-15T14:31:25+02:00 Vegetation transitions drive the autotrophy–heterotrophy balance in Arctic lakes Suzanne McGowan N. John Anderson Mary E. Edwards Emma Hopla Viv Jones Pete G. Langdon Antonia Law Nadia Solovieva Simon Turner Maarten van Hardenbroek Erika J Whiteford Emma Wiik 2018-06-01T00:00:00Z https://doi.org/10.1002/lol2.10086 https://doaj.org/article/7500b8412323458b86887d47d2cdc98d EN eng Wiley https://doi.org/10.1002/lol2.10086 https://doaj.org/toc/2378-2242 2378-2242 doi:10.1002/lol2.10086 https://doaj.org/article/7500b8412323458b86887d47d2cdc98d Limnology and Oceanography Letters, Vol 3, Iss 3, Pp 246-255 (2018) Oceanography GC1-1581 article 2018 ftdoajarticles https://doi.org/10.1002/lol2.10086 2022-12-31T08:14:08Z Abstract “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 Greening Arctic Greenland Alaska Directory of Open Access Journals: DOAJ Articles Arctic Greenland Norway Limnology and Oceanography Letters 3 3 246 255 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Oceanography GC1-1581 |
spellingShingle |
Oceanography GC1-1581 Suzanne McGowan N. John Anderson Mary E. Edwards Emma Hopla Viv Jones Pete G. Langdon Antonia Law Nadia Solovieva Simon Turner Maarten van Hardenbroek Erika J Whiteford Emma Wiik Vegetation transitions drive the autotrophy–heterotrophy balance in Arctic lakes |
topic_facet |
Oceanography GC1-1581 |
description |
Abstract “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 |
Suzanne McGowan N. John Anderson Mary E. Edwards Emma Hopla Viv Jones Pete G. Langdon Antonia Law Nadia Solovieva Simon Turner Maarten van Hardenbroek Erika J Whiteford Emma Wiik |
author_facet |
Suzanne McGowan N. John Anderson Mary E. Edwards Emma Hopla Viv Jones Pete G. Langdon Antonia Law Nadia Solovieva Simon Turner Maarten van Hardenbroek Erika J Whiteford Emma Wiik |
author_sort |
Suzanne McGowan |
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://doaj.org/article/7500b8412323458b86887d47d2cdc98d |
geographic |
Arctic Greenland Norway |
geographic_facet |
Arctic Greenland Norway |
genre |
Arctic Greening Arctic Greenland Alaska |
genre_facet |
Arctic Greening Arctic Greenland Alaska |
op_source |
Limnology and Oceanography Letters, Vol 3, Iss 3, Pp 246-255 (2018) |
op_relation |
https://doi.org/10.1002/lol2.10086 https://doaj.org/toc/2378-2242 2378-2242 doi:10.1002/lol2.10086 https://doaj.org/article/7500b8412323458b86887d47d2cdc98d |
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_ |
1766305056072663040 |