Aquatic plant wax hydrogen and carbon isotopes in Greenland lakes record shifts in methane cycling during past Holocene warming
Predicting changes to methane cycling in Arctic lakes is of global concern in a warming world but records constraining lake methane dynamics with past warming are rare. Here, we demonstrate that the hydrogen isotopic composition (δ(2)H) of mid-chain waxes derived from aquatic moss clearly decouples...
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ftpubmed:oai:pubmedcentral.nih.gov:10541501 2023-11-05T03:38:54+01:00 Aquatic plant wax hydrogen and carbon isotopes in Greenland lakes record shifts in methane cycling during past Holocene warming McFarlin, Jamie M. Axford, Yarrow Kusch, Stephanie Masterson, Andrew L. Lasher, G. Everett Osburn, Magdalena R. 2023-09-29 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10541501/ http://www.ncbi.nlm.nih.gov/pubmed/37774023 https://doi.org/10.1126/sciadv.adh9704 en eng American Association for the Advancement of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10541501/ http://www.ncbi.nlm.nih.gov/pubmed/37774023 http://dx.doi.org/10.1126/sciadv.adh9704 Copyright © 2023 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY). https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Sci Adv Earth Environmental Ecological and Space Sciences Text 2023 ftpubmed https://doi.org/10.1126/sciadv.adh9704 2023-10-08T00:53:29Z Predicting changes to methane cycling in Arctic lakes is of global concern in a warming world but records constraining lake methane dynamics with past warming are rare. Here, we demonstrate that the hydrogen isotopic composition (δ(2)H) of mid-chain waxes derived from aquatic moss clearly decouples from precipitation during past Holocene warmth and instead records incorporation of methane in plant biomass. Trends in δ(2)H(moss) and δ(13)C(moss) values point to widespread Middle Holocene (11,700 to 4200 years ago) shifts in lake methane cycling across Greenland during millennia of elevated summer temperatures, heightened productivity, and lowered hypolimnetic oxygen. These data reveal ongoing warming may lead to increases in methane-derived C in many Arctic lakes, including lakes where methane is not a major component of the C cycle today. This work highlights a previously unrecognized mechanism influencing δ(2)H values of mid-chain wax and draws attention to the unquantified role of common aquatic mosses as a potentially important sink of lake methane across the Arctic. Text Arctic Greenland PubMed Central (PMC) Science Advances 9 39 |
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Earth Environmental Ecological and Space Sciences |
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Earth Environmental Ecological and Space Sciences McFarlin, Jamie M. Axford, Yarrow Kusch, Stephanie Masterson, Andrew L. Lasher, G. Everett Osburn, Magdalena R. Aquatic plant wax hydrogen and carbon isotopes in Greenland lakes record shifts in methane cycling during past Holocene warming |
topic_facet |
Earth Environmental Ecological and Space Sciences |
description |
Predicting changes to methane cycling in Arctic lakes is of global concern in a warming world but records constraining lake methane dynamics with past warming are rare. Here, we demonstrate that the hydrogen isotopic composition (δ(2)H) of mid-chain waxes derived from aquatic moss clearly decouples from precipitation during past Holocene warmth and instead records incorporation of methane in plant biomass. Trends in δ(2)H(moss) and δ(13)C(moss) values point to widespread Middle Holocene (11,700 to 4200 years ago) shifts in lake methane cycling across Greenland during millennia of elevated summer temperatures, heightened productivity, and lowered hypolimnetic oxygen. These data reveal ongoing warming may lead to increases in methane-derived C in many Arctic lakes, including lakes where methane is not a major component of the C cycle today. This work highlights a previously unrecognized mechanism influencing δ(2)H values of mid-chain wax and draws attention to the unquantified role of common aquatic mosses as a potentially important sink of lake methane across the Arctic. |
format |
Text |
author |
McFarlin, Jamie M. Axford, Yarrow Kusch, Stephanie Masterson, Andrew L. Lasher, G. Everett Osburn, Magdalena R. |
author_facet |
McFarlin, Jamie M. Axford, Yarrow Kusch, Stephanie Masterson, Andrew L. Lasher, G. Everett Osburn, Magdalena R. |
author_sort |
McFarlin, Jamie M. |
title |
Aquatic plant wax hydrogen and carbon isotopes in Greenland lakes record shifts in methane cycling during past Holocene warming |
title_short |
Aquatic plant wax hydrogen and carbon isotopes in Greenland lakes record shifts in methane cycling during past Holocene warming |
title_full |
Aquatic plant wax hydrogen and carbon isotopes in Greenland lakes record shifts in methane cycling during past Holocene warming |
title_fullStr |
Aquatic plant wax hydrogen and carbon isotopes in Greenland lakes record shifts in methane cycling during past Holocene warming |
title_full_unstemmed |
Aquatic plant wax hydrogen and carbon isotopes in Greenland lakes record shifts in methane cycling during past Holocene warming |
title_sort |
aquatic plant wax hydrogen and carbon isotopes in greenland lakes record shifts in methane cycling during past holocene warming |
publisher |
American Association for the Advancement of Science |
publishDate |
2023 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10541501/ http://www.ncbi.nlm.nih.gov/pubmed/37774023 https://doi.org/10.1126/sciadv.adh9704 |
genre |
Arctic Greenland |
genre_facet |
Arctic Greenland |
op_source |
Sci Adv |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10541501/ http://www.ncbi.nlm.nih.gov/pubmed/37774023 http://dx.doi.org/10.1126/sciadv.adh9704 |
op_rights |
Copyright © 2023 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY). https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
op_doi |
https://doi.org/10.1126/sciadv.adh9704 |
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Science Advances |
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9 |
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39 |
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1781694671485927424 |