Small Thaw Ponds: An Unaccounted Source of Methane in the Canadian High Arctic
Publication Date
November 13, 2013
Journal
PLOS ONE
Authors
Karita Negandhi, Isabelle Laurion, Michael J. Whiticar, Pierre E. Galand, et al
Volume
8
Issue
11
Pages
e78204
DOI
https://dx.plos.org/10.1371/journal.pone.0078204
Publisher URL
http://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0078204
PubMed
http://www.ncbi.nlm.nih.gov/pubmed/24236014
PubMed Central
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3827239
Europe PMC
http://europepmc.org/abstract/MED/24236014
Web of Science
000327254700011
Scopus
84893554923
Mendeley
http://www.mendeley.com/research/small-thaw-ponds-unaccounted-source-methane-canadian-high-arctic
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Mendeley | Further Information

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Scopus | Further Information

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Figshare

  • {"files"=>["https://ndownloader.figshare.com/files/1280065"], "description"=>"<p>Polygonal ponds (P); runnel ponds (R); dissolved organic carbon (DOC); organic carbon (OC); Greenhouse gases (GHG, including CO<sub>2</sub> and CH<sub>4</sub>); ebullition is GHG released as bubbles; production pathway indicates CH<sub>4</sub> produced by acetoclastic methanogenesis (AM) or hydrogenotrophic methanogenesis (HM); temperature (temp). Note that most samples were collected in 2009, with diurnal, ebullition and sediment OC collected in 2011, which was the only occasion when appropriate sampling gear was available.</p>", "links"=>[], "tags"=>["thaw", "ponds", "samples"], "article_id"=>850144, "categories"=>["Biological Sciences", "Ecology", "Earth and Environmental Sciences"], "users"=>["Karita Negandhi", "Isabelle Laurion", "Michael J. Whiticar", "Pierre E. Galand", "Xiaomei Xu", "Connie Lovejoy"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0078204.t002", "stats"=>{"downloads"=>5, "page_views"=>9, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Compilation_of_thaw_ponds_samples_collected_each_year_/850144", "title"=>"Compilation of thaw ponds samples collected each year.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-11-13 04:34:36"}
  • {"files"=>["https://ndownloader.figshare.com/files/1280059"], "description"=>"<p>(<b>a</b>) Map indicating the location of the study site on Bylot Island, Sirmilik National Park, Nunavut, Canada, (<b>b</b>) collapsed peat polygon ridges forming runnel ponds, and (<b>c</b>) landscape combining runnel and polygonal ponds.</p>", "links"=>[], "tags"=>[], "article_id"=>850138, "categories"=>["Biological Sciences", "Ecology", "Earth and Environmental Sciences"], "users"=>["Karita Negandhi", "Isabelle Laurion", "Michael J. Whiticar", "Pierre E. Galand", "Xiaomei Xu", "Connie Lovejoy"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0078204.g001", "stats"=>{"downloads"=>1, "page_views"=>6, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Study_site_description_/850138", "title"=>"Study site description.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-11-13 04:34:36"}
  • {"files"=>["https://ndownloader.figshare.com/files/1280067"], "description"=>"<div><p>Thawing permafrost in the Canadian Arctic tundra leads to peat erosion and slumping in narrow and shallow runnel ponds that surround more commonly studied polygonal ponds. Here we compared the methane production between runnel and polygonal ponds using stable isotope ratios, <sup>14</sup>C signatures, and investigated potential methanogenic communities through high-throughput sequencing archaeal 16S rRNA genes. We found that runnel ponds had significantly higher methane and carbon dioxide emissions, produced from a slightly larger fraction of old carbon, compared to polygonal ponds. The methane stable isotopic signature indicated production through acetoclastic methanogenesis, but gene signatures from acetoclastic and hydrogenotrophic methanogenic Archaea were detected in both polygonal and runnel ponds. We conclude that runnel ponds represent a source of methane from potentially older C, and that they contain methanogenic communities able to use diverse sources of carbon, increasing the risk of augmented methane release under a warmer climate.</p></div>", "links"=>[], "tags"=>["thaw", "unaccounted", "methane", "canadian"], "article_id"=>850146, "categories"=>["Biological Sciences", "Ecology", "Earth and Environmental Sciences"], "users"=>["Karita Negandhi", "Isabelle Laurion", "Michael J. Whiticar", "Pierre E. Galand", "Xiaomei Xu", "Connie Lovejoy"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0078204", "stats"=>{"downloads"=>1, "page_views"=>16, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Small_Thaw_Ponds_An_Unaccounted_Source_of_Methane_in_the_Canadian_High_Arctic_/850146", "title"=>"Small Thaw Ponds: An Unaccounted Source of Methane in the Canadian High Arctic", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-11-13 04:34:36"}
  • {"files"=>["https://ndownloader.figshare.com/files/1280062"], "description"=>"<p>(<b>a</b>) δ<sup>13</sup>CH<sub>4</sub> against δD<sub>CH4</sub> signatures of diffusive (2009) and ebullition (2011) CH<sub>4</sub>, indicating that acetoclastic methanogenesis (AM) is the dominant pathway in polygonal and runnel thaw ponds for samples collected in June/July. (<b>b</b>) δ<sup>13</sup>CO<sub>2</sub> against δ<sup>13</sup>CH<sub>4</sub> in thaw ponds showing the predominance of acetoclastic methanogenesis (AM) and the methanotrophic oxidation level for dissolved and ebullition CH<sub>4</sub>.</p>", "links"=>[], "tags"=>["pathway"], "article_id"=>850141, "categories"=>["Biological Sciences", "Ecology", "Earth and Environmental Sciences"], "users"=>["Karita Negandhi", "Isabelle Laurion", "Michael J. Whiticar", "Pierre E. Galand", "Xiaomei Xu", "Connie Lovejoy"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0078204.g003", "stats"=>{"downloads"=>0, "page_views"=>5, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Methane_production_pathway_through_stable_isotopes_/850141", "title"=>"Methane production pathway through stable isotopes.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-11-13 04:34:36"}
  • {"files"=>["https://ndownloader.figshare.com/files/1280061"], "description"=>"<p>Radiocarbon signature (Δ<sup>14</sup>C) plotted against δ<sup>13</sup>CH<sub>4</sub> and δ<sup>13</sup>CO<sub>2</sub> showing: 1) that as the fraction of young carbon becomes higher for both CH<sub>4</sub> and CO<sub>2</sub>, the δ<sup>13</sup>C signatures become more divergent indicating a decoupling in carbon source; 2) the runnel ponds CH<sub>4</sub> contains a higher fraction of old carbon.</p>", "links"=>[], "tags"=>["carbon"], "article_id"=>850140, "categories"=>["Biological Sciences", "Ecology", "Earth and Environmental Sciences"], "users"=>["Karita Negandhi", "Isabelle Laurion", "Michael J. Whiticar", "Pierre E. Galand", "Xiaomei Xu", "Connie Lovejoy"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0078204.g002", "stats"=>{"downloads"=>1, "page_views"=>6, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_CH_4_and_CO_2_carbon_source_and_age_/850140", "title"=>"CH<sub>4</sub> and CO<sub>2</sub> carbon source and age.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-11-13 04:34:36"}
  • {"files"=>["https://ndownloader.figshare.com/files/1280066"], "description"=>"<p>Surface sediment organic carbon content (OC as percent) samples were collected between 12 June and 15 July 2011.</p>", "links"=>[], "tags"=>["physicochemical", "ponds", "sampled", "archaeal", "communities", "19", "26", "july", "dissolved", "carbon", "mg", "soluble", "reactive", "phosphorus", "nitrogen", "nitrate", "sulfate"], "article_id"=>850145, "categories"=>["Biological Sciences", "Ecology", "Earth and Environmental Sciences"], "users"=>["Karita Negandhi", "Isabelle Laurion", "Michael J. Whiticar", "Pierre E. Galand", "Xiaomei Xu", "Connie Lovejoy"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0078204.t001", "stats"=>{"downloads"=>4, "page_views"=>3, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Surface_water_physicochemical_properties_of_the_four_ponds_sampled_for_archaeal_communities_between_19_and_26_July_2009_including_dissolved_organic_carbon_DOC_mg_L_8722_1_soluble_reactive_phosphorus_SRP_181_g_L_8722_1_total_phosphorus_TP_181_g_L_8722_1_t/850145", "title"=>"Surface water physicochemical properties of the four ponds sampled for archaeal communities between 19 and 26 July 2009, including dissolved organic carbon (DOC, mg L<sup>−1</sup>), soluble reactive phosphorus (SRP, µg L<sup>−1</sup>), total phosphorus (TP, µg L<sup>−1</sup>), total nitrogen (TN), nitrate (NO<sub>3</sub>), sulfate (SO<sub>4</sub>), iron (Fe) all in mg L<sup>−1</sup>, pH, and dissolved CO<sub>2</sub> and CH<sub>4</sub> concentrations, both in µM.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2013-11-13 04:34:36"}
  • {"files"=>["https://ndownloader.figshare.com/files/1280064"], "description"=>"<p>Methanogen taxa retrieved from the sediment of four Arctic thaw ponds and from one water sample. Checkered symbols represent AM and solid are HM.</p>", "links"=>[], "tags"=>["methanogenic", "thaw"], "article_id"=>850143, "categories"=>["Biological Sciences", "Ecology", "Earth and Environmental Sciences"], "users"=>["Karita Negandhi", "Isabelle Laurion", "Michael J. Whiticar", "Pierre E. Galand", "Xiaomei Xu", "Connie Lovejoy"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0078204.g004", "stats"=>{"downloads"=>0, "page_views"=>12, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Archaeal_methanogenic_community_of_thaw_ponds_/850143", "title"=>"Archaeal methanogenic community of thaw ponds.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2013-11-13 04:34:36"}

PMC Usage Stats | Further Information

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Relative Metric

{"start_date"=>"2013-01-01T00:00:00Z", "end_date"=>"2013-12-31T00:00:00Z", "subject_areas"=>[{"subject_area"=>"/Earth sciences/Geology", "average_usage"=>[338, 522, 664, 773, 911, 1046, 1140, 1236, 1318, 1410, 1496, 1596, 1683, 1755]}, {"subject_area"=>"/Earth sciences/Marine and aquatic sciences", "average_usage"=>[299, 492, 619, 718, 826, 932, 1037, 1143, 1246, 1333, 1414, 1517, 1575]}, {"subject_area"=>"/Ecology and environmental sciences/Aquatic environments", "average_usage"=>[276, 480, 624, 713, 810, 927, 1024, 1130, 1221, 1318, 1422, 1506, 1587]}, {"subject_area"=>"/Physical sciences", "average_usage"=>[254, 431, 547, 651, 748, 842, 932, 1017, 1098, 1178, 1259, 1336, 1404]}, {"subject_area"=>"/Physical sciences/Physics", "average_usage"=>[254, 421, 527, 626, 720, 813, 900, 983, 1063, 1136, 1210, 1283, 1342]}]}
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