B013
Arctic to Tropics: Converging on a Shared Understanding of the Consequential Processes Governing Ecosystem Methane Emissions at the Forefront of Global Change

Session ID#: 162189

Session Description:
Rapidly rising atmospheric methane concentrations and associated shifts in stable isotope composition are likely related to global change effects on natural ecosystems. Arctic and tropical ecosystems (e.g. lowland forests, wetlands, inland waters) are both key contributors of microbial methane emissions and vulnerable regions at the forefront of climate and land use change. Quantifying, and balancing, methane sources and sinks from these ecosystems is challenging because the underlying processes of production, oxidation, and transport are highly spatiotemporally variable. Historically, the research communities focused on Arctic and tropical ecosystems have operated separately, limiting understanding of overarching commonalities, and consequential differences, in the mechanisms giving rise to methane emissions. We encourage submissions from both Arctic and tropical ecosystems with the goal of collectively comparing methane cycling across these vulnerable regions. These studies may include field- or incubation-based flux and isotope measurements, quantification of process rates, and characterization of microbiota.
Index Terms:

0428 Carbon cycling [BIOGEOSCIENCES]
0497 Wetlands [BIOGEOSCIENCES]
1615 Biogeochemical cycles, processes, and modeling [GLOBAL CHANGE]
1630 Impacts of global change [GLOBAL CHANGE]

Primary Convener:  Clarice R Perryman, University of New Hampshire Main Campus, Department of Earth Sciences and Institute for the Study of Earth, Oceans, and Space, Durham, NH, United States
Conveners:  McKenzie Ann Kuhn, University of New Hampshire Main Campus, Department of Earth Sciences and Institute for the Study of Earth, Oceans, and Space, Durham, United States, Alexandra Hedgpeth, University of California Los Angeles, Geography, Los Angeles, United States and Ruth K Varner, University of New Hampshire, Durham, NH, United States
 
Linking Biogeochemical and Hydrodynamic Processes to Model Methane Fluxes in Tropical Floodplain Lakes (1077095)
John M Melack1, Mingyang Guo2, Wencai Zhou3, Pedro Maia Barbosa4 and Joao H. Amaral3, (1)University of California Santa Barbara, Earth Research Institute, Santa Barbara, CA, United States, (2)Purdue University, West Lafayette, IN, United States, (3)University of California Santa Barbara, Santa Barbara, CA, United States, (4)University of Quebec at Montreal UQAM, Montreal, QC, Canada
 
Spatial and temporal variation of δ13C values of methane emitted from a hemiboreal mire (1104497)
Janne Rinne1,2, Patryk Łakomiec1, Patrik Vestin3, Joel D White1, Per Weslien4, Julia Kelly5, Natascha Kljun5, Lena Strom3 and Leif Klemedtsson6, (1)Lund University, Department of Physical Geography and Ecosystem Science, Lund, Sweden, (2)Natural Resources Institute Finland, Helsinki, Finland, (3)Lund University, Lund, Sweden, (4)University of Gothenburg, Department of Earth Sciences, Gothenburg, Sweden, (5)Lund University, Centre for Environmental and Climate Research, Lund, Sweden, (6)University of Gothenburg, Gothenburg, Sweden
 
Toward a metabolomic understanding of organic electron acceptors in peatland soils (1109509)
Jason Keller1, Cassandra Zalman1, Alex Joseph1 and Rachel Wilson2, (1)Chapman University, Schmid College of Science and Technology, Orange, United States, (2)Florida State University, Department of Earth, Ocean & Atmospheric Science, Tallahassee, FL, United States
 
Linking Lateral Carbon Transport to Vertical Carbon Fluxes across the Terrestrial-Aquatic Interface in a Thawing Permafrost Peatland (1121316)
Cheristy Jones, University of New Hampshire Main Campus, Durham, United States, Lyreshka Castro Morales, Alaska Pacific University, Anchorage, United States, Claire Beezley, Georgetown University, Washington, United States, Kenneth R De Leon Colon, Clemson University, Clemson, SC, United States, McKenzie Ann Kuhn, University of New Hampshire Main Campus, Department of Earth Sciences and Institute for the Study of Earth, Oceans, and Space, Durham, United States, Clarice R Perryman, University of New Hampshire Main Campus, Department of Earth Sciences and Institute for the Study of Earth, Oceans, and Space, Durham, NH, United States and Ruth K Varner, University of New Hampshire, Durham, NH, United States
 
Plant-Mediated Gas Transport as Consequential but Little-Understood Process Governing Methane Emissions in both Tropical Forests and Thawing Permafrost Arctic Wetlands (Invited) (1132216)
Laetitia M Brechet1, Richard Wehr Sr.2, Joost L M Van Haren3, Jose Mauro Sousa Moura4, Daniel Jati4, Ivan A. Janssens Sr.5, Warren Daniel5, Clément Stahl6, Benoit Burban7, Jean-Yves Goret8, Carmody K McCalley9, Patrick M Crill10, Jeff Chanton11, Suzanne Hodgkins12, Caitlin M. Singleton13, Ben J. Woodcroft14, Gene W. Tyson15, Ruth K Varner16, Virginia Rich17, Taiane Alves da Silva4, Rodrigo da Silva18, Raphael Pablo Tapajós4, Amanda Frederico Mortati4, Raimundo Cosme Oliveira Junior19, Acacio Aparecido Navarrete20 and Scott R Saleska21, (1)University of Arizona, Department of Ecology & Evolutionary Biology, Tucson, United States, (2)Aerodyne Research Inc., Billerica, United States, (3)University of Arizona, Biosphere 2, Tucson, United States, (4)Federal University of Western Para, Santarem, Brazil, (5)Universiteit Antwerpen, Antwerpen, Belgium, (6)Joint Research Unit Ecology of Guiana Forests (UMR EcoFoG), Kourou, French Guiana, (7)INRAE, UMR EcoFoG, CNRS, Cirad, AgroParisTech, Université des Antilles, Université de Guyane, Kourou, France, (8)INRAE Institute National de la Reserche Agronomique, UMR Ecologie des Forets de Guyane, BP 316 Avenue de France Kourou Cedex, French Guiana, (9)Rochester Institute of Technology, Rochester, NY, United States, (10)Stockholm University, Stockholm, Sweden, (11)Florida State University, Tallahassee, FL, United States, (12)The Ohio State University, Department of Microbiology, Columbus, United States, (13)Centre for Ecogenomics, Brisbane, Australia, (14)University of Queensland, St Lucia, Australia, (15)University of Queensland, St. Lucia, Australia, (16)University of New Hampshire, Durham, NH, United States, (17)Ohio State University Main Campus, Columbus, United States, (18)Federal University of Western Pará, Santarém, Brazil, (19)Embrapa Amazônia Oriental, Santarém, Brazil, (20)Brazil University, Sao Polo, Brazil, (21)University of Arizona, Department of Ecology & Evolutionary Biology, Tucson, AZ, United States
 
Beyond what the eye can see: using high-resolution UAS-derived hyperspectral imagery to classify boreal peatland vegetation (1148519)
Sophia A Burke1,2, Michael W Palace3, Franklin Sullivan2, Clarice R Perryman4, Christina Herrick2, McKenzie Ann Kuhn5, Christopher Schulze6, Liam Heffernan7, David Olefeldt6, Oliver Sonnentag8 and Ruth K Varner2,9, (1)University of New Hampshire, Department of Earth Sciences, Durham, United States, (2)University of New Hampshire, Earth Systems Research Center, Durham, United States, (3)University of New Hampshire, Dept. of Earth Sciences and Earth Systems Research Center, Durham, United States, (4)University of New Hampshire Main Campus, Department of Earth Sciences and Institute for the Study of Earth, Oceans, and Space, Durham, NH, United States, (5)University of New Hampshire Main Campus, Department of Earth Sciences and Institute for the Study of Earth, Oceans, and Space, Durham, United States, (6)University of Alberta, Department of Renewable Resources, Edmonton, AB, Canada, (7)Uppsala University, Department of Ecology and Genetics/Limnology, Uppsala, Sweden, (8)Université de Montréal, Département de géographie, Montréal, QC, Canada, (9)University of New Hampshire, Department of Earth Sciences, Durham, NH, United States
 
Aerobic Methane (CH4) Oxidation in Surface Water of the Arctic Lakes in Stordalen Mire, Sweden (1156989)
Kenneth R De Leon Colon, Clemson University, Clemson, SC, United States, Lyreshka Castro Morales, Alaska Pacific University, Anchorage, United States, Claire Beezley, Georgetown University, Washington, United States, Maria Florencia Fahnestock, University of New Hampshire, Durham, United States, Ruth K Varner, University of New Hampshire, Durham, NH, United States, McKenzie Ann Kuhn, University of New Hampshire Main Campus, Department of Earth Sciences and Institute for the Study of Earth, Oceans, and Space, Durham, United States and Clarice R Perryman, University of New Hampshire, Earth Sciences, Durham, United States
 
Lateral and Vertical Methane Dynamics: Understanding Soil/Sediment Biogeochemistry in Terrestrial and Aquatic Environments in Permafrost Thaw Transitions, Stordalen Mire (1157252)
Lyreshka Castro Morales, Alaska Pacific University, Anchorage, United States, Kenneth R De Leon Colon, Clemson University, Clemson, SC, United States, Claire Beezley, Georgetown University, Washington, United States, Cheristy Jones, University of New Hampshire Main Campus, Durham, United States, Maria Florencia Fahnestock, University of New Hampshire, Durham, United States, Ruth K Varner, University of New Hampshire, Durham, NH, United States and McKenzie Ann Kuhn, University of New Hampshire Main Campus, Department of Earth Sciences and Institute for the Study of Earth, Oceans, and Space, Durham, United States
 
Dispersing Microbial Communities Increases Variability in Methane Fluxes in Arctic Sweden (1160907)
Torin Scalora-Riley1, Parker Stoddard2, Tallulah Biletzskov3, McKenzie Ann Kuhn4, Lukas Bernhardt5, Nathan Alexander6, Hannah Holland Moritz6, Maria Florencia Fahnestock6, Ruth K Varner5 and Jessica Gilman Ernakovich6, (1)University of New Hampshire Main Campus, Durham, NH, United States, (2)University of Science and Arts Oklahoma, Chickasha, United States, (3)Florida State University, Tallahassee, FL, United States, (4)University of New Hampshire Main Campus, Department of Earth Sciences and Institute for the Study of Earth, Oceans, and Space, Durham, United States, (5)University of New Hampshire, Durham, NH, United States, (6)University of New Hampshire, Durham, United States
 
How Much Methane Could Lakes and Reservoirs Emit in the Future? (1175799)
David Bastviken, Linköping University, Linköping, Sweden and Matthew S Johnson, NASA Ames Research Center, Moffett Field, CA, United States
 
Variability in Edge and Center Methane Fluxes in Two Post-Glacial Lakes in Northern Sweden (1182254)
Claire Beezley, Georgetown University, Washington, United States, Cheristy Jones, University of New Hampshire Main Campus, Durham, United States, Lyreshka Castro Morales, Alaska Pacific University, Anchorage, United States, Kenneth R De Leon Colon, Clemson University, Clemson, SC, United States, Maria Florencia Fahnestock, University of New Hampshire, Durham, United States, Ruth K Varner, University of New Hampshire, Durham, NH, United States and McKenzie Ann Kuhn, University of New Hampshire Main Campus, Department of Earth Sciences and Institute for the Study of Earth, Oceans, and Space, Durham, United States
 
WATER PANS AS HOT SPOTS FOR METHANE EMISSIONS IN ARID AND SEMI-ARID REGIONS OF EAST AFRICA (1193583)
Gretchen M Gettel1, Collins Muhadia2,3, Oswald Omuron1, Sonja Leitner2, Polly Ericksen2 and Klaus Butterbach-Bahl4,5, (1)IHE-Delft Institute for Water Education, Delft, Netherlands, (2)International Livestock Research Institute, Nairobi, Kenya, (3)Karlsruhe Institute of Technology, Karlsruhe, Germany, (4)Aarhus University, Department of Agroecology, Aarhus C, Denmark, (5)Karlsruhe Institute of Technology, Institute of Meterology and Climate Atmosphere Environmental Research, Karlsruhe, Germany
 
Methane fluxes in the Arctic wetland: finer resolution upscaling using machine learning and remote sensing (1198139)
Qing Ying1, Zhen Zhang1, Benjamin Poulter2, Susan Natali3, Hilary Sullivan3, Brendan M Rogers3 and Jennifer Watts3, (1)University of Maryland College Park, College Park, MD, United States, (2)NASA GSFC, Biospheric Science, Greenbelt, MD, United States, (3)Woodwell Climate Research Center, Falmouth, United States
See more of: Biogeosciences
<< Previous Session Proposal | Next Session Proposal >>