B039:
Impacts of Vegetation Change on Biogeochemical and Biophysical Processes in Arctic Tundra Ecosystems





Session ID#: 26795

Session Description:
Arctic ecosystems are undergoing rapid change.  Strong positive feedbacks to warming are possible in these ecosystems as carbon stored in permafrost soils is mobilized and evades to the atmosphere.  However, vegetation is also changing and could alter biogeochemical cycling and biophysical processes in a way that offsets permafrost carbon release. Understanding how vegetation will alter biogeochemical cycling and biophysical processes as climate warms will allow better prediction of the future states of these ecosystems.  Presentations are invited which use long term baseline studies, remote sensing, and process-level experiments to illustrate trends in vegetation and/or biogeochemical and biophysical feedbacks across different spatial and temporal scales, in order to enable prediction of future functional states of arctic ecosystems.  This session will provide a forum for researchers to link tundra vegetation science via remote sensing, phenology, population- and ecosystem- ecology to address ecological dynamics in high-latitude ecosystems, and to promote collaboration.
Primary Convener:  Marion Syndonia Bret-Harte, University of Alaska Fairbanks, Fairbanks, AK, United States
Convener:  Michelle C Mack, Northern Arizona University, Flagstaff, AZ, United States

Cross-Listed:
  • C - Cryosphere
  • GC - Global Environmental Change

Abstracts Submitted to this Session:

Yongwon Kim1, Sang-Jong Park2, Rikie Suzuki3 and Bang-Yong Lee2, (1)University of Alaska Fairbanks, Fairbanks, AK, United States, (2)Korea Polar Research Institute, Division of Polar Climate Sciences, Incheon, South Korea, (3)Japan Agency for Marine-Earth Science and Technology, Department of Environmental Geochemical Cycle Research, Yokohama, Japan
Rachael E McCaully1, Carli A Arendt2, Brent D Newman3, Jeffrey M Heikoop3, Cathy Jean Wilson4, Sanna Sevanto5, Nathan A Wales5 and Stan Wullschleger6, (1)North Carolina State University Raleigh, Raleigh, NC, United States, (2)Green River College, Geology, Auburn, WA, United States, (3)LANL, Los Alamos, NM, United States, (4)Los Alamos National Lab, Los Alamos, NM, United States, (5)Los Alamos National Laboratory, Los Alamos, NM, United States, (6)Oak Ridge National Laboratory, Environmental Sciences Division, Oak Ridge, TN, United States
Uma Suren Bhatt1, Donald A Walker1, Martha K Raynolds1, Peter Bieniek2, Howard E Epstein3, Josefino C Comiso4, Jorge E Pinzon5 and Compton J Tucker6, (1)University of Alaska Fairbanks, Fairbanks, AK, United States, (2)International Arctic Research Center, Fairbanks, AK, United States, (3)University of Virginia, Charlottesville, VA, United States, (4)NASA Goddard SFC, Greenbelt, MD, United States, (5)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (6)NASA Goddard Space Flight Cen., Greenbelt, MD, United States
Rebecca E Hewitt, Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, AZ, United States, Genet Helene, University of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, AK, United States, Donald Lee Taylor, University of New Mexico, Department of Biology, Albuquerque, NM, United States, Anthony David McGuire, U.S. Geological Survey, Fairbanks, AK, United States and Michelle C Mack, Northern Arizona University, Flagstaff, AZ, United States
Benjamin Gaglioti1, Daniel H Mann2, Carson A. Baughman3, Benjamin M Jones3, Louise Melanie Farquharson2, Walton Williamson4 and Laia Andreu-Hayles5, (1)Lamont -Doherty Earth Observatory, Palisades, NY, United States, (2)University of Alaska Fairbanks, Geosciences Department, Fairbanks, AK, United States, (3)U.S. Geological Survey, Alaska Science Center, Anchorage, AK, United States, (4)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (5)Columbia University of New York, Tree-Ring Laboratory, Palisades, NY, United States
Ruth Chaves Heindel1,2, Francesca C Governali1, Angela M Spickard3 and Ross A Virginia3, (1)Dartmouth College, Department of Earth Sciences, Hanover, NH, United States, (2)Institute of Arctic and Alpine Research, Boulder, CO, United States, (3)Dartmouth College, Environmental Studies Program, Hanover, NH, United States
Sanna Sevanto1, Chonggang Xu2, Colleen M. Iversen3, Verity G Salmon4, Alistair Rogers5, Stan Wullschleger4 and Cathy J Wilson1, (1)Los Alamos National Laboratory, Los Alamos, NM, United States, (2)Los Alamos National Laboratory, Earth and Environmental Sciences Division, Los Alamos, NM, United States, (3)Oak Ridge National Laboratory, Oak Ridge, TN, United States, (4)Oak Ridge National Laboratory, Environmental Sciences Division, Oak Ridge, TN, United States, (5)Brookhaven National Laboratory, Environmental and Climate Sciences Department, Upton, NY, United States
Joanna Carey1,2, Ned Fetcher3, Thomas Parker4, Adrian V Rocha5 and Jianwu Tang1, (1)Marine Biological Laboratory, Woods Hole, MA, United States, (2)Babson College, Division of Math & Science, Wellesley, MA, United States, (3)Wilkes University, Biology, Wilkes-Barre, PA, United States, (4)University of Stirling, Stirling, FK9, United Kingdom, (5)Univ of Notre Dame, Notre Dame, IN, United States
Peter M Homyak1, Sadie L Iverson2, Eric Slessarev1, Ken Marchus1 and Joshua Schimel1, (1)University of California Santa Barbara, Santa Barbara, CA, United States, (2)UC Santa Barbara, Santa Barbara, CA, United States
Zelalem Amdie Mekonnen1, William J Riley1 and Robert F Grant2, (1)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (2)Univ. of Alberta, Edmonton, AB, Canada
Salvatore Rex Curasi, University of Notre Dame, Department of Biological Sciences, Notre Dame, IN, United States, Adrian V Rocha, Univ of Notre Dame, Notre Dame, IN, United States and Susan Natali, Woods Hole Research Center, Falmouth, MA, United States
Genta Suzuki1, Takeru Sakka1, Tatsuya Tashiro1, Hiroshi Kawamata2, Shirow Tatsuzawa3, Nobuyasu Naruse2,4 and Yukihiro Takahashi5,6, (1)Hokkaido University, Global Science Campus, Sapporo, Japan, (2)Hokkaido University, Global Science Campus and Institute for the Advancement of Higher Education, Sapporo, Japan, (3)Hokkaido University, Graduate School of Letters, Sapporo, Japan, (4)Shiga University of Medical Science, Otsu, Japan, (5)Hokkaido University, Department of Cosmosciences, Sapporo, Japan, (6)Hokkaido University, Graduate School of Science, Sapporo, Japan
Haley Dunleavy and Michelle C Mack, Northern Arizona University, Flagstaff, AZ, United States
Julia Stuart1, Michelle C Mack1, Hannah Holland Moritz2, Noah Fierer2, Stuart McDaniels3 and Lily Lewis3, (1)Northern Arizona University, Flagstaff, AZ, United States, (2)University of Colorado at Boulder, Boulder, CO, United States, (3)University of Florida, Gainesville, United States
Lorna Street, University of Edinburgh, Edinburgh, United Kingdom, Philip A Wookey, University of Stirling, Biological and Environment Sciences, Stirling, United Kingdom, Jens-Arne Subke, University of Stirling, Stirling, United Kingdom, Robert Baxter, University of Durham, Durham, DH1, United Kingdom and Mark Garnett, Scottish Universities Environmental Research Center at the University of Glasgow, NERC Radiocarbon Facility, East Kilbride, United Kingdom
Verity G Salmon1, Colleen M. Iversen1, Amy Lynn Breen2, Peter E Thornton1 and Stan Wullschleger3, (1)Oak Ridge National Laboratory, Oak Ridge, TN, United States, (2)University of Alaska Fairbanks, Scenarios Network for Alaska & Arctic Planning, Fairbanks, AK, United States, (3)Oak Ridge National Laboratory, Environmental Sciences Division, Oak Ridge, TN, United States

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