GC42A:
Biota and Biogeochemical Cycling: Ecological Patterns and Processes across Scales in the Arctic I

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Session ID#: 15662

Session Description:
The Arctic is rapidly changing as the climate warms, yet how this change is altering ecological dynamics across scales is poorly understood. Decades of plot- and satellite-based studies underpin our understanding of change in Arctic systems, but linking patterns and processes across levels of ecological organization has traditionally been hampered by a lack of moderate-scale data.

The application of emerging methods - including the integration of unmanned aerial systems (UAS), time-lapse photography, multi-platform satellite observations and cross site ecological data synthesis – are filling a long-standing gap in our understanding of how scale affects observed and predicted ecological change.

This session will provide a forum for researchers from the fields of tundra remote sensing, phenology, population- and ecosystem- ecology to address concepts of scale-dependent ecological dynamics in high-latitude ecosystems.  Each presentation will address how working across scales can improve our understanding of the ecological processes reshaping the rapidly changing Arctic.
Primary Convener:  Jeffrey Kerby, Dartmouth College, Hanover, NH, United States
Conveners:  Howard E Epstein, University of Virginia, Environmental Sciences, Charlottesville, VA, United States, Marion Syndonia Bret-Harte, University of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, AK, United States and Sally MacIntyre, University of California Santa Barbara, Santa Barbara, CA, United States
Chairs:  Jeffrey Kerby, Dartmouth College, Hanover, NH, United States, Marion Syndonia Bret-Harte, University of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, AK, United States and Isla H Myers-Smith, Université de Sherbrooke, Sherbrooke, Canada
OSPA Liaison:  Jeffrey Kerby, Dartmouth College, Hanover, NH, United States

Cross-Listed:
  • B - Biogeosciences
Index Terms:

1630 Impacts of global change [GLOBAL CHANGE]
1632 Land cover change [GLOBAL CHANGE]
1637 Regional climate change [GLOBAL CHANGE]
1640 Remote sensing [GLOBAL CHANGE]

Abstracts Submitted to this Session:

Disentangling the mechanisms of the coupling between sea ice and tundra productivity: cold air advection vs. arctic amplification. (Invited) (133384)
Marc Macias-Fauria, University of Cambridge, Cambridge, United Kingdom, Stein-Rune Karlsen, Northern Research Institute (NORUT), Tromsø, Norway and Prof. Bruce C. Forbes, PhD, University of Lapland, Arctic Centre, Rovaniemi, Finland
Scaling arctic tundra vegetation from plot to the landscape across the North Slope of Alaska, U.S.A (118529)
Scott James Davidson, University of Sheffield, Sheffield, United Kingdom; San Diego State University, San Diego, CA, United States, Maria J. Santos, Utrecht University, Utrecht, Netherlands, Victoria L Sloan, University of Bristol, Bristol, United Kingdom, Jennifer D Watts, University of Montana, Numerical Terradynamic Simulation Group, W.A. Franke College of Forestry & Conservation, Missoula, MT, United States, Gareth K Phoenix, University of Sheffield, Sheffield, S10, United Kingdom, Walter C Oechel, San Diego State University, Department of Biology, San Diego, CA, United States; The Open University, Environment, Earth, and Ecosystems, Milton Keynes, United Kingdom and Donatella Zona, San Diego State University, Department of Biology, San Diego, United States; University of Sheffield, Department of Animal and Plant Science, Sheffield, United Kingdom
Shrub growth response to climate across the North Slope of Alaska (166378)
Daniel Ackerman, University of Minnesota Twin Cities, Ecology, Evolution, and Behavior, St. Paul, MN, United States, Daniel Griffin, University of Minnesota, Geography, Environment & Society and Saint Anthony Falls Laboratory, Minneapolis, United States, Jacques C Finlay, University of Minnesota Twin Cities, Minneapolis, MN, United States and Sarah E Hobbie, University of Minnesota Twin Cities, Department of Ecology, Evolution, and Behavior, St. Paul, MN, United States
How spatial scale influences novel and disappeared climate predictions in Alaska (193826)
Bailey Danielle Morrison1, Joseph Napier2, Guillaume de Lafontaine3, Katy Heath4, Bo Li5, Barbara Hug1, Fengsheng Hu1 and Jonathan A Greenberg6, (1)University of Illinois at Urbana Champaign, Urbana, IL, United States, (2)University of Texas at Austin, Austin, TX, United States, (3)University of Quebec at Rimouski UQAR, Rimouski, QC, Canada, (4)University of Illinois at Urbana Champaign, Plant Biology, Urbana, IL, United States, (5)University of Illinois at Urbana Champaign, Urbana, United States, (6)University of Nevada, Reno, Natural Resources and Environmental Science, Reno, NV, United States
Sudying vole and lemming cycles using drones (Invited) (121747)
Johan Olofsson, Umeå University, Ecology and Environmental Science, Umeå, Sweden
Dissecting Drivers of Arctic Plant Phenology Across Scales in Time and Space (178071)
Christian John and Eric Post, Pennsylvania State University Main Campus, University Park, PA, United States
Linking vegetation greenness and seasonal snow characteristics using field observations, SnowModel, and daily MODIS imagery in high-Arctic Greenland (175247)
Stine Højlund Pedersen, Aarhus University, Arctic Research Centre, Department of Bioscience, Aarhus C, Denmark, Glen E Liston, Colorado State University, Cooperative Institute for Research in the Atmosphere - CIRA, Fort Collins, CO, United States, Mikkel P Tamstorf, Aarhus University, Arctic Research Centre, Department of Bioscience, Roskilde, Denmark, Niels Martin Schmidt, Aarhus University, Department of Bioscience, Roskilde, Denmark and Jakob Abermann, University of Graz, Geography and Regional Science, Graz, Austria
Two-year record of trace gas (CO2, CH4, O2, and Hg0) concentrations and dynamics in arctic tundra soils of northern Alaska – seasonality, non-linear temperature controls, and effects of soil diffusivity (Invited) (165277)
Daniel Obrist1, Yannick Agnan2, Christine Olson3, Christopher W Moore4, Dr. Detlev Helmig5, Jacques Hueber6 and Dominique Paxton5, (1)Center for Biofilm Engineering, Bozeman, MT, United States, (2)Desert Research Institute Reno, Reno, NV, United States, (3)University of Colorado at Boulder, Boulder, United States, (4)University of South Carolina, Columbia, South Carolina, United States, (5)University of Colorado at Boulder, Institute of Arctic and Alpine Research, Boulder, CO, United States, (6)Boulder A.I.R., Boulder, United States

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