GC23D:
Effects of Sea Ice on Arctic Biota Posters


Session ID#: 8330

Session Description:
The strong Arctic sea ice decrease in the last decades poses urgent questions regarding its ecological effects. These trends occur before we can fully understand many of the mechanisms that couple sea ice and biological processes, largely hampering our ability to predict and manage the consequences of this enormous environmental change.

Valuable short and patchy observations, traditional ecological knowledge, remotely sensed data, and a wealth of proxy data – ranging from sedimentary records to ancient DNA – constitute sources of information researchers employ to study these mechanisms linking sea ice and arctic ecosystems at a range of spatial and temporal scales.

This session will provide a forum to discuss the latest findings in this field, covering research in phenology, population dynamics, productivity, range dynamics – including invasive species and local/total extinctions, and long-term ecology inferred from phylogeography/molecular ecology and palaeo-proxies, for both terrestrial and marine ecosystems.

Primary Convener:  Marc Macias-Fauria, University of Oxford, Oxford, United Kingdom
Convener:  Eric Post, Pennsylvania State University Main Campus, University Park, PA, United States
Chairs:  Marc Macias-Fauria, University of Oxford, Oxford, United Kingdom and Eric Post, Pennsylvania State University Main Campus, University Park, PA, United States
OSPA Liaison:  Marc Macias-Fauria, University of Oxford, Oxford, United Kingdom

Cross-Listed:
  • B - Biogeosciences
  • C - Cryosphere
Index Terms:

0439 Ecosystems, structure and dynamics [BIOGEOSCIENCES]
0750 Sea ice [CRYOSPHERE]
1605 Abrupt/rapid climate change [GLOBAL CHANGE]
1621 Cryospheric change [GLOBAL CHANGE]

Abstracts Submitted to this Session:

Primary production and biochemical compositions in Arctic melt ponds. (64017)
Sang Lee, Pusan National University, Busan, Korea, Republic of (South)
Phytoplankton Bloom Dynamics in Greenland Sea Using Ocean Color Remote Sensing (75991)
Dae-Hyuk Lee and Hyun Cheol Kim, Korea Polar Research Institute, Incheon, Korea, Republic of (South)
Satellite estimates of trends in magnitude and timing of phytoplankton pigments, primary production and export production in the Arctic Ocean (68715)
Mati Kahru, University of California San Diego, La Jolla, CA, United States, Brian Greg Mitchell, Scripps Institution of Oceanography, La Jolla, CA, United States and Zhongping Lee, University of Massachusetts Boston, Boston, MA, United States
Increased Arctic Sea Ice Drift Alters Polar Bear Movements and Energetics (75550)
David C Douglas1, George M Durner1, Shannon Edward Albeke2, John P Whiteman3, Steven C Amstrup4, Evan Richardson5, Ryan R Wilson6 and Merav Ben-David3, (1)USGS Alaska Science Center, Anchorage, AK, United States, (2)University of Wyoming, Wyoming Geographic Information Science Center, Laramie, WY, United States, (3)University of Wyoming, Department of Zoology and Physiology, Laramie, WY, United States, (4)Polar Bears International, Bozeman, MT, United States, (5)Canadian Wildlife Service, Edmonton, AB, Canada, (6)US Fish and Wildlife Service, Marine Mammals Management, Anchorage, AK, United States
The Effects of Changing Sea Ice on Marine Mammals and Their Hunters in Northern Alaska (75477)
Henry Huntington, Self Employed, Washington, DC, United States, Lori Quakenbush, Alaska Department of Fish and Game, Fairbanks, United States and Mark Nelson, Alaska Department of Fish and Game, Fairbanks, AK, United States
Sparse ice: Geophysical, biological and Indigenous knowledge perspectives on a habitat for ice-associated fauna (75686)
Olivia Astillero Lee, University of Alaska Fairbanks, Geophysical Institute, Fairbanks, AK, United States, Hajo Eicken, University of Alaska Fairbanks, Institute of Marine Science, Fairbanks, AK, United States, Winton Weyapuk Jr., Community of Wales, Wales, AK, United States, Billy Adams, North Slope Borough Department of Wildlife Management, Barrow, United States and Andrew R Mahoney, Geophysical Institute, Fairbanks, United States
The Role of Sea Ice for Vascular Plant Dispersal in the Arctic (Invited) (72342)
Inger Greve Alsos, UiT-The Arctic University of Norway, Tromsø, Norway, Marit-Solveig Seidenkrantz, Aarhus University, Department of Geoscience, Aarhus, Denmark, Ole Bennike, GEUS, Copenhagen, Denmark, Andreas Kirchhefer, Dendroøkologen, Tromsø, Norway, Dorothee Ehrich, Department of Arctic and Marine Biology, UiT, The Arctic University of Norway, Norway and Aslaug Geirsdottir, University of Iceland, Faculty of Earth Sciences, Reykjavik, Iceland
Sea ice-induced cold air advection as a mechanism controlling tundra primary productivity (80251)
Marc Macias-Fauria, University of Oxford, Oxford, United Kingdom and Stein-Rune Karlsen, Northern Research Institute (NORUT), Tromsø, Norway
Sea Ice, Hydrocarbon Extraction, Rain-on-Snow and Tundra Reindeer Nomadism in Arctic Russia (63730)
Bruce C. Forbes1, Timo Kumpula2, Nina Meschtyb3, Roza Laptander3, Marc Macias-Fauria4, Pentti Zetterberg5 and Mariana Verdonen6, (1)University of Lapland, Arctic Centre, Rovaniemi, Finland, (2)University of Eastern Finland, Department of Geographical and Historical Studies, Joensuu, Finland, (3)University of Lapland, Rovaniemi, Finland, (4)University of Oxford, Oxford, United Kingdom, (5)University of Eastern Finland, Joensuu, Finland, (6)Agricultural University of Iceland, Environmental and Forest Sciences, Reykjavik, Iceland

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