GC23I:
C4 Photosynthesis in the Earth System I

Session ID#: 2855

Tuesday, 16 December 2014: 1:40 PM-3:40 PM
3001 (Moscone West)
Chairs:  Stephanie Pau, Florida State University, Geography, Tallahassee, FL, United States, David L. Fox, University of Minnesota Twin Cities, Minneapolis, MN, United States, Christopher J Still, Oregon State University, Forest Ecosystems and Society, Corvallis, OR, United States and Caroline A E Strömberg, University of Washington Seattle Campus, Department of Biology and Burke Museum, Seattle, WA, United States
Primary Convener:  Stephanie Pau, Florida State University, Geography, Tallahassee, FL, United States
Co-conveners:  Christopher J Still, Oregon State University, Forest Ecosystems and Society, Corvallis, OR, United States, David L. Fox, University of Minnesota Twin Cities, Earth and Environmental Sciences, Minneapolis, United States and Caroline A E Strömberg, University of Washington, Biology & Burke Museum of Natural History & Culture, Seattle, United States
OSPA Liaison:  Stephanie Pau, Florida State University, Geography, Tallahassee, FL, United States
Co-Sponsor(s):
  • A - Atmospheric Sciences
  • B - Biogeosciences
  • H - Hydrology
  • PP - Paleoceanography and Paleoclimatology
Virtual Option?: No

Abstracts Submitted to this Session:

The Paleo-ecology of C4 Evolution (16708)
Rowan F Sage and Roxana Khoshravesh, University of Toronto, Ecology and Evolutionary Biology, Toronto, ON, Canada
Divergent evolutionary histories of C4 grasses shape global grassland ecology (Invited) (4439)
Caroline Lehmann, University of Edinburgh, Edinburgh, United Kingdom, Daniel M Griffith, Oregon State University, Forest Ecosystems and Society, Corvallis, United States, Colin Osborne, University of Sheffield, Animal and Plant Sciences, Sheffield, United Kingdom and C4 Grasslands Working Group
Why Are C3-C4 Intermediate Species Rare? (30527)
Jennifer E Johnson1, Christopher B Field2 and Joseph A Berry1, (1)Carnegie Institution for Science, Department of Global Ecology, Stanford, United States, (2)Stanford University, Stanford Woods Institute for the Environment, Stanford, CA, United States
Leaf oxygen and Carbon Isotopic Signatures Reflect Drought Resistance and Water Use Efficiency in the C4 Grass, Setaria viridis (30913)
Patrick Ellsworth, Patricia Ellsworth and Asaph B Cousins, Washington State University, Pullman, WA, United States
Ecological Change in the Turkana Basin Over the Past 4 Ma (22644)
Thure E Cerling, University of Utah, Department of Geology and Geophysics, Salt Lake City, United States
Did Hydrological Change Drive the Expansion of C4 Grasslands in the Siwaliks during the Late Miocene? (22632)
Jennifer Lee Pensky, Barnard College, New York, NY, United States, Samuel R Phelps, Columbia University of New York, Dept. of Earth and Environmental Science, Palisades, NY, United States, Kevin T Uno, Lamont -Doherty Earth Observatory, Biology and Paleo Environment, Palisades, NY, United States and Pratigya J Polissar, Lamont-Doherty Earth Observatory, Palisades, United States
Spatiotemporal Variation in the Environmental Controls of C4-Grass Origin and Ecology: Insights from Grass-Pollen δ13C Data (6504)
David M Nelson1, Michael Urban2 and Fengsheng Hu2,3, (1)University of Maryland Center for Environmental Science Appalachian Laboratory, Frostburg, MD, United States, (2)University of Illinois at Urbana Champaign, Program in Ecology, Evolution and Conservation Biology, Urbana, IL, United States, (3)University of Illinois at Urbana Champaign, Plant Biology, Geology, Urbana, United States
The spatial distribution of C3 and C4 grasses in North America through the next century (24219)
Jennifer M Cotton, California State University, Northridge, Los Angeles, CA, United States, Thomas M. Mosier, Oregon State University, Corvallis, OR, United States, Thure E Cerling, University of Utah, Department of Geology and Geophysics, Salt Lake City, United States, James R Ehleringer, University of Utah, Salt Lake City, UT, United States, Kathryn A Hoppe, Green River Community College, Auburn, WA, United States and Christopher J Still, Oregon State University, Forest Ecosystems and Society, Corvallis, OR, United States