95th ESA Annual Meeting (August 1 -- 6, 2010)

SYMP 17 - Pondering the Future by Peering into the Past: Integrating Paleoecology and Contemporary Research to Predict Grassland and Shrubland Responses to Climate Change

Thursday, August 5, 2010: 8:00 AM-11:30 AM
403-405, David L Lawrence Convention Center
Rebecca L. McCulley
Mark Brunson and Kendra K. McLauchlan
Mark Brunson
We’ve all heard Winston Churchill’s admonition that those who fail to learn from history are doomed to repeat it. With global climate change the earth is entering a future that may be unlike any we’ve known before, yet still we can and must learn from ecological history in order to understand and address the challenges we face. In this symposium we bring together paleoecologists who have studied historical changes in climate with field ecologists who focus on questions of future change in order to enhance our collective understanding of how grassland and shrubland ecosystems are likely to respond to global warming. Our speakers include paleoecologists whose work has utilized a variety of tools to understand past vegetation change at multiple spatial and temporal scales, and field ecologists who employ experimental, observational, and modeling approaches to assess how rangelands are likely to change under conditions of global warming and changes in precipitation regime. In keeping with ESA’s overall theme for 2010, the broad goal of this symposium is to highlight how different approaches to the science of ecology can help inform our current predictions of grassland and shrubland responses to climate change as well as to identify critical information needs for improved predictive capacity.
ESA Rangeland Ecology Section, ESA Paleoecology Section
8:00 AM
Trends in the Holocene climate, vegetation, and fire history of grasslands in the Midwest and Northern Great Plains, U.S.A
David M. Nelson, University of Maryland Center for Environmental Science; Eric C. Grimm, Illinois State Museum
9:00 AM
Ecosystem sensitivity to climate warming: a modeling approach
Osvaldo E. Sala, Arizona State University; Laureano A. Gherardi, Arizona State University; Debra Peters, USDA Agricultural Research Service; A.K. Knapp, Colorado State University; Haitao Huang, New Mexico State University
9:20 AM
Ecological responses to warmer pastures in northern Mongolia
Brenda Casper, University of Pennsylvania; Pierre Liancourt, Institute of Botany; Alain F. Plante, University of Pennsylvania; Brent Helliker, University of Pennsylvania; Lkhagva Ariuntsetseg, National University of Mongolia; Bazartseren Boldgiv, National University of Mongolia; Peter S. Petraitis, University of Pennsylvania
9:40 AM
10:10 AM
How important is CO2 in the responses of a northern mixed-grass prairie to temperature?
Jack A. Morgan, USDA-ARS; Elise Pendall, University of Wyoming; Daniel R. LeCain, USDA-ARS; Yolima Corrillo, University of Wyoming; Feike A. Dijkstra, University of Sydney; Dana Blumenthal, Rangeland Resources Research Unit; David P. Smith, USDA-ARS; David Williams, University of Wyoming
10:30 AM
Climate warming and altered precipitation patterns accelerate change in tree establishment in post oak savanna grasslands
Mark G. Tjoelker, University of Western Sydney; Astrid Volder, University of California -Davis; David D. Briske, Texas A&M University
10:50 AM
11:10 AM
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