2022 ESA Annual Meeting (August 14 - 19)

OOS 33 A change is already here: Implications of intensifying drought for terrestrial ecosystems

3:30 PM-5:00 PM
520C
Organizer:
Melinda D. Smith
Co-Organizer:
Osvaldo E. Sala, Kate D. Wilkins
Moderator:
Jeffrey S. Dukes
Global climate change is increasing the frequency, magnitude and duration of droughts. Indeed, this intensification of drought events is already being experienced in many regions of the globe. Droughts that are of greater extremity and duration are expected to have large and long-lasting ecological and societal impacts, with these effects only expected to be further compounded as such drought events occurring more frequently. Despite the expected dire consequences of intensified drought, scientists are just beginning to accumulate the knowledge needed to develop a predictive understanding of the ecological consequences of more extreme, longer duration, and more frequent droughts in space and time. For this organized oral session, we bring together speakers that will present results from experiments and simulation modeling that encompass multiple sites and years to understand the ecological impacts of intensified drought. The major outcome of the session will be to synthesize how intensifying drought is affecting ecological systems in space and time and identification of future research priorities.
3:30 PM
Multiyear drought effects on North American warm deserts
Timothy J. Ohlert, University of New Mexico;Timothy J. Ohlert, University of New Mexico;Alesia Hallmark, University of New Mexico;Mariah T. Patton, University of New Mexico;Gregor Hamilton, Department of Biology, University of New Mexico;Scott L. Collins, University of New Mexico;
3:45 PM
Primary production responses to extreme changes in North American Monsoon precipitation move up an elevation gradient through time
Seth M. Munson, Ph.D, US Geological Survey;Seth M. Munson, Ph.D, US Geological Survey;John B. Bradford, US Geological Survey, Southwest Biological Science Center;Bradley J. Butterfield, Ph.D., Northern Arizona University;Jennifer R. Gremer, University of California, Davis;
4:00 PM
Drought responses of forage supply increased with increasing aridity in South American rangelands
Laura Yahdjian, University of Buenos Aires, Facultad de Agronomia. IFEVA-CONICET;Viviana Bondaruk, University of Buenos Aires, Facultad de Agronomia. IFEVA-CONICET;Gaston R. Oñatibia, University of Buenos Aires, Facultad de Agronomia. IFEVA-CONICET;Roberto Fernandez, University of Buenos Aires, Facultad de Agronomia. IFEVA-CONICET;
4:15 PM
Impacts of intensified drought across space and time: Results from the International Drought Experiment
Kate D. Wilkins, Colorado State University;Melinda D. Smith, Colorado State University;Martin Holdrege, USGS Southwest Biological Science Center;Peter A. Wilfahrt, University of Minnesota;Laureano A. Gherardi, University of California, Berkeley;Timothy J. Ohlert, University of New Mexico;Scott L. Collins, University of New Mexico;Jeffrey S. Dukes, Department of Global Ecology, Carnegie Institution for Science;Alan K. Knapp, Colorado State University;Richard P. Phillips, Ph.D., Indiana University;Osvaldo E. Sala, Arizona State University;Anna Tatarko, University of Nevada, Reno;Andrew Felton, Chapman University;International Drought Experiment Network (IDE), NA;
4:30 PM
Improving model prediction of ecosystem responses to extreme drought events
Yiqi Luo, Northern Arizona University;Yu Zhou, Northern Arizona University;
4:45 PM
A seasonal signature of drought impacts across US grasslands
Andrew Felton, Chapman University;Gregory Goldsmith, Schmid College of Science and Technology, Chapman University;