David Breshears

David Breshears

UA Regents Professor

Wednesday, May 27,

2:30-3:30 pm,

a Zoom Webinar*

Note: The ASA Building is currently closed.

As several recent ASA lecturers have pointed out, forests are essential to helping keep our planet cool, both by providing shade and sequestering carbon.  As forests are cut down or killed in other ways, they are increasingly less able to perform their cooling function.

Drought die-off

Forests are experiencing die-off events during drought at places all around the world.  As things get warmer in our world, what does the future look like for forests? University of Arizona researcher Dave Breshears has been investigating the frequency of large-scale tree die-offs in connection with drought and climate change. His work at Biosphere 2 and around the world is highlighting how warmer conditions are likely to greatly increase tree die-off events.  This will also affect what comes back after a forest die-off event.  From Arizona to Perth Australia, hotter drought is leaving its footprint on forests.

David D. Breshears is a Professor of Natural Resources in the School of Natural Resources and the Environment at the University of Arizona; he also has a joint affiliation in the Department of Ecology and Evolutionary Biology.  His research focuses on the ecohydrology of dryland ecosystems, vegetation gradients spanning grassland to forest, wind-and water-driven sediment transport and erosion, and particularly on drought-induced tree mortality and climate change. He received the BS degree from New Mexico State University, Las Cruces, in 1985, and the MS and PhD degrees from Colorado State University, Fort Collins, in 1987 and 1993, specializing in Radioecology in the Program in Ecological Studies. He has been a contributor to National Climate Assessment reports from the U.S. Global Change Research Program.

Written by Suzanne Ferguson, Academy Village Volunteer

*For directions to connect to this free Zoom Webinar, please e-mail info@arizonasenioracademy.org, giving your name, e-mail address, and the name and date of the program.

May 27: “Forest Die-offs and Climate Change”