Trees Survive Windstorms in Upland Hardwood Forest

In 1995, Hurricane Opal toppled trees throughout the South, including parts of the southern Appalachians. Wind is a common canopy disturbance in upland oak-hickory forests, but little has been reported on naturally formed large gaps of more than six trees where a partial canopy remains. With Erik Berg, SRS researchers Stanley Zarnoch and Henry McNab…  More 

Crash and Burn: How Tornado Damage Affects Fire Behavior

Tornadoes and fires are powerful natural disturbances that can kill trees and cause long lasting changes in community composition. “However, most disturbances are neither rare nor catastrophic,” says U.S. Forest Service scientist Joseph O’Brien. “There is a continuum of disturbance severity in most ecosystems, although the interactions among these disturbances haven’t received much study.” One…  More