Skip to main content
Then and Now: Vegetative Change Detection on Mount St. Helens 2000-2015
Student Research Symposium
  • Douglas S. Thalacker, Portland State University
  • Andrés Holz, Portland State University
Portland State University
Start Date
4-5-2016 12:00 PM
End Date
4-5-2016 2:00 PM
  • Mount Saint Helens (Wash.),
  • Vegetation dynamics -- Washington (State) -- Mount Saint Helens,
  • Plant communities -- Washington (State) -- Mount Saint Helens
The 1980 eruption of Mount St. Helens (MSH) proved a dramatic event with many important socio-economic consequences. In addition, this eruption resulted in an array of ecological consequences with subsequent studies and profound theoretical ramifications. The eruption created a complex gradient in disturbance severity on the northern aspect of MSH3, promoting successional processes from varying starting points and change rates. This study uses a landscape-scale approach to quantify spatio-temporal trends in vegetative responses to the eruption from 2000-2015, relying on Landsat TM and ETM+ imagery focusing on the primary and (i.e. no biological legacies) secondary (i.e. with biological legacies) succession zones that were studied 15 years ago.
Persistent Identifier
Citation Information
Douglas S. Thalacker and Andrés Holz. "Then and Now: Vegetative Change Detection on Mount St. Helens 2000-2015" (2016)
Available at: