Mount St. Helens Vegetation Succession

  • Creator(s): Roger del Moral
  • PI(s): Roger del Moral
  • Originator(s): Roger del Moral
  • Other researcher(s):
  • Dates of data preparation: Aug 18 1987 - Nov 1 2005
  • Data collection status: Study continues and further data collection is planned
  • Data access: Online
  • Access constraint: Contact senior personnel when data is accessed for use.
  • Last update: Mar 14 2006 (Version 1)
<Citation>     <Acknowledgement>     <Disclaimer>    
del Moral, R. 2006. Mount St. Helens Vegetation Succession. Mount St. Helens. Forest Science Data Bank, Corvallis, OR. [Database]. Available: Accessed 2024-06-15.
Data sets were provided by the Forest Science Data Bank, a partnership between the Department of Forest Science, Oregon State University, and the U.S. Forest Service Pacific Northwest Research Station, Corvallis, Oregon.
While substantial efforts are made to ensure the accuracy of data and documentation, complete accuracy of data sets cannot be guaranteed. All data are made available "as is". The FSDB shall not be liable for damages resulting from any use or misinterpretation of data sets.

The data in this database describe the grid plots collected on Mount St. These plots permit monitoring of the development of vegetation and spatial expansion in a detailed way. Data were obtained in 100 m2 plots arranged in a contiguous grid. Data include species composition, richness, index of cover (a logarithmic scale), frequency of each index type and diversity. The metadata include a conversion scale between index score and percent cover. Summaries are found at:

The data from these plots have formed the basis of several papers. Citations are available at:

Study Description Taxonomic Hierarchy Download Study Location Information: (CSV)
Ecological Metadata Language: (EML)
1Species Index Score Per Plot (Aug 18 1987 - Sep 1 2005)METADATADATA
2Plot Richness per plot (Aug 18 1987 - Sep 1 2005)METADATADATA
3Species List and Conversion Factors (Aug 18 1987 - Sep 1 2005)METADATADATA