Mount St. Helens We are pursuing several studies on Mount St. Helens: (Note: All links are PDF files.) Monitoring of permanent plots, permanent grids and Studebaker Ridge. Measurement of composition in lupine patches to compare lupine impacts to open sites. Studies of the relationships of potholes (small depressions) to their local environment and their impacts on the immediate surroundings. Impacts of relict vegetation and other oases. An "oasis" is any site that sustains vegetation significantly denser and better developed than the surroundings. Other studies involve potholes as oases, and wetlands. Measurements of the effects of woody plants on understory species on lahars. Studies of heterogeneity as a function of distance from sources of colonizing species. General Survey: Vegatation Patterns 25 Years After the Eruption Lahar Survey: The search for assemble rules Other Activities 2009 Muddy Survey Proof.pdf More Activities Dead Elk Movie, courtesy of, and narrated by, Tara Fletcher