Initial effects of ashfall from Mount St. Helens on vegetation in eastern Washington and adjacent Idaho
Mack RN. 1981. Initial effects of ashfall from Mount St. Helens on vegetation in eastern Washington and adjacent Idaho. Science. 213(4507):537-539
Extensive plant damage from teh 18 May 1980 eruption of Mount St. Helens was largely restricted to acaulescent and prostrate dicot species in the ashfall area east of the Cascade Range (more than 150 kilometers from the vent). Veratrum californicum, a large monocot, displayed widespread stem death through mechanical overloading of the plant's clasping leaves. The ash surface in this area presents new opportunities for both seeds and seed predators.
- Type
- Journal Article
- Authors
- Mack, Richard
- Units
- NOCA
- Keywords
- Angiosperms, ash falls, catastrophes, Ecology, Environmental Geology, Geologic Hazards, Geology, Idaho, Mount Saint Helens, Vegetation, Volcanoes, Volcanology, Washington