Publication Title: Plant succession in areas of scorched and blown-down forest after the 1980 eruption of Mount St. Helens, Washington
Year: 1990 Status: Published Publication Type: Journal Article
H. J. Andrews Publication Number: 1015
Citation: Halpern, Charles B.; Frenzen, Peter M.; Means, Joseph E.; Franklin, Jerry F. 1990. Plant succession in areas of scorched and blown-down forest after the 1980 eruption of Mount St. Helens, Washington. Journal of Vegetation Science. 1: 181-194.
Online PDF: http://andrewsforest.oregonstate.edu/pubs/pdf/pub1015.pdf
Abstract: Patterns of plant succession were studied in areas of scorched and blown-downforest resulting from the 1980 eruption of Mount St. Helens, Washington. Changes inplant abundance were observed for a 7 yr period in permanent sample plotsrepresenting four types of post-disturbance habitats, or site types. A largeproportion of the post-eruption vegetation derived from plants that persisted throughdisturbance. Survival and subsequent recovery of understory species were greatest inforests that supported a snowpack at the time of eruption. Gradually, however,species composition on previously forested plots converged toward that of formerlyclearcut sites, due to widespread recruitment and clonal expansion of early seralforks. Keywords: Detrended correspondence analysis, Life-form development, Plantrecovery, Species diversity, Tephra, Volcanic disturbance.
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