Ecological constraints to seedling establishment on the Pumice Plains, Mount St Helens, Washington

Journal Article (Journal Article)

For both Epilobium angustifolium and Anaphalis margaritacea, the dominant species in primary succession on the Pumice Plains, density of the seed rain far exceeds the density of colonists. A. margaritacea established under a wider range of conditions than did E. augustifolium. Colonization by these species, and hence rate of primary succession, is limited by availability of safe sites for germination and establishment and not by seed dispersal. Safe sites are defined primarily by the level of subsurface moisture and secondarily by microtopography and seed size, and have a greater effect on seedling emergence than on seedling survival. -from Authors

Full Text

Duke Authors

Cited Authors

  • Wood, DM; Morris, WF

Published Date

  • January 1, 1990

Published In

Volume / Issue

  • 77 / 11

Start / End Page

  • 1411 - 1418

International Standard Serial Number (ISSN)

  • 0002-9122

Digital Object Identifier (DOI)

  • 10.2307/2444751

Citation Source

  • Scopus