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Colonization and Establishment of Missouri Prairie Plants on Artificial Soil Disturbances. II. Detecting Small-Scale Plant-to-Plant Interactions and Separating Disturbance from Resource Provision
Deborah Rabinowitz and Jody K. Rapp
American Journal of Botany
Vol. 72, No. 10 (Oct., 1985), pp. 1629-1634
Published by: Botanical Society of America, Inc.
Stable URL: http://www.jstor.org/stable/2443314
Page Count: 6
You can always find the topics here!Topics: Seedlings, Plants, Soil resources, Prairie soils, Soil disturbance, Mortality, Forbs, Prairies, Sod plugs, Disturbed soils
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We investigated whether seedlings and shoots interacted with one another while colonizing small soil disturbances in a tall-grass prairie in Missouri. Specifically, we tested for density dependence of longevity and whether seedlings responded to the creation of a disturbance and/or the provision of an uncolonized resource. There was little evidence of density-dependent mortality among either seedlings or vegetative shoots. There were essentially no differences in either colonization or mortality of seedlings between disturbances with a new, competition-free resource and disturbances without a new resource. Excluding vegetative invaders from a site by means of a polyvinylchloride pipe did not prompt a greater number of seedlings to arise or survive. These results substantiated a noninteractive portrayal of colonization. Individuals of seedlings and shoots appeared and disappeared in a fashion largely independent of one another.
American Journal of Botany © 1985 Botanical Society of America, Inc.