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The Acrasieae in Nature. II. Forest Soil as a Primary Habitat
James C. Cavender and Kenneth B. Raper
American Journal of Botany
Vol. 52, No. 3 (Mar., 1965), pp. 297-302
Published by: Botanical Society of America, Inc.
Stable URL: http://www.jstor.org/stable/2439944
Page Count: 6
You can always find the topics here!Topics: Forest soils, Deciduous forests, Species, Humus, Prairie soils, Dry forests, Soil fungi, Prairies, Mold, Soil samples
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Although the Acrasieae are widely distributed in nature, they are most numerous and of the greatest variety in forest soils. Those species isolated from deciduous forest soils of Eastern and Midwestern United States belong to 2 families, the Dictyosteliaceae and Acytosteliaceae. Preference of the Acrasieae for forest soils over those of grassland was demonstrated by sampling a vegetational succession from prairie to forest. Occurrence of these slime molds within the forest soil profile is largely confined to the surface of the humus layer and the fermenting leaf litter. The Acrasieae are more numerous in forest soils in the autumn and spring than at other seasons. The frequency of occurrence of species varies considerably along the forest continuum of southern Wisconsin, indicating a differential response to microenvironments as influenced by the higher vegetation.
American Journal of Botany © 1965 Botanical Society of America, Inc.