Titlebook: Biological Soil Crusts: Structure, Function, and Management; Jayne Belnap,Otto L. Lange Book 2003 Springer-Verlag Berlin Heidelberg 2003 A

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Soil Fungi as Components of Biological Soil Crusts abundant and highly diverse microorganisms. Our report includes the results of an examination of the vertical profile of some typical biological crusts, and the soils beneath them, in search of a fungal community composition indicative of an ecological specificity for the crust environment.

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J. W. M. van Goethem,F.-A. Stichnothimatic and edaphic conditions of large areas seem to be well suited for the development of a rich terrestrial cryptogamic vegetation. However, only a few reports are available dealing with the presence, composition, and ecology of biological soil crusts in the different biomes of South America.

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,Nichtendokrine hypothalamische St?rungen,e gradients (.). Even at a very small scale of 1 m or 1 cm, patchiness in the distribution of organisms can be considerable (.). This chapter is devoted to those variations in environmental variables occurring at spatial scales of millimeters to meters.

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Biological Soil Crusts of South Americaimatic and edaphic conditions of large areas seem to be well suited for the development of a rich terrestrial cryptogamic vegetation. However, only a few reports are available dealing with the presence, composition, and ecology of biological soil crusts in the different biomes of South America.

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