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Dive into the research topics where Emanuel D. Rudolph is active.

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Featured researches published by Emanuel D. Rudolph.


Mycologia | 1974

The Role of Lichens and Associated Fungi in the Chemical Weathering of Rock

Michael Williams; Emanuel D. Rudolph

Using iron chelation as a measure of biochemical weathering, and employing a spectrometric technique to measure the chelation, the authors studied rock lichens and fungi isolated from the same rock surfaces. The isolated symbionts (mycobionts and phycobionts) of four species of lichens showed no chelation ability after growth on synthetic media. Squamatic acid extracted from the lichen Cladonia squamosa chelated iron in solution. Many of the fungi isolated from the same sandstone, particularly species of Penicillium and Cephalosporium, were able to chelate iron in solution from twice to as much as six times that of the squamatic acid, as was true for citrate. Lichens that produce lichen acids and rock-surface fungi may be significant biochemical weathering agents in nature.


Biological Conservation | 1970

Conserving the Antarctic terrestrial ecosystem

Emanuel D. Rudolph

Abstract With increased world interest in conservation and environmental protection, it is especially proper that the only continent set aside for international scientific investigation, Antarctica, should be a model for conservation practices. The Antarctic ecosystems, because they mostly survive under extreme environmental conditions, are very fragile, being easily disturbed without our knowing how long regeneration may take. Fortunately there are good conservation regulations in the Antarctic Treaty, and these are being strengthened by periodic recommendations of the Working Group on Biology of SCAR. Scientists and others who visit Antarctica must take responsibility for implementing these recommendations.


Mycologia | 1980

Cellular interactions in symbiosis and parasitism

Biosciences Colloquium; Clayton B. Cook; Peter W. Pappas; Emanuel D. Rudolph


Ecology | 1963

Vegetation on Hallett Station Area, Victoria Land, Antarctica

Emanuel D. Rudolph


Antarctic Soils and Soil Forming Processes | 2013

Terrestrial Vegetation of Antarctica: Past and Present Studies1

Emanuel D. Rudolph


Ohio J. Sci.; (United States) | 1975

Lichen Accumulation of Some Heavy Metals from Acidic Surface Substrates of Coal Mine Ecosystems in Southeastern Ohio

James D. Lawrey; Emanuel D. Rudolph


Mycologia | 1966

Electron microscope studies of lichen reproductive structures in Physcia aipolia.

Emanuel D. Rudolph; Robert Marshall Giesy


Journal of Mammalogy | 1968

Inland Record of a Live Crabeater Seal in Antarctica

Ian Stirling; Emanuel D. Rudolph


Mycologia | 1990

Carroll William Dodge, 1895–1988

Emanuel D. Rudolph


Journal of the History of Biology | 1990

Isaac Sprague, “delineator and naturalist”

Emanuel D. Rudolph

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