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Preliminary investigation of the thermal biosystem of Mount Rittmann fumaroles (northern Victoria Land, Antarctica)

Published online by Cambridge University Press:  12 May 2004

R. Bargagli ,
P.A. Broady  and
D.W.H. Walton
R. Bargagli
Affiliation:
Department of Environmental Biology, University of Siena, Via delle Cerchia 3, 53100 Siena, Italy
P.A. Broady
Affiliation:
Department of Plant and Microbial Sciences, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
D.W.H. Walton
Affiliation:
British Antarctic Survey, Natural Environmental Research Council, High Cross, Madingley Road, Cambridge CB3 OET, UK
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Abstract

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The biota and environment of fumarolic ground recently discovered near Mount Rittmann are described. Three patches (about 1 m2 each) of the moss Pohlia nutans were found in a minor caldera rim. Cyanophytes, chlorophytes, protozoa and bacteria were isolated from the moss and warm ground (30–50°C). The results are compared with those of previous studies on Antarctic volcanoes. The origin of the geothermal flora is discussed in terms of long-distance transport of propagules to the continent.

Keywords

colonizationcontinental Antarcticageothermal groundphysico-chemical properties
Type
Papers—Life Sciences and Oceanography
Information
Antarctic Science , Volume 8 , Issue 2 , June 1996 , pp. 121 - 126
Copyright
© Antarctic Science Ltd 1996