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The cryptoendolithic microbial environment in the Ross Desert of Antarctica: mathematical models of the thermal regimeMicrobial activity in the Antarctic cryptoendolithic habitat is regulated primarily by temperature. Previous field studies have provided some information on the thermal regime in this habitat, but this type of information is limited by the remoteness of the site and the harsh climatic conditions. Therefore, a mathematical model of the endolithic thermal regime was constructed to augment the field data. This model enabled the parameters affecting the horizontal and altitudinal distribution of the community to be examined. The model predicts that colonization should be possible on surfaces with zenith angle less than 15 degrees. At greater zenith angles, colonization should be restricted to surfaces with azimuth angles less than 135 degrees or greater than 225 degrees. The upper elevational limit of the community should be less than 2,500 m. The thermal regime probably does not influence the zonation of the community within a rock.
Document ID
20040090086
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Nienow, J. A.
(Florida State University Tallahassee 32306-2043, United States)
McKay, C. P.
Friedmann, E. I.
Date Acquired
August 21, 2013
Publication Date
January 1, 1988
Publication Information
Publication: Microbial ecology
Volume: 16
ISSN: 0095-3628
Subject Category
Exobiology
Funding Number(s)
CONTRACT_GRANT: NSG 7337
CONTRACT_GRANT: DPP 80-17581
CONTRACT_GRANT: DPP 83-14180
Distribution Limits
Public
Copyright
Other
Keywords
Non-NASA Center
NASA Discipline Exobiology
NASA Program Exobiology
NASA Center ARC
NASA Discipline Number 52-30

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