Investigation into the environmental factors that drive microbial diversity in the soils of the Meirs Valley mineral soils
Entry ID: K023_2004_2005_NZ_1

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Summary
Abstract: The primary objective of this event was to examine possible environmental factors (moisture, nutrients, mineralogy) driving the microbial diversity in the dry valley soils of Antarctica. 325 mineral soil samples (15-50 mls) were collected from different sites in and around the upper Miers Valley. Sights included a well-defined altitudinal gradient set (150 samples) on the northern flank of the valley from valley floor to summit (482m elevation), 15 seal carcasses from the valley and the associated Northern access to the Marshall Valley (113 samples), different mineral outcrops or unusual site in the valley (37 samples), and hypolithic communities beneath translucent rocks (25 samples). The gradient was set to exploit the greatest moisture gradient in the valley. The seal carcasses represented an obvious introduction of carbon and nitrogen to an otherwise nutrient depleted ecosystem. The hypolithic community, mineral outcrops and otherwise unusual sites were for a general valley image of microbial biodiversity. Successful extraction and genetic analysis of microbial DNA from 90 valley floor mineral soils was accomplished to determine the validity of sample quality prior to returning to New Zealand. Further analysis was conducted in laboratories including phylogenetic diversity analysis, microbial biomass and isolation of DNA for metagenomic studies.

Related URL
Link: VIEW RELATED INFORMATION
Link: VIEW RELATED INFORMATION
Description: The investigators homepage


Parent DIF
This data set description is a member of a collection. The collection is described in
K023_2004_2008_NZ_1


Geographic Coverage
 N: -78.0943 S: -78.0943  E: 163.812  W: 163.812

Temporal Coverage
Start Date: 2005-01-24
Stop Date: 2005-02-05


Location Keywords
CONTINENT > ANTARCTICA
CONTINENT > ANTARCTICA > MIERS VALLEY
GEOGRAPHIC REGION > POLAR


Science Keywords
LAND SURFACE >SOILS >MICRONUTRIENTS/TRACE ELEMENTS    [Definition]
LAND SURFACE >SOILS >MICROFLORA    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >COMMUNITY DYNAMICS >BIODIVERSITY FUNCTIONS    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >COMMUNITY DYNAMICS >COMMUNITY STRUCTURE    [Definition]


ISO Topic Category
BIOTA
ENVIRONMENT
GEOSCIENTIFIC INFORMATION


Platform
FIELD SURVEYS    [Information]
LABORATORY    [Information]


Instrument
SOIL SAMPLER    [Information]


Project
LTER >Long-Term Ecological Research    [Information]
LGP >Latitudinal Gradient Project    [Information]
IPY >INTERNATIONAL POLAR YEAR    [Information]
EBA >Evolution and Biodiversity in the Antarctic    [Information]


Quality
All of the collected samples are stored at the University of Waikato, Hamilton New Zealand in a PC2 containment facility. Various amounts of the samples are held at the University of Western Cape, Cape Town, South Africa. The samples are stored at -80C. The samples were used for DNA analysis and this analysis uses very little material. Therefore, most if not all, of the samples still exist.

Soil samples were collected along a transect in the Miers Valley. 12 stations were samples with three samples and the data along with these samples includes elevation, GPS position, volumetric water content, temperature and relative humidity. Mummified seal samples were also collected and the corresponding data includes seal number, location, GPS details, altitude, photo number, dentition number, length and associated notes. Soil samples for the biodiversity study corresponding data includes sample number, GPS information, the date collected, altitude and a site description. A set of full transect samples and samples of hypoliths are held in South Africa.

Please contact the investigators for more information.


Data Set Progress
IN WORK


Data Center
Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand    [Information]
Data Center URL: http://www.antarcticanz.govt.nz/

Data Center Personnel
Name: SHULAMIT GORDON
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: s.gordon at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand


Personnel
CRAIG CARY
Role: INVESTIGATOR
Phone: +64 7 838 4593
Fax: +64 7 838 4218
Email: caryc at UDel.Edu
Email: c.cary at waikato.ac.nz
Contact Address:
Department of Biological Sciences
University of Waikato
PO BOX 3105
City: Hamilton
Postal Code: 3105
Country: New Zealand


DON COWAN
Role: INVESTIGATOR
Phone: +27 (21) 959 2083
Fax: +27 (21) 959 3505
Email: dcowan at uwc.ac.za
Contact Address:
Department of Biotechnology
University of the Western Cape
Bellville
City: Cape Town
Postal Code: 7535
Country: SOUTH AFRICA


CEISHA POIROT
Role: DIF AUTHOR
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: c.poirot at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand


SHULAMIT GORDON
Role: DIF AUTHOR
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: s.gordon at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand


Publications/References
Cowan, D.A. Ah Tow, L. Smith, J.J. Cary, C. Moodley, K. 2005 Microbial molecular ecology of continental Antarctic biotopes. Antarctica: Global Laboratory for Scientific and International Collaboration. Tan, A., Yasin, Z., Mansor, M.(eds), Kuala Lumpur Academy of Sciences Malaysia

Adams, B.J. Bardgett, R.D. Ayres, E. Wall, D.H. Aislabie, J. Bamforth, S. Bargagli, R. Cary, C. Cavacini, P. Connell, L. Convey, P. Fell, J.W. Frati, F. Hogg, I. Newsham, K.K. O’Donnell, A. Russell, N. Seppelt, R.D. Stevens, M.I. 2006 Diversity and distribution of Victoria Land biota. Soil biology and biochemistry 38(10): 3003-3018 doi:10.1016/j.soilbio.2006.04.030

Barrett, J.E. Virginia, R.A. Wall, D.H. Cary, S.C. Adams, B.J. Hacker, A.L. Aislabie, J.M. 2006 Co-variation in soil biodiversity and biogeochemistry in northern and southern Victoria Land, Antarctica. Antarctic science 18(4): 535-548 doi: 10.1017/S0954102006000587

Hogg, I.D. Cary, S.C. Convey, P. Newsham, K.K. O’Donnell, A.G. Adams, B.J. Aislabie, J. Frati, F. Stevens, M.I. Wall, D.H. 2006 Biotic interactions in Antarctic terrestrial ecosystems: Are they a factor? Soil biology and biochemistry 38(10): 3035-3040 doi:10.1016/j.soilbio.2006.04.026

Smith, J.J. Ah Tow, L. Baker, G. Cary, C. Cowan, D.A. 2006 Bacterial diversity in three different Antarctic cold desert mineral soils. Microbial ecology 51(4): 413-421

Cowan, D.A. Casanueva, A. Stafford, W. 2007 Ecology and biodiversity of cold-adapted organisms. In: Physiology and biochemistry of extremophiles. Gerday, C., Glansdorff, N.(eds), Washington, DC. ASM Press

Cowan, D.A. Casanueva, A. Stafford, W. 2007 Ecology and biodiversity of cold-adapted organisms. In: Physiology and biochemistry of extremophiles. Gerday, C., Glansdorff, N.(eds), Washington, DC. ASM Press

Niederberger, T.D. McDonald, I.R. Hacker, A.L. Soo, R.M. Barrett, J.E. Wall, D.H. Cary, C. 2008 Microbial community composition in soils of Northern Victoria Land, Antarctica Environmental microbiology 10(7): 1713-1624 doi:10.1111/j.1462-2920.2008.01593.x

Wood, S.A. Rueckert, A. Cowan, D.A. Cary, S.C. 2008 Sources of edaphic cyanobacterial diversity in the Dry Valleys of Eastern Antarctica. The ISME journal 2: 308-320 doi:10.1038/ismej.2007.104

"Babalola, O.O., Kirby, B.M., Le Roes-Hill, M., Cook, A.E., Cary, S.C., Burton, S.G. And Cowan, D.A. 2009. Phylogenetic analysis of actinobacterial populations
associated with Antarctic Dry Valley mineral soils. Environmental Microbiology 11(3): 566-576."

Creation and Review Dates
DIF Creation Date: 2009-04-30
Last DIF Revision Date: 2009-07-02

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