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Examination of the photosynthetic behaviour (energy content, nutrient content, productivity and acclimation) of mosses and lichens throughout the summer season at Cape Hallett
Entry ID: K024_2004_2006_NZ_2


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Summary
Abstract: A possible sign of climate change is likely to be improved production and growth in plants. The response of net photosynthetic rates were measured on the large areas of relatively uniform moss cover at Cape Hallet through the summer season to get an estimate of the energy content, nutrient content, productivity and acclimation of mosses and lichens. The results are the first step to a full description of energy flow in the ecosystem. The photosynthetic behaviour of two moss species Bryum subrotundifolium and Bryum pseudotriqueterum was completed. Net photosynthesis responses to plant water content and to light were first constructed in order to optimise the experimental conditions. Sets of net photosynthesis response to light were then constructed through the season at a constant temperature of 12 degrees. Mosses were given different additions of fertiliser (macro-nutrients, micronutrients or no treatment) and sampled the following season in order to detect any nutrient limitation. An additional set of trials was carried out on Prasiola (alga) and optimal temperatures for photosynthesis of B. subrotundifolium were determined.

Related URL
Link: GET DATA
Link: GET DATA
Description: Australian Antarctic Division Herbarium


Link: VIEW RELATED INFORMATION
Description: The investigator's homepage


Geographic Coverage
 N: -72.3167 S: -72.3167  E: 170.2667  W: 170.2667

Temporal Coverage
Start Date: 2004-11-11
Stop Date: 2004-12-07

Start Date: 2005-11-25
Stop Date: 2005-12-14


Location Keywords
CONTINENT > ANTARCTICA
CONTINENT > ANTARCTICA > CAPE HALLETT
GEOGRAPHIC REGION > POLAR


Science Keywords
BIOSPHERE >VEGETATION >VEGETATION SPECIES    [Definition]
BIOLOGICAL CLASSIFICATION >PLANTS >MOSSES/HORNWORTS/LIVERWORTS    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >COMMUNITY DYNAMICS >BIODIVERSITY FUNCTIONS    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >ECOSYSTEM FUNCTIONS >PHOTOSYNTHESIS    [Definition]


ISO Topic Category
BIOTA


Platform
FIELD SURVEYS    [Information]
FIELD INVESTIGATION    [Information]


Project
LGP >Latitudinal Gradient Project    [Information]
EBA >Evolution and Biodiversity in the Antarctic    [Information]


Quality
All data is held by the investigators. Please contact for more information.

The plant collections (~30,000 mosses, liverwort and lichens collected by Professor Rod Seppelt from Antarctica and sub-Antarctic Islands) are housed in the Australian Antarctic Division herbarium. This herbarium is being formerly transferred to the Tasmanian Herbarium. As specimens are fully incorporated into the herbarium (ADT) the data is automatically sent to and held in the Antarctic Database at the Australian Antarctic Division Data Centre. The data is currently in two separate databases, one which searchable and the other is in the process of being moved over.

For more information or access to samples, please contact:

Professor Rod Seppelt
Principal Research Scientist
Australian Antarctic Division
Channel highway
Kingston 7050
Tasmania, Australia
ph: +61 (03) 6232 3438
fax: +61 (03) 6232 3449
e-mail: rod.seppelt@aad.gov.au


Keywords
GROUND-BASED MEASUREMENTS


Data Set Progress
COMPLETE


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
T G ALLAN GREEN
Role: INVESTIGATOR
Phone: +64 7 838 4225
Fax: +64 7 838 4324
Email: greentga at waikato.ac.nz
Contact Address:
Department of Biological Sciences
University of Waikato
PO Box 3105
City: Hamilton
Country: NEW ZEALAND


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



Creation and Review Dates
DIF Creation Date: 2009-04-23
Last DIF Revision Date: 2009-06-19


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