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Population genetics of the lichen species Umbilicaria aprina, Umbilicaria decussata and Buellia frigida along a latitudinal gradient in the Ross Sea region
Entry ID: K024_2006_2008_NZ_1


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Summary
Abstract: A latitudinal change in population genetics of selected lichen species was conducted to determine whether these lichen communities have spread along a latitudinal gradient from northern latitudes during the reasonably recent time period of the modern ice sheet or are relics from refugia, such as nunatuks, which have existed since the time of Gondwanaland. Samples of Umbilicaria aprina, Umbilicaria decussata and Buellia frigidawere collected from Igloo Spur at Cape Crozier, Mt Falconer in the Taylor Valley, Linnaeus Terrace in the Asgard Range, the Nussbaumriegel in the Taylor Valley, Gondwana and Granite Harbour for analysis in the lab to be able to compare the origin of dispersal and choice of algal partner over a wide latitudinal gradient. Several samples were retained on rock surfaces for identification purposes and as herbarium voucher specimen. Fluorescence analyses were conducted to ascertain photosynthetic activity over time as well as under different light conditions. The genetic relationship between populations and the determination of photobiont specificity in lichens was determined.

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


Geographic Coverage
 N: -77.6286 S: -77.6286  E: 163.1  W: 163.1
 N: -77.6667 S: -77.6667  E: 162.7667  W: 162.7667
 N: -77.6 S: -77.6  E: 161.08333  W: 161.08333
 N: -77.55 S: -77.55  E: 169.26666  W: 169.26666
 N: -76.88333 S: -76.88333  E: 162.73334  W: 162.73334
 N: -74.635414 S: -74.635414  E: 164.22162  W: 164.22162
 N: -74.76762 S: -74.76762  E: 164.02373  W: 164.02373
 N: -77.82543 S: -77.82543  E: 166.64215  W: 166.64215

Temporal Coverage
Start Date: 2007-01-10
Stop Date: 2007-01-20

Start Date: 2007-11-13
Stop Date: 2007-12-14


Location Keywords
CONTINENT > ANTARCTICA
CONTINENT > ANTARCTICA > CAPE CROZIER
CONTINENT > ANTARCTICA > GRANITE HARBOUR
CONTINENT > ANTARCTICA > GONDWANA STATION
CONTINENT > ANTARCTICA > TAYLOR VALLEY
CONTINENT > ANTARCTICA > ASGARD RANGE
GEOGRAPHIC REGION > POLAR


Science Keywords
BIOLOGICAL CLASSIFICATION >FUNGI >LICHENS    [Definition]


ISO Topic Category
BIOTA


Platform
FIELD SURVEYS    [Information]
LABORATORY    [Information]


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


Quality
The study was conducted to meet the requirements for a PhD degree. All data is held in the thesis and held by the investigator. Please contact for more information.


Data Set Progress
COMPLETE


Originating Center


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


TRACEY JONES
Role: INVESTIGATOR


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: 2009-04-23


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