| 87 Titles Match Your Query |
Showing 1 through 50 of 87
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1.
MODIS/Aqua Gross Primary Productivity 8-Day L4 Global 1km SIN Grid [MYD17A2]
The MODerate-resolution Imaging Spectroradiometer (MODIS) Gross Primary Productivity (GPP) product (MYD17A2) is a cumulative composite of GPP values based on the radiation use efficiency concept that ...
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2.
Climate change and carbon gain in Antarctic mosses - Drying Responses [AAS_2780_dryingresponse]
PARENT DIF
We compared the drying responses of clumps of moss from Casey Station, Antarctica, evaluating the changes in mass, water content, photosynthesis (measured by chlorophyll fluorescence), cellular solute ...
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3.
Latitudinal Gradient Project - Australian contributions [LGP]
This record relates to the Australian component of the Latitudinal Gradient Project. The LGP is largely a New Zealand, US and Italian venture, but a small contribution has been made by Australian ...
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4.
Community composition survey at Terra Nova Bay with similar samples collected at Cape Evans Cape Armitage and Turtle Rock [K043_2008_2012_NZ_5]
Five ice cores were collected from Terra Nova bay in the vicinity of Gondwana station. From each core the top, middle and bottom sections were sectioned and processed as described earlier. In addition, ...
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5.
plant and animal propagules inadvertently carried into the Antarctic [FATE]
Data were collected on three sites, see under Purpose.
For Falklands Islands there are observations and countings of species, and data on soil respiration (2004, 2005).
For all three sites climate ...
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6.
Antarctic Coastal Ecology [ACE]
Objectives:
? To assess the structure and functioning of the Antarctic coastal ecosystem and the relationships between marine and terrestrial biota.
? To assess the origin of organic ...
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7.
Photokinetic adaptation of sea-ice algae [ASAC_2702]
Metadata record for data from ASAC Project 2702
See the link below for public details on this project.
Sea-ice algae are the basis of the Antarctic food web and are essential for healthy functioning ...
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8.
Photosynthetic rates of Antarctic sea-ice algae [ASAC_854]
From the abstract of one of the papers:
Oxygen microelectrodes were used to measure the photosynthetic rates of Antarctic fast ice algal mats. Using the oxygen flux across the diffusive boundary ...
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9.
Macroalgal responses to heavy metals and varying light levels at Casey Station [ASAC_2201_Runcie]
PARENT DIF
1. In situ chlorophyll fluorescence measurements using pulse amplitude technique (PAM) of macroalga Desmarestia menziesii, assessing adaptation to high light exposure after sea ice breakout, and impact ...
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10.
Moss beds at Casey: detailed map of experimental sites [ASAC_1313_Casey_Moss_Map_2003]
PARENT DIF
The data are comprised of a spreadsheet with locations (latitude and longitude) and labels for moss bed quadrats. The quadrats are located in two sites: Antarctic Specially Protected Area 135 (formerly ...
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11.
The biomass, productivity and biodiversity of algae and bacteria in Granite Harbour and the physical parameters of their environment [K043_2008_2009_NZ_2]
The total biomass, productivity and biodiversity of algae and bacteria from the sea ice and the water column was investigated in Granite Harbour. Sampling sites in the Granite Harbour area were used ...
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12.
The biomass, productivity, physiology and grazing pressures of phytoplankton during the polar winter in the Ross Sea region [K043_2007_2008_NZ_1]
What happens to primary production during the long polar night was investigated in the Ross Sea region. Phytoplankton samples were obtained from the water column at Cape Armitage and Cape Evans. Phytoplankton ...
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13.
The response of sea ice and brine water algae and bacteria to changes in salinity, temperature, light and UVB in Granite Harbour [K043_2008_2009_NZ_3]
In the 2008/2009 season, samples of the bottom ice algae and brine algae (within 30cm of the top of the ice) were subjected to temperature, salinity, light and UVB experiments and analysed with PAM ...
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14.
Photosynthesis of subantarctic plants as affected by leaf and canopy temperature variation [ASAC_2544]
Metadata record for data from ASAC Project 2544
See the link below for public details on this project.
Public Summary
Recent global warming is evident for many subantarctic islands. Rising temperatures ...
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15.
Microbial mat development and production variation in relation to physio-chemical variation in 13 ponds that all originated from one greater pond near Bratina Island on the McMurdo Ice Shelf [K081_2005_2006_NZ_1]
Microbial mat development and production varies from pond to pond due to the physio-chemical variation amongst the ponds. To study this variation a series of 13 ponds were selected that had originated ...
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16.
Biology of Antarctic Algae [ASAC_102]
Metadata record for data from ASAC Project 102
See the link below for public details on this project.
From the abstracts of some of the referenced papers:
Six species ...
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17.
Effects of Elevated UV Irradiation and CO2 Levels on Antarctic and Subantarctic Plants, Including Implications for Ecosystem Management [ASAC_115]
Metadata record for data from ASAC Project 115
See the link below for public details on this project.
From the abstract of the referenced paper:
Umbilicaria decussata, ...
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18.
Photosynthetic Attributes of Antarctic Plants [ASAC_244]
Metadata record for data from ASAC Project 244 See the
link below for public details on this project.
From the abstracts of the referenced papers:
Photoinhibition of Grimmia antarctici (Grimmia ...
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19.
Photosynthetic Response of Antarctic and Subantarctic Plants to Light and UV Stress in Undisturbed/Disturbed Habitats [ASAC_227]
Metadata record for data from ASAC Project 227
Photosynthetic Response of Antarctic and Subantarctic Plants to Light and UV Stress in Undisturbed/Disturbed Habitats including Recommendation ...
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20.
Impacts of climate change on Antarctic vascular plants: warming and UV-B radiation [TAD001]
Our research examined the influence of ultraviolet-B radiation
(UV-B) and warming on the performance of Antarctic flowering plants
(i.e. Deschampsia antarctica, ...
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21.
Impact of changes in UV and visible radiation on the reflective properties of plant photosynthetic surfaces [ASAC_941]
We investigated how surface reflectance properties and pigment concentrations of Antarctic moss varied over species, sites, icrotopography, and with water content. We found that species had significantly ...
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22.
The bacterial biomass of sea ice from Seabees Hook, Cape Hallett region [K043_2003_2005_NZ_2]
A taxonomic assessment of sea ice bacteria abundance and their response to climate induced stress was investigated from the sea ice around Seabee Hook, Cape Hallett. Four sites at different points ...
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23.
The biomass, productivity and biodiversity of algae and bacteria in Terra Nova Bay and the physical parameters of their environment [K043_2006_2008_NZ_1]
The total biomass, productivity and biodiversity of algae and bacteria from the sea ice and the water column was investigated in Terra Nova Bay. Sampling sites in the Terra Nova Bay area were used ...
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24.
The response of sea ice and brine water algae and bacteria to changes in salinity, temperature, light and UVB in Terra Nova Bay [K043_2006_2008_NZ_4]
Samples of the bottom ice algae and brine algae (within 30cm of the top of the ice) were subjected to temperature, salinity, light and UVB experiments and analysed with PAM rapid light curves to determine ...
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25.
Community composition survey at Terra Nova Bay with similar samples collected at Cape Evans and Cape Armitage [K043_2008_2009_NZ_5]
Five ice cores were collected from Terra Nova bay in the vicinity of Gondwana station. From each core the top, middle and bottom sections were sectioned and processed as described earlier. In addition, ...
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26.
Analysis of the effects of environmental factors (temperature, light, water content and CO2 concentration) on the photosynthesis activity of two common Antarctic mosses and a cyanobacterial mat in the Taylor Valley [K024_2002_2003_NZ_2]
A detailed study of how the environmental factors temperature, light, water content and carbon dioxide concentration affected photosynthesis of the two common mosses Bryum argenteum and Hennediella ...
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27.
Analysis of the endolithic communities in the McMurdo Dry Valleys: microclimate, biodiversity, community structure, biomass, photosynthetic activity and genetic diversity [K024_2003_2008_NZ_1]
The photosynthetic activity of endolithic communities at three sites in the Ross Sea Region, including Mt Falconer in the Taylor Valley, Linnaeus Terrace in the Asgard Range, the Nussbaumriegel in ...
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28.
Comparison of the photosynthetic performance of Umbilicaria species in the Ross Sea region [K024_2002_2003_NZ_3]
The photosynthetic performance of Umbilicaria species was measured under standard conditions in the laboratory and compared with Umbilicaria species from the Taylor Valley and Mt Kyffin.
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29.
Examination of the photosynthetic behaviour (energy content, nutrient content, productivity and acclimation) of mosses and lichens throughout the summer season at Cape Hallett [K024_2004_2006_NZ_2]
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 ...
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30.
Experimental measurements of the effects of the environmental factors (temperature, light, water content and carbon dioxide concentration) on the photosynthesis activity of Antarctic mosses and lichens at Cape Hallett [K024_1998_1999_NZ_2]
A detailed study of how the environmental factors temperature, light, water content and carbon dioxide concentration affected photosynthesis of the two common mosses Bryum argenteum and B. pseudotriquetrum ...
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31.
Adaptive strategies of lichen species to cold environments: Antarctica and the Mediterranean high mountains. [CNDA-ESP_ANT94-0905_LIQ_05]
PARENT DIF
In English:
At the beginning of the 1990's our ecophysiological research on Antarctic
lichens was focussed on adaptations to cope with low temperatures. We assumed
that low ...
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32.
Biology of lichen communities in Antarctica. [CNDA-ESP_LIQ_PAD]
CHILD DIFs
In English:
This dataset contains information on the registered data on studies of the
biology of lichen communities in Antarctica. This dataset is also the parent
record ...
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33.
Measurements of climate data and the effect of high light and low temperature on the photosynthetic response (photosynthetic gas exchange rates and fluorescence) of mosses and lichens at Granite Harbour [K024_1994_1995_NZ_1]
The winter snowfall (during 1994) was unusually large and the area of Botany Bay was uniformly covered to a depth of 50 to 70cm. Furthermore, air temperatures were low being rarely above -6? C. These ...
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34.
Photosynthesis and water relationships on Antarctic nanofruticose lichens. [CNDA-ESP_ANT94-0907-E_LIQ_06]
PARENT DIF
In English:
Scientific objectives:
-To study the photosynthetic behaviour of lichen nanofruticose species
(Bacidia Stipata, buellia cladocarpiza, Catillaria corymbosa and ...
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35.
Photosynthesis, fluorescence and microclimate measurements of several species of mosses and lichens from Botany Bay at Granite Harbour [K024_1991_1992_NZ_1]
The photosynthetic rate of Antarctic mosses and lichens was studied with investigations into the effects of high levels of light radiation and of possible UV effects. The mosses Pottia heimii, Bryum ...
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36.
Sensitivity to temperature and radiation and irradiance along latitudinal and altitudinal gradients [CNDA-ESP_ANT99-0680_LIQ_07]
PARENT DIF
In English:
This dataset contains information on the ECOTER project, carrying out an
integrated study of Antarctic vegetation communities, including mosses, lichens
and vascular ...
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37.
Study of nitrogen fixation, photosynthesis and lichenic recolonisation in the Antarctic tundra. [CNDA-ESP_ANT93-0011-E_LIQ_04]
PARENT DIF
In English:
Scientific objectives:
-Evaluate the degree of nitrogen fixation in run offs by Leptogium puberulum
and Nostoc sp. in relation to their photosynthetic activity ...
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38.
The photosynthetic performance (photosynthesis response curves to light and water content at various temperatures) of the pale and dark forms of the lichen Usnea spacelata from Cape Royds [K024_1996_1997_NZ_4]
The photosynthetic performance of the fruticose lichen Usnea sphacelata was measured using advanced, climatised photosynthetic cuvettes at Scott Base. Individuals of the Usnea sp were identified and ...
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39.
Calcite Concentration, Calcification, and Photosynthesis Measured during the U.S. JGOFS Arabian Sea Process Study [USJGOFS_ARAB_CALCITE_PROD]
A component of U.S. Joint Global Ocean Flux Study (JGOFS) is the
Arabian Sea Process Study. Eleven cruises took place aboard the R/V
Thomas G. Thompson for about sixteen months ...
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40.
Photosynthetic Pigment Concentrations Measured during the JGOFS North Atlantic Bloom Experiment (NABE) [JGOFS_NABE_PIGMENTS]
The Joint Global Ocean Flux Study (JGOFS) seeks to understand
the processes that control the transfer of carbon and other
biologically active elements in the ocean. In addition, ...
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41.
Natural spatial subsidies in continental Antarctic soil [K052_2001_2005_NZ_1]
CHILD DIFs
The soils of the McMurdo Dry Valleys are hypothesized to rely on external sources of nutrients (carbon, nitrogen, etc). The importance of these spatial subsidies on productivity and biological diversity ...
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42.
Physical, chemical and biological characteristics of soils from the upper Garwood Valley, Ross Sea Region, 2002-2006. [K052_2004_2005_NZ]
PARENT DIF
These data consist of a number of subsets of soil samples gathered from the upper Garwood Valley in January 2002, January 2003, January 2005 and January 2006. Replicate randomly-located samples of ...
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43.
Physical, chemical and biological characteristics of soils from the western Wright Vanda (Lake Vanda district), Ross Sea Region, 2006 [K052_2005_2006_NZ]
PARENT DIF
These data consist of a number of subsets of soil samples gathered from the Wright Valley in January 2006. Replicate randomly-located samples of surface soils to 10 cm depth have been gathered from ...
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44.
The legacy model vs the subsidy model to explain soil organic matter in the McMurdo Dry Valleys [K052_2004_2006_NZ_1]
CHILD DIFs
The Dry Valleys of Victoria Land, Antarctica, contain naturally simple ecosystems operating under extreme climatic conditions. Nutrients are limited and are thought to come from external sources from ...
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45.
Chlorophyll a fluorescence and temperature measurements from lichen and mosses buried under snow at Botany Bay, Granite Harbour [K024_1999_2000_NZ_2]
Fluorescence (chlorophyll a fluorescence) activity measurements were recorded for selected plants for about three weeks to determine if the photosystems of lichen or mosses are active in differing ...
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46.
Ecophysiology (CO2 / O2 exchange, nitrogen fixation rates and chlorophyll a levels) of endolithic algae from Marble Point, Antarctica [K024_1979_1980_NZ_2]
Rocks containing endolithic algae were collected from the Marble Point area. Infra-red gas analysis and Warburg Manometry studies were carried out to ascertain carbon dioxide and oxygen exchange. ...
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47.
Measurements of lichen activity (chlorophyll a fluorescence) for an entire year from Botany Bay, Granite Harbour [K024_1999_2000_NZ_3]
A system was established at the back of Botany bay to monitor chlorophyll a fluorescence from a thallus of Umbilicaria aprina continuously through the winter and the next season (lichen activity through ...
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48.
Measurements of photosynthetic recovery after the winter cold and desiccation at Botany Bay, Granite Harbour [K024_2000_2001_NZ_1]
Three CMS400 photosynthesis systems were used to study the recovery of photosynthetic activity by lichens and mosses rewetted for the first time after the winter at Botany Bay, Granite Harbour.
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49.
Photosynthetic physiology (CO2/O2 exchange, optimum temperature and light levels) of common bryophytes species that grow in the melt streams from glaciers in the Dry Valleys [K024_1979_1980_NZ_3]
Previous work (by Rostofer, 1970) covered the photosynthetic physiology of two common bryophyte species (Bryum antarcticum and B. Argenteum) found in the melt-streams from glaciers in the Dry Valleys ...
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50.
The effects of UVB on growth and productivity and photoadaptations of bottom ice algae at Cape Evans, McMurdo Sound [K136_1999_2002_NZ_1]
Sea ice hosts a large community of algae which is released into the food chain when the ice melts. The sea ice algae grow rapidly in the Antarctic spring at a time that coincides with the ozone hole ...
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Showing 1 through 50 of 87
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