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Ocean fertilisation: a positive effect from Antarctica’s great thaw? This project will evaluate how the Antarctica's great thaw may fertilise the Southern Ocean with iron and help mitigate carbon dioxide emissions now and in the future. The Southern Ocean is anaemic, meaning that the iron levels are too low to sustain photosynthesis, a pathway by which the oceans transform carbon dioxide into carbon-rich sediments. There is evidence that melting ice may supply substantial amount of iron, capable ....Ocean fertilisation: a positive effect from Antarctica’s great thaw? This project will evaluate how the Antarctica's great thaw may fertilise the Southern Ocean with iron and help mitigate carbon dioxide emissions now and in the future. The Southern Ocean is anaemic, meaning that the iron levels are too low to sustain photosynthesis, a pathway by which the oceans transform carbon dioxide into carbon-rich sediments. There is evidence that melting ice may supply substantial amount of iron, capable of boosting marine life and removing carbon dioxide. As polar regions show the earliest and most severe impacts of anthropogenic activity, studying ice-ocean interactions is central to supporting national and international policy development that can effectively limit the worst impacts of climate change globally. Read moreRead less
Epidemics, mortality and longevity in Tasmania, 1838-1930. This project will investigate areas of contemporary importance that can only be explored using historic-demographic data. National benefits include (1) gaining a better understanding of how epidemics spread through families and communities, and possible mortality and case-fatality rates, to assist in preparation for future epidemics; (2) improved accuracy in projecting older-age mortality and population ageing in Australia and other coun ....Epidemics, mortality and longevity in Tasmania, 1838-1930. This project will investigate areas of contemporary importance that can only be explored using historic-demographic data. National benefits include (1) gaining a better understanding of how epidemics spread through families and communities, and possible mortality and case-fatality rates, to assist in preparation for future epidemics; (2) improved accuracy in projecting older-age mortality and population ageing in Australia and other countries; and (3) more precise estimates of women's capacity to naturally conceive and carry to term by characteristics such as her age, her partner's age, and her number of previous births. The project will also result in augmentation of a unique publicly available dataset.Read moreRead less
Adaptive evolution of coleoid (cuttlefish, octopus, squid) venoms. This project represents an opportunity for biodiscovery from the venoms of cuttlefish, octopuses and squids. The independent adaptation for venom active at the subzero Arctic and Antarctic polar waters is of particular evolutionary interest. However, their divergent, bioactive compounds are also a rich drug design resource.
Compromised fertility in contemporary Indonesia. This project will benefit the community by informing service provision for infertility treatment, and by identifying the potential for prevention strategies. It will consolidate Australia's position at the forefront of research into assisted reproductive technologies, through the extension of this expertise to our near neighbours. It will contribute to the current gap in knowledge of infertility in Southeast Asia and in developing countries more b ....Compromised fertility in contemporary Indonesia. This project will benefit the community by informing service provision for infertility treatment, and by identifying the potential for prevention strategies. It will consolidate Australia's position at the forefront of research into assisted reproductive technologies, through the extension of this expertise to our near neighbours. It will contribute to the current gap in knowledge of infertility in Southeast Asia and in developing countries more broadly, and advance research on infertility conducted from human rights and anthropological perspectives. The project will reinforce the relevance of the United Nations definition of reproductive health, for all people regardless of whether they live in highly or lesser developed nations.Read moreRead less
The Antarctic Slope Current in a warming climate. Melting Antarctic ice sheets are responsible for 28% of global sea level rise in recent decades, and can contribute more than 1 metre of sea level rise by year 2100, and a staggering 15 metres by 2500. Increased glacial melt rates are best understood by studying changes in the circulation of water around the Antarctic coastline. The combination of physical processes that must be resolved in this region places a high demand on ocean observations a ....The Antarctic Slope Current in a warming climate. Melting Antarctic ice sheets are responsible for 28% of global sea level rise in recent decades, and can contribute more than 1 metre of sea level rise by year 2100, and a staggering 15 metres by 2500. Increased glacial melt rates are best understood by studying changes in the circulation of water around the Antarctic coastline. The combination of physical processes that must be resolved in this region places a high demand on ocean observations and modelling systems. This project uses a series of high-resolution ocean and ice experiments, cross-validated with observations, to provide a deeper understanding of how waters at the Antarctic margin respond to both anthropogenic and natural climate forcing.Read moreRead less
Atmospheric carbon fixation: a novel microbial process in Antarctic soils. This project aims to challenge our global understanding of carbon fixation. In most ecosystems, phototrophy supports higher-trophic life, yet no genetic evidence for photosynthesis exists in Antarctic desert soils. The project will determine the significance of atmospheric chemotrophy, a microbial driven process based on the consumption of atmospheric gases that it is proposed supports energy maintenance and biomass assim ....Atmospheric carbon fixation: a novel microbial process in Antarctic soils. This project aims to challenge our global understanding of carbon fixation. In most ecosystems, phototrophy supports higher-trophic life, yet no genetic evidence for photosynthesis exists in Antarctic desert soils. The project will determine the significance of atmospheric chemotrophy, a microbial driven process based on the consumption of atmospheric gases that it is proposed supports energy maintenance and biomass assimilation in nutrient-starved Antarctic desert soils. Additionally, the project will establish if these processes are structuring soil microbial communities, particularly in response to climate change. The expected project outcome is knowledge of primary production at the nutritional limits of life. This should provide significant benefit, such as a shift in our knowledge of the biological sciences as a new minimalistic mode of primary production.Read moreRead less
Improving models of West Antarctic glacial isostatic adjustment through a new surface velocity field. This project seeks to "fix the scales" being used to weigh changes in the Antarctic ice sheet. Present measurements are biased by a failure to accurately account for mass changes beneath the ice and within the Earth itself. This project seeks to use new measurements of the changes in the shape of the Earth to calibrate out that bias.
The puzzle of landfast sea ice: ‘Fast’ ice and near-term climate impacts. Sea ice which is held motionless against the Antarctic coastline (so-called landfast, or 'fast' ice) is hugely important for global climate and Southern Ocean ecosystems but its extent has recently plummeted. This project will address major knowledge gaps by providing novel satellite-based mapping and analysis of fast ice extent, towards enabling incorporation of fast ice into Australia’s new sea ice-ocean Earth system mod ....The puzzle of landfast sea ice: ‘Fast’ ice and near-term climate impacts. Sea ice which is held motionless against the Antarctic coastline (so-called landfast, or 'fast' ice) is hugely important for global climate and Southern Ocean ecosystems but its extent has recently plummeted. This project will address major knowledge gaps by providing novel satellite-based mapping and analysis of fast ice extent, towards enabling incorporation of fast ice into Australia’s new sea ice-ocean Earth system model for the first time – to allow assessment of its impacts on global ocean circulation and ice shelf melt. Outcomes also include new automated capability for monitoring fast ice extent, analysis of its variability and drivers, and first maps of its thickness and roughness.Read moreRead less
Where currents collide: tracking the biological impacts of climate change. This project will track the effects of climate change on Australia's unique marine biodiversity. Understanding the impacts of changing ocean currents on our coastal communities underpins the conservation and management of our valuable coastal resources.
Southern Ocean oxygen variability since the last glacial maximum. Recently observed decreases in ocean oxygen concentration could decrease ocean biodiversity and accelerate climate change. This project will determine the links between climate change and ocean oxygenation since the last ice age, and provide a way to predict future oxygen concentrations.