Better greenhouse gas budgets: new techniques and applications. The most recent (2001) international assessment strongly confirms the link between global climate change and human-induced changes in atmospheric composition. However, improved knowledge of atmospheric trace gas budgets is essential for better modelling of future climate change and formulation of public policy. We have developed novel techniques for atmospheric trace gas and isoptic analysis that provide new tools for resolving trac ....Better greenhouse gas budgets: new techniques and applications. The most recent (2001) international assessment strongly confirms the link between global climate change and human-induced changes in atmospheric composition. However, improved knowledge of atmospheric trace gas budgets is essential for better modelling of future climate change and formulation of public policy. We have developed novel techniques for atmospheric trace gas and isoptic analysis that provide new tools for resolving trace gas budgets in ways not previously possible. We will apply these tools to improve our understanding of the Australian and global budgets of greenhouse gases, especially nitrous oxide and methane, for which sources still have unacceptably large uncertainties.Read moreRead less
Integrated Carbon Accounting and Information Management Systems. The aim of this project is to integrate environmental science and information technology to enhance carbon accounting management. The project is significant because it will provide for the first time a mechanism by which potential investors in forestry/carbon sequestration programs will be able to acquire online advice on what trees and soil types are most compatible, when and how to plant. This project will provide an interactive ....Integrated Carbon Accounting and Information Management Systems. The aim of this project is to integrate environmental science and information technology to enhance carbon accounting management. The project is significant because it will provide for the first time a mechanism by which potential investors in forestry/carbon sequestration programs will be able to acquire online advice on what trees and soil types are most compatible, when and how to plant. This project will provide an interactive web based program to calculate the environmental and economic value of such an investment, assess current market trends and access to scientists, brokers, current legislation and applicable publications.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0668400
Funder
Australian Research Council
Funding Amount
$100,000.00
Summary
A high-throughput stable isotope ratio mass spectrometer for water resource management and climate change studies. Cave speleothems are highly sensitive to climate and are widely used to investigate past climate variability. Many researchers in Australia are now employing speleothems to find out more about the long-term behaviour of the Australian climate system, especially regarding ENSO. However, progress is inhibited by a lack of appropriate instrumentation capable of meeting the unique deman ....A high-throughput stable isotope ratio mass spectrometer for water resource management and climate change studies. Cave speleothems are highly sensitive to climate and are widely used to investigate past climate variability. Many researchers in Australia are now employing speleothems to find out more about the long-term behaviour of the Australian climate system, especially regarding ENSO. However, progress is inhibited by a lack of appropriate instrumentation capable of meeting the unique demands of speleothem research. Our new mass spectrometer will provide precise, rapid and low-cost isotope analyses of speleothem samples, and in doing so generate exciting and important palaeoclimate data, particularly in the area of pre-instrumental rainfall histories.Read moreRead less
A Stochastic Downscaling Framework for Catchment Scale Climate Change Impact Assessment. We propose a framework for climate change impact assessment at the catchment scale, that can both assess the change in catchment yield, as well as refine management policies to mitigate likely impacts. A key aim is to represent the full uncertainty in the simulated streamflow, thus enabling a risk-based comparison of current policies with those for climate change conditions. Given the importance of this rese ....A Stochastic Downscaling Framework for Catchment Scale Climate Change Impact Assessment. We propose a framework for climate change impact assessment at the catchment scale, that can both assess the change in catchment yield, as well as refine management policies to mitigate likely impacts. A key aim is to represent the full uncertainty in the simulated streamflow, thus enabling a risk-based comparison of current policies with those for climate change conditions. Given the importance of this research to the availability of water under a climate change scenario, this proposal has been listed under the ARC's Research Priority 1: 'An Environmentally Sustainable Australia', with the specific priority goals being 'Water - A Critical Resource', and 'Responding to climate change and variability'.Read moreRead less
Australia's mammalian carnivore diversity in space and time. To more effectively address the current extinction crisis we need to understand past diversity. This research program will comprehensively investigate the diversity of mammalian carnivores on three continents over geological time. Results will provide insight into whether the evolution of Australia's mammal carnivores differs fundamentally from those of other continents, as has often been suggested but not quantitatively demonstrated. ....Australia's mammalian carnivore diversity in space and time. To more effectively address the current extinction crisis we need to understand past diversity. This research program will comprehensively investigate the diversity of mammalian carnivores on three continents over geological time. Results will provide insight into whether the evolution of Australia's mammal carnivores differs fundamentally from those of other continents, as has often been suggested but not quantitatively demonstrated. Studies focused in the present are important, but often miss critical factors that can only be clarified through analyses with deep time perspectives. The findings will translate into an improved understanding of what makes Australia unique and better-informed decisions regarding wildlife management.Read moreRead less
Stress, virulence and bacterial disease in temperate seaweeds: the rise of the microbes. Climate change is predicted to increase the spread and virulence of pathogens, and decrease the resistance to disease via temperature stress on the hosts. Combined with other human impacts (higher nutrients, pollution), we may be facing a major rise in the effect of disease on natural communities. However, these effects are largely unstudied. We will investigate the impact of marine pathogens on kelps and ....Stress, virulence and bacterial disease in temperate seaweeds: the rise of the microbes. Climate change is predicted to increase the spread and virulence of pathogens, and decrease the resistance to disease via temperature stress on the hosts. Combined with other human impacts (higher nutrients, pollution), we may be facing a major rise in the effect of disease on natural communities. However, these effects are largely unstudied. We will investigate the impact of marine pathogens on kelps and other seaweeds when they are stressed by temperature, elevated nutrients or other anthropogenic stressors. Kelp are the 'trees of the oceans', the organisms responsible for creating much of the habitat that fishes and other organisms live in. The loss of kelp forests due to disease would radically change these environments.Read moreRead less
Impact of Metal - Reactive Oxygen Species (ROS) Interactions on Growth and Toxicity of Ichthyotoxic Algae in Australian Coastal Waters. Toxic algal blooms in estuarine and coastal waters can have devastating economic and ecological impacts but remarkably little is known about the factors that control either organism growth or toxin severity. Recent studies suggest that the interplay between delivery of the nutrient trace metals iron and copper and the method via which the organism acts to assimi ....Impact of Metal - Reactive Oxygen Species (ROS) Interactions on Growth and Toxicity of Ichthyotoxic Algae in Australian Coastal Waters. Toxic algal blooms in estuarine and coastal waters can have devastating economic and ecological impacts but remarkably little is known about the factors that control either organism growth or toxin severity. Recent studies suggest that the interplay between delivery of the nutrient trace metals iron and copper and the method via which the organism acts to assimilate these metals is critical to the generation and aggressiveness of the toxins produced. These processes will be investigated in this study and conceptual and mathematical models will be developed which will assist in assessing management options for estuarine and coastal environments.Read moreRead less
How are weeds adapting to life in Australia? Quantifying the rate and direction of evolution in introduced species. Introduced plants are a major problem throughout Australia. Introduced species are listed as one of the most severe threats to biodiversity in Australia, and managing them costs Australia around $4 billion per annum. The information we gather in this project will tell us what sort of changes introduced plants undergo when they arrive in Australia; how quickly plants can adapt to a ....How are weeds adapting to life in Australia? Quantifying the rate and direction of evolution in introduced species. Introduced plants are a major problem throughout Australia. Introduced species are listed as one of the most severe threats to biodiversity in Australia, and managing them costs Australia around $4 billion per annum. The information we gather in this project will tell us what sort of changes introduced plants undergo when they arrive in Australia; how quickly plants can adapt to a new environment, and what sort of species are best able to adapt to new conditions. We will also ask whether introduced species are still adapting to Australian conditions. If so, then we might expect even more naturalised species to become problem weeds in the future. This sort of knowledge is fundamental to our ability to develop appropriate control programs.Read moreRead less
Invasive plant species and climate change in Australia: predicting the threat and projecting the future. The interaction between climate change and invasive pest species poses a significant threat to Australia's biodiversity. The need for research on both the independent impacts of climate change and invasive species, as well as their interaction, has been clearly identified by both national and state governments, and is identified as a priority under the National Biodiversity and Climate Change ....Invasive plant species and climate change in Australia: predicting the threat and projecting the future. The interaction between climate change and invasive pest species poses a significant threat to Australia's biodiversity. The need for research on both the independent impacts of climate change and invasive species, as well as their interaction, has been clearly identified by both national and state governments, and is identified as a priority under the National Biodiversity and Climate Change Action Plan (2004-2007). The proposed research will assess exotic plant species' responses to climate change, identify potential hotspots of invasion, and provide a risk assessment framework to enable prioritization of exotic plant management under future climate.Read moreRead less