What is killing the honeybees? The role of RNA viruses. This project aims to determine if the Varroa mite, the most important parasite of honeybees, selects for virulent strains of RNA viruses. Before Varroa’s inevitable arrival in Australia, this project will disentangle the effect of Varroa and the bees’ immune system on the evolution of virulence of bee viruses. Australia’s honeybees are Varroa-naïve and don’t carry virulent viruses. There is a known association between Varroa and colonies dy ....What is killing the honeybees? The role of RNA viruses. This project aims to determine if the Varroa mite, the most important parasite of honeybees, selects for virulent strains of RNA viruses. Before Varroa’s inevitable arrival in Australia, this project will disentangle the effect of Varroa and the bees’ immune system on the evolution of virulence of bee viruses. Australia’s honeybees are Varroa-naïve and don’t carry virulent viruses. There is a known association between Varroa and colonies dying from viruses; however, it is not known what is cause and effect. This project will clarify Varroa’s exact role in the evolution of virulence in RNA viruses. The intended outcome is increased knowledge allowing the design of an effective treatment to prevent the death of honeybee colonies.Read moreRead less
Integrating nutritional immunology. What an organism eats affects both its susceptibility to disease and the community of beneficial microorganisms living within its gut. This project will study how nutrition, immunity and the flora of the gut interact, and whether hosts are able to select a diet that optimises their immune response and gut flora in the face of disease challenges.
Evolutionary history and impact of adeno-associated viruses in Australia. Recently accrued evidence identifies Australia as an ideal closed-model system in which to elucidate the evolutionary history of a group of non-pathogenic viruses, known as adeno-associated viruses (AAVs). This project aims to trace back the evolutionary history of AAVs for tens of millions of years via molecular fossil imprints left behind by ancient viral invasions of Australian marsupial genomes. Concurrently, the poten ....Evolutionary history and impact of adeno-associated viruses in Australia. Recently accrued evidence identifies Australia as an ideal closed-model system in which to elucidate the evolutionary history of a group of non-pathogenic viruses, known as adeno-associated viruses (AAVs). This project aims to trace back the evolutionary history of AAVs for tens of millions of years via molecular fossil imprints left behind by ancient viral invasions of Australian marsupial genomes. Concurrently, the potential impact that these viral invasions had on the evolutionary development of their ancestral hosts will be investigated. This could facilitate previously unattainable insights into both AAV and marsupial evolution, with broader implications relevant to the advancement of the fields of virology and mammalian evolution.Read moreRead less
Microeconomic effects of Australian natural disasters. This project aims to describe and identify the effects of Australian natural disasters – such as the Black Saturday bushfires and the Brisbane floods – on important microeconomic outcomes, including health, education and employment. Natural disasters have profound economic and social effects on individuals and communities. This project intends to bring evidence on how disasters affect individuals and how the effects can be lessened. The proj ....Microeconomic effects of Australian natural disasters. This project aims to describe and identify the effects of Australian natural disasters – such as the Black Saturday bushfires and the Brisbane floods – on important microeconomic outcomes, including health, education and employment. Natural disasters have profound economic and social effects on individuals and communities. This project intends to bring evidence on how disasters affect individuals and how the effects can be lessened. The project expects to inform policy-makers on these critical issues by analysing field, survey and administrative data on individuals before and after past disasters.Read moreRead less
Revealing the evolutionary and ecological dynamics of avian influenza virus. This project aims to understand how avian influenza virus (AIV) emerges, evolves and spreads in wild birds. AIV has the potential to devastate the poultry industry and cause human pandemics, but the factors that shape the genetic diversity of AIV in its wild bird reservoir are poorly understood. The project plans to combine genomic, ecological and phylogenetic approaches to reveal key aspects of AIV evolution, as well a ....Revealing the evolutionary and ecological dynamics of avian influenza virus. This project aims to understand how avian influenza virus (AIV) emerges, evolves and spreads in wild birds. AIV has the potential to devastate the poultry industry and cause human pandemics, but the factors that shape the genetic diversity of AIV in its wild bird reservoir are poorly understood. The project plans to combine genomic, ecological and phylogenetic approaches to reveal key aspects of AIV evolution, as well as the risk for future viral emergence. Using sampling sites in Australia and Antarctica, it plans to investigate AIV diversity, the evolutionary dynamics of AIV in wild birds and poultry, and the role played by environmental transmission in AIV ecology.Read moreRead less
An interdisciplinary approach to host-pathogen interactions in infection. This project aims to understand the molecular and cellular interactions between host and parasite, as well as providing a quantitative framework for analysing infection dynamics in other systems. Infection involves a complex interaction between the host and the parasite, which is very dynamic and therefore difficult to study by traditional sampling and analysis approaches. This project has combined mathematical modelling w ....An interdisciplinary approach to host-pathogen interactions in infection. This project aims to understand the molecular and cellular interactions between host and parasite, as well as providing a quantitative framework for analysing infection dynamics in other systems. Infection involves a complex interaction between the host and the parasite, which is very dynamic and therefore difficult to study by traditional sampling and analysis approaches. This project has combined mathematical modelling with a novel experimental protocol to allow the study of kinetics of parasite replication in vivo. Expected outcomes will provide significant benefits, such as new avenues for vaccination and immune intervention.Read moreRead less
Understanding mutation and genetic reassortment in viruses: new mathematical models of viral dynamics and evolution. This project aims to understand how evolutionary processes and ecological conditions combine to ignite and sustain viral epidemics. Using novel mathematical models and statistical methods we will study the manner in which viral genes mutate and are recombined, as well as the rates of these important forces.
Nanosilver antimicrobial resistance in target pathogens. This project aims to elucidate the important phenomena of bacterial resistance to antimicrobial nanosilver, currently one of the most developed and commercialised products of nanotechnology. The integrated research approach comprises of concurrent identification of the origins and routes of nanosilver toxicity in bacteria and the arising emergence and mechanisms of bacterial defence to the toxicity. The generated knowledge is to form a bas ....Nanosilver antimicrobial resistance in target pathogens. This project aims to elucidate the important phenomena of bacterial resistance to antimicrobial nanosilver, currently one of the most developed and commercialised products of nanotechnology. The integrated research approach comprises of concurrent identification of the origins and routes of nanosilver toxicity in bacteria and the arising emergence and mechanisms of bacterial defence to the toxicity. The generated knowledge is to form a base template for novel nanosilver engineering with less tendency for resistance development and to facilitate tracking of resistance and its spread amongst microorganisms. The knowledge has far-reaching implications on the better governance of nanosilver use, including its disposal.Read moreRead less
Reducing flood loss - A data-assimilation framework for improving forecasting capability in sparsely gauged regions. Floods are the biggest and severest natural disaster we face year after year. Furthermore, there has been little improvement in our capability to prevent flood damage over past decades. This research proposes a paradigm shift in the way flood forecasting, warning and evacuation proceeds, using 21st century technologies for collecting and incorporating flood related data into exist ....Reducing flood loss - A data-assimilation framework for improving forecasting capability in sparsely gauged regions. Floods are the biggest and severest natural disaster we face year after year. Furthermore, there has been little improvement in our capability to prevent flood damage over past decades. This research proposes a paradigm shift in the way flood forecasting, warning and evacuation proceeds, using 21st century technologies for collecting and incorporating flood related data into existing modelling platforms. It is argued that assimilating real-time satellite soil moisture data into flood models can increase accuracy manifold, even if the images are uncertain. The understanding gained in course of the proposed project has the potential to significantly reduce the damage caused year after year, especially in the data poor regions of the world.Read moreRead less
Microbial natural history and molecular evolution. This project aims to develop mathematical and computational models of microbial evolution that capture dynamics at both within-host and between-host scales, combined with processes of mutation. Integration of these elements with computational statistical methods will produce a framework that will enable inference from genome sequencing data. The mathematical models will be applied to bacterial genomic data to investigate how natural selection ac ....Microbial natural history and molecular evolution. This project aims to develop mathematical and computational models of microbial evolution that capture dynamics at both within-host and between-host scales, combined with processes of mutation. Integration of these elements with computational statistical methods will produce a framework that will enable inference from genome sequencing data. The mathematical models will be applied to bacterial genomic data to investigate how natural selection acts on experimental and natural populations of microorganisms. The mathematical models and statistical approaches developed here are intended to be applicable to infectious disease of both humans and domesticated animals, and could influence public health policies.Read moreRead less