The whisker sensory system: processing information about object features. This is a new direction for research on the whisker sensory system and will put Australia at the forefront in this competitive area. Of particular significance, it will promote cross-fertilisation among three distinct disciplines - neuroscience, animal behaviour and computational neuroscience, with implications for robotics research as well. Should the robotics potential come to fruition, Australia will be in a prime posi ....The whisker sensory system: processing information about object features. This is a new direction for research on the whisker sensory system and will put Australia at the forefront in this competitive area. Of particular significance, it will promote cross-fertilisation among three distinct disciplines - neuroscience, animal behaviour and computational neuroscience, with implications for robotics research as well. Should the robotics potential come to fruition, Australia will be in a prime position to make early inroads into an important technology-based commercial enterprise. The interdisciplinary approach has important ramifications for training Australian PhD students and postdoctoral fellows and for attracting overseas research fellows. Read moreRead less
Gain modulation and stability in biological neural systems. This project is relevant to the National Research Priority area of Frontier Technologies and addresses fundamental cross-disciplinary issues of control and information processing in large, distributed neural systems that are at the cutting edge of intelligent processing systems. Applications are in rapidly growing fields of robotics, machine learning, adaptive control and intelligent systems, all with applications in diverse areas of ec ....Gain modulation and stability in biological neural systems. This project is relevant to the National Research Priority area of Frontier Technologies and addresses fundamental cross-disciplinary issues of control and information processing in large, distributed neural systems that are at the cutting edge of intelligent processing systems. Applications are in rapidly growing fields of robotics, machine learning, adaptive control and intelligent systems, all with applications in diverse areas of economic importance. Applications to cochlear implant speech processing will provide benefit for the hearing impaired. The project will provide students with training at an international level within Australia, thus helping ensure Australia maintains and extends its science and technology base into the futureRead moreRead less
Elucidating the mechanisms by which Scribble, Discs Large and Lethal Giant Larvae regulate epithelial polarity. Discs Large (Dlg) and Scribble are proteins that regulate cell shape by concentrating at particular regions within the cell and recruiting other proteins to that region. It is thought that the two proteins interact with each other, and with other proteins involved in protein trafficking and cell architecture, but it is not known how these events coordinate to produce a net outcome on ....Elucidating the mechanisms by which Scribble, Discs Large and Lethal Giant Larvae regulate epithelial polarity. Discs Large (Dlg) and Scribble are proteins that regulate cell shape by concentrating at particular regions within the cell and recruiting other proteins to that region. It is thought that the two proteins interact with each other, and with other proteins involved in protein trafficking and cell architecture, but it is not known how these events coordinate to produce a net outcome on cell shape. To answer these questions, the dynamic events involved in localization of Dlg, Scribble, and associated proteins will be determined, in mammalian cells and in whole organs of the vinegar fly.Read moreRead less
Mobility of log-dependent invertebrates in fragmented forest. Clearing of Australian native forests continues apace. This leads to declines in total forest area and creates isolated remnants with depleted woody debris. Critical forest processes driven by invertebrates occur in this debris. Despite its major economic and conservation significance, there is little information on the impacts of habitat loss and alteration on organisms in decomposing logs. We will utilize recent advances in popu ....Mobility of log-dependent invertebrates in fragmented forest. Clearing of Australian native forests continues apace. This leads to declines in total forest area and creates isolated remnants with depleted woody debris. Critical forest processes driven by invertebrates occur in this debris. Despite its major economic and conservation significance, there is little information on the impacts of habitat loss and alteration on organisms in decomposing logs. We will utilize recent advances in population genetics to compare impacts on a suite of log-dependent invertebrates in an islands-of-bush-in-a-sea-of-pines model. This will facilitate improvements in conservation and sustainable management outcomes in forests.Read moreRead less
Population genetic structure and habitat specialisation in amphibians. This will be the first study to uncover the initial stages of ecological speciation in a fully natural setting, which will solidify Australia's leading position in evolutionary biology. The project promotes active international collaboration and bolsters the vibrant intellectual community here at home. Many Australian undergraduate and PhD students will participate in cutting-edge science and develop connections with overseas ....Population genetic structure and habitat specialisation in amphibians. This will be the first study to uncover the initial stages of ecological speciation in a fully natural setting, which will solidify Australia's leading position in evolutionary biology. The project promotes active international collaboration and bolsters the vibrant intellectual community here at home. Many Australian undergraduate and PhD students will participate in cutting-edge science and develop connections with overseas colleagues, helping Australia maintain its prominent international reputation in the future. The work also advances knowledge and appreciation of the natural world - a more urgent objective now than ever before. Ecological information is especially critical for amphibians, many of which are declining in Australia.Read moreRead less
Structural investigations into the regulation of programmed cell death. One in three men and one in four women in Australia will develop cancer by the age of 75 at current incidence rates. At its heart, cancer is a disease of uncontrolled cell proliferation. One of the body's main defence mechanisms against excess cell proliferation is Programmed Cell Death, a process which becomes dysfunctional in cancer cells. This work will provide three dimensional images of the machinery that controls Progr ....Structural investigations into the regulation of programmed cell death. One in three men and one in four women in Australia will develop cancer by the age of 75 at current incidence rates. At its heart, cancer is a disease of uncontrolled cell proliferation. One of the body's main defence mechanisms against excess cell proliferation is Programmed Cell Death, a process which becomes dysfunctional in cancer cells. This work will provide three dimensional images of the machinery that controls Programmed Cell Death. This information is critical for the development of drugs designed to re-initiate Programmed Cell Death in cancer cells.Read moreRead less
Regulation and function of a novel protein tyrosine phosphatase. A cell's ability to respond to its extracellular environment involves a complex and highly organised series of events referred to as cellular signalling. These signalling processes regulate fundamental cellular processes that underlie the growth and development of all living organisms. This proposal focuses on a group of enzymes known as the protein tyrosine phosphatases and their ability to regulate tyrosine phosphorylation-depe ....Regulation and function of a novel protein tyrosine phosphatase. A cell's ability to respond to its extracellular environment involves a complex and highly organised series of events referred to as cellular signalling. These signalling processes regulate fundamental cellular processes that underlie the growth and development of all living organisms. This proposal focuses on a group of enzymes known as the protein tyrosine phosphatases and their ability to regulate tyrosine phosphorylation-dependent signalling. We have identified a novel human protein tyrosine phosphatase and we aim to characterise its regulation and biological function.Read moreRead less
Characterisation of a novel protein tyrosine phosphatase. A cells ability to respond to its extracellular environment involves a complex and highly organised series of events referred to as cellular signalling. These signalling processes regulate fundamental cellular events that underlie the growth and development of all living organisms. This proposal focuses on a group of enzymes known as the protein tyrosine phosphatases and their ability to regulate tyrosine phosphorylation-dependent signa ....Characterisation of a novel protein tyrosine phosphatase. A cells ability to respond to its extracellular environment involves a complex and highly organised series of events referred to as cellular signalling. These signalling processes regulate fundamental cellular events that underlie the growth and development of all living organisms. This proposal focuses on a group of enzymes known as the protein tyrosine phosphatases and their ability to regulate tyrosine phosphorylation-dependent signalling. We have identified a novel human protein tyrosine phosphatase and we aim to characterise its function and the mechanism by which it is regulated.Read moreRead less
Colour polymorphisms and speciation: linking macroevolutionary patterns with microevolutionary processes. Polymorphic species with many different colour forms have inspired biological inquiry since Aristotle. This project takes advantage of remarkable variation in male throat coloration in the South Australian tawny dragon lizard to contribute to a fundamental, yet unresolved, question in biology: what are the evolutionary processes generating biodiversity? This research will reinforce Australia ....Colour polymorphisms and speciation: linking macroevolutionary patterns with microevolutionary processes. Polymorphic species with many different colour forms have inspired biological inquiry since Aristotle. This project takes advantage of remarkable variation in male throat coloration in the South Australian tawny dragon lizard to contribute to a fundamental, yet unresolved, question in biology: what are the evolutionary processes generating biodiversity? This research will reinforce Australia's outstanding reputation in the fields of Ecology and Evolution and contribute to the training of internationally competitive postgraduate students. It will also improve our understanding of the biology and genetic diversity of a fascinating Australian reptile and its habitat, within a region of national biodiversity significance.Read moreRead less
The success and rapid evolution of invasive species: resolving a genetic paradox. Invasive species have an enormous economic impact on trade, agriculture, aquaculture, fisheries and eco-tourism in Australia. In order to negate such detrimental impacts, integrated strategies need to be formulated to effectively control and eradicate introduced species. Our limited knowledge of the factors underlying the success of invasive species has hampered such efforts. A detailed understanding of the invasio ....The success and rapid evolution of invasive species: resolving a genetic paradox. Invasive species have an enormous economic impact on trade, agriculture, aquaculture, fisheries and eco-tourism in Australia. In order to negate such detrimental impacts, integrated strategies need to be formulated to effectively control and eradicate introduced species. Our limited knowledge of the factors underlying the success of invasive species has hampered such efforts. A detailed understanding of the invasion dynamics of introduced species is essential for identifying potential weaknesses that can be exploited in management strategies. My research will examine the invasion dynamics of a successful invasive species, the delicate skink, providing information directly relevant to the management of introduced species in Australia.Read moreRead less