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Development of New Generation Tools for Regional-Scale Mapping of Noxious Weeds. This project aims to determine the potential of new remote sensing and analytical tools for cost-effectively mapping weed infestations. We envisage integrating high resolution air- and satellite-borne technology, GIS and GPS, so that weeds' distribution and spread over time can be mapped efficiently. Two contrasting case studies will be selected, an annual/biennial herbaceous agricultural weed and a woody weed of se ....Development of New Generation Tools for Regional-Scale Mapping of Noxious Weeds. This project aims to determine the potential of new remote sensing and analytical tools for cost-effectively mapping weed infestations. We envisage integrating high resolution air- and satellite-borne technology, GIS and GPS, so that weeds' distribution and spread over time can be mapped efficiently. Two contrasting case studies will be selected, an annual/biennial herbaceous agricultural weed and a woody weed of semi-arid and arid rangelands. Both are of significant importance nationally, and in Western Australia. Results will be both directly relevant to the management of these specific weeds, and to the development of similar mapping and monitoring systems for other weeds.Read moreRead less
Development of environmentally-friendly insecticides for the Australian livestock industry. Many insects and other arthropods are serious pests of Australian livestock. Australian farmers spend about $300 million per annum on insecticides and acaricides, while Australian consumers spend more than $100 million annually on insecticides for use on pets and around the home and garden. Unfortunately, many of these arthropod pests have developed resistance to chemical insecticides. This aim of this re ....Development of environmentally-friendly insecticides for the Australian livestock industry. Many insects and other arthropods are serious pests of Australian livestock. Australian farmers spend about $300 million per annum on insecticides and acaricides, while Australian consumers spend more than $100 million annually on insecticides for use on pets and around the home and garden. Unfortunately, many of these arthropod pests have developed resistance to chemical insecticides. This aim of this research program is to develop a new generation of environmentally-friendly natural products that can be used to control arthropod pests on farms and around the home and garden.Read moreRead less
Porous Silica-Based Nanocapsules for Targeted and Controlled Release of Biocides. The project will lead to significant advances in nanotechnology and agrichemical biocide applications. A highly efficient insect control technology will be developed, that will be cost-effective with the ability for targeted control and release of biocides. The encapsulation technology will reduce the total usage and costs of biocides thus benefit the environment in terms of reduced environment pollution and enhanc ....Porous Silica-Based Nanocapsules for Targeted and Controlled Release of Biocides. The project will lead to significant advances in nanotechnology and agrichemical biocide applications. A highly efficient insect control technology will be developed, that will be cost-effective with the ability for targeted control and release of biocides. The encapsulation technology will reduce the total usage and costs of biocides thus benefit the environment in terms of reduced environment pollution and enhanced ecological safety.Read moreRead less
Origin of animal sensory and nervous systems: a case study in cell type evolution. The origin of the nerve cell and the nervous system allowed the first animals to interact with their biotic and abiotic environment in rapid and complex ways. These capabilities are the primary agents for success in the animal kingdom, underpinning the ability to capture food, avoid predation, and find a mate. These same nerve cells have bestowed on the human brain cognitive abilities that have driven our biologic ....Origin of animal sensory and nervous systems: a case study in cell type evolution. The origin of the nerve cell and the nervous system allowed the first animals to interact with their biotic and abiotic environment in rapid and complex ways. These capabilities are the primary agents for success in the animal kingdom, underpinning the ability to capture food, avoid predation, and find a mate. These same nerve cells have bestowed on the human brain cognitive abilities that have driven our biological and cultural evolution. Despite the phenomenal importance of the nerve cell, we know almost nothing about its origin and early evolution. This basic research project seeks to make a major contribution towards addressing this gap in knowledge.Read moreRead less
Do costs of dispersal reduce connectivity in marine invertebrate populations? Current approaches to marine management - designing marine reserves, understanding pest incursions, and managing fisheries, acknowledge that marine animals exist in isolated local populations, connected by dispersal. Dispersal is crucial for local populations to persist or be managed sustainably, but our understanding remains poor and often limits our management. Most current approaches to estimating connectivity are ....Do costs of dispersal reduce connectivity in marine invertebrate populations? Current approaches to marine management - designing marine reserves, understanding pest incursions, and managing fisheries, acknowledge that marine animals exist in isolated local populations, connected by dispersal. Dispersal is crucial for local populations to persist or be managed sustainably, but our understanding remains poor and often limits our management. Most current approaches to estimating connectivity are adequate only if all dispersers are equally successful at establishing. Dispersal, however, is risky or costly, and we propose that these costs reduce the success of colonists from more distant populations. If this is correct, persistence of local populations may rely disproportionately on other nearby local populations.Read moreRead less
Post-settlement mortality as a filter for variable settlement in marine invertebrates. Most marine organisms have a planktonic dispersive stage. Recruitment from this stage into adult populations is a key process. Variations in recruitment affect our ability to manage fisheries, plan national parks, and predict environmental impacts. Our ability to understand variation in recruitment is limited by our poor understanding of one key component of recruitment, post-settlement mortality. I will t ....Post-settlement mortality as a filter for variable settlement in marine invertebrates. Most marine organisms have a planktonic dispersive stage. Recruitment from this stage into adult populations is a key process. Variations in recruitment affect our ability to manage fisheries, plan national parks, and predict environmental impacts. Our ability to understand variation in recruitment is limited by our poor understanding of one key component of recruitment, post-settlement mortality. I will take several common, economically important, marine invertebrates, and determine how strongly post-settlement mortality affects overall recruitment. By looking at several species, I will be able to identify general patterns applicable to a wider range of species.Read moreRead less
Discovery of the physiological and molecular modes of action of butenolides in promoting seed germination and vigour in plants. The Australian discovery of butenolides opens up a new scientific frontier and new opportunities for land management, plant conservation and agriculture. Butenolides will be used to promote seed germination and plant growth in land reclamation, in conservation of species, to break dormancy in weeds so that they can be eradicated, and to promote germination and vigour in ....Discovery of the physiological and molecular modes of action of butenolides in promoting seed germination and vigour in plants. The Australian discovery of butenolides opens up a new scientific frontier and new opportunities for land management, plant conservation and agriculture. Butenolides will be used to promote seed germination and plant growth in land reclamation, in conservation of species, to break dormancy in weeds so that they can be eradicated, and to promote germination and vigour in crops. Realising the full potential of butenolides demands that we understand how they work so that creative approaches can be developed that may not even require use of the chemical. Crucially by achieving these aims ahead of international competitors we can ensure that Australia gains maximum benefit.Read moreRead less
Mass-production of beneficial insects for commercial pest management - physicochemical definition of oviposition sites for development of cost-efficient artificial substrates. The mass-production of beneficial insects for commercial purposes demands the development of cost-effective techniques for breeding and distributing them to growers. Many predatory beneficial insects lay their eggs in sites that prevent effective mass culturing. To circumvent this difficulty, it should be possible to defin ....Mass-production of beneficial insects for commercial pest management - physicochemical definition of oviposition sites for development of cost-efficient artificial substrates. The mass-production of beneficial insects for commercial purposes demands the development of cost-effective techniques for breeding and distributing them to growers. Many predatory beneficial insects lay their eggs in sites that prevent effective mass culturing. To circumvent this difficulty, it should be possible to define such oviposition sites in chemical and physical terms, and then use the information to develop artificial substrates that are convenient for mass rearing the insects and for disseminating them to growers. We will use the mealybug predator Cryptolaemus montrouszieri to test the feasibility of this approach and to assess its application to other beneficial species.Read moreRead less
The regeneration niche of invasive plants: managing the weed-shaped hole. In Australia $20 million was spent on weed control in natural areas in 2001-02 and is indicative of the level of funding for weed control programs each year. An understanding of how current weed control programs affect the regeneration of weeds in the system will give us novel insights into the persistence of weed populations despite sustained investment in control. Environmental weeds threaten biodiversity and ecosystem ....The regeneration niche of invasive plants: managing the weed-shaped hole. In Australia $20 million was spent on weed control in natural areas in 2001-02 and is indicative of the level of funding for weed control programs each year. An understanding of how current weed control programs affect the regeneration of weeds in the system will give us novel insights into the persistence of weed populations despite sustained investment in control. Environmental weeds threaten biodiversity and ecosystem function in unique Australian communities, better management of weeds will have conservation, ecosystem service provision and amenity values nationally. This project highlights the importance of understanding the weed regeneration niche for successful long-term and sustainable control.Read moreRead less
Discovery of pathways to embryogenesis in pathogenic flatworm parasites using microdissection and transcriptomic technologies. The cost to Australia of flatworm parasites to animal production and human health is substantial (hundreds of millions of dollars per year). This research will give new insights into how flatworms reproduce and equip their progeny for survival, providing impetus for new vaccine or drug therapies to be developed. As these pathogens are more significant in Australia's ne ....Discovery of pathways to embryogenesis in pathogenic flatworm parasites using microdissection and transcriptomic technologies. The cost to Australia of flatworm parasites to animal production and human health is substantial (hundreds of millions of dollars per year). This research will give new insights into how flatworms reproduce and equip their progeny for survival, providing impetus for new vaccine or drug therapies to be developed. As these pathogens are more significant in Australia's near neighbours, this project will strengthen Australia's international leadership in this field. Our study will provide, for the first time for any helminth parasite, a freely available genetic database that profiles the gene expression repertoire of individual parasite tissues, a development likely to enhance the international effort in controlling these harmful diseases.Read moreRead less