Disease in endangered species: The importance of multiple-host infection and spatial structure. Pathogens are increasingly recognised as threats to endangered species. Managing such threats requires models to assess alternative strategies. Most current models deal with a single host and single pathogen, without spatial structure, although multiple-host pathogens pose the greatest conservation threats. This project develops a new generation of spatially-structured multiple-host models, and applie ....Disease in endangered species: The importance of multiple-host infection and spatial structure. Pathogens are increasingly recognised as threats to endangered species. Managing such threats requires models to assess alternative strategies. Most current models deal with a single host and single pathogen, without spatial structure, although multiple-host pathogens pose the greatest conservation threats. This project develops a new generation of spatially-structured multiple-host models, and applies them to two case studies. The first is the chytrid fungus that is thought to have lead to widespread declines and extinctions of frogs in Australia and overseas. The second is birdpox and malaria that have led to the extinction and endangerment of much of Hawaii's endemic avifauna.Read moreRead less
New thinking on the relationship of dingo ecology to biodiversity conservation and sustainable cattle production. This project will provide new understanding of the role of Australia's only native large mammal predator in sustaining biodiversity and ecological function. This will result in improved management of dingoes as a key part of Australian ecosystems. The project will also test the possibility that relaxation of current controls on dingoes could provide net benefits to beef cattle produc ....New thinking on the relationship of dingo ecology to biodiversity conservation and sustainable cattle production. This project will provide new understanding of the role of Australia's only native large mammal predator in sustaining biodiversity and ecological function. This will result in improved management of dingoes as a key part of Australian ecosystems. The project will also test the possibility that relaxation of current controls on dingoes could provide net benefits to beef cattle producers, and thereby improve the viability and sustainability of Australia's cattle-grazing industry.Read moreRead less
An immunological and immunogenetic approach to understand and to protect Tasmanian devils against Devil Facial Tumour Disease. The Tasmanian devil is the world's largest living carnivorous marsupial. From an environmental perspective, devils play a fundamental role through scavenging. Dead and dying animals were removed nightly from Tasmania's landscape and therefore decaying carcases did not require removal. Loss of this top order scavenger will alter the balance of biodiversity and non-native ....An immunological and immunogenetic approach to understand and to protect Tasmanian devils against Devil Facial Tumour Disease. The Tasmanian devil is the world's largest living carnivorous marsupial. From an environmental perspective, devils play a fundamental role through scavenging. Dead and dying animals were removed nightly from Tasmania's landscape and therefore decaying carcases did not require removal. Loss of this top order scavenger will alter the balance of biodiversity and non-native animals (such as foxes, feral cats, crows, and even European wasps) will then compete for this scavenger role. As these animals are non-selective they will also prey on living animals and many of Tasmania's native animals (such as Eastern barred bandicoot, potoroos, quolls etc.) will be seriously threatened and our biodiverse landscape could be irreversibly altered.Read moreRead less
Evolution, disease and extinction - using ancient and modern Deoxyribonucleic acid (DNA) to investigate molecular evolution in the Tasmanian devil. The Tasmanian devil is Australia's largest living marsupial carnivore and one of Tasmania's key tourism icons. Extinction in the wild will have long-term impacts on Tasmanian native ecosystems and economy. This study will provide critical genetic data and tools to monitor and prioritise conservation strategies, including insurance populations and dis ....Evolution, disease and extinction - using ancient and modern Deoxyribonucleic acid (DNA) to investigate molecular evolution in the Tasmanian devil. The Tasmanian devil is Australia's largest living marsupial carnivore and one of Tasmania's key tourism icons. Extinction in the wild will have long-term impacts on Tasmanian native ecosystems and economy. This study will provide critical genetic data and tools to monitor and prioritise conservation strategies, including insurance populations and disease suppression, aimed at preventing extinction. It will strengthen ongoing conservation programs carried out by the Save the Tasmanian Devil Program and will help publicise the plight of the devil both nationally and internationally.Read moreRead less
Assessing the risk of genetic pollution from Eucalyptus globulus and Corymbia plantations. We will provide the biological information necessary to assess the risk of genetic pollution of native eucalypt forest from plantations of Eucalyptus globulus and Corymbia torelliana. Key biological factors that can act as barriers to hybridisation including flowering time, pollen and seed dispersal distances, crossability, hybrid fitness and the potential for backcrossing will be identified and used to de ....Assessing the risk of genetic pollution from Eucalyptus globulus and Corymbia plantations. We will provide the biological information necessary to assess the risk of genetic pollution of native eucalypt forest from plantations of Eucalyptus globulus and Corymbia torelliana. Key biological factors that can act as barriers to hybridisation including flowering time, pollen and seed dispersal distances, crossability, hybrid fitness and the potential for backcrossing will be identified and used to develop strategies to reduce the risk of genetic pollution. The molecular differentiation between populations of the E. globulus complex, including plantations, will be studied to provide a genetic framework for the management of the genepool of this most important hardwood plantation species.Read moreRead less
Genetic impacts on eucalypt forest biodiversity. Australia is the centre of origin for most of the world's eucalypt genetic resources. This project will provide the research required to develop management strategies to reduce the risk of genetic pollution of this important genetic resource from the expanding eucalypt plantings in Australia. It will provide leading-edge science to better assess the risk and impact of genetic pollution not only on the native eucalypt gene pools per se but also on ....Genetic impacts on eucalypt forest biodiversity. Australia is the centre of origin for most of the world's eucalypt genetic resources. This project will provide the research required to develop management strategies to reduce the risk of genetic pollution of this important genetic resource from the expanding eucalypt plantings in Australia. It will provide leading-edge science to better assess the risk and impact of genetic pollution not only on the native eucalypt gene pools per se but also on the structure and biodiversity of the fungi, insect and vertebrate communities that are dependent on the eucalyptsRead moreRead less
Range dynamics and demographics of spatially structured populations under global change. Why are particular species present in some locations, but not others? This is a simple, fundamental ecological question, yet surprisingly, our answers on this point remain far from complete. Using an integrated, systems-based approach, we will determine the interplay between: (i) birth, death and movement rates, (ii) species interactions, and (iii) the constraints of the physical environment (temperature, ra ....Range dynamics and demographics of spatially structured populations under global change. Why are particular species present in some locations, but not others? This is a simple, fundamental ecological question, yet surprisingly, our answers on this point remain far from complete. Using an integrated, systems-based approach, we will determine the interplay between: (i) birth, death and movement rates, (ii) species interactions, and (iii) the constraints of the physical environment (temperature, rainfall, soil type), which determine the limits of species' ranges. Our models will provide Australian conservation managers with a novel, validated toolbox to explore the trade-offs, and synergies, inherent in trying to adapt to climate change and other stressors on biodiversity.Read moreRead less
Managing Tasmanian devil populations affected by the Devil Facial Tumour Disease. This project aims to put the science behind management options for wild Tasmanian devil populations affected by the Devil Facial Tumour Disease (DFTD), a new emerging wildlife disease that is decimating devil populations across large parts of Tasmania. DFTD behaves atypically compared with well-studied wildlife disease models; this project may result in important breakthroughs in our understanding of wildlife disea ....Managing Tasmanian devil populations affected by the Devil Facial Tumour Disease. This project aims to put the science behind management options for wild Tasmanian devil populations affected by the Devil Facial Tumour Disease (DFTD), a new emerging wildlife disease that is decimating devil populations across large parts of Tasmania. DFTD behaves atypically compared with well-studied wildlife disease models; this project may result in important breakthroughs in our understanding of wildlife diseases. Conservation outcomes of the project may slow the spread of the disease and in aiding population recovery. Devils are an iconic species with economic benefits for ecotourism and livestock farms, industries which are based in economically depressed rural regions.Read moreRead less
Applying macroecology to assist in the management of Kakadu National Park. The ecological integrity of Kakadu National Park is threatened by fires, weeds, and feral animals. To help tackle these problems, we will develop a cost-effective, culturally appropriate, park-wide monitoring system based on changes in the boundaries of closed forests, woodland and grassland. We will gauge the effect of broad-scale land management interventions, and predict the consequences of future change. The findings ....Applying macroecology to assist in the management of Kakadu National Park. The ecological integrity of Kakadu National Park is threatened by fires, weeds, and feral animals. To help tackle these problems, we will develop a cost-effective, culturally appropriate, park-wide monitoring system based on changes in the boundaries of closed forests, woodland and grassland. We will gauge the effect of broad-scale land management interventions, and predict the consequences of future change. The findings of this study will be transferable to other landscape settings in Australia and overseas. It will contribute to debates about the ecological consequences of current land management practices and how these compare with past Aboriginal land management.Read moreRead less
Info-chemicals for the environmentally sustainable management of autumn gum moth and scarab beetle pests of bluegum plantations. Insect pest control in Australian bluegum plantations currently relies on insecticides. Insecticides are incompatible with maintaining populations of native beneficial insects and achieving biotic regulation of pest populations. Info-chemicals offer ways of disrupting pest populations that are benign to beneficials because they only interfere with the responses of the ....Info-chemicals for the environmentally sustainable management of autumn gum moth and scarab beetle pests of bluegum plantations. Insect pest control in Australian bluegum plantations currently relies on insecticides. Insecticides are incompatible with maintaining populations of native beneficial insects and achieving biotic regulation of pest populations. Info-chemicals offer ways of disrupting pest populations that are benign to beneficials because they only interfere with the responses of the target insect. This project will pioneer the development of sex pheromone-based technologies for managing autumn gum moth and reveal potential applications of info-chemicals for managing scarab beetles. Application of info-chemical solutions to plantation pests will improve public perception of the industry and assist with forestry standard certification.Read moreRead less