Testing metabolic theories in ecology. There are striking similarities in the way plants and animals take up and use energy (metabolism), despite enormous variation in size and life-style. This project will make the first experimental comparison of the predictions of the two major theories for these broad patterns. The results will significantly progress this controversial and exciting field.
Discovery Early Career Researcher Award - Grant ID: DE200100490
Funder
Australian Research Council
Funding Amount
$426,742.00
Summary
Understanding infection tolerance to improve management of wildlife disease. This project aims to investigate tolerance (the ability to limit the detrimental effects of infection) as a key animal defence strategy against disease. It focuses on diseases in natural systems, using the devastating amphibian fungal skin disease, chytridiomycosis, as a model. Expected outcomes include improved understanding of the relative importance of tolerance and resistance, and insight into the key immune and phy ....Understanding infection tolerance to improve management of wildlife disease. This project aims to investigate tolerance (the ability to limit the detrimental effects of infection) as a key animal defence strategy against disease. It focuses on diseases in natural systems, using the devastating amphibian fungal skin disease, chytridiomycosis, as a model. Expected outcomes include improved understanding of the relative importance of tolerance and resistance, and insight into the key immune and physiologic mechanisms underlying variations in tolerance. Anticipated benefits include improved strategies for mitigating infectious wildlife diseases via identifying targets for therapeutic interventions, ecological management and assisted-evolution strategies. This project should also benefit amphibian conservation globally.Read moreRead less
Forecasting coral reef recovery with new data-driven dispersal models. This project aims to combine innovative mathematical methods and new genetic data to accurately predict the larval dispersal patterns of reef fish and corals. Larval dispersal is central to the ecology of coral reefs, and has vital implications for conservation. Most marine organisms spend their early life dispersing in the ocean, but our understanding of where these tiny larvae go is limited by sparse data and unvalidated mo ....Forecasting coral reef recovery with new data-driven dispersal models. This project aims to combine innovative mathematical methods and new genetic data to accurately predict the larval dispersal patterns of reef fish and corals. Larval dispersal is central to the ecology of coral reefs, and has vital implications for conservation. Most marine organisms spend their early life dispersing in the ocean, but our understanding of where these tiny larvae go is limited by sparse data and unvalidated models. Applied to extensive case-studies from Australia and across the western Pacific Ocean, these methods will be used to forecast and understand the recovery of fish and coral populations following severe disturbances. This will provide benefits such as enabling us to prioritise conservation actions in the aftermath of severe disturbances, including the catastrophic 2016 mass coral bleaching on the Great Barrier Reef.Read moreRead less
Rapid evolution, and the dynamics and stability of ecological communities. Population sizes of species go up and down and often we do not know why. This is a problem because changes in population size underpin more complex ecological change, and understanding why population sizes change affects our ability to manage environmental impacts, and threatened, harvested and pest species. The aim of this project is to discover how rapid evolution – evolution occurring over just a few generations – driv ....Rapid evolution, and the dynamics and stability of ecological communities. Population sizes of species go up and down and often we do not know why. This is a problem because changes in population size underpin more complex ecological change, and understanding why population sizes change affects our ability to manage environmental impacts, and threatened, harvested and pest species. The aim of this project is to discover how rapid evolution – evolution occurring over just a few generations – drives changes in population sizes of plants in Australian freshwater ecosystems. By focusing on this fundamental yet poorly understood process, our results promise to rewrite our understanding of the causes of change in ecological communities, while highlighting a unique and little studied component of Australia’s biota.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE140101389
Funder
Australian Research Council
Funding Amount
$318,898.00
Summary
Impacts on wildlife populations of infection by multiple, interacting pathogens and the implications for disease management. Simultaneous infection by multiple pathogens is common in nature and interactions among pathogens within a host can profoundly alter the susceptibility of hosts to infection, disease severity and the probability of further transmission. This project aims to understand the consequences of these interactions on both wildlife populations and the communities of pathogens that ....Impacts on wildlife populations of infection by multiple, interacting pathogens and the implications for disease management. Simultaneous infection by multiple pathogens is common in nature and interactions among pathogens within a host can profoundly alter the susceptibility of hosts to infection, disease severity and the probability of further transmission. This project aims to understand the consequences of these interactions on both wildlife populations and the communities of pathogens that infect them. This knowledge will improve our ability to manage disease in wild populations, which is critical for protecting people, livestock and species of conservation concern from emerging disease threats. The application of these findings to koalas will enhance the efficiency and cost-effectiveness of disease management and improve long term population persistence.Read moreRead less
Outfoxing the fox: new cost-effective ways to protect threatened species. This project aims to address the damage caused by invasive foxes by applying new methods of protection for threatened species. This project expects to generate new knowledge in the areas of conservation biology and invasive species management by comparing the effectiveness of fox control strategies for improving the population viability of declining freshwater turtles. Expected outcomes of this project include a community- ....Outfoxing the fox: new cost-effective ways to protect threatened species. This project aims to address the damage caused by invasive foxes by applying new methods of protection for threatened species. This project expects to generate new knowledge in the areas of conservation biology and invasive species management by comparing the effectiveness of fox control strategies for improving the population viability of declining freshwater turtles. Expected outcomes of this project include a community-based conservation model that prevents turtle extinctions in south-eastern Australia at considerable cost savings. Significant benefits include improved management of the impacts of invasive species, and restoration of ecosystem services provided by the scavenging role of freshwater turtles for maintaining water quality.Read moreRead less
Understanding the effects of individual variation on population dynamics. Recent empirical studies have shown that trait variation among individuals in a population can have a significant impact on population dynamics. Given the considerable resources devoted to managing populations in Australia, it is vital individual variation be understood. This project will use the tools of modern probability theory to investigate the effect of trait variation on population-level quantities, such as the prob ....Understanding the effects of individual variation on population dynamics. Recent empirical studies have shown that trait variation among individuals in a population can have a significant impact on population dynamics. Given the considerable resources devoted to managing populations in Australia, it is vital individual variation be understood. This project will use the tools of modern probability theory to investigate the effect of trait variation on population-level quantities, such as the probability of extinction and the long term equilibrium level. This work will lead to better strategies for managing invasive diseases and pests, thus helping to protect Australia's biodiversity. The methods developed will be applicable to areas beyond population dynamics.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE140100505
Funder
Australian Research Council
Funding Amount
$394,620.00
Summary
Is plant organisation the fountain of eternal youth? The decline in performance at advanced ages, senescence, affects life quality, lifespan and productivity. It is believed that this phenomenon is universal, including all species from microbes to humans. Yet, some plants do not exhibit senescence. This project will identify the mechanisms that enable plants to escape senescence. Using a unique global demographic database, the project will determine whether, how and when senescence has evolved a ....Is plant organisation the fountain of eternal youth? The decline in performance at advanced ages, senescence, affects life quality, lifespan and productivity. It is believed that this phenomenon is universal, including all species from microbes to humans. Yet, some plants do not exhibit senescence. This project will identify the mechanisms that enable plants to escape senescence. Using a unique global demographic database, the project will determine whether, how and when senescence has evolved across 850 plant species. It will also experimentally test how drought, nutrients and resprouting affect senescence in two mallee Eucalyptus species in the Simpson Desert. This research will provide new insights into the evolution of senescence and will elucidate how some plants escape a supposedly unavoidable fate.Read moreRead less
A stitch in time: evidence-based strategy to keep platypus from extinction. This project aims to assess the status of the iconic platypus, identified as ‘near-threatened’ in 2014. The project’s multidisciplinary approach plans to compare regulated and unregulated rivers to investigate metapopulation structure (via physical and genetic tagging), current condition and future adaptability of the species, as well as other threats and habitat quality. The project also links vulnerability of platypus ....A stitch in time: evidence-based strategy to keep platypus from extinction. This project aims to assess the status of the iconic platypus, identified as ‘near-threatened’ in 2014. The project’s multidisciplinary approach plans to compare regulated and unregulated rivers to investigate metapopulation structure (via physical and genetic tagging), current condition and future adaptability of the species, as well as other threats and habitat quality. The project also links vulnerability of platypus populations to conservation actions that reduce extinction risk, through rigorous decision analyses. It is anticipated that the project will deliver implementable conservation actions at relevant scales.Read moreRead less
Population fluctuations: models, mechanisms and management. Changes in plant populations lead to extinctions and invasions in Australia and globally. The project will determine the drivers of plant population change and provide new tools to enable better population management.