Plastic pollution: new driver altering responses to variable environments. This project aims to determine how bisphenol A (BPA), which now represents a novel environmental driver, alters physiological responses of animals, and how it interacts with other environmental variables to alter ecological and evolutionary trajectories. Plastic pollution is a monumental global environmental and health problem, and Australia has one of the world’s highest exposures to BPA, a plastics leachate. This projec ....Plastic pollution: new driver altering responses to variable environments. This project aims to determine how bisphenol A (BPA), which now represents a novel environmental driver, alters physiological responses of animals, and how it interacts with other environmental variables to alter ecological and evolutionary trajectories. Plastic pollution is a monumental global environmental and health problem, and Australia has one of the world’s highest exposures to BPA, a plastics leachate. This project will use a new zebrafish gene knock-out model to show whether the effects of BPA are transferred between generations, and will establish an international collaboration, thereby increasing Australia's research capacity. Outcomes from the project are expected to benefit environmental management.Read moreRead less
Enhancement of fish stock by habitat manipulation in artificial coastal waterways. Human settlement significantly changes the spatial characteristics of natural coastal waterways. The value of artificial waterways, such as canals, as a habitat for fish is poorly known. We will evaluate the significance of artificial canals as a fish habitat, and test the effect of habitat modification by artificial reef installation on fish distribution and abundance. We will investigate whether artificial reefs ....Enhancement of fish stock by habitat manipulation in artificial coastal waterways. Human settlement significantly changes the spatial characteristics of natural coastal waterways. The value of artificial waterways, such as canals, as a habitat for fish is poorly known. We will evaluate the significance of artificial canals as a fish habitat, and test the effect of habitat modification by artificial reef installation on fish distribution and abundance. We will investigate whether artificial reefs enhance fish production in canals, rather than simply acting as fish aggregation devices. This research will address an important question in fisheries ecology and help formulate management guidelines for artificial waterways.Read moreRead less
Dynamic networks in a patchy landscape: will species interactions adjust to increased climatic extremes? This project addresses pressing questions on how increased climatic extremes will affect species diversity in arid Australia, building on the longest ecological dataset available for the continent's vast but fragile inland landscapes. Our tests of key ideas about strong interactions among species, their role in building resilient communities and conserving biodiversity, will generate consider ....Dynamic networks in a patchy landscape: will species interactions adjust to increased climatic extremes? This project addresses pressing questions on how increased climatic extremes will affect species diversity in arid Australia, building on the longest ecological dataset available for the continent's vast but fragile inland landscapes. Our tests of key ideas about strong interactions among species, their role in building resilient communities and conserving biodiversity, will generate considerable international interest, while our focus on interactions of species at water sources will address knowledge gaps to inform best practice in managing converted pastoral lands. The results will contribute to retaining healthy functioning ecosystems, and the vital production systems they support, as the global climate changes.Read moreRead less
Temperature-dependent toxicity of plant secondary compounds to mammalian herbivores. Changes in the toxicity of plant secondary compounds is an unexplored consequence of rises in ambient temperatures. Evidence from agricultural and laboratory studies suggests that temperature dependent toxicity can have major effects on the intake and metabolism of plant secondary metabolites by mammals. These effects are mediated by a decrease in liver metabolism and by the effects of plant secondary metabolite ....Temperature-dependent toxicity of plant secondary compounds to mammalian herbivores. Changes in the toxicity of plant secondary compounds is an unexplored consequence of rises in ambient temperatures. Evidence from agricultural and laboratory studies suggests that temperature dependent toxicity can have major effects on the intake and metabolism of plant secondary metabolites by mammals. These effects are mediated by a decrease in liver metabolism and by the effects of plant secondary metabolites on mitochondrial function which leads to greater heat production. The project will quantify the importance of temperature dependent toxicity and measures the changes in the cost of detoxification to better model the effects of climate change on marsupial herbivores.Read moreRead less
Plant-herbivore interactions: a model two-species system from northern Australia. The proposed research addresses a critical aspect of magpie goose ecology. Understanding the interaction between the birds and the bulbs is critical to respond effectively to past and threatened losses of important sedge habitats to sea level rise. This knowledge will inform management of the Kakadu World Heritage Site and an iconic waterfowl of great cultural and economic significance. In addition to their importa ....Plant-herbivore interactions: a model two-species system from northern Australia. The proposed research addresses a critical aspect of magpie goose ecology. Understanding the interaction between the birds and the bulbs is critical to respond effectively to past and threatened losses of important sedge habitats to sea level rise. This knowledge will inform management of the Kakadu World Heritage Site and an iconic waterfowl of great cultural and economic significance. In addition to their importance as a Gondwanan relic and sole member of the Family Anseranatidae, the species is an important food-source for Aboriginal people, and tourists travel to the Kakadu wetlands to witness huge dry season congregations.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE130100434
Funder
Australian Research Council
Funding Amount
$371,114.00
Summary
What fire regimes can maintain biodiversity in northern Australia's savannah landscapes, and how do we implement them? Inappropriate fire regimes (the frequency, intensity and size of bushfires) are causing ongoing declines in Australia's biodiversity, yet we have little understanding of the fire regimes that should be implemented. Focussing on Kakadu National Park in northern Australia, this project will develop optimal fire management strategies for conserving biodiversity.
Marine predators, marine parks and marine hotspots: is zoning an effective conservation tool in a changing environment? Southeast Australia is a marine hotspot in terms of climate change, and is an important habitat for seals, seabirds, sharks and other predators. This project will use state-of-the-art technology to assess their feeding requirements in relation to marine park zoning and the changing oceanographic environment.
The cost of a meal: life-history consequences of foraging mode in fur seals and sea lions. Australia's two fur seal species are currently experiencing population increases throughout their range as they recover from the over-exploitation of the commercial sealing era (18-19th centuries) whereas the Australian sea lion population is decreasing (or stable but low) throughout its range and is considered vulnerable. Understanding the mechanisms which determine foraging efficiency in fur seals and s ....The cost of a meal: life-history consequences of foraging mode in fur seals and sea lions. Australia's two fur seal species are currently experiencing population increases throughout their range as they recover from the over-exploitation of the commercial sealing era (18-19th centuries) whereas the Australian sea lion population is decreasing (or stable but low) throughout its range and is considered vulnerable. Understanding the mechanisms which determine foraging efficiency in fur seals and sea lions will have implications for the management of these species, which are likely to experience increasing interactions with fisheries activities. The results of this research will assist in the development of policies to ensure the environmentally sustainable use of marine resources. 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
Boxing clever: artificial nest boxes as a conservation and research tool. Saving endangered species increasingly requires proactive management. This project presents an innovative and practical solution to save an iconic Australian species, while also providing the scientific foundation for the development of a novel Australian-based commercial product that will be used to protect and restore Australian biodiversity.