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Movement patterns and behavioural strategies of Estuarine Crocodiles: A long-term remote monitoring study using an underwater acoustic array. The on-going recovery of the estuarine crocodile population is creating a paradox for Australians. Although a salient species, an iconic animal, and a firm tourist attraction, estuarine crocodiles pose a significant risk to the public. Knowledge of where crocodiles go, what they do when they get there, and why they select particular habitats at certain tim ....Movement patterns and behavioural strategies of Estuarine Crocodiles: A long-term remote monitoring study using an underwater acoustic array. The on-going recovery of the estuarine crocodile population is creating a paradox for Australians. Although a salient species, an iconic animal, and a firm tourist attraction, estuarine crocodiles pose a significant risk to the public. Knowledge of where crocodiles go, what they do when they get there, and why they select particular habitats at certain times is critical for sustaining the Australian crocodile population, whilst ensuring public safety. This long term study will utilise the latest advancement in underwater acoustic technology to monitor the behavioural and physiological strategies used by estuarine crocodiles in occupying critical habitats, providing vital information for resource managers and policy makers. Read moreRead less
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
Scaling of structure, function and energetics of the vertebrate cardiovascular system. The hearts of mammals, reptiles and fish do different amounts of work, depending on the animal’s metabolic rate and body size. This project attempts to understand why hearts are the size and thickness that they are, and whether this results in minimising the work necessary to satisfy the requirements of the animal.
The evolution of biological scaling. This project aims to understand why so few biological traits scale proportionally with body size. In contrast to previous mechanistic studies of this longstanding question, the problem will be approached from an evolutionary viewpoint, using artificial selection to engineer animals in which biological scaling laws are either broken or enhanced. By measuring the consequences of this for fitness, the project will provide a new understanding of how organismal si ....The evolution of biological scaling. This project aims to understand why so few biological traits scale proportionally with body size. In contrast to previous mechanistic studies of this longstanding question, the problem will be approached from an evolutionary viewpoint, using artificial selection to engineer animals in which biological scaling laws are either broken or enhanced. By measuring the consequences of this for fitness, the project will provide a new understanding of how organismal size and physiology evolve in nature. The approach should provide significant benefits to our understanding of the role of genetic constraints in hindering or facilitating biological adaptation, furthering our understanding of the capacity of animals to respond to environmental change.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
Discovery Early Career Researcher Award - Grant ID: DE160101408
Funder
Australian Research Council
Funding Amount
$372,000.00
Summary
Key mammalian survival strategies in a rapidly changing environment. The aim of this project is to quantify behavioural and physiological traits in mammals that are crucial for survival in a changing environment. It aspires to identify the most influential habitat and climatic factors that determine the relationship between individual foraging effort and energy-saving mechanisms. Understanding how individuals manage their daily energy needs – a crucial aspect of an animal’s life history – may pr ....Key mammalian survival strategies in a rapidly changing environment. The aim of this project is to quantify behavioural and physiological traits in mammals that are crucial for survival in a changing environment. It aspires to identify the most influential habitat and climatic factors that determine the relationship between individual foraging effort and energy-saving mechanisms. Understanding how individuals manage their daily energy needs – a crucial aspect of an animal’s life history – may provide significant understanding of how individuals survive to reproduce and ultimately sustain thriving populations. This novel scientific knowledge may enable managers of protected areas and threatened species in Australia and worldwide to develop informed policies to ensure positive interactions between natural and human systems and to sustain biodiversity.Read moreRead less
Future Keepers: impacts of climate change on ecosystem function providers. The aim of this project is to predict how key ecosystem service providers may change under resource limitation and thermal stress. The project seeks to assess how common species respond to climatic fluctuations and resource limitations when competing for resources in familiar and novel environments along six biogeographic transects throughout Australia. In combination with hypothesis-driven field, laboratory and transplan ....Future Keepers: impacts of climate change on ecosystem function providers. The aim of this project is to predict how key ecosystem service providers may change under resource limitation and thermal stress. The project seeks to assess how common species respond to climatic fluctuations and resource limitations when competing for resources in familiar and novel environments along six biogeographic transects throughout Australia. In combination with hypothesis-driven field, laboratory and transplant experiments, citizen science will be used to create a longitudinal data set of the constraints put on dominant and functionally important species. The project also seeks to enable more robust forecasting of biological responses to environmental change by integrating both empirical and theoretical capabilities.Read moreRead less
Coping with forest fires: is mammalian torpor a crucial survival strategy? Forest fires result in habitat degradation and can kill native mammals. Currently little is known about the behaviour of individual mammals during and after fires. This project will generate the first quantitative information worldwide about behavioural and physiological responses of small mammals to fire, and test whether use of torpor increases survival.
Extreme acid tolerance: Overcoming the challenges of life at low pH. This project aims to investigate tolerance to low pH freshwaters, focusing on the mechanisms that underpin acid tolerance, physiological plasticity, the interactions between low pH and other environmental variables (e.g. temperature), and the costs and/or trade-offs to living in such physiologically challenging environments. Low pH waters are toxic to most animals, yet some freshwater vertebrates have managed to colonise some o ....Extreme acid tolerance: Overcoming the challenges of life at low pH. This project aims to investigate tolerance to low pH freshwaters, focusing on the mechanisms that underpin acid tolerance, physiological plasticity, the interactions between low pH and other environmental variables (e.g. temperature), and the costs and/or trade-offs to living in such physiologically challenging environments. Low pH waters are toxic to most animals, yet some freshwater vertebrates have managed to colonise some of the lowest pH environments on Earth. In our rapidly changing world, this study is expected to provide an important fundamental understanding of the capacity of some organisms to flourish at environmental extremes and their ability to respond to increased variability both within and between environmental stressors.Read moreRead less
Reproductive plasticity and climate change: insights from an opportunistic breeder. Across the globe, birds are struggling to optimise their reproductive timing and investment in a changing and unpredictable climate. This project will use the highly adaptable and opportunistic Australian zebra finch to develop an understanding of how birds tailor their behaviour and physiology to breed across a range of conditions.