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
Epigenetic effects of environmental thyroid disruption. Anthropogenic impacts increasingly disrupt hormone-mediated responses to environmental change. The project aims to determine the interactive effects of climate warming, light-at-night, and plastic pollution on thyroid hormone signalling, and test whether these effects are passed between generations epigenetically. Epigenetic effects of endocrine disruption are one of the most important emerging conservation threats. Mathematical modelling o ....Epigenetic effects of environmental thyroid disruption. Anthropogenic impacts increasingly disrupt hormone-mediated responses to environmental change. The project aims to determine the interactive effects of climate warming, light-at-night, and plastic pollution on thyroid hormone signalling, and test whether these effects are passed between generations epigenetically. Epigenetic effects of endocrine disruption are one of the most important emerging conservation threats. Mathematical modelling of experimental data will help to predict how animals respond to anthropogenic impacts, and to acquire the tools necessary to maintain ecosystem function and services. The project will therefore have environmental benefits, as well as social benefits stemming from international collaborations and training.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
How does the interaction between environmental drivers determine the impact of global change on animals? There is an urgent need to determine how vulnerable natural populations are to simultaneous changes in more than one environmental driver. This project will take an integrative approach, using molecular, physiological and ecological tools, to determine whether cellular responses to the interaction between UV-B radiation and temperature vary between populations, and within individuals over tim ....How does the interaction between environmental drivers determine the impact of global change on animals? There is an urgent need to determine how vulnerable natural populations are to simultaneous changes in more than one environmental driver. This project will take an integrative approach, using molecular, physiological and ecological tools, to determine whether cellular responses to the interaction between UV-B radiation and temperature vary between populations, and within individuals over time. This project will bridge the gap between physiology and ecology by testing whether molecular responses translate into fitness benefits for the organism to gain an understanding at a level that is relevant for conservation. Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE150100007
Funder
Australian Research Council
Funding Amount
$170,000.00
Summary
Metal speciation for complex studies in changing environments. Metal speciation for complex studies in changing environments: The Inductively Coupled Plasma Mass Spectrometer with a High Performance Liquid Chromatography front end (HPLC-ICP-MS) for metal speciation studies is a highly valuable extension of existing cutting edge infrastructure for geochemical research. Existing invertebrate culturing capacity will also enable unique opportunities for experimental studies driven by understanding m ....Metal speciation for complex studies in changing environments. Metal speciation for complex studies in changing environments: The Inductively Coupled Plasma Mass Spectrometer with a High Performance Liquid Chromatography front end (HPLC-ICP-MS) for metal speciation studies is a highly valuable extension of existing cutting edge infrastructure for geochemical research. Existing invertebrate culturing capacity will also enable unique opportunities for experimental studies driven by understanding metal speciation and uptake by organisms. This facility will be housed within a highly productive research environment providing new and novel capabilities to study abiotic and biotic interactions in changing environments.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
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
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.
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.
Unlocking telomere effects on life, death and fitness in a warming world. Few things in biology provoke such a strong desire for understanding as when adult death and fatal disease can be predicted early in life. A common factor linking early life stress, disease, ageing and time of death are telomeres, the protective regions at the end of each chromosome. This project aims to explicitly link telomere dynamics in free-living ectotherm populations with experimental approaches to advance our under ....Unlocking telomere effects on life, death and fitness in a warming world. Few things in biology provoke such a strong desire for understanding as when adult death and fatal disease can be predicted early in life. A common factor linking early life stress, disease, ageing and time of death are telomeres, the protective regions at the end of each chromosome. This project aims to explicitly link telomere dynamics in free-living ectotherm populations with experimental approaches to advance our understanding of parental and environmental effects on offspring telomeres and their effects later in life. This project will take advantage of one of the world’s longest datasets on ectotherm responses to climate to provide new knowledge of how telomeres affect fitness and the role that the environment plays.Read moreRead less