Significance and mechanisms of evaporative water loss control by endotherms. This project plans to examine the novel hypothesis that mammals and birds can control and minimise their evaporative water loss in dry environments. Water balance is fundamental for the survival of mammals and birds. As a large component of total water loss, evaporative water loss is particularly critical for species in arid habitats and areas undergoing desertification and other habitat modifications. Control of water ....Significance and mechanisms of evaporative water loss control by endotherms. This project plans to examine the novel hypothesis that mammals and birds can control and minimise their evaporative water loss in dry environments. Water balance is fundamental for the survival of mammals and birds. As a large component of total water loss, evaporative water loss is particularly critical for species in arid habitats and areas undergoing desertification and other habitat modifications. Control of water loss is a previously unappreciated ability in mammals and birds. Determining the mechanistic basis for evaporative homeostasis would fundamentally change our knowledge of animal function, and may help us to predict and understand the effects of environmental change on survival and distribution limits for Australian fauna.Read moreRead less
Why are fish shrinking as the climate warms? This project aims to uncover the mechanisms behind the temperature-size rule, a phenomenon causing fishes and other aquatic organisms to decline in size as the climate warms. Drawing on multidisciplinary expertise to test three competing theories, this project expects to identify the fundamental processes driving the temperature-size rule phenomenon. Expected outcomes include improved models to forecast the effects of global warming on fish and fisher ....Why are fish shrinking as the climate warms? This project aims to uncover the mechanisms behind the temperature-size rule, a phenomenon causing fishes and other aquatic organisms to decline in size as the climate warms. Drawing on multidisciplinary expertise to test three competing theories, this project expects to identify the fundamental processes driving the temperature-size rule phenomenon. Expected outcomes include improved models to forecast the effects of global warming on fish and fisheries. The new knowledge and predictive power should be of direct benefit to natural resource managers in the continuing effort to mitigate the negative impacts of climate change. This will guide policy and management decisions by enabling more accurate forecasts of the impacts of climate change on wild and cultured fishes.Read moreRead less
Vulnerability of Australian bats to white-nose syndrome. Australia's unique wildlife is inherently at risk from invasive novel pathogens. White-nose syndrome is an emerging fungal disease that has decimated bat populations across North America. This fungal disease is likely to soon jump continents and also seriously threaten Australia's bat fauna. This project aims to quantify the risk of exposure to this fungus and understand the sensitivity of Australian bat populations to white-nose syndrome ....Vulnerability of Australian bats to white-nose syndrome. Australia's unique wildlife is inherently at risk from invasive novel pathogens. White-nose syndrome is an emerging fungal disease that has decimated bat populations across North America. This fungal disease is likely to soon jump continents and also seriously threaten Australia's bat fauna. This project aims to quantify the risk of exposure to this fungus and understand the sensitivity of Australian bat populations to white-nose syndrome mortality. Expected outcomes include spatially-explicit, species-specific models of vulnerability to white-nose syndrome for bat populations across south-eastern Australia, essential for directing actions to prevent, detect and mitigate the impacts of this potentially catastrophic wildlife disease.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE170100824
Funder
Australian Research Council
Funding Amount
$372,000.00
Summary
Pre-natal communication in adaptation to hot climate. This project aims to reveal how birds programme their offspring for a warming world, by communicating acoustically with their embryos. Most animals, including humans, can hear external sounds before birth, but it is not known what function this plays. An Australian bird calls to its eggs at high ambient temperatures, which alters nestling growth and survival. This project will show the physiological effects involved and the consequences for a ....Pre-natal communication in adaptation to hot climate. This project aims to reveal how birds programme their offspring for a warming world, by communicating acoustically with their embryos. Most animals, including humans, can hear external sounds before birth, but it is not known what function this plays. An Australian bird calls to its eggs at high ambient temperatures, which alters nestling growth and survival. This project will show the physiological effects involved and the consequences for adaptation to heat in wild birds. This project will elucidate whether the global reduction in animal body size is an adaptive response to rising temperatures, and research the therapeutic benefits of pre-natal sounds.Read moreRead less
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 a region of opportunistic birds. Understanding how animal species respond behaviourally and physiologically to climatic variability is key to predicting how they will adapt to a changing climate. Australasia is home to a number of native and introduced species that breed across a range of climates and seasons. This project will establish collaborative infrastructure and a research network to systematically study and identify the constrain ....Reproductive plasticity and climate change: insights from a region of opportunistic birds. Understanding how animal species respond behaviourally and physiologically to climatic variability is key to predicting how they will adapt to a changing climate. Australasia is home to a number of native and introduced species that breed across a range of climates and seasons. This project will establish collaborative infrastructure and a research network to systematically study and identify the constraints and adaptations that birds have to adjust to a variable climate across Australasia. This large-scale comparative project will provide important insight into the globally observed patterns of reproductive failure and changes in breeding and migration times in birds, which have been related to a changing climate and pose a threat to biodiversity.Read moreRead less
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
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
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.
The evolution of breathing patterns in animals. Although breathing is usually regarding as a continuous process, many species voluntarily hold their breath for up to several hours at a time. This pattern of periodic breathing is shown by a range of animals including mammals, reptiles, and insects, yet the reasons why they hold their breath is unknown. This project will examine the evolution of breathing patterns in the context of climate and atmospheric conditions. The outcomes of this project w ....The evolution of breathing patterns in animals. Although breathing is usually regarding as a continuous process, many species voluntarily hold their breath for up to several hours at a time. This pattern of periodic breathing is shown by a range of animals including mammals, reptiles, and insects, yet the reasons why they hold their breath is unknown. This project will examine the evolution of breathing patterns in the context of climate and atmospheric conditions. The outcomes of this project will provide insight into the evolution of fundamental characteristic of animals (breathing), describe the role of climate in shaping how animals breathe, and demonstrate how animals will cope with climate change.Read moreRead less