Understanding the survival of forests under drought . Droughts are predicted to become more extreme in the near future, with potentially devastating impacts on Australian forest ecosystems. This project aims to address key knowledge gaps in our understanding of how plants tolerate extreme drought stress and utilise this new knowledge to improve vegetation models suitable for assessing ecosystem vulnerability. We will use innovative experimental methodology to determine the processes by which wat ....Understanding the survival of forests under drought . Droughts are predicted to become more extreme in the near future, with potentially devastating impacts on Australian forest ecosystems. This project aims to address key knowledge gaps in our understanding of how plants tolerate extreme drought stress and utilise this new knowledge to improve vegetation models suitable for assessing ecosystem vulnerability. We will use innovative experimental methodology to determine the processes by which water transport breaks down in roots, stems and leaves and the mechanisms governing recovery from severe drought stress. The project will provide a deeper understanding of drought tolerance in trees, improved forecasting of risks to native vegetation, and enhanced management of native forest resources. Read moreRead less
Phenotypic and adaptive responses to environmental change. This project aims to investigate how environmental change will effect coral reef fish by assessing adaptive responses in a model species. This project expects to generate new knowledge on the interplay between adaption and plasticity both within and across generations using novel experimental designs. Expected outcomes include improved models of fish acclimation and adaptation to environmental change and an enhanced evidence base to info ....Phenotypic and adaptive responses to environmental change. This project aims to investigate how environmental change will effect coral reef fish by assessing adaptive responses in a model species. This project expects to generate new knowledge on the interplay between adaption and plasticity both within and across generations using novel experimental designs. Expected outcomes include improved models of fish acclimation and adaptation to environmental change and an enhanced evidence base to inform the management of cumulative impacts. This will provide significant benefits to Australian and international communities that rely on fish for nutrition, economic and/or social value.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE230100141
Funder
Australian Research Council
Funding Amount
$444,300.00
Summary
Anticipating ecological shifts in subtropical marine ecosystems. This project aims to unravel the causes of abrupt ecological change in the subtropics and predict their future in warming seas. Uniting large-scale field observation and modelling in a novel multi-species framework, this project seeks to quantify how warming and species interactions combine to escalate change on subtropical reefs at different stages of tropicalisation. Expected outcomes include new insights into the factors that pr ....Anticipating ecological shifts in subtropical marine ecosystems. This project aims to unravel the causes of abrupt ecological change in the subtropics and predict their future in warming seas. Uniting large-scale field observation and modelling in a novel multi-species framework, this project seeks to quantify how warming and species interactions combine to escalate change on subtropical reefs at different stages of tropicalisation. Expected outcomes include new insights into the factors that promote stability or change along subtropical coasts in Australia and Japan, where the influx of tropical species already has dramatic consequences. By comparing dynamics in Australia with tropicalisation hotspots in Japan, this project expects to anticipate future ecological shifts and benefit strategic management.Read moreRead less
Identifying potential trade-offs of adapting to climate change. Climate change and marine heatwaves introduce strong, directional selection for heat tolerance which, in turn, alters the genetic composition and diversity of marine species. While this may facilitate adaptation to warmer conditions, reduced genetic diversity may limit resilience or cause maladaptation to additional stressors. This project will focus on habitat-forming kelps and will aim to both assess the negative consequences of r ....Identifying potential trade-offs of adapting to climate change. Climate change and marine heatwaves introduce strong, directional selection for heat tolerance which, in turn, alters the genetic composition and diversity of marine species. While this may facilitate adaptation to warmer conditions, reduced genetic diversity may limit resilience or cause maladaptation to additional stressors. This project will focus on habitat-forming kelps and will aim to both assess the negative consequences of rapid selection and to disentangle the mechanisms of climate adaptation. Through a powerful combination of controlled experiments on known genotypes and cutting-edge transcriptomic approaches, this project will transform our understanding of the adaptability of foundation species in a rapidly changing ocean.
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Coastal tropicalisation – adapting to novel ecosystems and trajectories. This project aims to quantify the impacts of a changing climate on key ecosystem functions of temperate reefs. As global temperate reefs respond to ocean warming, iconic and economically important kelp forests and associated fishes and invertebrates are being lost. Novel communities and never-before seen configurations of species are emerging in these systems. This project aims to characterise the new dynamics of these nove ....Coastal tropicalisation – adapting to novel ecosystems and trajectories. This project aims to quantify the impacts of a changing climate on key ecosystem functions of temperate reefs. As global temperate reefs respond to ocean warming, iconic and economically important kelp forests and associated fishes and invertebrates are being lost. Novel communities and never-before seen configurations of species are emerging in these systems. This project aims to characterise the new dynamics of these novel systems, and provide an understanding of how to maintain key ecosystem functions - primary productivity, fish production - that underpin the benefits that humans derive from our coastlines.Read moreRead less
Safeguarding coral reef fisheries for future food security. This Fellowship aims to address the vulnerability of coral reef fisheries in Australia and the Indo-Pacific by identifying fishery targets that benefit human nutrition and will persist despite declining coral habitats and rising water temperature. This project will advance knowledge on coral and fish responses to increasingly frequent marine heatwaves, using novel methodologies rooted in ecological modelling, experimental marine biology ....Safeguarding coral reef fisheries for future food security. This Fellowship aims to address the vulnerability of coral reef fisheries in Australia and the Indo-Pacific by identifying fishery targets that benefit human nutrition and will persist despite declining coral habitats and rising water temperature. This project will advance knowledge on coral and fish responses to increasingly frequent marine heatwaves, using novel methodologies rooted in ecological modelling, experimental marine biology and climate forecasting. Expected outcomes include (i) a comprehensive toolbox for improved management of coral reefs and associated fisheries in Australia and beyond, and (ii) an integrated socio-ecological model for predicting coral reef fishery responses under environmental change.Read moreRead less
Marine heatwaves drive loss of genetic diversity and selection in kelps. This project aims to unravel where and when marine heatwaves drive loss of genetic diversity and rapid directional selection in kelp forests. Although the devastating ecological impacts of marine heatwaves are well studied, empirical understanding of how marine heatwaves impact underlying evolutionary processes including adaptive capacity and resilience is lacking. This research will use a powerful combination of innovative ....Marine heatwaves drive loss of genetic diversity and selection in kelps. This project aims to unravel where and when marine heatwaves drive loss of genetic diversity and rapid directional selection in kelp forests. Although the devastating ecological impacts of marine heatwaves are well studied, empirical understanding of how marine heatwaves impact underlying evolutionary processes including adaptive capacity and resilience is lacking. This research will use a powerful combination of innovative heatwave analyses, cutting-edge genomics and physiological experiments to fill these knowledge gaps and represents a step change in our understanding of how kelp respond and adapt in multi-stressor seascapes. Results will pave the way for development of novel mitigation strategies to future-proof marine management. Read moreRead less
Understanding the impact of heat stress on cognition in a changing world. Our research will determine how anthropogenic climate change effects the ability of animals to process information in their environment. This research is significant because it directly addresses the growing issue of wildlife adaptation to climate change. If heat stress, reported widely in wildlife both in Australia and globally, impairs an animal's ability to respond to stimuli in its surrounding environment, then this ma ....Understanding the impact of heat stress on cognition in a changing world. Our research will determine how anthropogenic climate change effects the ability of animals to process information in their environment. This research is significant because it directly addresses the growing issue of wildlife adaptation to climate change. If heat stress, reported widely in wildlife both in Australia and globally, impairs an animal's ability to respond to stimuli in its surrounding environment, then this may cause lower reproductive success (eg lower predator detection rates) and population declines. We aim to identify critical temperature points beyond which the cognitive responses of animals decline rapidly - a significant finding for effective wildlife management priorities in the face of rapid climate change. Read moreRead less
Pushing the envelope: does range size limit eucalypt tolerance to warming? This project aims to characterise the biogeographic constraints on the physiological flexibility of eucalypts to accommodate climate warming. Do temperature tolerances of diverse taxa vary predictably with native geographic range sizes and climate of origin? In addressing this question, the project expects to generate new knowledge on the comparative physiological responses of diverse eucalypt taxa to warming and heat wav ....Pushing the envelope: does range size limit eucalypt tolerance to warming? This project aims to characterise the biogeographic constraints on the physiological flexibility of eucalypts to accommodate climate warming. Do temperature tolerances of diverse taxa vary predictably with native geographic range sizes and climate of origin? In addressing this question, the project expects to generate new knowledge on the comparative physiological responses of diverse eucalypt taxa to warming and heat waves using controlled-environment studies and a unique facility at Western Sydney University for heat wave studies of large trees. Expected outcomes include an enhanced capacity to predict carbon exchange and growth responses of native trees to climate warming over large geographic scales.Read moreRead less
Escalating the arms race: Understanding when and how trees get really tall. Australia's giant Eucalypt trees are an amazing phenomenon and resource; underpinning unique ecosystems, rich in timber, stored carbon, and animal habitat. While tree height generally arises via an evolutionary arms race for light, the race has escalated dramatically in some locations and species. Using a computational framework that simulates adaptation driven by size-structured competition, this project will quantify h ....Escalating the arms race: Understanding when and how trees get really tall. Australia's giant Eucalypt trees are an amazing phenomenon and resource; underpinning unique ecosystems, rich in timber, stored carbon, and animal habitat. While tree height generally arises via an evolutionary arms race for light, the race has escalated dramatically in some locations and species. Using a computational framework that simulates adaptation driven by size-structured competition, this project will quantify how distinct factors-including climate, recruitment, and disturbance-enhance the race for light and can thereby explain the origins of Australia's giant Eucalypt. With calibrated models of species evolution, coupled with targeted fieldwork and big data, this project clarifies key forces shaping present and future vegetation.Read moreRead less