Testing our knowledge on the dawn of animal life: evidence from the fossil record against modern ecological and morphological analogues. The Cambrian 'Explosion', half a billion years ago, is regarded as one of the most important events in the history of the Earth, when most major animal groups first appear in the rock record, and for which South Australia has recently become a significant source of spectacular fossils. However, important questions remain regarding their Ediacaran roots, the spe ....Testing our knowledge on the dawn of animal life: evidence from the fossil record against modern ecological and morphological analogues. The Cambrian 'Explosion', half a billion years ago, is regarded as one of the most important events in the history of the Earth, when most major animal groups first appear in the rock record, and for which South Australia has recently become a significant source of spectacular fossils. However, important questions remain regarding their Ediacaran roots, the speed of evolution at the time, and the environments in which the radiation took place. Studying the fossil evidence in the light of present-day ecological frameworks, and in comparison with modern behavioural and morphological analogues, as well as living relatives, can help us better assess our understanding of this first radiation of animals.Read moreRead less
Predicting invertebrate life cycles under variable climates. This project seeks to characterise and predict the responses of invertebrates to climate variability and climate change. Alterations to the developmental trajectory are a major way that organisms adapt their life cycles to climatic variability. Many invertebrates avoid extremes of heat, cold and dry by entering a quiescent or diapause state, often at the egg stage. This project plans to apply novel high-throughput methods for character ....Predicting invertebrate life cycles under variable climates. This project seeks to characterise and predict the responses of invertebrates to climate variability and climate change. Alterations to the developmental trajectory are a major way that organisms adapt their life cycles to climatic variability. Many invertebrates avoid extremes of heat, cold and dry by entering a quiescent or diapause state, often at the egg stage. This project plans to apply novel high-throughput methods for characterising developmental patterns in the eggs of invertebrates in conjunction with microclimate models and modern phylogenetic methods to understand and predict responses to climatic variability. The methods are expected to be transferable to other invertebrates and may lead to breakthroughs in pest management and conservation.Read moreRead less
Mechanisms of colour production and the evolution of animal signals. This project aims to reveal how diverse colours are produced in reptiles and the information these colours convey about individual health, condition and performance. The project evaluates how stress affects both pigment deposition and the nano-structure of cells and tissues, which together produce colour. By comparing similar colours generated by two entirely different classes of pigment (carotenoids and pteridines), this proje ....Mechanisms of colour production and the evolution of animal signals. This project aims to reveal how diverse colours are produced in reptiles and the information these colours convey about individual health, condition and performance. The project evaluates how stress affects both pigment deposition and the nano-structure of cells and tissues, which together produce colour. By comparing similar colours generated by two entirely different classes of pigment (carotenoids and pteridines), this project will provide new insights into the evolution of animal coloration, and will significantly enhance our understanding of pteridines, one of the most prevalent but least understood classes of pigment in vertebrates.Read moreRead less
Unlocking the paradox of imperfect mimicry. This project aims to resolve why some mimics resemble their models closely, whereas others are only superficially similar. The existence of imperfect mimics makes understanding the biology of mimicry difficult. This project addresses the difficulty by evaluating competing hypotheses. It will combine morphometrics, colourmetrics and phylogenomics with predator behaviour across several independent lineages of mimetic arthropods. Predicted outcomes includ ....Unlocking the paradox of imperfect mimicry. This project aims to resolve why some mimics resemble their models closely, whereas others are only superficially similar. The existence of imperfect mimics makes understanding the biology of mimicry difficult. This project addresses the difficulty by evaluating competing hypotheses. It will combine morphometrics, colourmetrics and phylogenomics with predator behaviour across several independent lineages of mimetic arthropods. Predicted outcomes include advancing the understanding of mimicry by distinguishing between competing hypotheses. The project will generate open access genomic, morphological and behavioural databases for the scientific and public communities.Read moreRead less
Resolving the threat of ocean deoxygenation to coral resilience. This project aims to uncover the role low oxygen plays in shaping healthy corals over space and time. Climate change and land use development are rapidly deoxygenating shallow water coral reefs, yet we have no knowledge of how less oxygen availability affects critical life history factors that govern coral resilience: growth, reproduction, and stress tolerance. This project unites a multidisciplinary team of experts to, for the fir ....Resolving the threat of ocean deoxygenation to coral resilience. This project aims to uncover the role low oxygen plays in shaping healthy corals over space and time. Climate change and land use development are rapidly deoxygenating shallow water coral reefs, yet we have no knowledge of how less oxygen availability affects critical life history factors that govern coral resilience: growth, reproduction, and stress tolerance. This project unites a multidisciplinary team of experts to, for the first time, couple advanced oxygen sensing, metabolic physiology, coral reproductive and stress biology to transform our understanding of oxygen thresholds that are diagnostic of reduced coral competitive fitness across life stages (adults, juveniles, larvae), needed to improve coral reef ecosystem management.Read moreRead less
A paradigm shift for predictions of freshwater harmful cyanobacteria blooms. This project aims to advance model predictions to generate novel insights into the triggers of freshwater harmful cyanobacteria blooms. Current models are poorly adapted for this purpose because they fail to account for antecedent environmental forcing. The project is expected to create new knowledge of cyanobacteria dynamics from simulating the adaptive responses of individual cyanobacteria cells, colonies or filaments ....A paradigm shift for predictions of freshwater harmful cyanobacteria blooms. This project aims to advance model predictions to generate novel insights into the triggers of freshwater harmful cyanobacteria blooms. Current models are poorly adapted for this purpose because they fail to account for antecedent environmental forcing. The project is expected to create new knowledge of cyanobacteria dynamics from simulating the adaptive responses of individual cyanobacteria cells, colonies or filaments to temperature, light and nutrient history. Three field studies will be used to validate a new individual based model. The outcomes of this project will be valuable for managing freshwater ecosystems that are increasingly subject to blooms in a warming climate, and for testing suitable mitigation and control strategies.Read moreRead less
Quantifying kelp carbon and nutrient flows for nature-based solutions . This fellowship aims to resolve carbon removal and nutrient mitigation potential of Australia’s kelp forests now and in future. It will create new understanding of the ecosystem services provided by the Great Southern Reef, and the capacity of kelp forests to provide nature-based solutions to reduce emissions and improve coastal water quality. Using a combination of global models and ecological experiments on kelp forests an ....Quantifying kelp carbon and nutrient flows for nature-based solutions . This fellowship aims to resolve carbon removal and nutrient mitigation potential of Australia’s kelp forests now and in future. It will create new understanding of the ecosystem services provided by the Great Southern Reef, and the capacity of kelp forests to provide nature-based solutions to reduce emissions and improve coastal water quality. Using a combination of global models and ecological experiments on kelp forests and their replacement ecosystem states, the fellowship will predict changes in function with warming. This information is critical to determine net ecosystem mitigation potential and will significantly advance our understanding of the potential of kelp forests to generate co-benefits while conserving biodiversity. Read moreRead less
Climate change, larval dispersal and patterns of connectivity in coral metapopulations. Patterns of connectivity among coral populations are virtually unknown and these patterns are likely to change with changing climate. This project will test how temperature and pH will change patterns of coral dispersal in order to assist the design of an effective marine reserve network throughout the Great Barrier Reef.
Creating coolspots: eco-engineering heat-resistant intertidal communities. This project aims to identify structural characteristics of marine intertidal habitat patches, formed by seaweeds and shellfish, that protect associated species from thermal extremes. This project will generate new knowledge about how thermally sensitive intertidal species can persist in stressful environments. Expected outcomes of this project
include new approaches for building heat-tolerant ecological communities on co ....Creating coolspots: eco-engineering heat-resistant intertidal communities. This project aims to identify structural characteristics of marine intertidal habitat patches, formed by seaweeds and shellfish, that protect associated species from thermal extremes. This project will generate new knowledge about how thermally sensitive intertidal species can persist in stressful environments. Expected outcomes of this project
include new approaches for building heat-tolerant ecological communities on coastal infrastructure, and improved tools for predicting the response of intertidal seaweeds and animals to environmental change. The results of this project will benefit coastal management by identifying conservation and rehabilitation strategies that maximise the
resilience of coastal ecosystems to environmental change.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE190100692
Funder
Australian Research Council
Funding Amount
$414,814.00
Summary
Regime shifts from kelp forests to turfs: drivers, resilience and future. This project aims to apply a comparative experimental and analytical approach to quantify linkages among multiple stressors driving kelp forest loss and expansion of turfs across three continents. Transformations of kelp forests to turf reefs are associated with a profound loss of ecological productivity and function, with significant impacts for societies reliant on the biodiversity and functioning of kelp ecosystems. Fie ....Regime shifts from kelp forests to turfs: drivers, resilience and future. This project aims to apply a comparative experimental and analytical approach to quantify linkages among multiple stressors driving kelp forest loss and expansion of turfs across three continents. Transformations of kelp forests to turf reefs are associated with a profound loss of ecological productivity and function, with significant impacts for societies reliant on the biodiversity and functioning of kelp ecosystems. Field and laboratory experiments will be used to develop and test ‘green gravel’, a novel restoration tool that aims to overcome reinforcing feedbacks (lack spores and hard substrate) preventing recovery of kelp forests. This will provide significant benefits by identifying solutions to address loss of kelp forests in Australia and globally.Read moreRead less