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Discovery Early Career Researcher Award - Grant ID: DE160100429
Funder
Australian Research Council
Funding Amount
$367,000.00
Summary
Unravelling nickel biopathways in tropical hyperaccumulator plants. This project aims to unravel the ways in which hyperaccumulators work. Hyperaccumulators are plants that have the remarkable ability to concentrate up to six per cent nickel in their leaves and up to 25 per cent in their sap. These plants can be used in phytomining – a new technology to recover nickel from mining waste or contaminated land by growing and harvesting these plants and extracting nickel from their biomass. This proj ....Unravelling nickel biopathways in tropical hyperaccumulator plants. This project aims to unravel the ways in which hyperaccumulators work. Hyperaccumulators are plants that have the remarkable ability to concentrate up to six per cent nickel in their leaves and up to 25 per cent in their sap. These plants can be used in phytomining – a new technology to recover nickel from mining waste or contaminated land by growing and harvesting these plants and extracting nickel from their biomass. This project seeks to understand how the plants accumulate nickel by using tracers and synchrotron techniques to follow the pathways of nickel from the soil into the plants. This knowledge may help us to optimise agronomic processes affecting nickel uptake to enable successful phytomining.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE190100142
Funder
Australian Research Council
Funding Amount
$396,000.00
Summary
Elemental diagnostic of coral resilience to future reef climates. This project aims to integrate elemental stoichiometry, bio-elemental imaging and metabolomics to develop a common ‘elemental currency’ as an entirely new diagnostic of coral fitness. Coral reefs generate invaluable ecosystem services, but are on the verge of global collapse. Efforts to resolve coral traits that promote ecological resilience have been unable to integrate biological and environmental complexities of reef systems in ....Elemental diagnostic of coral resilience to future reef climates. This project aims to integrate elemental stoichiometry, bio-elemental imaging and metabolomics to develop a common ‘elemental currency’ as an entirely new diagnostic of coral fitness. Coral reefs generate invaluable ecosystem services, but are on the verge of global collapse. Efforts to resolve coral traits that promote ecological resilience have been unable to integrate biological and environmental complexities of reef systems into a unifying diagnostic of reef health. Natural extremes will provide the platform to identify key metabolic traits vital for future survival, to establish adaptive elemental signatures that can scale from organism to ecosystem. The project is expected to enhance capacity of marine managers and reef stakeholders to effectively manage and safeguard Australia’s reefs and the cultural and ecosystems.Read moreRead less
Heterogeneity and ecosystem function: The role of microphytobenthos and macrofauna in inducing spatial variability in biogeochemical processes and fluxes. Human disturbances such as eutrophication (nutrient enrichment) increasingly threaten the sustainable use of Australia's coastal seas. Management of threats such as eutrophication are usually based on observations at large spatial scales, but ecological processes underpinning nutrient dynamics occur at much smaller scales. This multi-disciplin ....Heterogeneity and ecosystem function: The role of microphytobenthos and macrofauna in inducing spatial variability in biogeochemical processes and fluxes. Human disturbances such as eutrophication (nutrient enrichment) increasingly threaten the sustainable use of Australia's coastal seas. Management of threats such as eutrophication are usually based on observations at large spatial scales, but ecological processes underpinning nutrient dynamics occur at much smaller scales. This multi-disciplinary study will examine the relationship between processes mediated by small organisms (microscopic algae and burrowing animals), and large-scale nutrient dynamics pattern on sheltered coasts. Modern technologies will be used for monitoring the micro-scale processes, allowing models to be constructed to benefit both scientists and policy-makers alike.Read moreRead less
The effect of dissolved organic matter on the toxicity and bioavailability of metals in tropical freshwater ecosystems. Mine waste materials in tropical Australia, including historical, current and future operations, represent one of the threats to the quality and biodiversity of tropical freshwater ecosystems. Dissolved organic carbon (DOC) is thought to influence metal toxicity. In order to adequately understand the risks of priority metals and metalloids from mining and other activities (eg. ....The effect of dissolved organic matter on the toxicity and bioavailability of metals in tropical freshwater ecosystems. Mine waste materials in tropical Australia, including historical, current and future operations, represent one of the threats to the quality and biodiversity of tropical freshwater ecosystems. Dissolved organic carbon (DOC) is thought to influence metal toxicity. In order to adequately understand the risks of priority metals and metalloids from mining and other activities (eg. urban development) to tropical freshwater ecosystems, it is essential that the role of DOC is quantified. The outcomes of this project will provide improved metal risk assessment methodologies; quantitative understanding of the relationship between DOC and the bioavailability and toxicity of key metals such arsenic, aluminium, cadmium, copper, uranium and zinc.Read moreRead less
The role of early life history on the survival of coral reef fishes - opening the Black Box. A fundamental unanswered question in marine ecology and fisheries management is - what influences the number of individuals that survive the larval phase to join a reef population? Theoretical studies show that small changes in the quality of offspring can lead to large changes in the numbers surviving the larval phase. What aspects of offspring quality determine who survives is largely unknown. We use ....The role of early life history on the survival of coral reef fishes - opening the Black Box. A fundamental unanswered question in marine ecology and fisheries management is - what influences the number of individuals that survive the larval phase to join a reef population? Theoretical studies show that small changes in the quality of offspring can lead to large changes in the numbers surviving the larval phase. What aspects of offspring quality determine who survives is largely unknown. We use a multidisciplinary approach to explore what influences the quality of offspring spawned by adults, and whether offspring traits prior to or at hatching determine the identity of individuals that survive to join the reproductive population.Read moreRead less
LARVAL RETENTION AND CONNECTIVITY IN CORAL REEF FISH POPULATIONS: A MULTI-TECHNIQUE APPROACH. A key unanswered question in marine ecology and fisheries management is - are planktonic juveniles retained within or transported among populations? The only three techniques that can potentially quantify larval dispersal distances are genetic markers, natural chemical signatures and applied chemical marks. This project combines, for the first time, all three techniques to measure the scale of disper ....LARVAL RETENTION AND CONNECTIVITY IN CORAL REEF FISH POPULATIONS: A MULTI-TECHNIQUE APPROACH. A key unanswered question in marine ecology and fisheries management is - are planktonic juveniles retained within or transported among populations? The only three techniques that can potentially quantify larval dispersal distances are genetic markers, natural chemical signatures and applied chemical marks. This project combines, for the first time, all three techniques to measure the scale of dispersal in two coral reef fish species. The relative importance of retention and connectivity will be measured, from a large scale encompassing different regions (Great Barrier Reef and Papua New Guinea) to a small scale focussing on individual reefs.Read moreRead less
Forensic entomology and time of death estimation in Victoria. Assessing time of death is a notoriously difficult, yet critical component of homicide investigations. Forensic entomology can provide reliable death time estimates using detailed knowledge of the ecology and life-history characteristics of local carrion insect species. However, these data are largely unavailable for Victoria and elsewhere on the eastern Australian seaboard. This project will measure growth rates of carrion insect ....Forensic entomology and time of death estimation in Victoria. Assessing time of death is a notoriously difficult, yet critical component of homicide investigations. Forensic entomology can provide reliable death time estimates using detailed knowledge of the ecology and life-history characteristics of local carrion insect species. However, these data are largely unavailable for Victoria and elsewhere on the eastern Australian seaboard. This project will measure growth rates of carrion insect larvae, investigate carrion insect ecology in different habitats, and describe the larval morphology of key species. We will also investigate the efficacy of a new method for estimating time of death using corpse chemistry.Read moreRead less
The evolution of cooperative communication. This interdisciplinary project will provide a broad understanding of communication in a model ecological system involving ants, lycaenid butterflies, and host-plants. The project will reveal the nature of the chemical signals used to communicate, and their role in the origin, maintenance, and loss of mutualistic and parasitic associations.
The origins of gender. This project intends to address how the evolutionary phenomena of intra-sexual competition and inter-sexual conflict interact with economic circumstances to shape gendered behaviour and attitudes. These phenomena are important in evolution, economics, psychology and sociology, with implications for the economy and for the welfare of women and men. The project predicts that gender-related culture arises, partially, out of mating market dynamics. The research crosses traditi ....The origins of gender. This project intends to address how the evolutionary phenomena of intra-sexual competition and inter-sexual conflict interact with economic circumstances to shape gendered behaviour and attitudes. These phenomena are important in evolution, economics, psychology and sociology, with implications for the economy and for the welfare of women and men. The project predicts that gender-related culture arises, partially, out of mating market dynamics. The research crosses traditional boundaries between biology and economics to investigate the forces giving rise to gendered behaviour and resulting patterns of marriages, violence, political preferences and occupational choices. The project may provide new insights into the links between gender and violence, within-family conflicts, and gender roles in the home and workplace.Read moreRead less
Understanding the crowd - improving accuracy in collective motion theory. This project intends to develop more accurate methods for predicting the motions of large groups. The amazing coordinated movements seen in large groups of animals are governed by simple interactions between individuals, termed rules of motion. In 2011, techniques were developed to estimate individual rules of motion from video tracking data. The project plans to build on these breakthroughs by using advanced tracking, mod ....Understanding the crowd - improving accuracy in collective motion theory. This project intends to develop more accurate methods for predicting the motions of large groups. The amazing coordinated movements seen in large groups of animals are governed by simple interactions between individuals, termed rules of motion. In 2011, techniques were developed to estimate individual rules of motion from video tracking data. The project plans to build on these breakthroughs by using advanced tracking, modelling and analysis to systematically determine the influence that different movement parameters have on rules of motion and how rules of motion are affected by group size. It aims to develop a framework for analysis and modelling built on the visual perception of individuals.Read moreRead less