Evolution on the edge: a model system for evolution on invasion fronts. This project aims to develop a shared experimental platform, using the well-studied ecological model, Daphnia, to test emergent predictions about evolution on invasion fronts. Evolution happens rapidly on invasion fronts, accelerating the speed and potentially the damage caused by an invasion. By manipulating invasions through an experimental landscape, the project aims to answer currently infeasible questions, including whe ....Evolution on the edge: a model system for evolution on invasion fronts. This project aims to develop a shared experimental platform, using the well-studied ecological model, Daphnia, to test emergent predictions about evolution on invasion fronts. Evolution happens rapidly on invasion fronts, accelerating the speed and potentially the damage caused by an invasion. By manipulating invasions through an experimental landscape, the project aims to answer currently infeasible questions, including whether pathogens become more virulent as they spread, and whether evolutionary trade-offs place limits on spread rate. This work would dramatically improve our understanding of biological invasions and may have implications for the management of phenomena ranging from emergent diseases to invasive pests and malignant growths.Read moreRead less
Eco-evolutionary drivers of niche dynamics in invasive weeds. The project aims to understand how and why invasive species become invasive. Many exotic species are known to expand their ecological niches in their novel range, exploiting habitats that ancestral populations never used. Using a unique approach that combines field transplant and quantitative genetics experiments, this study will identify the drivers of niche expansion in invasive Australian capeweed, and predict if the invasive popul ....Eco-evolutionary drivers of niche dynamics in invasive weeds. The project aims to understand how and why invasive species become invasive. Many exotic species are known to expand their ecological niches in their novel range, exploiting habitats that ancestral populations never used. Using a unique approach that combines field transplant and quantitative genetics experiments, this study will identify the drivers of niche expansion in invasive Australian capeweed, and predict if the invasive populations are likely to further expand their niches. By delivering key insights into mechanisms of adaptive evolution in invasive species, this research should benefit efforts to effectively limit the spread of invasive plants that threaten the native environment. Read moreRead less
Australian Laureate Fellowships - Grant ID: FL100100183
Funder
Australian Research Council
Funding Amount
$2,168,370.00
Summary
Biological adaptation under natural and anthropogenic conditions. This project covers all four national priority areas. Nature abounds with conflicts between what is good for the individual or a larger entity (a population, a society, or a species). Researching them will explain why populations adapt or fail to adapt to novel conditions (e.g., climate change) and predict when interventions are beneficial. Similar rules govern the spread of invasive species. Even health problems, e.g., new virule ....Biological adaptation under natural and anthropogenic conditions. This project covers all four national priority areas. Nature abounds with conflicts between what is good for the individual or a larger entity (a population, a society, or a species). Researching them will explain why populations adapt or fail to adapt to novel conditions (e.g., climate change) and predict when interventions are beneficial. Similar rules govern the spread of invasive species. Even health problems, e.g., new virulent strains of human, animal or plant diseases, require such evolutionary thinking. Cutting-edge mathematical tools also prepare Australians for an era in the near future where genomic data are so cheap to acquire that training in complex mathematical and logical analysis becomes a factor limiting scientific progress.Read moreRead less
The evolution of phenotypic plasticity during a biological invasion. The project seeks to unravel the mechanisms by which a species responds to challenges such as pollution, invasive species and climate change. Organisms can deal with challenges by changing their phenotypes in response to environmental cues (plasticity) and/or by longer-term changes in gene frequencies within a population (adaptation). Plasticity itself can be adaptive; so how does it evolve? Invasive species offer a unique oppo ....The evolution of phenotypic plasticity during a biological invasion. The project seeks to unravel the mechanisms by which a species responds to challenges such as pollution, invasive species and climate change. Organisms can deal with challenges by changing their phenotypes in response to environmental cues (plasticity) and/or by longer-term changes in gene frequencies within a population (adaptation). Plasticity itself can be adaptive; so how does it evolve? Invasive species offer a unique opportunity to answer that question, because a founding population (with modest genetic variation) must deal with myriad challenges in its new home. Using Australia’s cane toad invasion as the model system, the project aims to tease apart the roles of epigenetic and genetic modifications, and the interplay between them, as drivers for the toads’ success and rapid evolution in Australia.Read moreRead less
How are visual gene pathways lost and restored during reptile evolution? This project aims to investigate how complex traits are lost during evolution, and once lost if they can be regained. The project will use the diverse visual systems of snakes and lizards to shed light on the process of gene loss in degenerative lineages, and discover the mechanisms that compensate for gene losses in taxa with secondarily evolved visual capabilities- providing a case of evolutionary re-innovation in complex ....How are visual gene pathways lost and restored during reptile evolution? This project aims to investigate how complex traits are lost during evolution, and once lost if they can be regained. The project will use the diverse visual systems of snakes and lizards to shed light on the process of gene loss in degenerative lineages, and discover the mechanisms that compensate for gene losses in taxa with secondarily evolved visual capabilities- providing a case of evolutionary re-innovation in complex traits.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE230100067
Funder
Australian Research Council
Funding Amount
$460,233.00
Summary
Predicting the future threat of mosquitoes under climate change. This project aims to predict the future distributions of local and invasive mosquito species under climate change by testing their ability to adapt to hot, cold and dry environments. The project expects to generate new knowledge by identifying traits that underpin climate change adaptation in mosquitoes. Expected outcomes of this project include an enhanced understanding of future mosquito distributions through new predictive model ....Predicting the future threat of mosquitoes under climate change. This project aims to predict the future distributions of local and invasive mosquito species under climate change by testing their ability to adapt to hot, cold and dry environments. The project expects to generate new knowledge by identifying traits that underpin climate change adaptation in mosquitoes. Expected outcomes of this project include an enhanced understanding of future mosquito distributions through new predictive models that incorporate adaptive changes. This should provide significant social and economic benefits, with outcomes intended to improve the management of local pest mosquitoes and prepare Australia to tackle invasive mosquito threats.Read moreRead less
Managing infectious disease through partial wildlife social networks. This project aims to investigate the dynamics of the spread of infectious disease in wildlife, derived from incomplete information about contact networks. Infectious diseases in wildlife are difficult to track and control, because it is not feasible to monitor each individual in a population and know the contact network for a population. The project will create ways to best utilise incomplete observational data of contact netw ....Managing infectious disease through partial wildlife social networks. This project aims to investigate the dynamics of the spread of infectious disease in wildlife, derived from incomplete information about contact networks. Infectious diseases in wildlife are difficult to track and control, because it is not feasible to monitor each individual in a population and know the contact network for a population. The project will create ways to best utilise incomplete observational data of contact networks to develop robust predictions of disease spread and population fate, and to reliably predict the outcomes of management interventions. These robust prediction methods will provide better insights for conservation of Australian wildlife.Read moreRead less
Experimental co-evolution of Yeast and E. coli. This project aims to measure the rates and genetic mechanisms of adaptation for individual species within a microbial community. Expected outcomes of this interdisciplinary project include the first genomic and phenotypic dataset of a model microbial community, and novel tools for the analysis of meta-genomic datasets. This project has the potential to transform understanding of microbial adaptation.
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
Why does the genetic nearly-null subspace exist? This project aims to determine why nearly-null genetic subspaces exist by simultaneously measuring the input of new mutational variance in these nearly-null subspaces and the selection that acts on these new mutations to result in the observed low levels of standing genetic variance. The ability of organisms to evolve in response to human disturbance, translocation to new environments, or climate variation is governed by the availability of geneti ....Why does the genetic nearly-null subspace exist? This project aims to determine why nearly-null genetic subspaces exist by simultaneously measuring the input of new mutational variance in these nearly-null subspaces and the selection that acts on these new mutations to result in the observed low levels of standing genetic variance. The ability of organisms to evolve in response to human disturbance, translocation to new environments, or climate variation is governed by the availability of genetic variation. Recent advances in multivariate genetic analysis have demonstrated that a substantial proportion of a phenotype described by quantitative traits has very little genetic variance associated with it, and will therefore tend to be subjected to evolutionary limitsRead moreRead less