Discovery Early Career Researcher Award - Grant ID: DE150101393
Funder
Australian Research Council
Funding Amount
$360,000.00
Summary
Genetic and epigenetic drivers of the Australian cane toad invasion. Although invasive species are a massive threat to biodiversity, and costly to society, we still do not understand the evolutionary processes that shape invasions. Invasive populations often show rapid evolutionary change in novel environments but attempts to identify the underlying genetic mechanisms have been largely unsuccessful. This project aims to explore an innovative and untested alternative possibility: that invader evo ....Genetic and epigenetic drivers of the Australian cane toad invasion. Although invasive species are a massive threat to biodiversity, and costly to society, we still do not understand the evolutionary processes that shape invasions. Invasive populations often show rapid evolutionary change in novel environments but attempts to identify the underlying genetic mechanisms have been largely unsuccessful. This project aims to explore an innovative and untested alternative possibility: that invader evolution is primarily driven by epigenetic change. Using an iconic Australian invasive species, the cane toad, the project aims to quantify genetic and epigenetic change across the invasion and use manipulative experiments to determine the influence of epigenetic change on the evolution of phenotypic traits important to invasion.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
Predicting adaptation and range expansion under climate change. This project investigates the repeatability and thereby the predictability of adaptation to climate change by leveraging 1000 genomes sampled over 150 years and multiple climatic gradients in the rapidly adapting, globally invasive, and highly allergenic ragweed. We expect to deepen our understanding of the genetic basis of adaptation and decipher the circumstances under which adaptive genetic change is repeatable, by integrating a ....Predicting adaptation and range expansion under climate change. This project investigates the repeatability and thereby the predictability of adaptation to climate change by leveraging 1000 genomes sampled over 150 years and multiple climatic gradients in the rapidly adapting, globally invasive, and highly allergenic ragweed. We expect to deepen our understanding of the genetic basis of adaptation and decipher the circumstances under which adaptive genetic change is repeatable, by integrating a novel evolutionary model with genomic data. We will develop the capacity to predict species’ distributions and trait evolution under climate change using a powerful empirical dataset. This will provide us with the capacity to anticipate and manage the effects of climate change on noxious and threatened species.Read moreRead less
Some like it hot: invasive species, hybridisation, and a warming world. Temperatures are rising and invasive species are becoming more prevalent. This project aims to understand how climate change and hybridisation between exotic and native marine species leads to rapid adaptation. Using integrative approaches from genomics and physiology and focusing on Australian blue mussels, this proposal will test leading hypotheses about how climate change and hybridisation can enable rapid adaptation and ....Some like it hot: invasive species, hybridisation, and a warming world. Temperatures are rising and invasive species are becoming more prevalent. This project aims to understand how climate change and hybridisation between exotic and native marine species leads to rapid adaptation. Using integrative approaches from genomics and physiology and focusing on Australian blue mussels, this proposal will test leading hypotheses about how climate change and hybridisation can enable rapid adaptation and the spread of exotic species. Outcomes will include strategies for minimising impacts of invasive mussels and boosting warm-temperature adaptation in aquaculture mussels and restored shellfish reefs. This project will yield fundamental insights into how marine species can quickly adapt to warming seas.Read moreRead less
Extinction of turtles in the River Murray: Consequences and Solutions. Turtles are a major ecological component of the Murray-Darling, Australia’s major river system. They are declining alarmingly with potential dire consequences for water quality, biodiversity, and river health. This project unites a world-class research team with diverse industry partners, indigenous groups, and non-government organisations from three states to address a problem of national significance. This project aims to i ....Extinction of turtles in the River Murray: Consequences and Solutions. Turtles are a major ecological component of the Murray-Darling, Australia’s major river system. They are declining alarmingly with potential dire consequences for water quality, biodiversity, and river health. This project unites a world-class research team with diverse industry partners, indigenous groups, and non-government organisations from three states to address a problem of national significance. This project aims to identify and quantify causes of declines in turtles along the whole system, with the aim of developing practical management options to overcome it. This will be the first river-wide study of turtles, achieved by combining cutting-edge genetic and ecological techniques with a citizen science program.Read moreRead less
Using decision theory to design smart plant surveys. Threatened species may remain unprotected, or weeds detected too slowly if, because of imperfect detection, a species is believed to be absent when it is in fact present. This project will develop new theory and combine it with new estimates of detection rates to minimise the impact of imperfect detection on management decisions.
Discovery Early Career Researcher Award - Grant ID: DE180101164
Funder
Australian Research Council
Funding Amount
$365,058.00
Summary
Evolution of chemical warfare in invasive plants. The project aims to test when, where and how exotic plant populations become invasive through the rapid evolution of chemical compounds that inhibit native plant species. Using an innovative quantitative genetics framework, the intended outcome is to determine how the chemicals are selected, and whether there is sufficient heritable variation for the chemicals to evolve across heterogeneous landscapes characteristic of introduced ranges. The proj ....Evolution of chemical warfare in invasive plants. The project aims to test when, where and how exotic plant populations become invasive through the rapid evolution of chemical compounds that inhibit native plant species. Using an innovative quantitative genetics framework, the intended outcome is to determine how the chemicals are selected, and whether there is sufficient heritable variation for the chemicals to evolve across heterogeneous landscapes characteristic of introduced ranges. The project will deliver key insights into the ecological and genetic mechanisms of adaptive evolution in invasive species, and predict evolutionary dynamics of biological invasions that inform their effective management. The project’s expected outcomes will be useful to policy makers, weed managers and farming communities.Read moreRead less
Improving the reintroduction success of mammals. Improving the reintroduction success of mammals. This project intends to improve the anti-predator traits of mammals and reduce the population density of introduced predators, using a novel two-pronged approach to combat predation by introduced predators. Predation by cats and foxes is the chief cause of reintroduction failure in Australian mammals. This project will look to improve the reintroduction success of burrowing bettongs outside predator ....Improving the reintroduction success of mammals. Improving the reintroduction success of mammals. This project intends to improve the anti-predator traits of mammals and reduce the population density of introduced predators, using a novel two-pronged approach to combat predation by introduced predators. Predation by cats and foxes is the chief cause of reintroduction failure in Australian mammals. This project will look to improve the reintroduction success of burrowing bettongs outside predator-free sanctuaries by exposing individuals to predators before release and by harnessing the suppressive effects of dingoes on introduced predators. Anticipated outcomes are improved re-introduction protocols for threatened mammals and re-established populations of endangered wildlife outside predator-free-sanctuaries.Read moreRead less
Integrating fire and predator management to conserve threatened species. This project aims to empower land managers to better conserve Australia’s threatened native animals by developing decision-support approaches that facilitate integrated management of threatening processes. The project will use a combination of novel predictive models, field experiments and data syntheses to assist land managers to better conserve Australia’s threatened native fauna. This project will benefit biodiversity co ....Integrating fire and predator management to conserve threatened species. This project aims to empower land managers to better conserve Australia’s threatened native animals by developing decision-support approaches that facilitate integrated management of threatening processes. The project will use a combination of novel predictive models, field experiments and data syntheses to assist land managers to better conserve Australia’s threatened native fauna. This project will benefit biodiversity conservation by enabling more effective allocation of limited conservation resources.Read moreRead less
New multi-scale seed dispersal models for improved regional weed management. This project will exploit recent advances in ecological and atmospheric modelling with the aim to build improved models of seed dispersal across landscapes to anticipate weed spread. Damaging invasive plants are rapidly transforming landscapes and altering ecosystem function worldwide. The speed and direction of weed spread determines the success or failure of costly containment and control actions, however we lack the ....New multi-scale seed dispersal models for improved regional weed management. This project will exploit recent advances in ecological and atmospheric modelling with the aim to build improved models of seed dispersal across landscapes to anticipate weed spread. Damaging invasive plants are rapidly transforming landscapes and altering ecosystem function worldwide. The speed and direction of weed spread determines the success or failure of costly containment and control actions, however we lack the ability to adequately predict spread. New models that combine micrometeorological measurements, within-canopy turbulence and topographic variation in wind flows will be designed to better predict where dispersal will occur. In this project, these improved predictions are planned to be combined with decision models to direct the management of invasive species across entire landscapes.Read moreRead less