Genes in conflict in the social insects. Queen bees mate with 20 males, so it is in each male's interests to father female offspring that are more likely to become queens or reproductive workers. In contrast, queens want all workers to be sterile. This project will determine if some males pass on genes to offspring that have been modified so that their daughters are likely to become reproductive.
The evolution of generalism: why so many polyphagous fruit flies? This project aims to understand why flies that cause maggoty fruit have so frequently evolved the generalist feeding habitat. Insect herbivores make up 50 per cent of eukaryotic species on earth. Nearly all are host specialists, feeding on only one or very few plant species. In stark contrast, 40 per cent of tropical fruit flies are generalists, feeding across many plant families. This project aims to test specific hypotheses to e ....The evolution of generalism: why so many polyphagous fruit flies? This project aims to understand why flies that cause maggoty fruit have so frequently evolved the generalist feeding habitat. Insect herbivores make up 50 per cent of eukaryotic species on earth. Nearly all are host specialists, feeding on only one or very few plant species. In stark contrast, 40 per cent of tropical fruit flies are generalists, feeding across many plant families. This project aims to test specific hypotheses to explain the high frequency of generalism in Bactrocera. Outcomes will significantly advance understanding of the evolution of generalism, and so greatly advance herbivory theory. As Bactrocera are also globally significant horticultural pests, the project will provide under-pinning science for pest management.Read moreRead less
Evolution of vascular tissue in land plants. This project will investigate genetic mechanisms of secondary cell wall thickening in a new genetic model representing an ancient plant lineage. This research will reveal the evolutionary origin of plant vascular tissue; a significant innovation that allowed increased size of plants and the origin of wood.
Adaptive plasticity and evolution: linking the genotype and the environment to understand phenotypic evolution and expression. Different environmental signals alter when and where specific genes are expressed, thereby altering the phenotype. This project will examine the differences in the timing and use of genes in response to cues of competition that result in differences between the sexes. This will increase our understanding of the role of genes in sexual evolution.
Discovery Early Career Researcher Award - Grant ID: DE120100214
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
Re-evaluating evolution by examining developmental plasticity in response to the social environment. Our understanding of trait evolution is derived from our assumption that traits are a signal of male quality as they are costly to produce. The project will integrate this concept with a new theory stating that males shift their development to exploit the weaknesses of rivals; thereby leading to a more holistic understanding of evolution.
Biodiversity and population genetics of groundwater calcrete ecosystems of central Western Australia. This project will lead to documentation of a unique subterranean ecosystem of world acclaim, representing a significant component of the biodiversity of the Australian arid zone. It will further contribute to sustainable management of groundwater ecosystems and provide information that can be used to predict and monitor how future water use and climate change may impact on these ecosystems. Resu ....Biodiversity and population genetics of groundwater calcrete ecosystems of central Western Australia. This project will lead to documentation of a unique subterranean ecosystem of world acclaim, representing a significant component of the biodiversity of the Australian arid zone. It will further contribute to sustainable management of groundwater ecosystems and provide information that can be used to predict and monitor how future water use and climate change may impact on these ecosystems. Results generated will provide the knowledge base required to improve the efficiency and scientific rigour of the environmental review process for major resource projects, leading to economic benefits to the mining and environmental consultancy industries, and to Australia in general.Read moreRead less
Assessment of the diversity, distribution and uniqueness of subterranean animals from calcrete aquifers in central western Australia. Recently a rich and diverse subterranean invertebrate fauna (stygofauna) was unexpectedly discovered from numerous isolated calcrete aquifers associated with palaeodrainage channels in central Western Australia. Our recent taxonomic and molecular studies have suggested that stygofaunas within each aquifer may be highly endemic. We aim to test this hypothesis by in ....Assessment of the diversity, distribution and uniqueness of subterranean animals from calcrete aquifers in central western Australia. Recently a rich and diverse subterranean invertebrate fauna (stygofauna) was unexpectedly discovered from numerous isolated calcrete aquifers associated with palaeodrainage channels in central Western Australia. Our recent taxonomic and molecular studies have suggested that stygofaunas within each aquifer may be highly endemic. We aim to test this hypothesis by investigating the diversity, distribution and uniqueness of stygofauna from three major calcrete regions. We further aim to document the environmental conditions and variability within the aquifers and to develop rigorous sampling protocols. Such data are essential for the development of appropriate strategies for sustainable management of subterranean water and their ecosystems.Read moreRead less
Environmental stress profiling (ESP): Molecular profiling of sediment microbial communities for improved biological monitoring in aquatic ecosystems. Water resource management is a key issue for environmental sustainability in Australia and strategies that include ecological principles are important to improve present conditions and reduce further degradation. Current biomonitoring methods suffer from a low degree of sensitivity that can seriously impact their effectiveness as early warning sign ....Environmental stress profiling (ESP): Molecular profiling of sediment microbial communities for improved biological monitoring in aquatic ecosystems. Water resource management is a key issue for environmental sustainability in Australia and strategies that include ecological principles are important to improve present conditions and reduce further degradation. Current biomonitoring methods suffer from a low degree of sensitivity that can seriously impact their effectiveness as early warning signals of ecological disturbance. We propose to combine molecular and ecotoxicological assessment of the effect of zinc toxicity on microbial communities to provide rapid pollution sensitive bioassessment. Our research will lead to a better understanding of the cause and effect of heavy metal pollution within aquatic ecosystems and greater insight on how to reduce and repair the negative effects.Read moreRead less
The ecology of parasite transmission in fauna translocations. Parasitic diseases pose a threat to the conservation management of Australia's biodiversity. This project will improve our understanding of the impact and transmission of parasites in fauna translocations, contributing to the conservation management of Australian ecosystems by government and private agencies.