Development and implementation of biodiversity information for sustainable management of South Australian groundwater. Clean potable water is one of the most important resources for human health and a successful economy. Increasingly, subterranean aquifers are used for storage and recovery of water. These aquifers contain dynamic ecosystems, but little is known about species composition or about the importance of the presence of various species for water quality. We will use the latest laborator ....Development and implementation of biodiversity information for sustainable management of South Australian groundwater. Clean potable water is one of the most important resources for human health and a successful economy. Increasingly, subterranean aquifers are used for storage and recovery of water. These aquifers contain dynamic ecosystems, but little is known about species composition or about the importance of the presence of various species for water quality. We will use the latest laboratory techniques and DNA identification methods to provide a template for determining ground water diversity and food web dynamics throughout Australia. This project will lead to a better understanding of how to manage ground water in a sustainable manner.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
Phylogeny and radiation of flatworm ectoparasites from marine fish using morphology and genetics, with novel approaches to identify pathogenic species. Fish flukes (flatworm parasites) with direct lifecycles can weaken and kill captive fish and threaten lucrative industries like finfish aquaculture and public aquaria in Australia and globally. Traditional approaches and molecular techniques will identify monogenean flukes in a family containing known pathogenic species distributed worldwide. K ....Phylogeny and radiation of flatworm ectoparasites from marine fish using morphology and genetics, with novel approaches to identify pathogenic species. Fish flukes (flatworm parasites) with direct lifecycles can weaken and kill captive fish and threaten lucrative industries like finfish aquaculture and public aquaria in Australia and globally. Traditional approaches and molecular techniques will identify monogenean flukes in a family containing known pathogenic species distributed worldwide. Knowledge of fish disease is paramount for quarantine, risk assessments for import/export and for managing pathogen outbreaks in aquaculture. Benefits include: economic/social improvements in regional/rural Australia where fish farms are expanding; international excellence and core research training in fish parasitology; profitable, exportable expertise; knowledge of endemic and shared pathogens.Read moreRead less
Phylogeography, evolution and taxonomy of humanity's greatest pest, Rattus rattus: Epidemiological, archaeological and conservation implications. This project will characterise a major threat to Australian biosecurity and health, and identify the range of likely disease risks associated with introductions of different 'strains' of black rat. It will provide critical data for management efforts around the world, especially for strategic partners in neighbouring Southeast Asian nations, as well as ....Phylogeography, evolution and taxonomy of humanity's greatest pest, Rattus rattus: Epidemiological, archaeological and conservation implications. This project will characterise a major threat to Australian biosecurity and health, and identify the range of likely disease risks associated with introductions of different 'strains' of black rat. It will provide critical data for management efforts around the world, especially for strategic partners in neighbouring Southeast Asian nations, as well as for conservation efforts within Australia. The data will also provide novel means to track the timing and routes of human prehistoric movements throughout the area. It will establish strategic research collaborations between researchers in zoological, medical, epidemiological, genetics, and conservation fields in a unique multi-disciplinary study.Read moreRead less
Evolution of microgastroid parasitic wasps and their symbiotic viruses - a major group of biological control agents. Microgastroid wasps represent a huge assemblage of species that are parasitic in lepidopteran (moth) larvae and are a major group of biological control agents of agricultural pests. They also possess a unique association with a group of symbiotic viruses that when introduced into a host, block its immune response. This project will elucidate the evolutionary relationships among ....Evolution of microgastroid parasitic wasps and their symbiotic viruses - a major group of biological control agents. Microgastroid wasps represent a huge assemblage of species that are parasitic in lepidopteran (moth) larvae and are a major group of biological control agents of agricultural pests. They also possess a unique association with a group of symbiotic viruses that when introduced into a host, block its immune response. This project will elucidate the evolutionary relationships among wasps and viruses employing morphology, sequence data and information on mitochondrial genome organisation as a basis for investigating the level of cophylogeny between these partner organisms, and to provide a framework for studies on wasp-host interactions at a molecular level.Read moreRead less
Co-evolution of sociality and sex allocation: phylogenetic comparative approaches using insects. This project investigates the coevolution of sex allocation and sociality. Although linkage between these two traits has long been conjectured in evolutionary ecology, and numerous studies have investigated species-specific relationships, the question of how these two features interact over evolutionary time has not been examined. Here, we apply phylogenetic comparative approaches to determine wh ....Co-evolution of sociality and sex allocation: phylogenetic comparative approaches using insects. This project investigates the coevolution of sex allocation and sociality. Although linkage between these two traits has long been conjectured in evolutionary ecology, and numerous studies have investigated species-specific relationships, the question of how these two features interact over evolutionary time has not been examined. Here, we apply phylogenetic comparative approaches to determine whether sex allocation strategies have influenced subsequent social evolution. In particular, we extend the notion of parental manipulation to ask whether mothers have been able to use sex allocation to influence alloparental behaviour in their offspring, leading to greater levels of altruism.Read moreRead less
The Cambrian Population Explosion of Arthropods in Australia: Ediacaran origins, evolution and biodiversity. This project addresses key questions on the origin and diversification of life, by investigating the evolution of the most important fossil group (arthropods) across arguably the most important event after the origin of life (the Cambrian explosion of macroscopic life). It will also excavate, promote and conserve two key geological resources of national importance, in the Flinders Ranges ....The Cambrian Population Explosion of Arthropods in Australia: Ediacaran origins, evolution and biodiversity. This project addresses key questions on the origin and diversification of life, by investigating the evolution of the most important fossil group (arthropods) across arguably the most important event after the origin of life (the Cambrian explosion of macroscopic life). It will also excavate, promote and conserve two key geological resources of national importance, in the Flinders Ranges and Kangaroo Island. Also, it will lead to increased knowledge of the palaeoecology and geology of the economically-important Adelaide geosyncline, and benefit rural SA communities through ecotourism, a rural schools education program, and public outreach.Read moreRead less
Improving Insect-based Technology for Minimum Death Time Estimates in Forensic Investigations in Australia. This research will provide more accurate, narrower death time estimates for Australia. Focusing enquiries more accurately around the death time will result in significant financial savings in homicide investigations. Court evidence based on insects will become more robust, thus improving prosecution success. Partnerships will also be enhanced between laboratories with common aims, but di ....Improving Insect-based Technology for Minimum Death Time Estimates in Forensic Investigations in Australia. This research will provide more accurate, narrower death time estimates for Australia. Focusing enquiries more accurately around the death time will result in significant financial savings in homicide investigations. Court evidence based on insects will become more robust, thus improving prosecution success. Partnerships will also be enhanced between laboratories with common aims, but different experience and expertise, thereby avoiding research duplication and producing synergistic effects of collaboration. Casework methodology in Australia will become better aligned, thus avoiding courtroom conflicts between practitioners. Finally, high quality graduate students will be trained in entomological and forensic sciences.Read moreRead less
The puzzle of Metazoan life history evolution: are feeding larvae always primitive? Most marine animals have a complex life-cycles with alternating pelagic larvae and benthic adults. An theory about animal life-history evolution states that feeding larvae are always primitive and larval feeding is lost but not gained. This hypothesis is based in part on studies on the 'classical' trochophore of marine worms such as Serpulidae, a group with both feeding and non-feeding larvae. We intend to establ ....The puzzle of Metazoan life history evolution: are feeding larvae always primitive? Most marine animals have a complex life-cycles with alternating pelagic larvae and benthic adults. An theory about animal life-history evolution states that feeding larvae are always primitive and larval feeding is lost but not gained. This hypothesis is based in part on studies on the 'classical' trochophore of marine worms such as Serpulidae, a group with both feeding and non-feeding larvae. We intend to establish a detailed phylogeny for Serpulidae and assess the evolution of larvae in the group. If feeding larvae are shown to be secondary this will raise doubts about established theories of animal evolution.Read moreRead less
Evolution of the unique fauna of the Great Artesian Basin mound springs: the impact of aridification and climate change. The mound springs of the Great Artesian Basin represent one of Australia's most unique environments and are of national biodiversity, cultural and economic significance. Their conservation is a major issue following listing of the springs as a threatened ecological community. As economic productivity in the GAB intensifies, the mound springs are under increasing threat from es ....Evolution of the unique fauna of the Great Artesian Basin mound springs: the impact of aridification and climate change. The mound springs of the Great Artesian Basin represent one of Australia's most unique environments and are of national biodiversity, cultural and economic significance. Their conservation is a major issue following listing of the springs as a threatened ecological community. As economic productivity in the GAB intensifies, the mound springs are under increasing threat from escalating groundwater use. The results of this study on the evolution of two crustacean groups will provide significant biological information for management plans, facilitating conservation of mound springs communities, and helping to understand the impacts of water extraction and climate change on this unique habitat.Read moreRead less