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Impacts of changing detrital source biodiversity on estuarine ecosystems. Coastal development, invasive pests, and climate change are impacting abundances of estuarine aquatic plants. This in turn is affecting the composition and magnitude of detrital enrichment, threatening biodiversity, fisheries production and endangered birds. Our pioneering research will forecast the impacts of changing detrital-source biodiversity on soft-sediment communities and the food webs they support in Australia and ....Impacts of changing detrital source biodiversity on estuarine ecosystems. Coastal development, invasive pests, and climate change are impacting abundances of estuarine aquatic plants. This in turn is affecting the composition and magnitude of detrital enrichment, threatening biodiversity, fisheries production and endangered birds. Our pioneering research will forecast the impacts of changing detrital-source biodiversity on soft-sediment communities and the food webs they support in Australia and the USA. Ecological generalities obtained can be used to support policy development that ensures sustainable management of estuaries. This work will also facilitate training of early career researchers and focus research efforts of leading US researchers towards issues crucial for Australian estuarine management.Read moreRead less
Biodiversity in high rainfall mediterranean-climate ecosystems: Integrating fields of ecological enquiry to achieve improved conservation outcomes. This project targets research priority 'An Environmentally Sustainable Australia' through the management and protection of Australia's terrestrial biodiversity, and by increasing understanding of the impact of climate change and variability at the local to regional level. By linking disparate data sets across similar climatic regions, and through dir ....Biodiversity in high rainfall mediterranean-climate ecosystems: Integrating fields of ecological enquiry to achieve improved conservation outcomes. This project targets research priority 'An Environmentally Sustainable Australia' through the management and protection of Australia's terrestrial biodiversity, and by increasing understanding of the impact of climate change and variability at the local to regional level. By linking disparate data sets across similar climatic regions, and through direct links to management agencies, this project will enable development of a landscape conservation culture for improved conservation outcomes, and more direct information use through science-based adaptive management. Efficient use of existing data and the 'promotion of an innovation culture and economy' by linking global perspectives to local conservation needs, are hallmarks of this project.Read moreRead less
Influence of energy intake on reproduction. Understanding reproduction is fundamentally important to ecology and conservation. Despite intensive research, the processes that regulate energy acquisition and allocation for reproduction are still unclear for most animal species. Many of the obstacles to progress in this field of research are logistical, reflecting the complexity and temporal overlap of significant components of energy allocation pathways. Our proposed study avoids many of these l ....Influence of energy intake on reproduction. Understanding reproduction is fundamentally important to ecology and conservation. Despite intensive research, the processes that regulate energy acquisition and allocation for reproduction are still unclear for most animal species. Many of the obstacles to progress in this field of research are logistical, reflecting the complexity and temporal overlap of significant components of energy allocation pathways. Our proposed study avoids many of these logistical difficulties by focusing on animals (snakes) that display clear temporal partitioning between successive segments of the reproductive cascade (i.e., vitellogenesis, ovulation, embryogenesis); and by adopting a simple but novel method (based on stable isotope analysis) to tease apart the relationship between energy acquisition and energy expenditure in different phases of the animal's life-history.Read moreRead less
Ecological patterns in deep-sea macro- and microbiotic communities on Vailulu'u Seamount and Ta'u Island, American Samoa. Volcanoes are viewed as large mountains that occasionally spurt smoke and debris into the air. But terrestrial volcanoes are but a small fraction of the volcanos on our planet, most simmer unobserved underneath the sea. The interdependence of biosphere, hydrosphere and lithosphere at volcanoes is amongst the most exciting and important research topics that help us understand ....Ecological patterns in deep-sea macro- and microbiotic communities on Vailulu'u Seamount and Ta'u Island, American Samoa. Volcanoes are viewed as large mountains that occasionally spurt smoke and debris into the air. But terrestrial volcanoes are but a small fraction of the volcanos on our planet, most simmer unobserved underneath the sea. The interdependence of biosphere, hydrosphere and lithosphere at volcanoes is amongst the most exciting and important research topics that help us understand how our planet has evolved and works through time. This project will used manned submersibles and remotely operated vehicles to conduct experiments at a submarine volcano that will help us understand how complex biological systems can form under such extreme conditions.Read moreRead less
High temperature limits of leaf function. In arid and semi-arid central Australia, Acacia spp. dominate the over-storey, but this shifts to Eucalyptus and Corymbia spp. in more mesic coastal regions. Areas of central Australia are extremely hot, dry and sunny, and it is this combination of stresses that likely excludes Eucalyptus spp. from many landforms. There has been little research on high temperature tolerance of Acacia and Eucalyptus, despite the putative importance of this stress, in co ....High temperature limits of leaf function. In arid and semi-arid central Australia, Acacia spp. dominate the over-storey, but this shifts to Eucalyptus and Corymbia spp. in more mesic coastal regions. Areas of central Australia are extremely hot, dry and sunny, and it is this combination of stresses that likely excludes Eucalyptus spp. from many landforms. There has been little research on high temperature tolerance of Acacia and Eucalyptus, despite the putative importance of this stress, in combination with other stresses, in limiting species? distributions. Our program of collaborative research will examine the tolerance of Acacia and Eucalyptus to a combination of high temperatures, drought and high light.Read moreRead less
The role of biological and chemical interactions in the rhizosphere in sustainable intercropping systems. Intercropping can result in large yield increases compared to mono-cropped systems. It is used extensively in China and could be an option for sustainable land-use in Australia. Belowground interactions between intercropped crop species may be important for the yield increase, but they are poorly understood, especially with regard to nutrient availability and soil biology. We will combine th ....The role of biological and chemical interactions in the rhizosphere in sustainable intercropping systems. Intercropping can result in large yield increases compared to mono-cropped systems. It is used extensively in China and could be an option for sustainable land-use in Australia. Belowground interactions between intercropped crop species may be important for the yield increase, but they are poorly understood, especially with regard to nutrient availability and soil biology. We will combine the field experience in intercropping systems of the Chinese scientists with the expertise of the Australian scientists in plant nutrition and rhizosphere ecology to characterise chemical and biological interactions in the rhizosphere governing nutrient availability and the competitive ability of intercropped species.Read moreRead less
Post-invasion trait-mediated indirect interactions: ecological and evolutionary impacts of the invasive European green crab. A multitude of ecological interactions determine the success and impacts of invasive species. We will advance current knowledge of the impacts of invasive European green crabs in Australia by detailing ecological and evolutionary interactions with native molluscs. This information will be useful in understanding the crab's invasion success and impacts on native communiti ....Post-invasion trait-mediated indirect interactions: ecological and evolutionary impacts of the invasive European green crab. A multitude of ecological interactions determine the success and impacts of invasive species. We will advance current knowledge of the impacts of invasive European green crabs in Australia by detailing ecological and evolutionary interactions with native molluscs. This information will be useful in understanding the crab's invasion success and impacts on native communities in Australia and other regions invaded by the crab worldwide. More broadly, this work will provide an evolutionary perspective of post-invasion processes that has been substantiated in terrestrial systems but is often lacking in marine systems. Read moreRead less
Determining global and regional conservation priorities for biodiversity hotspots. The economic wealth of both Australia and Israel is underpinned by biological diversity - for example the remarkable biological diversity of both countries fuels multimillion-dollar tourism industries. We will devise methods to make better decisions about where to invest conservation dollars amongst the biodiversity 'hotspots' of the Mediterranean ecosystems of the world. We will create and test new theory and to ....Determining global and regional conservation priorities for biodiversity hotspots. The economic wealth of both Australia and Israel is underpinned by biological diversity - for example the remarkable biological diversity of both countries fuels multimillion-dollar tourism industries. We will devise methods to make better decisions about where to invest conservation dollars amongst the biodiversity 'hotspots' of the Mediterranean ecosystems of the world. We will create and test new theory and tools for incorporating into decision making the effect of processes such as climate change and invasion by alien species, which will help reduce the huge detrimental impacts on social, economic, health and human-well being. We will share the results of our work with decision makers and with the public.Read moreRead less
The evolutionary effect of the domestication process in a model organism. A significant proportion of research in the field of evolutionary biology, focuses on captive populations of laboratory-bred animals. Little is known about the impact of the domestication process on these species, raising questions about the relevance of such studies. The Australian zebra finch is the avian model species of choice in evolutionary biology laboratories in Europe and the USA and the focus of many high profile ....The evolutionary effect of the domestication process in a model organism. A significant proportion of research in the field of evolutionary biology, focuses on captive populations of laboratory-bred animals. Little is known about the impact of the domestication process on these species, raising questions about the relevance of such studies. The Australian zebra finch is the avian model species of choice in evolutionary biology laboratories in Europe and the USA and the focus of many high profile publications. Our investigation into the affect of domestication on the evolutionary biology of this key model species will have a high international impact, raising the profile of Australian research, in addition to providing fundamental knowledge across several areas of reproductive biology.Read moreRead less
Development of Australian model systems for speciation research. Our project will contribute to an understanding of the process of speciation, a fundamental biological problem, for which there are few well-developed model systems in the world. We will further our understanding of how Australia's extraordinary diversity of animal species have evolved, knowledge which is valuable for understanding the future impact of climatic and environmental changes on species. Our research will generate furthe ....Development of Australian model systems for speciation research. Our project will contribute to an understanding of the process of speciation, a fundamental biological problem, for which there are few well-developed model systems in the world. We will further our understanding of how Australia's extraordinary diversity of animal species have evolved, knowledge which is valuable for understanding the future impact of climatic and environmental changes on species. Our research will generate further knowledge of the diversity and biological significance of subterranean fauna in the arid zone of Australia, providing important background data for assessing the impacts of mining activities on groundwater-dependent-ecosystems and improved strategies for their sustainable management. Read moreRead less