Drought and Salinity Tolerance in Metal Hyperaccumulating Plants: A Functional Role for the Metals? A few plant species can ?hyperaccumulate? metal ions to 100-1000 times the concentrations seen in ?normal? plants. Just why these plants have evolved such an extreme response to metalliferous soils remains an enigma. Many of the hyperaccumulators so far described are endemic to xeric environments, or saline soils prone to rapid drying. We hypothesize that the metals might act as osmotica, enha ....Drought and Salinity Tolerance in Metal Hyperaccumulating Plants: A Functional Role for the Metals? A few plant species can ?hyperaccumulate? metal ions to 100-1000 times the concentrations seen in ?normal? plants. Just why these plants have evolved such an extreme response to metalliferous soils remains an enigma. Many of the hyperaccumulators so far described are endemic to xeric environments, or saline soils prone to rapid drying. We hypothesize that the metals might act as osmotica, enhancing plant survival during water stress. This will be tested for Australian native and non-native hyperaccumulator plants. The study will clarify our understanding of the evolutionary significance of hyperaccumulation, and has important applications for extracting metals from contaminated soils.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0989608
Funder
Australian Research Council
Funding Amount
$190,000.00
Summary
The Heron Island Climate Change Observatory: An In-Situ Ocean Acidification and Carbonate Chemistry Monitoring Platform. Climate change and ocean acidification are widely recognized as key threats to Australia's natural ecosystems, yet we are currently ill-equipped to respond due to poor knowledge of the scale/nature of the impacts. The Heron Island Climate Change Observatory will establish key infrastructure that will rapidly improve our understanding of the impacts of ocean acidification whic ....The Heron Island Climate Change Observatory: An In-Situ Ocean Acidification and Carbonate Chemistry Monitoring Platform. Climate change and ocean acidification are widely recognized as key threats to Australia's natural ecosystems, yet we are currently ill-equipped to respond due to poor knowledge of the scale/nature of the impacts. The Heron Island Climate Change Observatory will establish key infrastructure that will rapidly improve our understanding of the impacts of ocean acidification which is important to local communities and the nation given that coral reefs support over $6 billion in revenue (and employ 60,000 people) each year. This critically important information is essential to the management and protection of Australia's coral reefs, including the Great Barrier Reef.
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The impact of ocean acidification on the fertilization, larval development and recruitment of key Australian marine organisms. This work will define the potential vulnerability for Australian marine ecosystems that arises from the rapid acidification of Australia's coastal environments by rising atmospheric carbon dioxide. Our preliminary data suggest that the early life history stages of a wide range of marine species are very sensitive to the impact of ocean acidification. At present, almost ....The impact of ocean acidification on the fertilization, larval development and recruitment of key Australian marine organisms. This work will define the potential vulnerability for Australian marine ecosystems that arises from the rapid acidification of Australia's coastal environments by rising atmospheric carbon dioxide. Our preliminary data suggest that the early life history stages of a wide range of marine species are very sensitive to the impact of ocean acidification. At present, almost nothing is known about the impacts and implications of these changes. Without this knowledge, however, we are in a poor position as a nation to respond and adapt to these changes. We plan to explore this vulnerability for Australian marine organisms and develop a detailed understanding of its implications for Australia's marine ecosystems and associated industries. Read moreRead less
Bottom-up effects of nutrients on estuarine fish related ecosystems. Over 84% of Australians live within 50 km of the coast, and have large impacts on coastal ecosystems, such as increasing nutrients in estuaries. Nutrients have strong bottom-up effects on fish ecosystems, especially during critical juvenile life history stages. Elevated nutrients can alter fish productivity and sustainability, having ecosystem and social implications. This project will combine experimental evidence with novel a ....Bottom-up effects of nutrients on estuarine fish related ecosystems. Over 84% of Australians live within 50 km of the coast, and have large impacts on coastal ecosystems, such as increasing nutrients in estuaries. Nutrients have strong bottom-up effects on fish ecosystems, especially during critical juvenile life history stages. Elevated nutrients can alter fish productivity and sustainability, having ecosystem and social implications. This project will combine experimental evidence with novel approaches of fatty acid tracers in food-webs and fish otolith (earbone) chemistry, to determine how nutrients affect fish ecosystems, recruitment, and survivorship. This project will provide information needed to create sustainable fisheries, to safeguard Australia's fisheries resources for future generations.Read moreRead less
Fish ear stones for monitoring changes in environmental conditions. The ear-stones (=otoliths) of territorial reef fish could provide environmental records over a great latitudinal range. Important environmental variation includes upwelling, riverine input, the southern oscillation and climate change. Laser mass-spectrometry will be used to resolve spatial and temporal variation in environmental conditions experienced in tropical and temperate waters over periods of up to 50 years. Experiments ....Fish ear stones for monitoring changes in environmental conditions. The ear-stones (=otoliths) of territorial reef fish could provide environmental records over a great latitudinal range. Important environmental variation includes upwelling, riverine input, the southern oscillation and climate change. Laser mass-spectrometry will be used to resolve spatial and temporal variation in environmental conditions experienced in tropical and temperate waters over periods of up to 50 years. Experiments will be done to determine the duration of events (ie changes in water chemistry) that are reliably recorded. Environmental variation is known to influence fish populations, including commercial species, but data on frequency and spatial extent of these impacts are few.Read moreRead less
Effects of river plumes on nearshore ecosystems: organic matter flows and food web consequences. River plumes may subsidize nearshore food webs by exporting land-derived material and by stimulating marine phytoplankton production via nutrient delivery. Whereas previous documentation of the biological responses to plumes has been mostly limited to large rivers and to primary production, this project targets small systems that discharge directly onto open coasts, and focuses on the fate of plume ....Effects of river plumes on nearshore ecosystems: organic matter flows and food web consequences. River plumes may subsidize nearshore food webs by exporting land-derived material and by stimulating marine phytoplankton production via nutrient delivery. Whereas previous documentation of the biological responses to plumes has been mostly limited to large rivers and to primary production, this project targets small systems that discharge directly onto open coasts, and focuses on the fate of plume material. Work on carbon pathways will centre on pelagic and benthic food chains associated with plumes, and will also test whether nearshore waters and sandy beaches are coupled via onshore advection of plume material.Read moreRead less
A changing climate for calcification on the Great Barrier Reef: past, present and future. The Great Barrier Reef (GBR) is a national and international icon, recognised through its inscription as a World Heritage Area and economic and social value to Australians. Maintenance of the GBR as we know it is now compromised by a rapidly changing climate. Ocean acidification, warming water temperatures and increased freshwater will progressively be detrimental to the fundamental reef-building process ....A changing climate for calcification on the Great Barrier Reef: past, present and future. The Great Barrier Reef (GBR) is a national and international icon, recognised through its inscription as a World Heritage Area and economic and social value to Australians. Maintenance of the GBR as we know it is now compromised by a rapidly changing climate. Ocean acidification, warming water temperatures and increased freshwater will progressively be detrimental to the fundamental reef-building process of calcification. Informed policy and management strategies in a rapidly changing physical environment require determination, for short and long time frames, of the regional consequences and impacts of changing reef-building capacity.Read moreRead less
Understanding biodiversity by experimental analysis of links between physical, chemical and biological properties of intertidal sediments. The coastal zone accounts for 38 % of total environmental services, estimated as $12 trillion per year. Over 90 % of current development and 80 % of Australians are found within 50 km of the coast, putting enormous pressure on these habitats. Intertidal/shallow subtidal sediments are the most extensive and productive (biologically and economically) coastal ....Understanding biodiversity by experimental analysis of links between physical, chemical and biological properties of intertidal sediments. The coastal zone accounts for 38 % of total environmental services, estimated as $12 trillion per year. Over 90 % of current development and 80 % of Australians are found within 50 km of the coast, putting enormous pressure on these habitats. Intertidal/shallow subtidal sediments are the most extensive and productive (biologically and economically) coastal habitats, supporting much of Australia's unique biodiversity. Their functioning depends on complex interactions among physical, chemical and biotic processes, yet is largely unknown. Understanding these processes is crucial for coastal planning and management, to minimise habitat-loss and retain biodiversity in these important habitats.Read moreRead less
Boxing clever: artificial nest boxes as a conservation and research tool. Saving endangered species increasingly requires proactive management. This project presents an innovative and practical solution to save an iconic Australian species, while also providing the scientific foundation for the development of a novel Australian-based commercial product that will be used to protect and restore Australian biodiversity.
Discovery Early Career Researcher Award - Grant ID: DE190101486
Funder
Australian Research Council
Funding Amount
$400,000.00
Summary
Animal groups as mobile sensor networks. This project aims to provide biologically inspired solutions to the problems faced by mobile sensor networks. Mobile sensor networks provide a powerful new tool in environmental monitoring and surveillance, however, designing them to be energy efficient while not sacrificing information detection remains a challenge. By immersing animal groups into dynamically changing virtual environments this project will design new efficient mobile sensor networks. The ....Animal groups as mobile sensor networks. This project aims to provide biologically inspired solutions to the problems faced by mobile sensor networks. Mobile sensor networks provide a powerful new tool in environmental monitoring and surveillance, however, designing them to be energy efficient while not sacrificing information detection remains a challenge. By immersing animal groups into dynamically changing virtual environments this project will design new efficient mobile sensor networks. The project is expected to provide solutions to mobile sensor network limitations, benefitting areas including robotics, environmental monitoring and defence.Read moreRead less