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Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0668008
Funder
Australian Research Council
Funding Amount
$100,000.00
Summary
Advanced stable isotope ratio mass spectrometer for investigations on carbon and nutrient cycling processes in terrestrial and aquatic ecosystems. The effective use of innovative stable isotope techniques, particularly in combination with other advanced technologies (eg bio-molecular and nuclear magnetic resonance), has resulted in exciting advances in the understanding and management of critically important carbon and nutrient cycling processes in terrestrial and aquatic ecosystems. This applic ....Advanced stable isotope ratio mass spectrometer for investigations on carbon and nutrient cycling processes in terrestrial and aquatic ecosystems. The effective use of innovative stable isotope techniques, particularly in combination with other advanced technologies (eg bio-molecular and nuclear magnetic resonance), has resulted in exciting advances in the understanding and management of critically important carbon and nutrient cycling processes in terrestrial and aquatic ecosystems. This application seeks to purchase an advanced isotope ratio mass spectrometer for supporting and undertaking current and potential new leading research projects with the collaborating institutions, particularly in the above- and below-ground processes in terrestrial ecosystems, and nutrient transformations and impacts in aquatic ecosystems in response to global change and management options.Read moreRead less
Sediment and seed bank dynamics in river systems of southeastern Australia: Implications for vegetation-based river rehabilitation. Every year in Australia millions of dollars are spent revegetating degraded riparian corridors as part of best practice river rehabilitation. The planting and maintenance of riparian tubestock is an expensive but essential component of current on-the-ground river management across the country. What if the success rate of riparian rehabilitation could be enhanced by ....Sediment and seed bank dynamics in river systems of southeastern Australia: Implications for vegetation-based river rehabilitation. Every year in Australia millions of dollars are spent revegetating degraded riparian corridors as part of best practice river rehabilitation. The planting and maintenance of riparian tubestock is an expensive but essential component of current on-the-ground river management across the country. What if the success rate of riparian rehabilitation could be enhanced by combining geomorphic and ecological knowledge to maximise the germination of native seeds stored in riparian seed banks? As the conservation of biodiversity becomes integral to environmental management, understanding riparian seed bank dynamics and seedling establishment within a geomorphic framework is an essential tool in river rehabilitation practice.Read moreRead less
Movement ecology of granivores: informing fire management of savannas. This project aims to examine the decline in granivorous finches across north Australia and test the hypothesis that an increasingly nomadic lifestyle, associated with tracking grass seed availability over larger spatial scales, is the cause. The project also aims to evaluate how fire affects rangeland functioning, particularly grass diversity, to improve fire management of tropical savannas in northern Australia. This project ....Movement ecology of granivores: informing fire management of savannas. This project aims to examine the decline in granivorous finches across north Australia and test the hypothesis that an increasingly nomadic lifestyle, associated with tracking grass seed availability over larger spatial scales, is the cause. The project also aims to evaluate how fire affects rangeland functioning, particularly grass diversity, to improve fire management of tropical savannas in northern Australia. This project will provide new tools and technologies that will monitor mobile small vertebrates. Expected outcomes will improve the understanding of tropical savanna functioning and fire management. The research aligns with ‘savanna burning’ methodologies and carbon sequestration goals in north Australia.
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Refining Restoration Ecology: Is Range of Historical Variability an appropriate concept to guide ecosystem management and restoration? Ecosystem restoration is an urgent task in many Australian landscapes. Range of Historical Variability (RHV) theory provides an influential but largely untested framework to guide restoration activities. We will test the RHV proposition that biodiversity conservation is enhanced if the structure of altered ecosystems is restored within the pre-settlement range. P ....Refining Restoration Ecology: Is Range of Historical Variability an appropriate concept to guide ecosystem management and restoration? Ecosystem restoration is an urgent task in many Australian landscapes. Range of Historical Variability (RHV) theory provides an influential but largely untested framework to guide restoration activities. We will test the RHV proposition that biodiversity conservation is enhanced if the structure of altered ecosystems is restored within the pre-settlement range. Plants, vertebrates and invertebrates will be compared between ?unrestored? Callitris woodlands dominated by post-settlement regrowth, and ?restored? stands where regrowth has been reduced within the RHV. This will be the first test of RHV theory to encompass a range of taxonomic and functional groups at both local and landscape scales.Read moreRead less
The roles of stress and immunocompetence in biological invasions. Invasive species pose a major threat to biodiversity worldwide; and within Australia, cane toads are widely viewed as one of the biggest such problems. Building on recent studies that reveal weakened immune systems in invasion-front toads, this project will provide a comprehensive understanding of immune responses in cane toads and native frogs, with the aim of exploiting the toads' immunocompromised state to develop new and more ....The roles of stress and immunocompetence in biological invasions. Invasive species pose a major threat to biodiversity worldwide; and within Australia, cane toads are widely viewed as one of the biggest such problems. Building on recent studies that reveal weakened immune systems in invasion-front toads, this project will provide a comprehensive understanding of immune responses in cane toads and native frogs, with the aim of exploiting the toads' immunocompromised state to develop new and more effective control measures. The project will develop a new paradigm about the roles of stress and immunity in biological invasion, applicable to the control of other invasive species and to understanding processes at work when environmental changes force species to shift their ranges.Read moreRead less
Naturalisation to invasion: how do naturalised plants become successful invaders? Invasive plants have enormous environmental, economic and social impacts in Australia, significantly affecting biodiversity and ecosystem processes, agricultural productivity and recreational amenity. This research will contribute substantially to our understanding of the processes that underlie the transition from naturalised to invasive for introduced plants. By identifying the key factors enabling naturalised pl ....Naturalisation to invasion: how do naturalised plants become successful invaders? Invasive plants have enormous environmental, economic and social impacts in Australia, significantly affecting biodiversity and ecosystem processes, agricultural productivity and recreational amenity. This research will contribute substantially to our understanding of the processes that underlie the transition from naturalised to invasive for introduced plants. By identifying the key factors enabling naturalised plant species to become invasive pests, this research will enable plant species most likely to threaten Australia's biodiversity and agricultural productivity to be identified and prioritized for screening and eradication.Read moreRead less
Ecology of insect herbivore assemblages: influence of climate, evolutionary history and plant traits. The results from this project will be a key reference when assessing future impacts of human-induced impacts on natural communities. Our research will provide insights into the impacts of climate change on herbivorous insects associated with Acacia: the dominant plant genus in the major climatic zones of Australia. Results and conclusions from this research will aid land-holders, government agen ....Ecology of insect herbivore assemblages: influence of climate, evolutionary history and plant traits. The results from this project will be a key reference when assessing future impacts of human-induced impacts on natural communities. Our research will provide insights into the impacts of climate change on herbivorous insects associated with Acacia: the dominant plant genus in the major climatic zones of Australia. Results and conclusions from this research will aid land-holders, government agencies and other parties in determining how important Acacia-dominated ecosystems are in conserving insect biodiversity in a range of different habitats within regional and rural Australia. Our research will also aid in a better understanding of biocontrol agents of Australian Acacia pest species here and overseas.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0882509
Funder
Australian Research Council
Funding Amount
$400,000.00
Summary
High resolution airborne radar for environmental research: soil moisture, vegetation, salinity and terrain mapping. There is a rapidly increasing demand for a range of environmental data. For example, information on soil moisture status is required for efficient and sustainable water use. Moreover, irrigation practices and large scale clearing have led to serious land degradation through increased salinity from rising water tables. Combined soil moisture and salinity measurement will provide im ....High resolution airborne radar for environmental research: soil moisture, vegetation, salinity and terrain mapping. There is a rapidly increasing demand for a range of environmental data. For example, information on soil moisture status is required for efficient and sustainable water use. Moreover, irrigation practices and large scale clearing have led to serious land degradation through increased salinity from rising water tables. Combined soil moisture and salinity measurement will provide important insight to this complex issue. Further, understanding the complex and rich biodiversity of Australian flora and its adaptation to droughts and fire is essential to ensuring Australian ecosystem longevity. Knowledge of flora changes through time as a function of soil moisture content and salinity is key to gaining this understanding.Read moreRead less
How do foraging herbivores negotiate the twin perils of plant toxins and predators? Our research uses a new framework which links the costs of both plant toxins and predation risk to determine their effects on individual foraging herbivores. This will enable a new way of analysing and predicting the impact of changes to habitat diversity on native herbivores, and the impact of invasive alien herbivore and predator species on natural ecosystems and in human crop production. This is extremely valu ....How do foraging herbivores negotiate the twin perils of plant toxins and predators? Our research uses a new framework which links the costs of both plant toxins and predation risk to determine their effects on individual foraging herbivores. This will enable a new way of analysing and predicting the impact of changes to habitat diversity on native herbivores, and the impact of invasive alien herbivore and predator species on natural ecosystems and in human crop production. This is extremely valuable in today's economic and social climate, when management must be underpinned by evidence of impact and by quantification of costs and benefits of mitigation.Read moreRead less
Is reintroduction of soil foraging animals critical for the restoration of degraded semi-arid woodlands? Locally-extinct animals are important, not only for their intrinsic value, but because they are thought to be essential for maintaining and restoring healthy ecosystems. This project will give us valuable insights into how ecosystems may have functioned prior to the loss of native animals, and how ecosystems can be restored when the animals are reintroduced. Our research will provide Australi ....Is reintroduction of soil foraging animals critical for the restoration of degraded semi-arid woodlands? Locally-extinct animals are important, not only for their intrinsic value, but because they are thought to be essential for maintaining and restoring healthy ecosystems. This project will give us valuable insights into how ecosystems may have functioned prior to the loss of native animals, and how ecosystems can be restored when the animals are reintroduced. Our research will provide Australian Wildlife Conservancy with the knowledge they need to continue their reintroductions, and information that encourages land managers to adopt strategies to ensure the survival of reintroduced animals outside of formal reserves. Read moreRead less