Unravelling the drivers of greenhouse gas emissions in estuaries. The aim of this project is to understand and quantify the factors controlling the emission of carbon dioxide, methane and nitrous oxide from estuaries. Coastal systems play a disproportionately large role in the global emissions of greenhouse gases, but this is poorly quantified. The project plans to use a combination of continuous concentration and stable isotope measurements, process measurements and advanced numerical modelling ....Unravelling the drivers of greenhouse gas emissions in estuaries. The aim of this project is to understand and quantify the factors controlling the emission of carbon dioxide, methane and nitrous oxide from estuaries. Coastal systems play a disproportionately large role in the global emissions of greenhouse gases, but this is poorly quantified. The project plans to use a combination of continuous concentration and stable isotope measurements, process measurements and advanced numerical modelling across a range of undisturbed to disturbed systems. It is intended that this project will provide information for conceptualising, calibrating and verifying models, including green-house gas production. Good models, and the data that support them, such as that provided by this study, are critical for the efficient allocation of management resources in Australian coastal systems, including by our partners. The findings from this project will have direct implications to the management, rehabilitation and protection of waterways (including biodiversity) in Australia.Read moreRead less
Stabilisation of algal biomass harvested from coal seam gas associated water to generate a renewable, high nutrient resource. This project will develop composting technology to stabilise the biomass harvested from coal seam gas ponds. A feature of the project is consideration of toxic algal metabolites, and the potential for the release and degradation of these compounds during stabilisation.
Discovery Early Career Researcher Award - Grant ID: DE180100746
Funder
Australian Research Council
Funding Amount
$365,058.00
Summary
Trait plasticity and the maintenance of functional diversity. This project aims to determine if trait plasticity mediates functional degradation of coral reefs. It will use natural environmental gradients to identify mechanisms that enable corals to persist in marginal habitats. The project will use three-dimensional imaging to measure how variability in traits influences functional redundancy. This will facilitate better predictions of the effects of environmental change on reef systems. Expect ....Trait plasticity and the maintenance of functional diversity. This project aims to determine if trait plasticity mediates functional degradation of coral reefs. It will use natural environmental gradients to identify mechanisms that enable corals to persist in marginal habitats. The project will use three-dimensional imaging to measure how variability in traits influences functional redundancy. This will facilitate better predictions of the effects of environmental change on reef systems. Expected outcomes include improved understanding of the response of coral reef ecosystems to environmental change and a framework for predicting reefs at risk of degradation. Benefits will be to both global biodiversity conservation and the provision of ecosystem services in reef dependent communities.Read moreRead less
Predicting the consequences of drought-induced mortality for tree species in a changing climate. Tree mortality will be a dramatic manifestation of climate change as drought intensifies. A pre-existing record of mortality after recent drought in Eucalyptus woodland defines the moisture sensitivity of tree species and will be related to their functional traits, population dynamics and geography. This analysis will search for generalised characters that define the species that will be most suscept ....Predicting the consequences of drought-induced mortality for tree species in a changing climate. Tree mortality will be a dramatic manifestation of climate change as drought intensifies. A pre-existing record of mortality after recent drought in Eucalyptus woodland defines the moisture sensitivity of tree species and will be related to their functional traits, population dynamics and geography. This analysis will search for generalised characters that define the species that will be most susceptible to drought and will identify how future exaggerated drought will reorganise forest communities. The findings will contribute to understanding the vulnerability and resilience of our natural ecosystems with a changing climate.Read moreRead less
Discovery Indigenous Researchers Development - Grant ID: DI100100130
Funder
Australian Research Council
Funding Amount
$180,834.00
Summary
Developing predictive tools for rapid assessment of multiple impacts, including climate change, on the marine ecosystem of Torres Strait (Australia). This project will underpin Australia's long-term commitment to maintain environmental biodiversity and sustainability in the face of synergistic effects from multiple threats. We will describe the consequences of threats and stressors on marine processes, harvested resources, and ecosystem functioning by identifying vulnerable species and habitats. ....Developing predictive tools for rapid assessment of multiple impacts, including climate change, on the marine ecosystem of Torres Strait (Australia). This project will underpin Australia's long-term commitment to maintain environmental biodiversity and sustainability in the face of synergistic effects from multiple threats. We will describe the consequences of threats and stressors on marine processes, harvested resources, and ecosystem functioning by identifying vulnerable species and habitats. We will provide management advice on balancing cultural and ecosystem integrity, economic efficiency, and ecosystem resilience under scenarios of climate and environmental change. This information is of immediate use by Australian government agencies. The project will put Australian scientists at the forefront of research focused on the adaptation of marine ecosystems to synergistic effects.Read moreRead less
Unravelling the cycling of nitrogen along a subtropical freshwater-marine continuum using a multi-isotope, multi-tracer and modelling approach. This project will significantly advance our understanding of the sources, cycling and pathways of nitrogen along a sub-tropical catchment-river-estuary. As such, the findings from this research will have direct implications to the management, rehabilitation and protection of waterways (including biodiversity) in Australia.
Hydraulic control on water use, growth and survival in tropical rainforest. This project aims to measure drought-related limits to water transport in the woody xylem tissue of trees in Australian tropical rainforests, to understand how this influences tree water use, photosynthesis, health and mortality risk. Tropical rainforests are sensitive to climate variability, especially drought, but this sensitivity is poorly understood, despite large effects regionally and globally. This project will co ....Hydraulic control on water use, growth and survival in tropical rainforest. This project aims to measure drought-related limits to water transport in the woody xylem tissue of trees in Australian tropical rainforests, to understand how this influences tree water use, photosynthesis, health and mortality risk. Tropical rainforests are sensitive to climate variability, especially drought, but this sensitivity is poorly understood, despite large effects regionally and globally. This project will compare forests that contrast strongly in seasonal drought stress, and use the information to develop a model designed for species-diverse forest, with subsequent potential global application. The understanding gained will enable widely applicable advances designed to feed through rapidly to regional- and global-scale models that inform land use, economic and social policy-making.Read moreRead less
Intervention ecology on coral reefs: a new role for fishes. In a world where few intact reefs remain, the goal of this project is to find ways to restore degraded reefs. Recent research has identified the species responsible for removing harmful algae from coral reefs, while advances in mariculture provide us with the capacity to rear these critically important reef fish species. Combining captive rearing, experimental manipulations, and a global analysis of the functional capacity of herbivorou ....Intervention ecology on coral reefs: a new role for fishes. In a world where few intact reefs remain, the goal of this project is to find ways to restore degraded reefs. Recent research has identified the species responsible for removing harmful algae from coral reefs, while advances in mariculture provide us with the capacity to rear these critically important reef fish species. Combining captive rearing, experimental manipulations, and a global analysis of the functional capacity of herbivorous fishes, in intact, degraded and human-modified systems, the research will explore the potential for restoring, or boosting, the capacity of reefs to withstand disturbance. The goal is to provide the scientific knowledge required to directly modify the key processes operating on coral reefs. Read moreRead less
Restoring ecosystem function in altered landscapes to achieve ecologicallly sustainable development goals. Mining and agriculture contribute approximately 10 per cent of Australia's gross domestic product. Hence the sustainable development of these sectors is critical to our long term economic growth and well being. However, this growth is leading to degradation of landscape ecosystem function and loss of ecosystem services. Community reaction will curtail production in these sectors where funct ....Restoring ecosystem function in altered landscapes to achieve ecologicallly sustainable development goals. Mining and agriculture contribute approximately 10 per cent of Australia's gross domestic product. Hence the sustainable development of these sectors is critical to our long term economic growth and well being. However, this growth is leading to degradation of landscape ecosystem function and loss of ecosystem services. Community reaction will curtail production in these sectors where function and services continue to be lost. This project addresses the demand for accurate scientific information, needed by industry and government, to understand ecosystem responses to change, and to develop optimal conservation interventions that take account of the costs and benefits in landscapes where the intensive mining industry intersects with extensive land uses for food and fibre production.Read moreRead less
A Changing Climate on the Great Barrier Reef: Present and Future Implications. The Great Barrier Reef is fundamental to the economy of Australia. This national and international icon needs to be preserved in the face of a changing world to ensure on-going sustainability of our marine resources. Ocean acidification, warming water temperatures, increased freshwater disrupt the sensitive symbiotic association of corals the major structure building organisms of reefs. Understanding how these enviro ....A Changing Climate on the Great Barrier Reef: Present and Future Implications. The Great Barrier Reef is fundamental to the economy of Australia. This national and international icon needs to be preserved in the face of a changing world to ensure on-going sustainability of our marine resources. Ocean acidification, warming water temperatures, increased freshwater disrupt the sensitive symbiotic association of corals the major structure building organisms of reefs. Understanding how these environmental stressors result in the decrease in coral health is fundamental to prevent loss of our coral reefs and an important step towards preserving them for future generations.Read moreRead less