A general theory for ecological trait-strategy dimensions. This project aims to bridge the gap in understanding of ecological strategies between plant and animal ecology, globally, using ants. It will test how environmental change influences the success of species, based on ecological strategies, and the consequences for ecosystem function. This project is expected to make a significant contribution to generality and prediction in ecology. Expected outcomes of this project include theory deve ....A general theory for ecological trait-strategy dimensions. This project aims to bridge the gap in understanding of ecological strategies between plant and animal ecology, globally, using ants. It will test how environmental change influences the success of species, based on ecological strategies, and the consequences for ecosystem function. This project is expected to make a significant contribution to generality and prediction in ecology. Expected outcomes of this project include theory development and application and enhanced global networks of trait researchers. Intended benefits include improved ecological theory, an enhanced capacity to predict how global change will affect organisms and increased understanding of the cascading effects of changes for ecosystem function.Read moreRead less
Tree-mediated methane fluxes: A new frontier in the global carbon cycle. Methane is an extremely potent greenhouse gas. Recent evidence suggests that tree-mediated fluxes may be a significant, but overlooked source of methane to the atmosphere. This project aims to quantify the magnitude and drivers of tree-mediated methane fluxes from Australia’s dominant forest types. Innovatively, we will be using a novel combination of empirical field based measurements, gas tracer experiments, microbial ana ....Tree-mediated methane fluxes: A new frontier in the global carbon cycle. Methane is an extremely potent greenhouse gas. Recent evidence suggests that tree-mediated fluxes may be a significant, but overlooked source of methane to the atmosphere. This project aims to quantify the magnitude and drivers of tree-mediated methane fluxes from Australia’s dominant forest types. Innovatively, we will be using a novel combination of empirical field based measurements, gas tracer experiments, microbial analysis and modelling methods. Expected outcomes are a mechanistic understanding of tree-mediated methane fluxes, helping to constrain regional, national and global methane budgets. The results of this study will help inform publicly funded greenhouse gas abatement strategies, ensuring a maximal return on investment.Read moreRead less
Predicting biodiversity distribution on the Antarctic continental shelf. This project aims to develop an international database of underwater observations to predict the distribution of seafloor biodiversity over the entire Antarctic continental shelf for the present day and to 2100. Antarctic seafloor communities are unique and highly diverse, but their distribution is poorly known because biological data are sparse. These predictions depend on a unique and validated approach to estimate the pr ....Predicting biodiversity distribution on the Antarctic continental shelf. This project aims to develop an international database of underwater observations to predict the distribution of seafloor biodiversity over the entire Antarctic continental shelf for the present day and to 2100. Antarctic seafloor communities are unique and highly diverse, but their distribution is poorly known because biological data are sparse. These predictions depend on a unique and validated approach to estimate the present and future redistribution of surface primary production to the seafloor, and will enable calculating the amount of atmospheric carbon captured and stored at the seafloor. The maps will be at an unprecedented resolution of around 2 kilometres, and be invaluable tools underpinning policy, management and future science.Read moreRead less
Mechanistic responses of phosphorus-limited forests to CO2 enrichment. Carbon dioxide continues to accumulate in the atmosphere, driven by human emissions. The future fate of the global forest carbon sink, which significantly slows CO2 increase in the atmosphere, helping to dampen climate change, remains poorly constrained, hindering mitigation and adaptation planning. A key gap concerns the role of phosphorus, crucial in limiting the productivity of Australian woodlands and tropical forests. Mo ....Mechanistic responses of phosphorus-limited forests to CO2 enrichment. Carbon dioxide continues to accumulate in the atmosphere, driven by human emissions. The future fate of the global forest carbon sink, which significantly slows CO2 increase in the atmosphere, helping to dampen climate change, remains poorly constrained, hindering mitigation and adaptation planning. A key gap concerns the role of phosphorus, crucial in limiting the productivity of Australian woodlands and tropical forests. Model-data fusion based on the results of a crossed CO2 x P experiment in Eucalyptus forest - EucFACE - will help close this vital knowledge gap, and leverage new mechanistic knowledge in a leading global model used for climate and emissions assessment.Read moreRead less
Shallow water carbonate sediment dissolution in the global carbon cycle. Carbonate sediment dissolution is a globally significant process, but poorly understood in shallow marine waters. This project will determine whether the combined effect of organic matter, ocean acidification and pore water flow in shallow water carbonate sediments increases the release of calcium and alkalinity to the ocean. This project is significant because this release has not previously been accounted for and may lead ....Shallow water carbonate sediment dissolution in the global carbon cycle. Carbonate sediment dissolution is a globally significant process, but poorly understood in shallow marine waters. This project will determine whether the combined effect of organic matter, ocean acidification and pore water flow in shallow water carbonate sediments increases the release of calcium and alkalinity to the ocean. This project is significant because this release has not previously been accounted for and may lead to an additional uptake of atmospheric carbon dioxide into the global ocean, maybe some additional buffering against ocean acidification, but unfortunately, maybe also a loss of carbonate ecosystems. The outcomes of this project will make a significant contribution to our understanding of the global carbon cycle.
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Apex predator control of nutrient dynamics. This project aims to understand the mechanisms through which predators can control ecosystem nutrient dynamics. Ecology has been dominated for decades by the top-down/bottom-up paradigm. The project will use experiments and remote sensing observations to examine the spatial structure of feedback loops between a top predator and nutrient cycles. The expected outcome is a mechanistic and scalable understanding of the spatial distribution of nutrients and ....Apex predator control of nutrient dynamics. This project aims to understand the mechanisms through which predators can control ecosystem nutrient dynamics. Ecology has been dominated for decades by the top-down/bottom-up paradigm. The project will use experiments and remote sensing observations to examine the spatial structure of feedback loops between a top predator and nutrient cycles. The expected outcome is a mechanistic and scalable understanding of the spatial distribution of nutrients and push ecosystems towards alternate states. The project will provide innovative approaches to scale-up ecological data that can be used to inform the decisions of policy makers and land managers.Read moreRead less
A legal framework for managing mangrove ecosystem services. This project aims to examine legal and policy challenges, together with expert opinion, to generate a legal framework that recognises and protects the multiple ecosystem services provided by mangroves. Global rates of mangrove loss are of great concern because of the significant ecosystem services they provide in coastal environments. In the Australian context it is important that national and state legal frameworks operate efficiently ....A legal framework for managing mangrove ecosystem services. This project aims to examine legal and policy challenges, together with expert opinion, to generate a legal framework that recognises and protects the multiple ecosystem services provided by mangroves. Global rates of mangrove loss are of great concern because of the significant ecosystem services they provide in coastal environments. In the Australian context it is important that national and state legal frameworks operate efficiently to manage and protect these valuable resources. The framework developed in this project will be adaptable to provide significant benefits to other fragile ecosystems in Australia.Read moreRead less
The role of drought-stress and insect attack on rainforest plant health. This project aims to examine the vulnerability of tropical plants to drought and insect attack in a large-scale field experiment. We will pioneer a new research approach that focuses on the causes and stages of decline in plant health prior to death, in order to identify the characteristics of plant species that make them more susceptible to drought and insect attack. Expected outcomes of this project include an improved ca ....The role of drought-stress and insect attack on rainforest plant health. This project aims to examine the vulnerability of tropical plants to drought and insect attack in a large-scale field experiment. We will pioneer a new research approach that focuses on the causes and stages of decline in plant health prior to death, in order to identify the characteristics of plant species that make them more susceptible to drought and insect attack. Expected outcomes of this project include an improved capacity to predict the function and composition of future forests. This project will provide significant benefits to communities concerned with the direct and indirect effects of droughts in protected areas, forestry reserves and agriculture. Read moreRead less
Fire regimes and demographic responses interact to threaten woody species. This project aims to extend and test an Interval Squeeze conceptual model which predicts fire-climate interaction effects on plant species persistence. Complex processes affect future species persistence, and an evidence-based conceptual framework is needed. Working across two continents, this project will quantify the effects of projected shortening of fire intervals, lower rainfall and elevated temperatures on woody pla ....Fire regimes and demographic responses interact to threaten woody species. This project aims to extend and test an Interval Squeeze conceptual model which predicts fire-climate interaction effects on plant species persistence. Complex processes affect future species persistence, and an evidence-based conceptual framework is needed. Working across two continents, this project will quantify the effects of projected shortening of fire intervals, lower rainfall and elevated temperatures on woody plant species. Field evidence spans global change predictions, ecosystems and species representing key system dominants and functional response types. The project will synthesise this data into larger simulation models and extend its conceptual framework to directly inform conservation and fire management.Read moreRead less
Identifying critical thresholds to prioritise lake restoration. This project aims to conduct a global assessment of lake water quality and prioritise lakes for restoration. This project expects to generate new understanding of trends in lake condition based on application of geospatial frameworks and models for nutrient loads and in-lake trophic state. This information will help to quantify the magnitude of actions required to restore lakes at landscape scale. The intended outcome is a global at ....Identifying critical thresholds to prioritise lake restoration. This project aims to conduct a global assessment of lake water quality and prioritise lakes for restoration. This project expects to generate new understanding of trends in lake condition based on application of geospatial frameworks and models for nutrient loads and in-lake trophic state. This information will help to quantify the magnitude of actions required to restore lakes at landscape scale. The intended outcome is a global atlas linking catchment hydrology, nutrient loads and lake attributes. Expected outcomes of this project include improved methods to predict effects of land use and climate change on lakes across the globe, and recommendations to water resource managers on investing in the restoration of lakes across the landscape.Read moreRead less