Pheromone attenuation: signal perception in changing atmospheric landscapes. Insects use chemical signals, or pheromones, to communicate with conspecifics. To convey information, the pheromone molecules must pass through the atmosphere and physically interact with receptors, typically located on the antennae of the receiver. Pheromones, like other organic compounds, are degraded by ozone, UV light, and radicals. While we know that pheromone plumes attenuate through the dispersal of molecules, th ....Pheromone attenuation: signal perception in changing atmospheric landscapes. Insects use chemical signals, or pheromones, to communicate with conspecifics. To convey information, the pheromone molecules must pass through the atmosphere and physically interact with receptors, typically located on the antennae of the receiver. Pheromones, like other organic compounds, are degraded by ozone, UV light, and radicals. While we know that pheromone plumes attenuate through the dispersal of molecules, the additional impact of pheromone degradation has been ignored. Our project aims to highlight the significance of odour survival for insect chemical communication by examining how atmospheric conditions, including air pollution, affects signal integrity, antennal morphology and signal perception.Read moreRead less
Impacts of deforestation and afforestation on greenhouse gas emissions, and carbon and water resources in the Daly River catchment, north Australia. Over the last decade, north Australia have been viewed as a potentially exploitable resource, given issues of salinisation, soil acidification, over-allocation of water resources and rainfall declines in south Australian agricultural regions. Improved pastures and plantation forestry are two land uses that may expand in the NT. Clearing of savanna v ....Impacts of deforestation and afforestation on greenhouse gas emissions, and carbon and water resources in the Daly River catchment, north Australia. Over the last decade, north Australia have been viewed as a potentially exploitable resource, given issues of salinisation, soil acidification, over-allocation of water resources and rainfall declines in south Australian agricultural regions. Improved pastures and plantation forestry are two land uses that may expand in the NT. Clearing of savanna vegetation would be required, with implications for greenhouse gas emissions, soil health, water resources and dry season environmental flows. This project will track greenhouse emissions and water use from uncleared and cleared savanna that has been converted to pasture and timber plantations, providing critical understanding of the environmental implication of such land use change in savanna.Read moreRead less
Optimising seed sourcing for effective ecological restoration. This project aims to address the sourcing of native seed for ecological restoration under global change. The great demand for native seed to deliver ecological restoration provides a clear need and responsibility to use this seed as efficiently as possible. This project expects to develop detailed new knowledge that links plant and environmental genomics, plant physiology, seed and soil biology in embedded experiments at post-mining ....Optimising seed sourcing for effective ecological restoration. This project aims to address the sourcing of native seed for ecological restoration under global change. The great demand for native seed to deliver ecological restoration provides a clear need and responsibility to use this seed as efficiently as possible. This project expects to develop detailed new knowledge that links plant and environmental genomics, plant physiology, seed and soil biology in embedded experiments at post-mining rehabilitation sites. Expected outcomes include clear industry guidelines that refine seed sourcing strategies for ecological restoration for current and future climates. This should provide significant benefits for improved ecological restoration outcomes when using native seed today and into the future.Read moreRead less
Reproducibility and open science in environmental research. The goal of this project is to improve the reproducibility and transparency of environmental science. Disturbingly low levels of reproducibility have recently been uncovered in other disciplines, and there are good reasons to suspect the same conditions in environmental science. However, it has thus far been excused from evaluation because of the large spatial scales, long time horizons and dependencies among processes that prohibit dir ....Reproducibility and open science in environmental research. The goal of this project is to improve the reproducibility and transparency of environmental science. Disturbingly low levels of reproducibility have recently been uncovered in other disciplines, and there are good reasons to suspect the same conditions in environmental science. However, it has thus far been excused from evaluation because of the large spatial scales, long time horizons and dependencies among processes that prohibit direct replication of empirical field research. The project plans to assess the reproducibility of environmental research and develop systematic review methods that account for bias in published research. In this way, it seeks to contribute to the standards for statistical inference and reporting in the discipline, and facilitate a cultural shift to ‘Open Science’ to ensure a more reliable evidence base for environmental decisions. Read moreRead less
Reconciling competing objectives for the design of marine reserve networks: biodiversity, food security, and local equity in benefits. This project uses a decision-theoretic framework to balance the often conflicting marine conservation objectives of preserving biodiversity and building food security for local communities in the socially and ecologically complex region of the Coral Triangle. A new reserve design will boost biodiversity conservation and better support livelihoods.
Operationalizing marine reserve design for rebuilding tropical fisheries. Operationalizing marine reserve design for rebuilding tropical fisheries. This project intends to maximise the scope for rebuilding reef fisheries while ensuring short-term levels do not become too low. Like many developing countries, Indonesia wishes to rebuild its heavily over-exploited coral reef fisheries. Marine reserves allow fish populations to recover and replenish fished areas. However, because reserves remove fis ....Operationalizing marine reserve design for rebuilding tropical fisheries. Operationalizing marine reserve design for rebuilding tropical fisheries. This project intends to maximise the scope for rebuilding reef fisheries while ensuring short-term levels do not become too low. Like many developing countries, Indonesia wishes to rebuild its heavily over-exploited coral reef fisheries. Marine reserves allow fish populations to recover and replenish fished areas. However, because reserves remove fishing grounds, fish catches tend to decrease in the short-term while fish recover in reserves; a process that can take a decade. Loss of yield can be so burdensome that managers abandon fisheries. This research is intended to improve the economic security of fishers and food security, and inform World Bank and Australian aid programs.Read moreRead less
Overcoming multiple constraints to wetland forest restoration. This project aims to determine the efficacy of different approaches for restoring wetland forests at the landscape scale. The death and decline of Victoria’s wetland forests, crucial habitat for the endangered helmeted honeyeater and Leadbeater's possum, most likely result from modified flooding patterns, low native tree and shrub recruitment and increased competition from understorey plants. The project intends to reinstate a more n ....Overcoming multiple constraints to wetland forest restoration. This project aims to determine the efficacy of different approaches for restoring wetland forests at the landscape scale. The death and decline of Victoria’s wetland forests, crucial habitat for the endangered helmeted honeyeater and Leadbeater's possum, most likely result from modified flooding patterns, low native tree and shrub recruitment and increased competition from understorey plants. The project intends to reinstate a more natural flood regime, planting native species and reducing competition from dense understorey vegetation. In this way, the project aims to test and advance ecological theory, guide wetland restoration and inform management plans for saving Victoria’s iconic fauna.Read moreRead less
Annual rainfall variability and extreme drought over the late Holocene. This project aims to understand long-term rainfall variability for Australia by developing a network of extended, high resolution rainfall records from tree rings. How anthropogenic changes to the atmosphere have influenced changing rainfall patterns across Australia is unclear. By extracting climatic information from tree growth rings across a latitudinal gradient from the subtropical north to the south coast of western Aus ....Annual rainfall variability and extreme drought over the late Holocene. This project aims to understand long-term rainfall variability for Australia by developing a network of extended, high resolution rainfall records from tree rings. How anthropogenic changes to the atmosphere have influenced changing rainfall patterns across Australia is unclear. By extracting climatic information from tree growth rings across a latitudinal gradient from the subtropical north to the south coast of western Australia, the project will extend hydroclimatic records by several centuries, to identify the frequency and extent of extreme droughts across the continent. Outcomes are expected to provide appropriate context for evaluating and adapting to climate change, allowing climate modellers, agricultural producers and other industries to improve forecasts of likely change for risk management.Read moreRead less
Managing urban trees. Managing urban trees. This project aims to explore the effects of different urban tree types and plantings on people and wildlife in Melbourne, Moreland and Ballarat so they can better plan their future urban forests. Local governments spend millions of dollars planting and maintaining urban trees every year. Research provides little guidance to these land managers when making critical decisions in a rapidly changing social and physical environment. This project will combin ....Managing urban trees. Managing urban trees. This project aims to explore the effects of different urban tree types and plantings on people and wildlife in Melbourne, Moreland and Ballarat so they can better plan their future urban forests. Local governments spend millions of dollars planting and maintaining urban trees every year. Research provides little guidance to these land managers when making critical decisions in a rapidly changing social and physical environment. This project will combine tree inventory data with new information on the social and ecological effects of trees (e.g. human well-being, bird diversity). This research is expected to guide future tree management decisions that have better social and environmental outcomes for Australia’s cities.Read moreRead less
Resource allocation for efficient environmental management. The world faces a range of pressing environmental problems such as loss of biodiversity, invasion of pests and weeds, high greenhouse gas emissions and emerging infectious diseases. This research will show how to manage environmental problems most efficiently, especially when the state of the world and the benefits of management are uncertain.