A biogeochemical study of a coastal lagoon - tests of a mechanistic model. The water quality and seagrass biomass of intermittently closed-open lagoons (ICOLs), which dominate the NSW coast, are declining in response to development and their low flushing rates. A combination of field sampling, biogeochemical analysis and ecological modelling will be used to improve our quantitative understanding and prediction of ecological processes in small estuaries. A novel, mechanistic model of nutrients- ....A biogeochemical study of a coastal lagoon - tests of a mechanistic model. The water quality and seagrass biomass of intermittently closed-open lagoons (ICOLs), which dominate the NSW coast, are declining in response to development and their low flushing rates. A combination of field sampling, biogeochemical analysis and ecological modelling will be used to improve our quantitative understanding and prediction of ecological processes in small estuaries. A novel, mechanistic model of nutrients-phytoplankton-seagrass-zooplankton will be improved with detailed sampling of Smiths Lake on the central NSW coast. Simulations indicative of future development, fish re-stocking or management options will indicate the cost-benefit on estuarine ecosystems.Read moreRead less
Induction of multiple environmental stress tolerance in Australian native species for land rehabilitation using benzoic acid derivatives. The aim of this project is to develop methods to induce abiotic (drought, temperature, salinity) and biotic (die-back disease) stress tolerance in Australian plants by simple treatment using signalling molecules (benzoic acid derivatives) for conservation and land rehabilitation. These molecules occur naturally in plants and non-toxic. Plant establishment in r ....Induction of multiple environmental stress tolerance in Australian native species for land rehabilitation using benzoic acid derivatives. The aim of this project is to develop methods to induce abiotic (drought, temperature, salinity) and biotic (die-back disease) stress tolerance in Australian plants by simple treatment using signalling molecules (benzoic acid derivatives) for conservation and land rehabilitation. These molecules occur naturally in plants and non-toxic. Plant establishment in rehabilitation programs are very low due to exposure to stress. Furthermore, the loss to agricultural and horticultural industries resulting from environmental stresses is very high. Outcome of the project is the availability of plants with multiple stress tolerance enhancing success of rehabilitation programs with flow-through benefits to horticultural and agricultural industries.Read moreRead less
Innovative systematic conservation planning for Indigenous Land and Sea Country: Torres Strait as a case study. Australia’s Indigenous communities have responsibilities for managing their Land and Sea Country in partnership with governments. Much of Australia’s globally significant biodiversity occurs in Indigenous country. Effective management requires plans to be developed using both western science and Traditional Knowledge to enable local communities to protect both their culture and biodive ....Innovative systematic conservation planning for Indigenous Land and Sea Country: Torres Strait as a case study. Australia’s Indigenous communities have responsibilities for managing their Land and Sea Country in partnership with governments. Much of Australia’s globally significant biodiversity occurs in Indigenous country. Effective management requires plans to be developed using both western science and Traditional Knowledge to enable local communities to protect both their culture and biodiversity. This project will develop innovative scientific tools to assist Indigenous communities and governments to design and implement systematic conservation planning initiatives ‘on country’, using Torres Strait as a case study. The tools that are developed will have general relevance to Australian Indigenous communities and developing countries. Read moreRead less
Interactions between denitrification and carbon mineralisation in permeable sediments: A new approach using state of the art instruments and modelling. Excessive nutrient release from manmade sources may lead to algal blooms in aquatic environments. Nitrogen is a nutrient of particular concern in coastal waters because it controls algal growth. Aquatic environments are able to cleanse themselves of excess nitrogen by a process known as denitrification which happens in the sediments. Amazingly ....Interactions between denitrification and carbon mineralisation in permeable sediments: A new approach using state of the art instruments and modelling. Excessive nutrient release from manmade sources may lead to algal blooms in aquatic environments. Nitrogen is a nutrient of particular concern in coastal waters because it controls algal growth. Aquatic environments are able to cleanse themselves of excess nitrogen by a process known as denitrification which happens in the sediments. Amazingly, we have no understanding of how denitrification works in sands despite the fact that most of the coastline is covered in sand. The results from this project will provide critical information needed to predict and reduce algal blooms in coastal waters.Read moreRead less
Grazing as a management tool for biodiversity conservation: adaptive management strategies for threatened grassland ecosystems. Lowland temperate grasslands are threatened Australian ecosystems that support an important, and in many cases threatened, biota. These habitats are significantly under-represented in the reserve system, and occur in bioregions that have been subjected to extensive vegetation clearing, intensive production and high stocking densities. This project will develop strategie ....Grazing as a management tool for biodiversity conservation: adaptive management strategies for threatened grassland ecosystems. Lowland temperate grasslands are threatened Australian ecosystems that support an important, and in many cases threatened, biota. These habitats are significantly under-represented in the reserve system, and occur in bioregions that have been subjected to extensive vegetation clearing, intensive production and high stocking densities. This project will develop strategies for maintenance of species and habitat diversity in grasslands through the application of adaptive management principles informed by rigorous ecological research. Outcomes include best-practice approaches to on- and off-reserve management in grazed ecosystems, and better approaches to the interaction between research and biodiversity conservationRead moreRead less
Marine conservation planning for persistent coral reef communities: Incorporating connectivity and resilience. Australia's biological diversity underpins much of our economic wealth - for example the remarkable diversity of coral reefs fuels a multibillion dollar tourism industry. However, despite substantial efforts to conserve marine ecosystems, Australian coral reefs are at increasing risk from climate change related catastrophes. To counteract this trend, we must choose marine reserve networ ....Marine conservation planning for persistent coral reef communities: Incorporating connectivity and resilience. Australia's biological diversity underpins much of our economic wealth - for example the remarkable diversity of coral reefs fuels a multibillion dollar tourism industry. However, despite substantial efforts to conserve marine ecosystems, Australian coral reefs are at increasing risk from climate change related catastrophes. To counteract this trend, we must choose marine reserve networks using methods that account for the dynamic nature of climate change and reef community responses to maximise the persistence of reef biodiversity. The new theory and methods will enable us to create more effective and economically efficient marine reserve systems.Read moreRead less
Identifying and creating essential habitat for rare Australian intertidal molluscs. Coastal development in Australia causes major changes to natural habitats. Obligations to conserve biodiversity are impossible without reliable information about how animals respond to habitat and how best to restore damaged habitat. Current management treats habitats as large-scale units and ignores fine-scale use of habitat by animals. This project will provide essential understanding to guide policy about coas ....Identifying and creating essential habitat for rare Australian intertidal molluscs. Coastal development in Australia causes major changes to natural habitats. Obligations to conserve biodiversity are impossible without reliable information about how animals respond to habitat and how best to restore damaged habitat. Current management treats habitats as large-scale units and ignores fine-scale use of habitat by animals. This project will provide essential understanding to guide policy about coastal conservation, by providing ecologically realistic understanding of associations between rare invertebrates and habitat. New protocols to measure these associations and success of restoration, will be applicable to any rare species in any complex habitat, increasing present capabilities for conservation.Read moreRead less
Coral reef connectivity: an empirical and theoretical synthesis. Australia possesses the greatest marine biodiversity of any first world country and this biodiversity is a major contributor to our economic wealth. Nonetheless, Australia's coral reef communities are threatened by various human activities and climate change. Wisely designed systems of marine reserves are critical to mitigating threats to coral reefs, but existing approaches do not incorporate crucial information about ecological c ....Coral reef connectivity: an empirical and theoretical synthesis. Australia possesses the greatest marine biodiversity of any first world country and this biodiversity is a major contributor to our economic wealth. Nonetheless, Australia's coral reef communities are threatened by various human activities and climate change. Wisely designed systems of marine reserves are critical to mitigating threats to coral reefs, but existing approaches do not incorporate crucial information about ecological connections between reefs. We will use graph theory metrics to identify priority reefs for protection based on empirical genetic and hydrological connectivity information. In addition, we will determine the sensitivity of these priorities to climate change scenarios.Read moreRead less
Integrated, interactive and systematic Marine Protected Area design for sustainability of South Australian marine environments: A GIS-based, spatial optimisation approach. This project aims to enhance MPA design in SA by integrating systematic conservation plannning (SCP), spatial optimisation and Geographic Information Systems (GIS). New, integrated Integer Programming (IP) models will be built based on established SCP principles and nationally agreed marine conservation criteria. The IP models ....Integrated, interactive and systematic Marine Protected Area design for sustainability of South Australian marine environments: A GIS-based, spatial optimisation approach. This project aims to enhance MPA design in SA by integrating systematic conservation plannning (SCP), spatial optimisation and Geographic Information Systems (GIS). New, integrated Integer Programming (IP) models will be built based on established SCP principles and nationally agreed marine conservation criteria. The IP models will be tightly coupled with the GIS to create an interactive Spatial Decision Support Tool (SDSS) for systematic MPA design - the first of its kind. The SDSS will enable real-time, systematic MPA design and will provide flexible design options for a comprehensive, adequate, representative and efficient MPA system for SA.Read moreRead less
Conservation planning: incorporating patch dynamics and climate change to achieve better outcomes. This research will make significant contributions to planning for An Environmentally Sustainable Australia. Key outcomes will include guidelines for including, for the first time, the patch dynamics of coral bleaching and pelagic productivity in conservation planning. By using an Australian icon, the Great Barrier Reef, as the case study for this research, the findings will be directly applicable a ....Conservation planning: incorporating patch dynamics and climate change to achieve better outcomes. This research will make significant contributions to planning for An Environmentally Sustainable Australia. Key outcomes will include guidelines for including, for the first time, the patch dynamics of coral bleaching and pelagic productivity in conservation planning. By using an Australian icon, the Great Barrier Reef, as the case study for this research, the findings will be directly applicable and implementable. Furthermore, this study will result in an understanding of the potential effect of climate change on patch dynamics, and will provide guidelines and theory for planning for such changes. This research will enable Australia to effectively protect its biodiversity and to relate this knowledge to its neighbours.Read moreRead less