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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
Complex system dynamics: restoring riparian and riverine ecosystems. Attempts to restore damaged ecosystems reveal inadequacies in theories describing ecosystem structure and function. For rivers, it is unclear whether theories relating to fluvial geomorphology and ecosystem dynamics are adequate to predict system trajectories following restoration. We will use empirical data on a degraded river to develop cross-scale models of system function, and predict ecosystem structure and dynamics follow ....Complex system dynamics: restoring riparian and riverine ecosystems. Attempts to restore damaged ecosystems reveal inadequacies in theories describing ecosystem structure and function. For rivers, it is unclear whether theories relating to fluvial geomorphology and ecosystem dynamics are adequate to predict system trajectories following restoration. We will use empirical data on a degraded river to develop cross-scale models of system function, and predict ecosystem structure and dynamics following restoration. Following revegetation of riparian habitats and replacement of large woody debris in in-stream habitats of the river, we will test theoretical predictions about changes to physical processes, biotic community assemblage rules and food webs to develop improved ecosystem-based restoration guidelines.Read moreRead less
Does Ecological Restoration Work? Invertebrate Diversity And Fundamental Ecological Processes In Restored Remnants Of Agricultural Landscapes. The restoration of native vegetation is critical to ensuring the success of long-term biodiversity conservation in Australia. Despite massive effort and expenditure on revegetation in damaged ecosystems, little is known of the effectiveness of different approaches. This project assesses the success of current practices of native vegetation restorat ....Does Ecological Restoration Work? Invertebrate Diversity And Fundamental Ecological Processes In Restored Remnants Of Agricultural Landscapes. The restoration of native vegetation is critical to ensuring the success of long-term biodiversity conservation in Australia. Despite massive effort and expenditure on revegetation in damaged ecosystems, little is known of the effectiveness of different approaches. This project assesses the success of current practices of native vegetation restoration in agricultural landscapes using insects and their ecological roles as indicators of the sustainability of restoration efforts. By describing the extent to which fundamental ecological processes have returned to restored areas this project will generate assessment techniques and data identifying priorities for future restoration efforts.Read moreRead less
Setting rehabilitation targets for regulated floodplain wetlands: linking system structure and function. Limited understanding of ecosystem processes in floodplain wetlands impedes adaptive management strategies for combating the decline in aquatic productivity and biodiversity. This project addresses three knowledge gaps critical for effective floodplain wetland management: 1) hierarchical spatial and temporal patterns of structural diversity; 2) correspondence between patterns of structural d ....Setting rehabilitation targets for regulated floodplain wetlands: linking system structure and function. Limited understanding of ecosystem processes in floodplain wetlands impedes adaptive management strategies for combating the decline in aquatic productivity and biodiversity. This project addresses three knowledge gaps critical for effective floodplain wetland management: 1) hierarchical spatial and temporal patterns of structural diversity; 2) correspondence between patterns of structural diversity, rates of system production, and food web structure, and 3) conceptual models of relationships between hydrologic regime and wetland structure and function. The project will improve understanding of the impacts of regulation on floodplain wetlands, contribute to adaptive management, and set rehabilitation targets for delivery of environmental flows for ecosystem sustainability.Read moreRead less
Do root microbiomes control seagrass response to environmental stress? The project aims to determine the role root microbes play in controlling seagrass responses to environmental stress. By integrating marine and microbial ecology, environmental genomics and ecosystem function (e.g., biogeochemical cycling), this project is significant as it will create new knowledge of the processes that confer seagrass resilience to global environmental issues. An expected outcome is an increased understandin ....Do root microbiomes control seagrass response to environmental stress? The project aims to determine the role root microbes play in controlling seagrass responses to environmental stress. By integrating marine and microbial ecology, environmental genomics and ecosystem function (e.g., biogeochemical cycling), this project is significant as it will create new knowledge of the processes that confer seagrass resilience to global environmental issues. An expected outcome is an increased understanding of how microbes control seagrass health and an enhanced capacity to develop effective restoration strategies for Australia's valuable seagrass ecosystems. Benefits include improving the extensive environmental, economic, social/cultural services Australian communities derive from seagrass ecosystems.Read moreRead less
Do artificial structures enhance the spread of exotic marine invertebrates in NSW estuaries? This project will investigate whether artificial structures in estuaries enhance the spread of exotic marine invertebrates and will examine the impacts of exotic species on rocky reef species. The introduction of exotic species is a significant threat to native biodiversity, second only to habitat destruction. These two threats are coincident in urbanised estuaries. This project will also provide infor ....Do artificial structures enhance the spread of exotic marine invertebrates in NSW estuaries? This project will investigate whether artificial structures in estuaries enhance the spread of exotic marine invertebrates and will examine the impacts of exotic species on rocky reef species. The introduction of exotic species is a significant threat to native biodiversity, second only to habitat destruction. These two threats are coincident in urbanised estuaries. This project will also provide information about the possible roles of different types of boating activity in transporting exotic species. Research on the role of artificial structures in invasions has not been done anywhere in the world and is essential if we are to understand, manage and ameliorate the threats of exotic species.Read moreRead less
Bioinvasions: the interactive effects of propagule pressure and pollution. The successful establishment of species outside their native range is an increasingly frequent occurrence and can cause reductions in biodiversity and ecosystem disruption. Bioinvasions may also cause public health risks and damage to agriculture and fisheries. Nowhere is the accelerating pace of bioinvasions more dramatic than in ports and harbours. This project will determine the effects of pollution on invasion in a ma ....Bioinvasions: the interactive effects of propagule pressure and pollution. The successful establishment of species outside their native range is an increasingly frequent occurrence and can cause reductions in biodiversity and ecosystem disruption. Bioinvasions may also cause public health risks and damage to agriculture and fisheries. Nowhere is the accelerating pace of bioinvasions more dramatic than in ports and harbours. This project will determine the effects of pollution on invasion in a marine system. This project is in the national interest because it will identify mechanisms through which the invasion of exotic species are encouraged and assist in the identification and prioritisation of effective management strategies to prevent invasion.Read moreRead less
Do pollution events facilitate biotic invasion in marine systems? This project aims to determine whether pollution affects the biological resistance of assemblages to invasion. The discharge of toxicants into coastal waters is an increasingly important source of disturbance that has the potential to make marine assemblages more susceptible to biotic invasion. The project will determine if pollution events facilitate the colonisation, persistence and spread of non-native species and how initial a ....Do pollution events facilitate biotic invasion in marine systems? This project aims to determine whether pollution affects the biological resistance of assemblages to invasion. The discharge of toxicants into coastal waters is an increasingly important source of disturbance that has the potential to make marine assemblages more susceptible to biotic invasion. The project will determine if pollution events facilitate the colonisation, persistence and spread of non-native species and how initial assemblage diversity modifies this response. The generality of several important ecological hypotheses developed in plant communities are tested in marine systems for the first time and extended to include the role of toxic disturbances.Read moreRead less
Restoring & future-proofing the biocultural values of endangered seagrasses. This project aims to develop best-practice methods for the biocultural restoration of the endangered seagrass Posidonia australis. This species is highly productive, supports fisheries and biodiversity, and plays a key role in mitigating climate change. This project will generate valuable new genetic information to guide restoration strategies including climate-adjusted genotypes. Working with Indigenous groups, we aim ....Restoring & future-proofing the biocultural values of endangered seagrasses. This project aims to develop best-practice methods for the biocultural restoration of the endangered seagrass Posidonia australis. This species is highly productive, supports fisheries and biodiversity, and plays a key role in mitigating climate change. This project will generate valuable new genetic information to guide restoration strategies including climate-adjusted genotypes. Working with Indigenous groups, we aim to document and restore cultural values associated with Posidonia. Working with industrial designers, we seek to develop cost-effective techniques to scale-up seagrass restoration. This research should provide significant environmental, economic, social and cultural benefits by improving seagrass restoration.Read moreRead less
Restoring diverse native vegetation using drone-based precision seeding . This project aims to make drone technology a viable solution for scaling up the restoration of native vegetation on degraded land. By integrating new research in plant ecology, microbiology and environmental economics the project aims to fill key knowledge gaps about the viability and application of drones in restoration. Expected outcomes are world-first research into the delivery of beneficial soil microbes using drones ....Restoring diverse native vegetation using drone-based precision seeding . This project aims to make drone technology a viable solution for scaling up the restoration of native vegetation on degraded land. By integrating new research in plant ecology, microbiology and environmental economics the project aims to fill key knowledge gaps about the viability and application of drones in restoration. Expected outcomes are world-first research into the delivery of beneficial soil microbes using drones and the first assessment globally of the cost-effectiveness of drone restoration utilizing data from spatial analysis and extensive field trials. This should provide wide-ranging benefits for local land managers restoring remote degraded land and aid in reversing the cumulative effects of habitat loss on biodiversity. Read moreRead less