Ecosystem Assembly in Old Fields in the Western Australian Wheatbelt. This project aims to examine the process of ecosystem re-assembly on land which is taken out of agricultural production and left without further management. Land abandonment is common in many parts of the world and could increase dramatically in Australia due to land degradation, salinity and structural change. We will investigate the factors which influence whether native plant species can recolonise abandoned farmland, usin ....Ecosystem Assembly in Old Fields in the Western Australian Wheatbelt. This project aims to examine the process of ecosystem re-assembly on land which is taken out of agricultural production and left without further management. Land abandonment is common in many parts of the world and could increase dramatically in Australia due to land degradation, salinity and structural change. We will investigate the factors which influence whether native plant species can recolonise abandoned farmland, using field and greenhouse studies. We will do this within the context of ecosystem assembly, thereby answering a practical question and also providing input to a conceptual area which is currently of great interest inRead moreRead less
Setting and achieving realistic restoration goals in human-dominated ecosystems. Federal and state programs and community and NGO activities increasingly focus on ecosystem restoration as a tool in conservation and natural resource management. Clearer understanding of ecosystem dynamics and better articulation of realistic restoration goals can lead to much improved restoration success and better investment of government and private funds. This project will provide a better understanding of ecos ....Setting and achieving realistic restoration goals in human-dominated ecosystems. Federal and state programs and community and NGO activities increasingly focus on ecosystem restoration as a tool in conservation and natural resource management. Clearer understanding of ecosystem dynamics and better articulation of realistic restoration goals can lead to much improved restoration success and better investment of government and private funds. This project will provide a better understanding of ecosystem dynamics both under current conditions and also as influenced by future environmental changes. The contribution to the theoretical and conceptual development of the field of restoration ecology will increase the profile of Australian science and enhance our reputation as leaders in this field. Read moreRead less
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
How does soil fertility affect jarrah forest rehabilitation after mining? This project will examine the effect of fertiliser additions on the species composition and functional diversity of jarrah forest that develops after bauxite-mining. It is directly relevant to the achievement of the sustainable use of natural resources in Australia. Expected outcomes are best-practice management guidelines regarding the amount of fertiliser that results in the most effective achievement of completion cri ....How does soil fertility affect jarrah forest rehabilitation after mining? This project will examine the effect of fertiliser additions on the species composition and functional diversity of jarrah forest that develops after bauxite-mining. It is directly relevant to the achievement of the sustainable use of natural resources in Australia. Expected outcomes are best-practice management guidelines regarding the amount of fertiliser that results in the most effective achievement of completion criteria, and also an improved understanding of the consequences of fertiliser application on the biodiversity (plants and soil biota) and ecosystem function of rehabilitated forest ecosystems. 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
The evolution and maintenance of specificity, mutualism and diversity in plant-soil microbe interactions. This research will significantly advance knowledge regarding the evolution of mutualisms between plant and soil microbes. Results will provide valuable data on the importance of below-ground microbial community structure to growth and productivity of an ecologically important component of the Australian flora (Acacia spp.), and contribute to the development of best ecosystem restoration prac ....The evolution and maintenance of specificity, mutualism and diversity in plant-soil microbe interactions. This research will significantly advance knowledge regarding the evolution of mutualisms between plant and soil microbes. Results will provide valuable data on the importance of below-ground microbial community structure to growth and productivity of an ecologically important component of the Australian flora (Acacia spp.), and contribute to the development of best ecosystem restoration practices. Furthermore, it will see the continued development of the Acacia-rhizobia system as a world-class model for exploring interactions between perennial legumes and microbial symbionts. The research also investigates the adaptability and potential for rapid evolution of critical elements of the soil microflora to environmental change.Read moreRead less
Novel approaches to ecologically sustainable and safe rehabilitation of gold mine tailings. Gold is a major export commodity for Australia and the gold mining industry provides employment and infrastructure for rural Australian communities. However, gold is often found in arsenopyrite rich ore bodies which, after the extraction process, have the potential to release toxic quantities of arsenic into the environment. The University of Melbourne, Stawell Gold Mines P/L. and Native Seeds P/L. are co ....Novel approaches to ecologically sustainable and safe rehabilitation of gold mine tailings. Gold is a major export commodity for Australia and the gold mining industry provides employment and infrastructure for rural Australian communities. However, gold is often found in arsenopyrite rich ore bodies which, after the extraction process, have the potential to release toxic quantities of arsenic into the environment. The University of Melbourne, Stawell Gold Mines P/L. and Native Seeds P/L. are collaborating to ensure the rehabilitation of arseniferous wastes is environmentally safe and sustainable. Research will investigate the selection of plant species, factors affecting plant survival, plant uptake of arsenic and prevention of excess movement of arsenic into the food-chain.Read moreRead less
Australian Laureate Fellowships - Grant ID: FL0992007
Funder
Australian Research Council
Funding Amount
$3,000,000.00
Summary
Intervention ecology: managing ecosystems in the 21st century. The research will tackle fundamental issues relating to how we manage and restore ecosystems in Australia (and worldwide) in the face of rapid environmental change, an issue recognised as being of increasingly pressing importance. It will provide a better understanding of ecosystem dynamics in the face of future environmental changes, and develop an approach that considers different forms of management intervention, how these might b ....Intervention ecology: managing ecosystems in the 21st century. The research will tackle fundamental issues relating to how we manage and restore ecosystems in Australia (and worldwide) in the face of rapid environmental change, an issue recognised as being of increasingly pressing importance. It will provide a better understanding of ecosystem dynamics in the face of future environmental changes, and develop an approach that considers different forms of management intervention, how these might be triggered and what the ecological and social consequences might be. This will contribute both to the theoretical and conceptual development of ecology, restoration ecology and conservation biology and to policy and management in Australia and elsewhere.Read moreRead less
Successful rehabilitation of species-rich heathlands after mining for heavy minerals. The Eneabba sandplains are located in one of the world's 25 'hotspots' for biodiversity and part of it is mined for heavy minerals. We seek to evaluate the ecology of rehabilitated minesites by comparing their species composition, spatial arrangement, functional attributes and response to experimental fire with that of the surrounding heathlands. This will enable us to gauge the new system's resilience to fire ....Successful rehabilitation of species-rich heathlands after mining for heavy minerals. The Eneabba sandplains are located in one of the world's 25 'hotspots' for biodiversity and part of it is mined for heavy minerals. We seek to evaluate the ecology of rehabilitated minesites by comparing their species composition, spatial arrangement, functional attributes and response to experimental fire with that of the surrounding heathlands. This will enable us to gauge the new system's resilience to fire and recommend corrective measures necessary to modify the pathway of restoration of the post-mining ecosystems as required. Because we take spatial relations and disturbance into account our approach is innovative and relevant to restoration ecology generally.Read moreRead less