Managing for persistence of the saproxylic biota in production forest landscapes. The pattern of 'fragmentation' and 'matrix alteration' being examined in this study mirrors not just other areas of Tasmania but also much of south-eastern Australia. The research addresses a conservation biology issue in a new and novel way and has been developed with, and is supported by an industry partner working in multiple-use forest management, so the research provides both immediate applied and strategic o ....Managing for persistence of the saproxylic biota in production forest landscapes. The pattern of 'fragmentation' and 'matrix alteration' being examined in this study mirrors not just other areas of Tasmania but also much of south-eastern Australia. The research addresses a conservation biology issue in a new and novel way and has been developed with, and is supported by an industry partner working in multiple-use forest management, so the research provides both immediate applied and strategic outcomes. These outcomes directly relate to forest sustainability especially the management of the biodiverse dead wood habitat including the harvesting of fuelwood.Read moreRead less
Genetic architecture of species divergence and hybridisation in eucalypts. Eucalypts are an icon of Australia and are of great economic and ecological significance to the nation. They are the most widely planted hardwood trees in the world, but Australia is the centre of origin of most species and the custodian of this important native bioresource. Understanding the evolutionary processes that shape diversity in this internationally significant genus is important for its long-term management a ....Genetic architecture of species divergence and hybridisation in eucalypts. Eucalypts are an icon of Australia and are of great economic and ecological significance to the nation. They are the most widely planted hardwood trees in the world, but Australia is the centre of origin of most species and the custodian of this important native bioresource. Understanding the evolutionary processes that shape diversity in this internationally significant genus is important for its long-term management and conservation. This project links to large international initiatives currently underway for high-density mapping and sequencing of the eucalypt genome, to enhance the flow of information gained back to Australia for scientific, economic and environmental benefit.Read moreRead less
Understanding plant uptake of organic and inorganic nitrogen for optimal fertiliser application in forestry. Nitrogen (N) in soils occurs in both organic and inorganic forms. Plants can take up inorganic N - nitrate and ammonium - but, on average, these account for only 5% of the soluble N in soils. Recent evidence suggests that plants may be able to tap into some of the 95% of N that occurs in organic forms. We will investigate the importance of organic N uptake for two plantation Eucalyptus sp ....Understanding plant uptake of organic and inorganic nitrogen for optimal fertiliser application in forestry. Nitrogen (N) in soils occurs in both organic and inorganic forms. Plants can take up inorganic N - nitrate and ammonium - but, on average, these account for only 5% of the soluble N in soils. Recent evidence suggests that plants may be able to tap into some of the 95% of N that occurs in organic forms. We will investigate the importance of organic N uptake for two plantation Eucalyptus species by tracing the uptake of different N forms by bacteria, fungi and eucalypts. This information will redefine what is meant by 'available N' and will guide the development of a new test for soil N status.Read moreRead less
Environmental and genetic control over blackwood (Acacia melanoxylon) timber colour, density, and recovery. The project will investigate the roles of environment and genetics in the expression of wood characteristics in blackwood. It will determine the potential heritability of valuable blackwood wood traits and provide a sound understanding of the basis of colour expression. Heartwood characteristics, particularly colour, density, ring width and knottiness determine the commercial value of blac ....Environmental and genetic control over blackwood (Acacia melanoxylon) timber colour, density, and recovery. The project will investigate the roles of environment and genetics in the expression of wood characteristics in blackwood. It will determine the potential heritability of valuable blackwood wood traits and provide a sound understanding of the basis of colour expression. Heartwood characteristics, particularly colour, density, ring width and knottiness determine the commercial value of blackwood. The limited research on these characteristics, all undertaken outside Australia, points to combined genetic and environmental control. By understanding the relative importance that environmental conditions and genetic material have in producing desirable wood traits, growers will be better able to realise the full commercial value of blackwood.Read moreRead less
Assessing the risk of genetic pollution from Eucalyptus globulus and Corymbia plantations. We will provide the biological information necessary to assess the risk of genetic pollution of native eucalypt forest from plantations of Eucalyptus globulus and Corymbia torelliana. Key biological factors that can act as barriers to hybridisation including flowering time, pollen and seed dispersal distances, crossability, hybrid fitness and the potential for backcrossing will be identified and used to de ....Assessing the risk of genetic pollution from Eucalyptus globulus and Corymbia plantations. We will provide the biological information necessary to assess the risk of genetic pollution of native eucalypt forest from plantations of Eucalyptus globulus and Corymbia torelliana. Key biological factors that can act as barriers to hybridisation including flowering time, pollen and seed dispersal distances, crossability, hybrid fitness and the potential for backcrossing will be identified and used to develop strategies to reduce the risk of genetic pollution. The molecular differentiation between populations of the E. globulus complex, including plantations, will be studied to provide a genetic framework for the management of the genepool of this most important hardwood plantation species.Read moreRead less
Genetic impacts on eucalypt forest biodiversity. Australia is the centre of origin for most of the world's eucalypt genetic resources. This project will provide the research required to develop management strategies to reduce the risk of genetic pollution of this important genetic resource from the expanding eucalypt plantings in Australia. It will provide leading-edge science to better assess the risk and impact of genetic pollution not only on the native eucalypt gene pools per se but also on ....Genetic impacts on eucalypt forest biodiversity. Australia is the centre of origin for most of the world's eucalypt genetic resources. This project will provide the research required to develop management strategies to reduce the risk of genetic pollution of this important genetic resource from the expanding eucalypt plantings in Australia. It will provide leading-edge science to better assess the risk and impact of genetic pollution not only on the native eucalypt gene pools per se but also on the structure and biodiversity of the fungi, insect and vertebrate communities that are dependent on the eucalyptsRead moreRead less
Genetic legacy of climate change in Australian temperate forests. This work will make a significant contribution to the understanding of the Quaternary history of the forests of south-eastern Australia. Finding the location of glacial refugia is crucial to the development of long-term conservation strategies, as they are areas of high genetic and species diversity. Understanding the evolutionary processes that affect genetic diversity and gene flow of these keystone species (Nothofagus cunningha ....Genetic legacy of climate change in Australian temperate forests. This work will make a significant contribution to the understanding of the Quaternary history of the forests of south-eastern Australia. Finding the location of glacial refugia is crucial to the development of long-term conservation strategies, as they are areas of high genetic and species diversity. Understanding the evolutionary processes that affect genetic diversity and gene flow of these keystone species (Nothofagus cunninghamii, N. moorei, Acacia melanoxylon, Eucalyptus viminalis) will help their long-term management.Read moreRead less
Managing variable retention harvesting to maintain forest biodiversity—effects of forest influence and successional stage on recolonisation. The project will provide the ecological evidence that will allow forest harvesting practices to be designed to sustain the full range of biodiversity in managed forest systems. It therefore will provide the basis for sustainable forest management, with extensive economic implications. It will specifically test the biodiversity implications of the new and in ....Managing variable retention harvesting to maintain forest biodiversity—effects of forest influence and successional stage on recolonisation. The project will provide the ecological evidence that will allow forest harvesting practices to be designed to sustain the full range of biodiversity in managed forest systems. It therefore will provide the basis for sustainable forest management, with extensive economic implications. It will specifically test the biodiversity implications of the new and increasingly important variable retention methods of forest harvesting, and provide the basis for optimising these methods. In addition, the large database of DNA barcodes for forest beetles developed as a by-product by this project will provide a basis for less expensive and more accurate biodiversity assessments in sustainable management of forest systems in general.Read moreRead less
Ultra-high-throughput genotyping of Eucalyptus trees: Development and application of diversity array technology for genomic studies. A major international eucalypt genomic project is underway. Australia needs to take part because the Australian public would expect Australia to be at the forefront of research on one of its national symbols. Eucalypts are critically important to biodiversity and commercial forestry. The development of the proposed generic eucalypt DArT chip will help keep Australi ....Ultra-high-throughput genotyping of Eucalyptus trees: Development and application of diversity array technology for genomic studies. A major international eucalypt genomic project is underway. Australia needs to take part because the Australian public would expect Australia to be at the forefront of research on one of its national symbols. Eucalypts are critically important to biodiversity and commercial forestry. The development of the proposed generic eucalypt DArT chip will help keep Australia at the forefront of genetic and genomic research in eucalypts and help develop our biotechnology industry. Such research is essential for future forest tree breeding. Furthermore, eucalypt forests are one of our most important natural assets and their continual preservation requires that we develop better knowledge of their natural genetic variation and development.Read moreRead less
The genomics of climate adaptation in eucalypts. This project aims to investigate validated, rapid and pragmatic solutions to managing plant and animal maladaptation caused by global environmental change. Using Australia’s iconic blue gum (Eucalyptus globulus), this project will test strategies for identifying the major climatic predictors of, and key genomic regions that underlie, adaptation to climate change. By integrating climate variables and genome sequences with field trial-derived trait ....The genomics of climate adaptation in eucalypts. This project aims to investigate validated, rapid and pragmatic solutions to managing plant and animal maladaptation caused by global environmental change. Using Australia’s iconic blue gum (Eucalyptus globulus), this project will test strategies for identifying the major climatic predictors of, and key genomic regions that underlie, adaptation to climate change. By integrating climate variables and genome sequences with field trial-derived trait and performance data from decades of research and thousands of trees, we will develop validated DNA-based tools for monitoring the rate of adaptation in our native forests and identifying climate-ready seed sources for environmental and industrial plantings.Read moreRead less