How do ecologically significant complex traits evolve in natural populations? Evolution and selection on plant chemistry in Eucalyptus. The scent of Eucalyptus oil is one of the signatures of Australia but we actually import large amounts of these oils. As well as being valuable industrially, Eucalyptus oils also influence many aspects of our environment ranging from icons such as the koala to the occurrence of smog in cities. Understanding how plants make these oils helps us to understand eco ....How do ecologically significant complex traits evolve in natural populations? Evolution and selection on plant chemistry in Eucalyptus. The scent of Eucalyptus oil is one of the signatures of Australia but we actually import large amounts of these oils. As well as being valuable industrially, Eucalyptus oils also influence many aspects of our environment ranging from icons such as the koala to the occurrence of smog in cities. Understanding how plants make these oils helps us to understand ecological processes and also to improve the financial incentives for land restoration through the planting of valuable oil-bearing trees. We aim to use recent new techniques in genetics to explain why the quantity and types of Eucalyptus oils vary so widely and to apply this information to improving land management and conservation.Read moreRead less
Linking individual traits, the gut microbiome and parasite load in wildlife. This project aims to apply principles of community ecology to the gut microbiome of an urban exploiter – the common brushtail possum - to reveal how animal traits influence individual variation in the load of gut parasites that cause disease in both humans and wildlife. By combining assays defining the behavioural and physiological states of individuals with sophisticated analyses of their gut microbiome, our project wi ....Linking individual traits, the gut microbiome and parasite load in wildlife. This project aims to apply principles of community ecology to the gut microbiome of an urban exploiter – the common brushtail possum - to reveal how animal traits influence individual variation in the load of gut parasites that cause disease in both humans and wildlife. By combining assays defining the behavioural and physiological states of individuals with sophisticated analyses of their gut microbiome, our project will provide a new, yet crucial, perspective on how and why diseases spread. Our discoveries will help understand and manage the burden of infectious diseases from parasites in and beyond our cities and across the human-wildlife interface; essential for improving human and wildlife health in an increasingly urbanised Australia.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0989072
Funder
Australian Research Council
Funding Amount
$100,000.00
Summary
High throughput nitrogen analysis for ecological studies. Australian environments are unproductive partly because they contain little Nitrogen (N) and changes in atmospheric CO2 will exacerbate this. Furthermore, animals cannot extract all the N from the plants they eat. An assay has been developed that measures how much they can extract (available N) and it is intended to use it to measure habitat quality and the effects of climate change over large tracts of land. This requires thousands of ....High throughput nitrogen analysis for ecological studies. Australian environments are unproductive partly because they contain little Nitrogen (N) and changes in atmospheric CO2 will exacerbate this. Furthermore, animals cannot extract all the N from the plants they eat. An assay has been developed that measures how much they can extract (available N) and it is intended to use it to measure habitat quality and the effects of climate change over large tracts of land. This requires thousands of N analyses. The equipment we are requesting - a LECO combustion analyser, allows us to analyse samples quickly and safely and uses fewer chemicals and much less water than do traditional machines.Read moreRead less
Re-evaluating the role of tannins in Australian forest ecosystems. As atmospheric CO2 concentrations rise, eucalypts will respond by decreasing the amount of protein in the leaves and increasing the concentrations of toxins called tannins. Together this will have the effect of making the leaves harder for herbivores to eat and slower to break down on the forest floor. We have developed a new way of measuring these effects and will use it to show which eucalypt communities climate change will mo ....Re-evaluating the role of tannins in Australian forest ecosystems. As atmospheric CO2 concentrations rise, eucalypts will respond by decreasing the amount of protein in the leaves and increasing the concentrations of toxins called tannins. Together this will have the effect of making the leaves harder for herbivores to eat and slower to break down on the forest floor. We have developed a new way of measuring these effects and will use it to show which eucalypt communities climate change will most affect and so which forests will become less able to support fauna. Apart from contributing to the better management of Australian forests, this project also enhances the National Carbon Accounting System by measuring how tannins influence litter decomposition and explaining the link with leaf chemistry.Read moreRead less
Nutritional ecology of free ranging herbivores. Australian grasslands underpin most of our livestock industries and provide important habitats for many native plants and animals. In order to manage these areas sustainably, farmers and other land managers need to know how much food animals consume and how the nutritional quality of that food varies. However there is no simple way of doing this and this prevents timely manipulation of stock numbers and limits our ability to predict fluctuations i ....Nutritional ecology of free ranging herbivores. Australian grasslands underpin most of our livestock industries and provide important habitats for many native plants and animals. In order to manage these areas sustainably, farmers and other land managers need to know how much food animals consume and how the nutritional quality of that food varies. However there is no simple way of doing this and this prevents timely manipulation of stock numbers and limits our ability to predict fluctuations in numbers of native herbivores such as kangaroos. The project will provide a cheap and quick means for ecologists and land managers to incorporate nutritional analyses into their work
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Transformation of vegetation by big herbivores, from the Pleistocene to now. The project aims to provide a coherent understanding of the effects of extinct and extant large herbivores on ecosystems over space and time. The structure and distribution of vegetation types is determined not only by climate and soils, but also by the impacts of herbivores and fire as consumers of plant biomass. Recent research has shown how fire shapes the large-scale distribution of vegetation types, but we do not h ....Transformation of vegetation by big herbivores, from the Pleistocene to now. The project aims to provide a coherent understanding of the effects of extinct and extant large herbivores on ecosystems over space and time. The structure and distribution of vegetation types is determined not only by climate and soils, but also by the impacts of herbivores and fire as consumers of plant biomass. Recent research has shown how fire shapes the large-scale distribution of vegetation types, but we do not have an equivalent understanding of the effects of large ground-dwelling herbivores. The project plans to test the effects of such animals on vegetation structure in the Pleistocene, when mega-herbivores were common, and today, and thus to compare the impacts of fire and herbivores on the distribution of vegetation types.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE200100121
Funder
Australian Research Council
Funding Amount
$423,534.00
Summary
Why do some declining species persist while others go extinct? Global change is driving thousands of species towards extinction. Legislation requires the protection of biodiversity, but current scientific understanding of species declines limits effective action. By taking a new approach to studying species declines, this integrative research aims to identify why some species persist, while others decline. This project is expected to improve understanding of species vulnerability to extinction, ....Why do some declining species persist while others go extinct? Global change is driving thousands of species towards extinction. Legislation requires the protection of biodiversity, but current scientific understanding of species declines limits effective action. By taking a new approach to studying species declines, this integrative research aims to identify why some species persist, while others decline. This project is expected to improve understanding of species vulnerability to extinction, and the conditions which allow species to coexist with threats. Anticipated benefits include advancing ecological theory, improving conservation planning, and increasing the efficiency and effectiveness of policy and management to prevent species extinctions.Read moreRead less
Using pollinators to optimise plant conservation translocation. This project aims to address the low success rate of conservation translocations of threatened orchids. While pollinators are critical for plant reproduction, they are very rarely considered when establishing new populations of endangered species. Our innovative approach to conservation translocation involves using pollinators in site selection, developing strategies to mitigate risks of hybridisation, and optimising plant reproduct ....Using pollinators to optimise plant conservation translocation. This project aims to address the low success rate of conservation translocations of threatened orchids. While pollinators are critical for plant reproduction, they are very rarely considered when establishing new populations of endangered species. Our innovative approach to conservation translocation involves using pollinators in site selection, developing strategies to mitigate risks of hybridisation, and optimising plant reproduction through planting design. The key outcome will be best-practice protocols to fast-track the establishment of self-sustaining populations. Due to their novelty, the approaches we develop will benefit plant translocations worldwide, and lead to enhanced conservation outcomes at reduced financial cost. Read moreRead less
Australian alpine seed ecology: Plant conservation and adaptation to climate change. The Australian alpine region is critically vulnerable to climate change. Many alpine plant species are already threatened. Our project facilitates effective management of Australian alpine flora, enabling us to preserve alpine biodiversity and improve ecosystem resilience to climate change. Seed banking provides conservation of nationally vulnerable and threatened flora, providing insurance against extinction. O ....Australian alpine seed ecology: Plant conservation and adaptation to climate change. The Australian alpine region is critically vulnerable to climate change. Many alpine plant species are already threatened. Our project facilitates effective management of Australian alpine flora, enabling us to preserve alpine biodiversity and improve ecosystem resilience to climate change. Seed banking provides conservation of nationally vulnerable and threatened flora, providing insurance against extinction. Our exemplary contribution to global seed conservation provides a national resource of alpine seeds for revegetation and research and interpretive resources at the Australian National Botanic Gardens facilitate public awareness of the ecological significance and fragility of Australian alpine ecology in response to climate change.Read moreRead less
Mammal declines in northern Australia: science for conservation and recovery. Australia’s unique mammal fauna is a rich biological heritage for the nation. It provides a wealth of ecosystem services, and many mammal species have special cultural or aesthetic value. However, our mammals are sadly depleted, and we already have the worst record of recent mammal extinction of any nation. Preventing further mammal extinctions, and managing environments to allow declined mammals to recover, will be of ....Mammal declines in northern Australia: science for conservation and recovery. Australia’s unique mammal fauna is a rich biological heritage for the nation. It provides a wealth of ecosystem services, and many mammal species have special cultural or aesthetic value. However, our mammals are sadly depleted, and we already have the worst record of recent mammal extinction of any nation. Preventing further mammal extinctions, and managing environments to allow declined mammals to recover, will be of great benefit to Australian biodiversity and to the ecosystem processes and human values that depend on it.Read moreRead less