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Sustaining intensive agriculture through droughts and floods. This project aims to develop state-of-the-art conceptual and numerical models of river-soil-groundwater interactions to address complex and persistent questions on water sustainability in the Lower Burdekin Delta, Queensland, where groundwater pumping to irrigate sugarcane has been supplemented by artificial recharge for over 50 years. This project expects to deliver new knowledge of critical aquifer processes to inform the scheme ope ....Sustaining intensive agriculture through droughts and floods. This project aims to develop state-of-the-art conceptual and numerical models of river-soil-groundwater interactions to address complex and persistent questions on water sustainability in the Lower Burdekin Delta, Queensland, where groundwater pumping to irrigate sugarcane has been supplemented by artificial recharge for over 50 years. This project expects to deliver new knowledge of critical aquifer processes to inform the scheme operation, the largest in the country. Expected outcomes include ground-breaking management plans for the aquifer-replenishment scheme. Anticipated benefits involve balancing the needs of agriculture and the protection of pristine environments, including groundwater discharge to the Great Barrier Reef.
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Rehabilitating a changing landscape: using the latest advances in koala ecology to direct adaptive management. The koala has been identified as one of the world's flagship species suffering from environmental change. In contrast to the decline of koalas in New South Wales generally, the eucalypts planted in Gunnedah to combat salinity led to an increase in koalas. However, the startlingly high death rate of Gunnedah koalas (25 per cent of the population) in the heatwave during the drought in 200 ....Rehabilitating a changing landscape: using the latest advances in koala ecology to direct adaptive management. The koala has been identified as one of the world's flagship species suffering from environmental change. In contrast to the decline of koalas in New South Wales generally, the eucalypts planted in Gunnedah to combat salinity led to an increase in koalas. However, the startlingly high death rate of Gunnedah koalas (25 per cent of the population) in the heatwave during the drought in 2009 must be understood. There are also new threats brought about by intensive land modification. This project aims to determine the effects of environmental change on the koala population through a study of landscape ecology, leaf chemistry, disease epidemiology and koala movements. This aims to lead to better management decisions for arboreal fauna.Read moreRead less
Getting to the root of the matter: predicting plant benefits from arbuscular mycorrhizal symbioses. Massive efforts are underway to select beneficial root traits that enhance resource acquisition and productivity. These efforts are usually conducted while excluding mutually beneficial mycorrhizal partnerships, which include two-thirds of higher plants. These efforts are likely to lead to artifactual outcomes unless the modifying effects of these partnerships are considered. While mycorrhization ....Getting to the root of the matter: predicting plant benefits from arbuscular mycorrhizal symbioses. Massive efforts are underway to select beneficial root traits that enhance resource acquisition and productivity. These efforts are usually conducted while excluding mutually beneficial mycorrhizal partnerships, which include two-thirds of higher plants. These efforts are likely to lead to artifactual outcomes unless the modifying effects of these partnerships are considered. While mycorrhization can substantially enhance plant vigour, results are often difficult to replicate due to widespread 'context-dependence'. This research will identify plant and fungal traits that predict how mycorrhizal plants benefit under a variety of contexts, which will improve varietal selection and productivity gains in marginal environments.Read moreRead less
Bridging the gap between crop pollination services and pollinator health. Insect pollinators play an integral role in the quantity and quality of production for many food crops, yet there is growing concern that in agricultural landscapes, the limited availability of floral and non-floral resources might be contributing to global pollinator health declines. This project will synthesize global datasets, develop new methodological tools and conduct new, targeted empirical work to develop an integ ....Bridging the gap between crop pollination services and pollinator health. Insect pollinators play an integral role in the quantity and quality of production for many food crops, yet there is growing concern that in agricultural landscapes, the limited availability of floral and non-floral resources might be contributing to global pollinator health declines. This project will synthesize global datasets, develop new methodological tools and conduct new, targeted empirical work to develop an integrated approach to pollinator resource management with the explicit objectives of maintaining both wild pollinator health and to support crop pollination service delivery in modified systems.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE160101313
Funder
Australian Research Council
Funding Amount
$383,536.00
Summary
New chromatography-electrophysiology methods for semiochemical discovery. The aim of this research is to develop new tools for discovering natural products that mediate insect-insect and plant-insect communication. Knowledge of such semiochemicals is critical for many applications in conservation biology, agriculture, and horticulture. Many of these compounds are difficult to identify with current chemical and electrophysiological methods. The goal is to develop new technology combining state-of ....New chromatography-electrophysiology methods for semiochemical discovery. The aim of this research is to develop new tools for discovering natural products that mediate insect-insect and plant-insect communication. Knowledge of such semiochemicals is critical for many applications in conservation biology, agriculture, and horticulture. Many of these compounds are difficult to identify with current chemical and electrophysiological methods. The goal is to develop new technology combining state-of-the-art chemical separation techniques and electroantennography to enable detection and identification of a broad range of chemicals of biological importance. The intended outcome is to apply this technology to pollination systems of plants of conservation and evolutionary significance, and of commercial importance in terms of insect control and pollination.Read moreRead less
Predicting the delivery of ecosystem services in agricultural landscapes. The ecological sustainability of Australian agriculture relies on services (for example, pollination) provided by ecosystems. Service provision is threatened by environmental change, but there is no established approach for predicting the impact of change on services. This project will undertake the most comprehensive experimental examination of ecosystem-service delivery ever conducted in Australia, testing the predictive ....Predicting the delivery of ecosystem services in agricultural landscapes. The ecological sustainability of Australian agriculture relies on services (for example, pollination) provided by ecosystems. Service provision is threatened by environmental change, but there is no established approach for predicting the impact of change on services. This project will undertake the most comprehensive experimental examination of ecosystem-service delivery ever conducted in Australia, testing the predictive capacity of an approach that links environmental change with variation in service provision through species’ traits. The major outcomes include greater capacity for agriculturalists to maximise ecosystem benefits and increase economic returns, and improved biodiversity conservation through recognition of its contribution to agriculture. Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE220100479
Funder
Australian Research Council
Funding Amount
$453,582.00
Summary
Delivering defences: using fungi to enhance plant resistance to herbivory. This project will identify how the diversity of beneficial fungi in the soil is affected by agricultural management, and will reveal how these fungi govern the ability of plants to defend themselves from insect herbivores. Through innovative field surveys and experimentation, this project will generate new knowledge in the key areas of soil ecology and plant defence. This will allow us to exploit these soil fungi to enhan ....Delivering defences: using fungi to enhance plant resistance to herbivory. This project will identify how the diversity of beneficial fungi in the soil is affected by agricultural management, and will reveal how these fungi govern the ability of plants to defend themselves from insect herbivores. Through innovative field surveys and experimentation, this project will generate new knowledge in the key areas of soil ecology and plant defence. This will allow us to exploit these soil fungi to enhance crop protection while simultaneously conserving soil ecosystems. Effectively boosting plant defence in this way will reduce reliance on ecologically damaging pesticides, promote soil biodiversity, and ensure the sustainability of crop production into the future. Read moreRead less
Environmental mismatch in invertebrate translocations for conservation. This project aims to use matchstick grasshoppers as a model system to develop strategies and protocols for maximising the adaptive potential of species when movement of individuals or genes is required. Biodiversity management increasingly requires translocation or targeted gene flow to maintain genetic diversity, raising the issue of disrupting local environmental adaptations. Matchstick grasshoppers are extremely well unde ....Environmental mismatch in invertebrate translocations for conservation. This project aims to use matchstick grasshoppers as a model system to develop strategies and protocols for maximising the adaptive potential of species when movement of individuals or genes is required. Biodiversity management increasingly requires translocation or targeted gene flow to maintain genetic diversity, raising the issue of disrupting local environmental adaptations. Matchstick grasshoppers are extremely well understood genetically, are highly amenable to experimental investigation, and include populations and species threatened by habitat destruction. This project will generate novel conservation tools for the focal species as well as empirical precedents for resolving the problem of environmental mismatch in translocation.Read moreRead less
Global extent of degraded farm lands and their conservation potential. This project aims to map uncontested lands worldwide and assess their potential contribution to global conservation. Globally the area of agricultural land is shrinking due to environmental degradation, market changes and social trends. In the last 15 years, the area of Australia’s pasture lands steeply declined. Although expensive, restoring degraded lands no longer used for agriculture should offer economic opportunities, h ....Global extent of degraded farm lands and their conservation potential. This project aims to map uncontested lands worldwide and assess their potential contribution to global conservation. Globally the area of agricultural land is shrinking due to environmental degradation, market changes and social trends. In the last 15 years, the area of Australia’s pasture lands steeply declined. Although expensive, restoring degraded lands no longer used for agriculture should offer economic opportunities, help mitigate climate change and involve minimal social or political opposition. The outcome will identify the extent and location of uncontested lands and provide a framework for deciding how best to invest in their regeneration.Read moreRead less
Alleviating herbicide damage to crops by using fulvate and manganese. Glyphosate is a widely used herbicide, but its drift can cause growth depression in sensitive plants such as wheat by reducing uptake of metallic micronutrients, particularly manganese. In pot and field trials, this project aims to assess the alleviating potential of fulvate and manganese on growth and micronutrient uptake by wheat exposed to glyphosate drift. The influence of land management on the effect of these treatments ....Alleviating herbicide damage to crops by using fulvate and manganese. Glyphosate is a widely used herbicide, but its drift can cause growth depression in sensitive plants such as wheat by reducing uptake of metallic micronutrients, particularly manganese. In pot and field trials, this project aims to assess the alleviating potential of fulvate and manganese on growth and micronutrient uptake by wheat exposed to glyphosate drift. The influence of land management on the effect of these treatments will also be assessed. The underlying mechanisms will be characterised, eg. by determining metal speciation in soil and assessing soil microbial community composition. The outcome of this project will contribute to sustainable agriculture by giving land managers options to reduce glyphosate damage in sensitive crops.Read moreRead less