ARC Australia-New Zealand Research Network for Vegetation Function. Plant species vary widely in quantitative functional traits, and in their relations to climate, soils and geography. Global generalizations are emerging. Vegetation Function network will reach from plant function into genomics and crop breeding, into palaeoecology and vegetation history, into landscape management for carbon, water and salinity outcomes, into forecasting future ecosystems under global change, and into phylogeny, ....ARC Australia-New Zealand Research Network for Vegetation Function. Plant species vary widely in quantitative functional traits, and in their relations to climate, soils and geography. Global generalizations are emerging. Vegetation Function network will reach from plant function into genomics and crop breeding, into palaeoecology and vegetation history, into landscape management for carbon, water and salinity outcomes, into forecasting future ecosystems under global change, and into phylogeny, ecoinformatics and evolutionary theory. Across this span, working groups will target nine identified opportunities for breakthrough research. Each research target needs input from two or more disciplines. Together, the nine targets link across disciplines, as a network that spans from genomic to planetary scales.Read moreRead less
Understanding responses of tightly coupled ecological interactions of biota vulnerable to climate change: endangered Australian cycads and their pollinators. Australian cycads are iconic plants. Most of the forty Macrozamia species have small, fragmented distributions and fifteen are endangered or vulnerable. They are at risk from harvesting by collectors and pollination failure, because a highly specialised relationship with insect pollinators is crucial to their persistence in nature. Cycads r ....Understanding responses of tightly coupled ecological interactions of biota vulnerable to climate change: endangered Australian cycads and their pollinators. Australian cycads are iconic plants. Most of the forty Macrozamia species have small, fragmented distributions and fifteen are endangered or vulnerable. They are at risk from harvesting by collectors and pollination failure, because a highly specialised relationship with insect pollinators is crucial to their persistence in nature. Cycads release chemo-attractants by increasing cone temperatures when ambient temperature reaches a threshold, so climate change will affect these systems. An understanding of this temperature-dependent relationship will help predict future fates of cycads and other tightly coupled ecological interactions. Our integrated approach will generate knowledge to help manage vulnerable Australian biodiversity.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE140100505
Funder
Australian Research Council
Funding Amount
$394,620.00
Summary
Is plant organisation the fountain of eternal youth? The decline in performance at advanced ages, senescence, affects life quality, lifespan and productivity. It is believed that this phenomenon is universal, including all species from microbes to humans. Yet, some plants do not exhibit senescence. This project will identify the mechanisms that enable plants to escape senescence. Using a unique global demographic database, the project will determine whether, how and when senescence has evolved a ....Is plant organisation the fountain of eternal youth? The decline in performance at advanced ages, senescence, affects life quality, lifespan and productivity. It is believed that this phenomenon is universal, including all species from microbes to humans. Yet, some plants do not exhibit senescence. This project will identify the mechanisms that enable plants to escape senescence. Using a unique global demographic database, the project will determine whether, how and when senescence has evolved across 850 plant species. It will also experimentally test how drought, nutrients and resprouting affect senescence in two mallee Eucalyptus species in the Simpson Desert. This research will provide new insights into the evolution of senescence and will elucidate how some plants escape a supposedly unavoidable fate.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
A paradigm shift for predictions of freshwater harmful cyanobacteria blooms. This project aims to advance model predictions to generate novel insights into the triggers of freshwater harmful cyanobacteria blooms. Current models are poorly adapted for this purpose because they fail to account for antecedent environmental forcing. The project is expected to create new knowledge of cyanobacteria dynamics from simulating the adaptive responses of individual cyanobacteria cells, colonies or filaments ....A paradigm shift for predictions of freshwater harmful cyanobacteria blooms. This project aims to advance model predictions to generate novel insights into the triggers of freshwater harmful cyanobacteria blooms. Current models are poorly adapted for this purpose because they fail to account for antecedent environmental forcing. The project is expected to create new knowledge of cyanobacteria dynamics from simulating the adaptive responses of individual cyanobacteria cells, colonies or filaments to temperature, light and nutrient history. Three field studies will be used to validate a new individual based model. The outcomes of this project will be valuable for managing freshwater ecosystems that are increasingly subject to blooms in a warming climate, and for testing suitable mitigation and control strategies.Read moreRead less
Exotic and native plant coexistence in novel communities. The development of novel communities has become an inevitable outcome of global change. Despite this, we have a poor understanding of the mechanisms driving their assembly. Here, experimental and modelling approaches will be used to identify how competition among native and exotic plant species change across key environmental gradients, leading to: resilient native communities; stable novel communities - mixes of native and exotic species ....Exotic and native plant coexistence in novel communities. The development of novel communities has become an inevitable outcome of global change. Despite this, we have a poor understanding of the mechanisms driving their assembly. Here, experimental and modelling approaches will be used to identify how competition among native and exotic plant species change across key environmental gradients, leading to: resilient native communities; stable novel communities - mixes of native and exotic species; or, degraded communities dominated by exotic species. The annual plant communities of Western Australia's (WA) York Gum woodlands will be used as a model system. Outcomes will improve management of WA wildflower communities and provide a framework for predicting novel community formation worldwide.Read moreRead less
Early life-history sex determination in reef fishes. In many fishes, gender is influenced by environmental conditions experienced after hatching. However, the timing, cues, and developmental pathways of sex determination are poorly understood. This research will establish how environmental conditions during the juvenile phase control patterns of sex determination in reef fishes and determine if sex differentiation is a response to local- or broad-scale environmental cues. An individual's gender ....Early life-history sex determination in reef fishes. In many fishes, gender is influenced by environmental conditions experienced after hatching. However, the timing, cues, and developmental pathways of sex determination are poorly understood. This research will establish how environmental conditions during the juvenile phase control patterns of sex determination in reef fishes and determine if sex differentiation is a response to local- or broad-scale environmental cues. An individual's gender has profound and significant consequences for all aspects of its biology and the mechanism of sex determination has important implications for population ecology. This project will test theory in evolutionary ecology and greatly benefit the management of reef fisheries.Read moreRead less
Assessing linkages across arid zone estuarine landscapes. We aim to understand the degree of connectivity between the terrestrial environment and estuaries in the arid tropics of Australia. We will investigate the impact of terrestrial-estuarine linkages on near shore food webs, which include a diverse fauna, some of which are commercially important. Human activities in the land-ocean interface have to have the capacity to alter greatly the timing, magnitude, and composition of inputs from water ....Assessing linkages across arid zone estuarine landscapes. We aim to understand the degree of connectivity between the terrestrial environment and estuaries in the arid tropics of Australia. We will investigate the impact of terrestrial-estuarine linkages on near shore food webs, which include a diverse fauna, some of which are commercially important. Human activities in the land-ocean interface have to have the capacity to alter greatly the timing, magnitude, and composition of inputs from watersheds to estuaries, thereby greatly altering the function of estuaries. The results of this project will fill a gap in our knowledge of how arid zone estuaries function, and will contribute to developing management strategies needed to maintain estuary productivity.Read moreRead less
Next-generation models to predict cyanobacteria harmful algal blooms. This project aims to address the need for improved predictions of cyanobacteria (blue-green algae) harmful algal blooms. Accurate predictions of blooms with computer models are important to support management strategies to prevent their occurrence. This project is expected to generate new knowledge of strain-level variation in cyanobacteria that leads to toxic blooms. This project will lead to new knowledge of the significance ....Next-generation models to predict cyanobacteria harmful algal blooms. This project aims to address the need for improved predictions of cyanobacteria (blue-green algae) harmful algal blooms. Accurate predictions of blooms with computer models are important to support management strategies to prevent their occurrence. This project is expected to generate new knowledge of strain-level variation in cyanobacteria that leads to toxic blooms. This project will lead to new knowledge of the significance of strain-level variation in cyanobacteria harmful algal blooms, how strains influence toxin production and models for prediction of bloom and toxins. The project will generate significant benefits for water security for the purposes human consumption and recreation, and ecosystem health.Read moreRead less
Trophic associations involving fish and crustaceans in coastal saltmarsh. Coastal saltmarsh is an endangered ecological community utilised by a diverse assemblage of fish during spring tides. Little attempt has been made to determine why fish visit saltmarsh, or what contribution saltmarsh makes to the diet of fish. This study combines gut analysis with novel approaches involving stable isotopes and radioactive markers to determine trophic interactions between fish and permanent members of the s ....Trophic associations involving fish and crustaceans in coastal saltmarsh. Coastal saltmarsh is an endangered ecological community utilised by a diverse assemblage of fish during spring tides. Little attempt has been made to determine why fish visit saltmarsh, or what contribution saltmarsh makes to the diet of fish. This study combines gut analysis with novel approaches involving stable isotopes and radioactive markers to determine trophic interactions between fish and permanent members of the saltmarsh fauna and flora. The project will provide coastal resource managers with quantifiable indicators of the relative significance of different saltmarsh communities to estuarine fisheries.Read moreRead less