Do hotter and drier regions harbour adaptive variation for climate change? This project aims to improve our understanding of the capacity of trees to respond to climate change. This is essential for the maintenance of biodiversity, forest health and productivity. In south-west Australia, climate variation has increased the frequency and intensity of droughts, which has resulted in tree death and negatively affected essential ecosystem services. Adaptive land management is urgently needed to miti ....Do hotter and drier regions harbour adaptive variation for climate change? This project aims to improve our understanding of the capacity of trees to respond to climate change. This is essential for the maintenance of biodiversity, forest health and productivity. In south-west Australia, climate variation has increased the frequency and intensity of droughts, which has resulted in tree death and negatively affected essential ecosystem services. Adaptive land management is urgently needed to mitigate the risk of large-scale drought mortality in a rapidly changing climate. This project seeks to deliver a scientific basis for the adoption of assisted gene migration in south-west forests, through a detailed understanding of genetic adaptation and physiological tolerance, to improve drought-resilience under future hotter and drier climates.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE180100743
Funder
Australian Research Council
Funding Amount
$365,058.00
Summary
Tolerance of coralline algae to climate change in variable environments. This project aims to test whether organisms which regularly encounter low pH have greater tolerance to ocean acidification and why, and whether certain coralline algae can exert controls on their calcification that allows for greater tolerance to low pH. Coralline algae create and bind together reefs. Without them, both temperate and coral reefs as we know them would not exist. Understanding the extent to which tolerance to ....Tolerance of coralline algae to climate change in variable environments. This project aims to test whether organisms which regularly encounter low pH have greater tolerance to ocean acidification and why, and whether certain coralline algae can exert controls on their calcification that allows for greater tolerance to low pH. Coralline algae create and bind together reefs. Without them, both temperate and coral reefs as we know them would not exist. Understanding the extent to which tolerance to ocean acidification could be imparted to coralline algae through their environment or by physiological controls on calcification will enable us to better understand the fate of future reefs.Read moreRead less
Maintenance of high plant diversity in phosphorus-impoverished ecosystems. This project aims to determine the role of soil-inhabiting pathogens and symbiotic fungi in the maintenance of plant diversity in Australia’s hyperdiverse shrublands. These are among the world’s most species-rich systems, yet occur on extremely poor soils. This project tests the hypothesis that plants that are best adapted to acquire phosphorus in these extremely infertile soils are most susceptible to soil pathogens. Thi ....Maintenance of high plant diversity in phosphorus-impoverished ecosystems. This project aims to determine the role of soil-inhabiting pathogens and symbiotic fungi in the maintenance of plant diversity in Australia’s hyperdiverse shrublands. These are among the world’s most species-rich systems, yet occur on extremely poor soils. This project tests the hypothesis that plants that are best adapted to acquire phosphorus in these extremely infertile soils are most susceptible to soil pathogens. This trade-off would equalise differences in competitive abilities among plant species and promote high plant diversity. The project will help elucidate how pathogens and symbiotic fungi together drive plant diversity in a globally significant biodiversity hotspot in Australia, with relevance to other biodiverse regions.Read moreRead less
The role of mycorrhizal fungi in the nutrition of temperate terrestrial orchids. This project addresses the role of external mycelial systems in the carbon and mineral nutrition of temperate terrestrial orchids. The project will determine the processes of nutrient transfer in the protocorm and adult phases of development across a range of terrestrial temperate orchids to inform conservation and restoration efforts.
Physiological effects of extreme hot weather on animals’ metabolism, development, body size and cell lifespan. This project aims to determine the physiological effects of extreme hot weather on animals’ metabolism, development, body size and cell lifespan. Body size in animals is negatively related to latitude; individuals are relatively small in hot climates. The project will test the idea that the adverse effects of heat during development constrain body size. The project will draw on physiolo ....Physiological effects of extreme hot weather on animals’ metabolism, development, body size and cell lifespan. This project aims to determine the physiological effects of extreme hot weather on animals’ metabolism, development, body size and cell lifespan. Body size in animals is negatively related to latitude; individuals are relatively small in hot climates. The project will test the idea that the adverse effects of heat during development constrain body size. The project will draw on physiology, endocrinology, behaviour and cell biology and study birds across Australian climates and in a temperature-controlled laboratory. The outcomes of the project will provide insight into regional variation in species vulnerabilities to climate variation and inform biodiversity management.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE100100041
Funder
Australian Research Council
Funding Amount
$100,000.00
Summary
A high-resolution isotope facility for low cost analysis of water, plant, and soil/sediment samples to understand environmental change. The most significant environmental challenges facing Australia include ensuring sustainable management of our water resources and conservation of both terrestrial and marine biodiversity, particularly in the face of our changing climate and land-use. The new instruments will accelerate progress across a number of projects aimed at understanding the developme ....A high-resolution isotope facility for low cost analysis of water, plant, and soil/sediment samples to understand environmental change. The most significant environmental challenges facing Australia include ensuring sustainable management of our water resources and conservation of both terrestrial and marine biodiversity, particularly in the face of our changing climate and land-use. The new instruments will accelerate progress across a number of projects aimed at understanding the development of groundwater resources, the relative dependency of ecosystems on groundwater versus soil and surface water, and an assessment of the likely impacts of altered hydrology, especially dewatering and salinisation, on ecosystems. In addition, they will also be used to extend our knowledge of climate variability in the recent past and increase understanding of critical marine resources.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE120100352
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
Understanding the origin and maintenance of megadiverse plant communities. South-western Australia hosts some of the most biologically diverse plant communities on Earth, and these occur on the most ancient, nutrient-impoverished soils. By studying coastal dunes of increasing age, this project will determine how megadiverse plant communities originate during long-term ecosystem development, and how they are maintained.
The energetic basis to seed longevity and storage. The energetic basis to seed longevity and storage. This project aims to quantify patterns of metabolic rate in Australian native seeds to research seed ecology, dormancy, germination, longevity and persistence in natural and artificial seed banks. The project aims to optimise and refine current respirometry technology for use with native seeds, understand the allometric relationship and patterns with seed diversity, and apply this knowledge to b ....The energetic basis to seed longevity and storage. The energetic basis to seed longevity and storage. This project aims to quantify patterns of metabolic rate in Australian native seeds to research seed ecology, dormancy, germination, longevity and persistence in natural and artificial seed banks. The project aims to optimise and refine current respirometry technology for use with native seeds, understand the allometric relationship and patterns with seed diversity, and apply this knowledge to benefit restoration and conservation seed banks. By interpreting the energetics of seeds in a phylogenetic context, this project will develop an experimental protocol to predict the physiology and longevity, and test the viability of seeds in storage. Anticipated outcomes are improved efficiency of seed bank storage, conservation and restoration efforts.Read moreRead less
The role of plant-soil feedback in biodiversity maintenance along fertility gradients: from patterns to mechanisms. Plants strongly modify soils and their associated biota, which in turn has important consequences for plant growth. This is known as 'plant-soil feedback'. This project will determine whether such feedback plays a role in maintaining the exceptionally high levels of plant biodiversity found in the kwongan shrublands of south-western Australia.
Does calcium toxicity explain the absence of most Proteaceae from calcareous habitats? Native Proteaceae plants inhabit sandy environments across Australia, but are invariably limited in their distribution by soil conditions. This project will determine elemental and genetic factors that determine Proteaceae distribution and survival, in order to improve ecosystem conservation and restoration strategies and preserve biodiversity.