Improving the success of hybrid living shorelines for coastal protection. This project aims to improve the success of hybrid living shorelines that combine the restoration of mangroves and oysters with engineered structures to enhance restoration outcomes and coastal hazard resilience. It expects to generate new knowledge on the effectiveness of innovative coastal-manager-led solutions that have not yet been robustly evaluated. Expected outcomes of this project include delivery of the technical ....Improving the success of hybrid living shorelines for coastal protection. This project aims to improve the success of hybrid living shorelines that combine the restoration of mangroves and oysters with engineered structures to enhance restoration outcomes and coastal hazard resilience. It expects to generate new knowledge on the effectiveness of innovative coastal-manager-led solutions that have not yet been robustly evaluated. Expected outcomes of this project include delivery of the technical guidelines needed to practically design and implement nature-based coastal protection at scale. This should provide significant socio-economic and environmental benefits through improving Australia’s capacity to adapt to increased erosion and flood risk caused by climate change and coastal urbanisation.Read moreRead less
Cascading effects of Australia's ecological extinctions on biodiversity and ecosystem function. The current rate of species extinctions is so extensive that it has been described as the “sixth mass extinction”. In Australian ecosystems, extinctions and declines of mammals have been dramatic, with formerly abundant species now “ecologically extinct”, meaning they are too rare to continue to play important ecological roles. The loss of entire functional guilds may have cascading effects on biodive ....Cascading effects of Australia's ecological extinctions on biodiversity and ecosystem function. The current rate of species extinctions is so extensive that it has been described as the “sixth mass extinction”. In Australian ecosystems, extinctions and declines of mammals have been dramatic, with formerly abundant species now “ecologically extinct”, meaning they are too rare to continue to play important ecological roles. The loss of entire functional guilds may have cascading effects on biodiversity and ecosystem function. This project uses a multi-scalar experimental approach to investigate the broader impacts of mammal declines on Australian ecosystems, accounting for interactions with climate. The outcomes will include new insights into the pre-European state of Australian ecosystems and more realistic targets for ecosystem restoration.Read moreRead less
Ecology, impact and control of cane toads on the southern invasion front. The invasion of cane toads has killed many native animals in tropical Australia, but the toads’ southern (NSW) invasion front remains unstudied. This project will build on recent research to understand how toads affect southern biodiversity, and will develop new ways to reduce that impact.
Testing new theoretical models of sperm allocation: does competition for mates compromise male fertility? In order to reproduce, males must invest resources into competing for females at a cost to their investment in fertility. The project will develop and test new evolutionary theory that explores how male reproductive biology evolves in the face of this unappreciated constraint, research that will provide general insight into male fertility and infertility.
An evolutionary approach to understanding chemical cues used in mate choice. This project will combine evolutionary biology with molecular and chemical ecology to gain a fundamental understanding of the role chemicals play in animal communication. By drawing on novel and innovative techniques, this project will place Australia at the forefront of this discipline and contribute to Australia's capacity to control pests.
Discovery Early Career Researcher Award - Grant ID: DE140100476
Funder
Australian Research Council
Funding Amount
$393,000.00
Summary
Under female control: egg defence, adaptive sex allocation, and sperm selection. Sexual conflict is prevalent at the gametic level, and females may respond to sperm competition via fertilisation barriers that mediate sperm entry. Surprisingly, the extent of female control over fertilisation is unknown, and the specific mechanisms that females utilise to manipulate fertilisation events are poorly understood. This project will combine innovative investigations that utilise whole organisms and in v ....Under female control: egg defence, adaptive sex allocation, and sperm selection. Sexual conflict is prevalent at the gametic level, and females may respond to sperm competition via fertilisation barriers that mediate sperm entry. Surprisingly, the extent of female control over fertilisation is unknown, and the specific mechanisms that females utilise to manipulate fertilisation events are poorly understood. This project will combine innovative investigations that utilise whole organisms and in vitro fertilisation technology to study their gametes in isolation. The project offers pioneering work on gametic interactions that have not previously been characterised. It will extend knowledge on the mechanisms that underpin successful mammalian fertilisation and provide critical insight into the etiology of infertility.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.
Discovery Early Career Researcher Award - Grant ID: DE130100018
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
Understanding bioacoustics in plants. From lush tropical rainforests to small urban gardens, plants take advantage of the surrounding soundscape to flourish, yet how they do this is still unknown. This will be the first experimental study to explore how and why plants sense sound in their environment, hence pioneering a brand-new research area in behavioural and evolutionary ecology.
Manipulating population sex ratio to eradicate invasive mouse populations. This project aims to use house mice, an Australian pest of economic importance which is also a highly tractable system for testing evolutionary theory and generating practical outcomes. Manipulating population sex ratio is a powerful tool for either enhancing the viability of threatened species or decimating pests. However, despite much scientific effort testing sex ratio theory, the cryptic mechanisms driving sex allocat ....Manipulating population sex ratio to eradicate invasive mouse populations. This project aims to use house mice, an Australian pest of economic importance which is also a highly tractable system for testing evolutionary theory and generating practical outcomes. Manipulating population sex ratio is a powerful tool for either enhancing the viability of threatened species or decimating pests. However, despite much scientific effort testing sex ratio theory, the cryptic mechanisms driving sex allocation remain unidentified, hindering progress in these fields. The project will identify the mechanisms by which sex ratio adjustments are made and establish how individual-level responses influence insular population structure and growth. It will provide benefits by assisting Australia's efforts in eradicating invasive mouse populations.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