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: 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
Discovery Early Career Researcher Award - Grant ID: DE150101521
Funder
Australian Research Council
Funding Amount
$349,699.00
Summary
The development, ecology and evolution of alternative phenotypes. Diseases, crops, livestock, and even some natural resources evolve, therefore comprehending evolutionary processes and their implications for humans is paramount. A paradigm shift in evolutionary theory was the realisation that genes are not the whole story, and that plasticity to the environment is vital for evolution. This highlights the importance of environmentally sensitive traits, such as conditional alternative phenotypes, ....The development, ecology and evolution of alternative phenotypes. Diseases, crops, livestock, and even some natural resources evolve, therefore comprehending evolutionary processes and their implications for humans is paramount. A paradigm shift in evolutionary theory was the realisation that genes are not the whole story, and that plasticity to the environment is vital for evolution. This highlights the importance of environmentally sensitive traits, such as conditional alternative phenotypes, where a genome can produce completely different morphologies in different environments. This project aims to investigate the development, evolutionary potential, and ecology of alternative phenotypes, contributing to our ability to understand and manage the most important of biological processes, evolution.Read moreRead less