Ecological immunity in the Lepidoptera: unravelling the relationship between immune function, sperm quality, and reproductive success. The effect of juvenile immune challenge and an individual's population ecology on subsequent adult immune function, physiology and reproductive success is poorly understood, despite its ability to explain fundamental processes in sexual selection. This project will unravel the relationship between immune function, sperm quality, and reproductive success.
The molecular basis of sperm competition. This project aims to unravel the molecular basis of reproductive conflicts. Males compete for paternity and this continues after mating if females copulate and receive semen from multiple males. In ants and bees, molecules in males’ ejaculates recognise and kill rival males’ sperm. Reproductive proteins in leaf cutter ants’ seminal fluid may be the molecular agents of sperm competition. This project will investigate reproductive proteins and their functi ....The molecular basis of sperm competition. This project aims to unravel the molecular basis of reproductive conflicts. Males compete for paternity and this continues after mating if females copulate and receive semen from multiple males. In ants and bees, molecules in males’ ejaculates recognise and kill rival males’ sperm. Reproductive proteins in leaf cutter ants’ seminal fluid may be the molecular agents of sperm competition. This project will investigate reproductive proteins and their functioning and effects on reproductive success. This project will show how reproductive conflicts over paternity operate on the protein level and may lead to novel avenues for future pest control.Read moreRead less
Quantitative measures of brain evolution in early vertebrates. Why and how do brains become bigger? Using new quantitative methods of assessing the number of neurons with respect to both brain and body size, the project will trace the ways in which the brain (and its component parts) has evolved in a range of early vertebrates. The results will enable us to trace the evolution of cognitive abilities in animals.
Avian embryonic perception: what role for good vibrations? It has long been recognised that animals perceive environmental information before they are born. This project will test for the first time whether such avian communication systems rely on vibrations. We will test the hypothesis that cryptic communication using rhythmic vibration, is essential for embryonic birds to sense parental cues regarding rising temperatures, by measuring neural control in adults, as well as embryonic perception a ....Avian embryonic perception: what role for good vibrations? It has long been recognised that animals perceive environmental information before they are born. This project will test for the first time whether such avian communication systems rely on vibrations. We will test the hypothesis that cryptic communication using rhythmic vibration, is essential for embryonic birds to sense parental cues regarding rising temperatures, by measuring neural control in adults, as well as embryonic perception and response. By experimentally manipulating family communication we will demonstrate the potential for prenatal vibrations to alter developmental outcomes, enriching our understanding of avian sensory development.These data are important for the commercial poultry industry and for captive breeding programs. Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE240100352
Funder
Australian Research Council
Funding Amount
$388,487.00
Summary
Reconstructing evolutionary history of termite collective nest construction. This project aims to ask and answer fundamental questions about how complex animal collective behaviour has evolved in the history of life. It combines the quantification of termite building behaviour and nest structures using a state-of-the-art video tracking technique with the latest molecular phylogenetics. This project expects to provide the first comprehensive information on termite collective building in a phyloge ....Reconstructing evolutionary history of termite collective nest construction. This project aims to ask and answer fundamental questions about how complex animal collective behaviour has evolved in the history of life. It combines the quantification of termite building behaviour and nest structures using a state-of-the-art video tracking technique with the latest molecular phylogenetics. This project expects to provide the first comprehensive information on termite collective building in a phylogenetic framework, which will be a showcase study of future studies on the evolution of complex phenotypes and resolve a debate over termite social evolution. Furthermore, it provides new knowledge of Australian native termite fauna as economically destructive pest insects.Read moreRead less
Australian Laureate Fellowships - Grant ID: FL100100066
Funder
Australian Research Council
Funding Amount
$1,523,582.00
Summary
New approaches for pest control and maintaining healthy environments under climate change. Natural environments are rapidly changing due to climate and human population pressure, affecting food supply and natural heritage. Insects and other invertebrates perform essential services like pollination, pest control and soil turnover, and provide food for wildlife. These services are under threat, and ways of maintaining them and protecting biodiversity need to be developed. This project will identif ....New approaches for pest control and maintaining healthy environments under climate change. Natural environments are rapidly changing due to climate and human population pressure, affecting food supply and natural heritage. Insects and other invertebrates perform essential services like pollination, pest control and soil turnover, and provide food for wildlife. These services are under threat, and ways of maintaining them and protecting biodiversity need to be developed. This project will identify the genetic and evolutionary mechanisms that insects use to deal with environmental changes and the processes that promote evolutionary resilience to safeguard environmental services. This should lead to guidelines for sustainable agricultural production and biodiversity protection in threatened environments like the Australian Alps.Read moreRead less
Macrophage control of mammalian growth and development. The immediate postnatal period in mammals is crucial for survival, long term health and productivity. This project is an international collaboration that aims to investigate how cells of the innate immune system called macrophages control somatic growth and development of mature organ function in the early postnatal period. The project aims to build upon investment in new animals models and a novel discovery to generate significant new know ....Macrophage control of mammalian growth and development. The immediate postnatal period in mammals is crucial for survival, long term health and productivity. This project is an international collaboration that aims to investigate how cells of the innate immune system called macrophages control somatic growth and development of mature organ function in the early postnatal period. The project aims to build upon investment in new animals models and a novel discovery to generate significant new knowledge that will challenge current concepts of mammalian growth control. The outcomes will enhance Australia's international reputation in the fields of physiology, immunology and developmental biology. Read moreRead less
Diversity and Defence: Characterisation of Extremely Variable Defensive Proteins from Sea Urchins. Antibiotic resistance is a global problem. In this project, we will study a new class of potential antibiotics - purpuratins - from sea urchins. Purpuratins are unique when compared to other antimicrobials because of their extreme structural diversity. By investigating that diversity, we will shed new light on biological methods for targeted drug design. This information will be critical to the de ....Diversity and Defence: Characterisation of Extremely Variable Defensive Proteins from Sea Urchins. Antibiotic resistance is a global problem. In this project, we will study a new class of potential antibiotics - purpuratins - from sea urchins. Purpuratins are unique when compared to other antimicrobials because of their extreme structural diversity. By investigating that diversity, we will shed new light on biological methods for targeted drug design. This information will be critical to the development of tailor-made antibiotics that are fine-tuned to kill particular micro-organisms. Our work represents a collaboration between researchers in Australia and the United States. It contributes directly to international scientific co-operation whilst providing high level training for young Australian researchers and students. Read moreRead less
Do crayfish use the information carried by low-level electrical signals in the environment? Many vertebrates detect electric fields. Fish communicate electrically. No invertebrate has been shown to do so. We have evidence that crayfish change their behaviour following exposure to low-level, waterborne electrical signals. Crayfish behaviour is currently the preferred model for studying the neurobiology of social hierarchies in animals. Evidence that information is passing from either predators or ....Do crayfish use the information carried by low-level electrical signals in the environment? Many vertebrates detect electric fields. Fish communicate electrically. No invertebrate has been shown to do so. We have evidence that crayfish change their behaviour following exposure to low-level, waterborne electrical signals. Crayfish behaviour is currently the preferred model for studying the neurobiology of social hierarchies in animals. Evidence that information is passing from either predators or conspecifics through an undescribed electrosensory channel would fundamentally change the direction of that research. Behaviour modification using electrical signals could also prove to be a valuable tool in crustacean aquaculture. This is a proposal to discover the nature and behavioural implications of crayfish electroreception.Read moreRead less
Molecular control of postnatal heart development. This project aims to improve our understanding of how the heart develops after birth and the molecules that control this process. Recent advances in tissue engineering have opened up opportunities for the generation of synthetic tissues but these studies have also highlighted a fundamental knowledge gap in our understanding of how complex tissues mature to prepare for life as an adult. Much is known about the molecules that control early embryoni ....Molecular control of postnatal heart development. This project aims to improve our understanding of how the heart develops after birth and the molecules that control this process. Recent advances in tissue engineering have opened up opportunities for the generation of synthetic tissues but these studies have also highlighted a fundamental knowledge gap in our understanding of how complex tissues mature to prepare for life as an adult. Much is known about the molecules that control early embryonic development but little is known about the molecules that control maturation after birth. This project aims to build new knowledge that is expected to improve our ability to generate mature heart muscle cells for stem cell applications, tissue repair and regeneration.Read moreRead less