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Human Impact and Environmental Change in the Lower Yangtze Delta, China. Based upon a combination of sediment-based proxies of palaeoenvironmental conditions this project attempts to link existing models of geomorphological and climatic variability for the Yangtze Delta to cultural changes evident in archaeological and historical records. The Yangtze valley was the home of agriculture in Asia and hence for the beginnings of village life and Chinese culture. The delta region has prograded over 10 ....Human Impact and Environmental Change in the Lower Yangtze Delta, China. Based upon a combination of sediment-based proxies of palaeoenvironmental conditions this project attempts to link existing models of geomorphological and climatic variability for the Yangtze Delta to cultural changes evident in archaeological and historical records. The Yangtze valley was the home of agriculture in Asia and hence for the beginnings of village life and Chinese culture. The delta region has prograded over 100 km since the early Holocene and there is a well- preserved succession of Neolithic and modern cultures across its surface. The project investigates the relative impact of Holocene river migration, sealevel and climate change on societies, and also the relative impact of societies on vegetation, eutrophication and erosion while the region was converted to an anthropogenic landscape. The results will enable models of human-environmental interactions to be compared with those developed for
Europe, Africa, Australia and the Middle East.Read moreRead less
Chemical signalling in the sea. This project aims to understand how eggs attract and select sperm, and how the environment influences these interactions. Differential sperm chemotaxis, a form of mate choice involving chemical signalling between eggs and sperm, has only been described in mussels, but may be a widespread form of gamete-level sexual selection. The project will study the biochemical and molecular basis of differential sperm chemotaxis in mussels, and the stability of gamete-level in ....Chemical signalling in the sea. This project aims to understand how eggs attract and select sperm, and how the environment influences these interactions. Differential sperm chemotaxis, a form of mate choice involving chemical signalling between eggs and sperm, has only been described in mussels, but may be a widespread form of gamete-level sexual selection. The project will study the biochemical and molecular basis of differential sperm chemotaxis in mussels, and the stability of gamete-level interactions under different environmental conditions. Improved fundamental knowledge of reproduction in a commercially important marine species may yield future commercial benefits for Australia’s marine food production sectorRead moreRead less
Sources of genetic and phenotypic variation in sexual selection. This project will contribute towards Australia's reputation as a country where excellent and original research in evolutionary biology is conducted. The project will focus on the evolution of mate choice in the Western Australian rainbowfish, which has never been formally studied. Our research will therefore work towards a better understanding of Australian native fauna. Conceptually, the work encompasses new and innovative experim ....Sources of genetic and phenotypic variation in sexual selection. This project will contribute towards Australia's reputation as a country where excellent and original research in evolutionary biology is conducted. The project will focus on the evolution of mate choice in the Western Australian rainbowfish, which has never been formally studied. Our research will therefore work towards a better understanding of Australian native fauna. Conceptually, the work encompasses new and innovative experimental procedures that will address fundamental questions in sexual selection. The results will ultimately be geared towards publication in the highest ranking journals, thereby promoting Australian science on the international stage. Australian science will further benefit from the training of young scientists.Read moreRead less
Postcopulatory sexual selection and intraspecific variation in sperm competition traits. This project will contribute towards Australia's burgeoning reputation as a country where excellent and original research in behavioural ecology and evolution is conducted. By focusing on the evolution and function of sperm and genitalic traits, the project will address fundamental questions at the core of contemporary evolutionary research, thereby yielding results that will have a significant international ....Postcopulatory sexual selection and intraspecific variation in sperm competition traits. This project will contribute towards Australia's burgeoning reputation as a country where excellent and original research in behavioural ecology and evolution is conducted. By focusing on the evolution and function of sperm and genitalic traits, the project will address fundamental questions at the core of contemporary evolutionary research, thereby yielding results that will have a significant international impact. Australian science will further benefit from the research fellow's established collaborations with international scientists and through the training of young scientists.Read moreRead less
Sperm Competition and Sexual Selection. Competition between the sperm of two males within a single female has had profound implications for the evolution of male reproductive biology and behaviour. However, the reasons why females should mate with more than one male and thus generate sperm competition remains an evolutionary puzzle. Few studies have examined sperm competition from the female perspective and indeed, female perspectives are currently the subject of considerable debate. Using in ....Sperm Competition and Sexual Selection. Competition between the sperm of two males within a single female has had profound implications for the evolution of male reproductive biology and behaviour. However, the reasons why females should mate with more than one male and thus generate sperm competition remains an evolutionary puzzle. Few studies have examined sperm competition from the female perspective and indeed, female perspectives are currently the subject of considerable debate. Using insects as models I will examine the benefits of sperm competition for females and thereby the selective pressures that favour multiple mating. Moreover, I will determine whether sexual selection can act after copulation.Read moreRead less
Sperm competition and the evolution of ejaculates. This research will yield results that are at the cutting-edge in evolutionary biology, that will have a significant international impact, promoting the international profile of Australian science. The award will foster a world-class centre for research, and will train internationally competitive research scientists, adding to Australia's scientific capabilities. Through the development of IVF techniques in frogs, the research has the potential ....Sperm competition and the evolution of ejaculates. This research will yield results that are at the cutting-edge in evolutionary biology, that will have a significant international impact, promoting the international profile of Australian science. The award will foster a world-class centre for research, and will train internationally competitive research scientists, adding to Australia's scientific capabilities. Through the development of IVF techniques in frogs, the research has the potential to contribute to conservation outcomes for Australia's native frog fauna via captive breeding programs. The research groups connections with local infertility clinics has the potential to inform those studying human sperm in a time of growing concern over rising human infertility. Read moreRead less
The evolution of female mating frequency and its consequences. This project explores the evolutionary significance of female mating frequency for male and female reproductive biology. The research proposes to use innovative approaches to examine the evolution of ejaculate characteristics, will focus on the evolution of sperm form and function, and will examine the fitness benefits of promiscuity from the females' perspective. The research uses both vertebrates and invertebrates as model organi ....The evolution of female mating frequency and its consequences. This project explores the evolutionary significance of female mating frequency for male and female reproductive biology. The research proposes to use innovative approaches to examine the evolution of ejaculate characteristics, will focus on the evolution of sperm form and function, and will examine the fitness benefits of promiscuity from the females' perspective. The research uses both vertebrates and invertebrates as model organisms to test predictions and assumptions of theoretical models relevant to both internal and external modes of fertilization. The design of this project will allow cutting-edge, theoretically informed and experimentally grounded conclusions to be drawn regarding selection under sperm competition.Read moreRead less
The benefits of sociality: understanding the relationship between cooperation, cognition and fitness. Cooperation may present unique cognitive challenges. Individuals perform behaviours that provide fitness benefits to others, exposing themselves to risk. The need to monitor the behaviour of group members, recognise suitable cooperative partners, and make corresponding behavioural adjustments to maximize the benefits of cooperation, may therefore be an important driver of social evolution. The r ....The benefits of sociality: understanding the relationship between cooperation, cognition and fitness. Cooperation may present unique cognitive challenges. Individuals perform behaviours that provide fitness benefits to others, exposing themselves to risk. The need to monitor the behaviour of group members, recognise suitable cooperative partners, and make corresponding behavioural adjustments to maximize the benefits of cooperation, may therefore be an important driver of social evolution. The relevance of understanding the relationship between cognition and cooperation is in how it affects the fitness of individuals and the stability of cooperation. This project aims to unveil this relationship by conducting one of the first comprehensive studies of the selective benefits of cognitive ability in a wild, cooperative bird species.Read moreRead less
The evolutionary biology of seminal fluid. This project will identify proteins within seminal fluid that impact sperm performance and male fertility. The work will derive new insights into the evolution of seminal fluid proteins, while simultaneously exploring how environmental factors such as diet impact male fertility in animals and humans.
Evolution of the mammalian baculum. This project aims to test the hypothesis that the shape of the mammalian baculum (penis bone) evolved via its stimulatory effects on females that promote reproduction. The baculum is the most morphologically divergent bone in the mammalian body. The reason for this divergence is one of the most puzzling enigmas of mammalian morphology. This project will use comparative evolutionary methods, quantitative genetics, morphometrics, behavioural analysis and techniq ....Evolution of the mammalian baculum. This project aims to test the hypothesis that the shape of the mammalian baculum (penis bone) evolved via its stimulatory effects on females that promote reproduction. The baculum is the most morphologically divergent bone in the mammalian body. The reason for this divergence is one of the most puzzling enigmas of mammalian morphology. This project will use comparative evolutionary methods, quantitative genetics, morphometrics, behavioural analysis and techniques from neurobiology and physiology to test this hypothesis. This project aims to address fundamental questions in reproductive biology.Read moreRead less