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Comparative Paleogenomics of the Arctic Tundra Ecosystem: the genetic response of plants and animals to climate change. This project will use DNA from deep-frozen seeds and bones 100,000 years old to record how species respond to climate change - by adapting and surviving or by shifting ranges and moving. Very large numbers of genes will be examined to identify changes across the genomes of four plant and two animal species, and contrast the responses to major climatic shifts.
Adapting to a changing world: mothers as drivers of evolutionary change. This project will improve our understanding of how organisms will adapt to the unprecedented speed and magnitude of human-induced environmental change. By identifying how mothers modify their offspring to better match the prevailing environment, it will address the role of mothers in directing and accelerating adaptation in our changing world.
The physiology of biome shifts and macroevolutionary change: how did Australian skinks colonise the arid zone so successfully? This project will examine two of Australia's most diverse lizard lineages, Lerista and Ctenotus, and will identify the physiological and morphological traits that enabled them to adaptively radiate within the arid zone. It will highlight those traits likely to be adaptive for environments predicted to become widespread under climate change.
Continuous tooth replacement in mammals: revealing the fundamental processes in tooth generation and movement. This project will investigate how molar teeth are made in mammals by examining the nabarlek, or little rock-wallaby, which is one of a handful of mammals that is able to regenerate new molars throughout its life. These new teeth migrate through the bone in order to move into the correct position in the mouth. By investigating two well-studied organisms, the mouse and the tammar wallaby, ....Continuous tooth replacement in mammals: revealing the fundamental processes in tooth generation and movement. This project will investigate how molar teeth are made in mammals by examining the nabarlek, or little rock-wallaby, which is one of a handful of mammals that is able to regenerate new molars throughout its life. These new teeth migrate through the bone in order to move into the correct position in the mouth. By investigating two well-studied organisms, the mouse and the tammar wallaby, as well as the nabarlek itself, the developmental processes and genes involved in molar generation and movement will be revealed. This project will integrate findings in regenerative medicine, evolutionary biology, materials engineering and palaeontology to reveal the mechanisms and origins of this astounding capability.Read moreRead less
Resolving how five million years of dramatic climatic changes shaped Australia's unique fauna. Australia’s biota is a product of its unique heritage, tectonic history and most especially its climate. Over the past five million years it has been beset by a series of intense climatic shifts driven by a combination of global and regional factors. This project will be the first to track faunal responses to environmental changes across this critical interval. It will establish the dynamics of the ori ....Resolving how five million years of dramatic climatic changes shaped Australia's unique fauna. Australia’s biota is a product of its unique heritage, tectonic history and most especially its climate. Over the past five million years it has been beset by a series of intense climatic shifts driven by a combination of global and regional factors. This project will be the first to track faunal responses to environmental changes across this critical interval. It will establish the dynamics of the origin of the modern southern vertebrate fauna, analysing changes in diversity, diet and community structure. By exploring associations between phases of faunal turnover and key climatic transitions, it will bring a Southern Hemisphere perspective to evolutionary models of Cenozoic faunal change largely generated to date from Northern Hemisphere data.Read moreRead less
Faunal responses to past climatic and human impacts in eastern Australia. The Wellington Caves in central eastern New South Wales are Australia's most historically significant fossil locality and preserve one of the world's most complete records of vertebrate life spanning the past 4 million years. To date this unique archive has been vastly under-exploited as a source of information on how faunas respond to increased aridity and climatic variability, as well as human activities over the past 50 ....Faunal responses to past climatic and human impacts in eastern Australia. The Wellington Caves in central eastern New South Wales are Australia's most historically significant fossil locality and preserve one of the world's most complete records of vertebrate life spanning the past 4 million years. To date this unique archive has been vastly under-exploited as a source of information on how faunas respond to increased aridity and climatic variability, as well as human activities over the past 50 000 years. This project aims to elucidate how climate change drove the evolution of the modern fauna of eastern Australia by analysing changes in diversity, diet and community structure over time. It may also help break the 130-year climate-versus-humans deadlock over what drove the Pleistocene megafaunal extinctions.Read moreRead less
Evolution in tooth and claw: exploring the relationship between the radiation of marsupial herbivores and late Cenozoic climate change. Establishing how animals responded to past environmental changes is essential for understanding the ecology of modern species and managing them in light of contemporary climatic trends. By applying several novel analytical methods this project will unravel the links between the radiation of Australian marsupials and key stages in climatic evolution.
Identifying the genes and population histories that drive rapid adaptive change and speciation. This project will uncover the genetic variation and demographic histories that allow rapid adaptation and speciation in natural populations. It will leverage the powerful framework provided by Indo-Australian sea snakes, and new gene sequencing technologies, to reconstruct the evolutionary histories of genes, populations and species. Using this data, it will address inter-related key questions that ar ....Identifying the genes and population histories that drive rapid adaptive change and speciation. This project will uncover the genetic variation and demographic histories that allow rapid adaptation and speciation in natural populations. It will leverage the powerful framework provided by Indo-Australian sea snakes, and new gene sequencing technologies, to reconstruct the evolutionary histories of genes, populations and species. Using this data, it will address inter-related key questions that are critical to effective biodiversity conservation but have rarely been evaluated in the same taxon. It will address what genetic changes are involved in adaptive shifts and speciation, whether these originate de novo or from pre-existing variation and how gene flow and changes in population size promote or constrain adaptation and speciation.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE150101574
Funder
Australian Research Council
Funding Amount
$368,583.00
Summary
Evolution and Adaptation of the Human Microbiome. The bacteria within the human body (microbiome) are vital to human health, and alterations to these intricate microbial communities are now associated with disease. Using ancient DNA, this project aims to examine the evolutionary history of the human microbiome by exploring ancient bacterial communities preserved in calcified dental plaque (calculus) over the past 10 000 years. This will provide valuable information that reveals how these bacteri ....Evolution and Adaptation of the Human Microbiome. The bacteria within the human body (microbiome) are vital to human health, and alterations to these intricate microbial communities are now associated with disease. Using ancient DNA, this project aims to examine the evolutionary history of the human microbiome by exploring ancient bacterial communities preserved in calcified dental plaque (calculus) over the past 10 000 years. This will provide valuable information that reveals how these bacterial communities respond to alterations in human diet, environment, culture, and location. By monitoring changes in a natural modern system, this project aims to determine how these microbial communities established themselves within the human body, elucidating how the microbiome may respond in the future.Read moreRead less
Stories from the past: the impact of industrialisation on the human microbiome. This project aims to explore the history and origin of ‘Industrial’ diseases such as obesity, diabetes, heart disease and autism. Non-communicable, ‘Industrial’ diseases are rising at an alarming rate in Australia, and changes to the beneficial microorganisms within the human body (microbiota) may be to blame. This project will explore how human microbiota have changed over the past 100 years in response to cultural, ....Stories from the past: the impact of industrialisation on the human microbiome. This project aims to explore the history and origin of ‘Industrial’ diseases such as obesity, diabetes, heart disease and autism. Non-communicable, ‘Industrial’ diseases are rising at an alarming rate in Australia, and changes to the beneficial microorganisms within the human body (microbiota) may be to blame. This project will explore how human microbiota have changed over the past 100 years in response to cultural, environmental, and lifestyle factors linked with Industrialisation. This approach will allow stories from the past to inform modern medical treatment strategies and public health decisions in the future. The project will identify changes in environment, diet, hygiene, and medicine that have altered human microbiota in the past and sparked the Industrial disease epidemic in Australia today.Read moreRead less