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Discovery Early Career Researcher Award - Grant ID: DE230101231
Funder
Australian Research Council
Funding Amount
$390,295.00
Summary
The effect of nutrition on male life history traits in humans. This project will provide answers to fundamental questions in evolutionary biology while identifying diet compositions that will benefit human health and well-being. Using a longitudinal public-health database, the Raine Study, and a theoretical framework from the field of Nutritional Ecology, the project will provide new knowledge on how nutrition affects key life-history traits in humans including immune function, reproductive heal ....The effect of nutrition on male life history traits in humans. This project will provide answers to fundamental questions in evolutionary biology while identifying diet compositions that will benefit human health and well-being. Using a longitudinal public-health database, the Raine Study, and a theoretical framework from the field of Nutritional Ecology, the project will provide new knowledge on how nutrition affects key life-history traits in humans including immune function, reproductive health, physical appearance, and healthy ageing. A systematic literature review on how diet impacts these life-history traits in animals generally, and an experimental study of the effect of diet on health and reproduction in the house mouse (a lab analog species for humans) will complement the Raine Study findings.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 origins of gender. This project intends to address how the evolutionary phenomena of intra-sexual competition and inter-sexual conflict interact with economic circumstances to shape gendered behaviour and attitudes. These phenomena are important in evolution, economics, psychology and sociology, with implications for the economy and for the welfare of women and men. The project predicts that gender-related culture arises, partially, out of mating market dynamics. The research crosses traditi ....The origins of gender. This project intends to address how the evolutionary phenomena of intra-sexual competition and inter-sexual conflict interact with economic circumstances to shape gendered behaviour and attitudes. These phenomena are important in evolution, economics, psychology and sociology, with implications for the economy and for the welfare of women and men. The project predicts that gender-related culture arises, partially, out of mating market dynamics. The research crosses traditional boundaries between biology and economics to investigate the forces giving rise to gendered behaviour and resulting patterns of marriages, violence, political preferences and occupational choices. The project may provide new insights into the links between gender and violence, within-family conflicts, and gender roles in the home and workplace.Read moreRead less
Understanding animals through their movement. This project aims to develop a suite of analytical methods to understand animals' behaviour through their movement patterns. Animal movement patterns encode detailed information about their behavioural state. Collecting and analysing animal movement trajectories can provide us with completely new insights to behaviour. Recent developments in bio-logging technologies have provided an incredible amount of rich data on free-ranging animals. This project ....Understanding animals through their movement. This project aims to develop a suite of analytical methods to understand animals' behaviour through their movement patterns. Animal movement patterns encode detailed information about their behavioural state. Collecting and analysing animal movement trajectories can provide us with completely new insights to behaviour. Recent developments in bio-logging technologies have provided an incredible amount of rich data on free-ranging animals. This project will develop a suite of analytical techniques to interrogate this data through a combination of approaches, from fine scale experiments in the laboratory to tracking animal trajectories from the International Space Station. The findings will deliver major benefits to the broader community by transforming our ability to manage and conserve animal stocks.Read moreRead less
Sexual conflict and the evolution of nuptial gifts. This project aims to understand how sexual conflict drives the evolution of “manipulative” nuptial gifts in male arthropods and how females respond to ingesting these gifts. Nuptial food gifts comprise materials (other than sperm) that are offered by males to females to consume at mating, and are an integral feature of the mating systems of a wide variety of arthropods. The project will study the decorated cricket, a species where males produce ....Sexual conflict and the evolution of nuptial gifts. This project aims to understand how sexual conflict drives the evolution of “manipulative” nuptial gifts in male arthropods and how females respond to ingesting these gifts. Nuptial food gifts comprise materials (other than sperm) that are offered by males to females to consume at mating, and are an integral feature of the mating systems of a wide variety of arthropods. The project will study the decorated cricket, a species where males produce a nuptial food gift that contains a cocktail of chemicals known to influence female reproduction when eaten. The project is expected to strengthen Australia’s international standing in evolutionary research and help train the next generation of evolutionary biologists.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.
Discovery Early Career Researcher Award - Grant ID: DE150101853
Funder
Australian Research Council
Funding Amount
$356,000.00
Summary
One genome but two sexes: Conflict and the evolution of sexual dimorphism. How can males and females display striking sex differences, when they primarily share the same set of genes? By experimentally evolving the degree of sexual dimorphism in Drosophila melanogaster, this project endeavours to address key issues at the heart of evolutionary biology. This project aims to deliver a novel, data-rich resource with which to explore the mechanisms and consequences of sexual dimorphism evolution, to ....One genome but two sexes: Conflict and the evolution of sexual dimorphism. How can males and females display striking sex differences, when they primarily share the same set of genes? By experimentally evolving the degree of sexual dimorphism in Drosophila melanogaster, this project endeavours to address key issues at the heart of evolutionary biology. This project aims to deliver a novel, data-rich resource with which to explore the mechanisms and consequences of sexual dimorphism evolution, to expand current understanding of this fundamental evolutionary paradox.Read moreRead less
Adaptive function of insect cuticular lipids. Insects secrete onto their surface a cocktail of high melting-point waxes. These biological compounds have been found to be involved in communication but are also thought to protect the insect from water loss and pathogen invasion. Insects represent the most abundant group of animals on Earth. It has been suggested that the dual role of surface waxes in ecological adaptation and reproduction may be key to their remarkable divergence. However, little ....Adaptive function of insect cuticular lipids. Insects secrete onto their surface a cocktail of high melting-point waxes. These biological compounds have been found to be involved in communication but are also thought to protect the insect from water loss and pathogen invasion. Insects represent the most abundant group of animals on Earth. It has been suggested that the dual role of surface waxes in ecological adaptation and reproduction may be key to their remarkable divergence. However, little is known of the function of individual compounds within mixtures of insect waxes. Using chemical analysis, neurophysiology and whole animal performance, the aim of this project is to provide a detailed understanding of the function of insect surface wax with potential for bioinspired products.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE140101075
Funder
Australian Research Council
Funding Amount
$374,837.00
Summary
Ecophysiology and evolution of sleep and adaptive sleeplessness. The function of sleep is enigmatic, even though the treatment of costly sleep disorders requires an understanding of the function that sleep performs. This project approaches this enigma with the comprehensive study of sleep in diverse animals to examine ecological-induced plasticity and evolution of sleep. Using innovative technologies in real-world situations, this project will spearhead the study of sleep ecophysiology to identi ....Ecophysiology and evolution of sleep and adaptive sleeplessness. The function of sleep is enigmatic, even though the treatment of costly sleep disorders requires an understanding of the function that sleep performs. This project approaches this enigma with the comprehensive study of sleep in diverse animals to examine ecological-induced plasticity and evolution of sleep. Using innovative technologies in real-world situations, this project will spearhead the study of sleep ecophysiology to identify animals that are resilient to the negative effects of sleep loss, and will determine whether the evolution of new types of animal was associated with the co-evolution of new types of sleep. The outcomes will have wide-ranging implications for our view of sleep function, prescriptions for an optimal amount of sleep and human health and wellbeing.Read moreRead less
Constrained or strategic? Causes and consequences of variation in self-maintenance in wild birds. To live long and healthy lives, animals must defend themselves from diseases and repair damage due to wear and tear. This project will address what prevents animals from achieving optimal defences, and what the consequences are for ageing and survival.