Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"eusocial insects"”.
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Nutritional status influences behavior, physiology, and brain gene expression in primitively eusocial Polistes metricus paper wasps
… to influence the division of labor in advanced eusocial insects such as the honey bee, but it is not known whether differences in nutrition can influence the social behavior of primitively eusocial insects such as Polistes metricus paper wasp. This is an interesting consideration because if the …
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An investigation of the sociogenetic structure of the endemic fynbos ant, Camponotus klugii, via the use of microsatellites
Eusocial insects, in particular ants, demonstrate great variability in their sociogenetic structure with regards to colony organization, queen number, queen mating frequency, levels of relatedness and worker reproduction. Within this study I perform an analysis on two groups of ant nests of the …
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Genetic and Hormonal Regulation of Worker Behavioural Development in Honey Bees
… development might have evolved in the highly eusocial insects has been studied only theoretically. I performed three experiments with male honey bees (drones) to investigate how mechanisms regulating worker behavioral development may have evolved. I demonstrated common hormonal and genetic …
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Colony Life History in the Bumble Bee Bombus terrestris: Interactions, Timing and Control.
… regulation in an evolutionary context is the eusocial insects, since their colonies can themselves be regarded as possessing life histories. This is because whole colonies must develop and reproduce effectively in order to pass on the genes of their members. However, as not all colony members …
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Transgenic Tools in Ants and the Representation of Alarm Pheromones in the Ant Antennial Lobe
… most experimentally tractable model system among eusocial insects. We then used these transgenic lines to study outstanding questions in social insect olfaction.</p>
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The role of small RNAs in caste determination and differentiation in the bumble bee, Bombus terrestris
… caste determination and differentiation in eusocial insects allows researchers to address fundamental aspects of evolution and development. In this regard, little is known of the role of gene regulation by microRNAs (miRNAs), non-coding RNA molecules that regulate development in animals and …
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Genomic studies of social evolution in bees
The eusocial insects (ants, termites, and some bees and wasps) are paragons of social complexity, with their highly organized societies comprised of primarily sterile workers, headed by one or a few reproductives. Despite a rich body of theoretical, empirical, and natural history research on social …
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Kinship Infrastructure Design: Evaluating Diversity and Resilience in Emergency Response Systems Through Agent-Based Modeling
… Adapted from studies of genetic relatedness in eusocial insects, the kinship coefficient (Φ) measures similarity and diversity among system components by calculating the degree to which their functional traits—encoded as a synthetic genome—match. This research investigates whether a system …
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Design and Modelling of Decentralised Task Allocation Mechanisms in Groups of Mobile Agents
… swarm based systems) and multi-robot systems. Eusocial insects, for instance ants and bees, are known to display remarkable capabilities of allocating tasks to nest mates when the colony gets perturbed by any internal and/or external factors. Proper understanding of the underlying mechanisms of …
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Molecular basis of life-history evolution: a tale of two insects
… differences in life histories in one eusocial and one non-social insect. Eusocial insects are good candidates to study mechanisms of tradeoffs between fecundity and survival. Eusocial insect queens enjoy a long lifespan that does not come at the cost of reduced fecundity, whereas …
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The Life History of Damaraland Mole-rats Fukomys damarensis: Growth, Ageing and Behaviour
… to the structurally complex societies of some eusocial insects. However, because few studies of mole-rats have quantified individual variation in growth and behaviour across long periods of development, it has remained unclear the extent to which mole-rat societies, and the features of …
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Mechanisms involved in eusocial evolution in bees
… and the most extreme form of group living, eusociality, has evolved multiple independent times within the bees. Recent advances in genome sequencing and analysis technologies have opened up new research avenues for large-scale studies of molecular function and evolution in non-model species …