Search for dissertations about: "Honeybees"
Showing result 1 - 5 of 8 swedish dissertations containing the word Honeybees.
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1. Spatial Vision in Bees : Behavioural investigation of spatial resolution and contrast sensitivity
Abstract : Bees use multiple sensory modalities to perform day-to-day tasks. Light allows them to perceive objects and the general features of their surroundings, enabling them to find food and to navigate safely across the landscape. READ MORE
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2. Genome evolution of a bee-associated bacterium
Abstract : The use of large-scale comparative genomics allows us to explore the genetic diversity and mechanisms of evolution of related organisms. This thesis has focused on the application of such approaches to study Lactobacillus kunkeei, a bacterial inhabitant of the honeybee gut.We produced 102 novel complete genomes from L. READ MORE
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3. Evolution of symbiotic lineages and the origin of new traits
Abstract : This thesis focuses on the genomic study of symbionts of two different groups of hymenopterans: bees and ants. Both groups of insects have major ecological impact, and investigating their microbiomes increases our understanding of their health, diversity and evolution. READ MORE
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4. The effect of honeybee-specific lactic acid bacteria on american foulbrood disease of honeybees
Abstract : The honeybee, Apis mellifera, is one of the most economically important pollinators and highly valued for its honey and wax production. Managed honeybees occupy an increasingly critical role in agricultural productivity and food security. READ MORE
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5. Virus Dynamics in Naturally Varroa-Resistant Honeybee Populations
Abstract : The ectoparasitic mite, Varroa destructor, together with its associated viruses is the most significant threat to honeybee (Apis mellifera) health world-wide. Since the introduction of varroa to the new host species, the European honey bee (Apis mellifera), it has been responsible for the near complete eradication of wild and feral honeybee populations in Europe and North America. READ MORE