Search for dissertations about: "Evolutionary"
Showing result 21 - 25 of 1234 swedish dissertations containing the word Evolutionary.
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21. Archaeological Genetics - Approaching Human History through DNA Analysis
Abstract : There are a variety of archaeological questions, which are difficult to assess by traditional archaeological methods. Similarly, there are genetic and population genetic questions about human evolution and migration that are difficult to assess by studying modern day genetic variation. READ MORE
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22. 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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23. Eco-evolutionary processes and community patterns--- novel avenues for studying biodiversity across spatial and temporal scales
Abstract : Understanding biodiversity patterns poses a persistent challenge due to the complex interconnections of ecological and evolutionary processes. The particular difficulty comes from the various processes influencing biodiversity patterns across different spatial scales. READ MORE
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24. Evolutionary Ecology of Floral Traits in Fragrant Orchids
Abstract : Why are flowers so diverse? Much of floral evolution is thought to be driven by pollinator-mediated selection. However, the connection between macroevolutionary patterns of floral diversity and microevolutionary processes remains poorly understood. In this thesis, I have used the fragrant orchids Gymnadenia conopsea s.s. READ MORE
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25. The Evolutionary Significance of Cambrian Ecdysozoan Trace Fossils
Abstract : The origin of most of the animal phyla is tied to the Cambrian explosion, a rapid diversification event that took place from about 540 million years ago. This diversification is coupled with a great number of concurrent metazoan body plan innovations such as the development of the coelom, antagonistic muscles and a through-gut. READ MORE