Search for dissertations about: "Sympatric speciation"
Showing result 1 - 5 of 10 swedish dissertations containing the words Sympatric speciation.
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1. The role of Assortative Mating in the Initial Stages of Sympatric and Parapatric Speciation
Abstract : Divergence in the face of gene flow is perhaps the most wildly disputed subject among researchers through time. The debate is an old one and we find its origin as far back as the era of Darwin. READ MORE
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2. Exploring mechanisms of sympatric speciation
Abstract : .... READ MORE
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3. Bottlenecks and blowflies : Speciation, reproduction and morphological variation in Lucilia
Abstract : This thesis attempts to improve our understanding of the role of population size for the process of speciation. First, the effect of population size on speciation is studied using several meta-analyses of published laboratory experiments. READ MORE
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4. Speciation - What Can be Learned from a Flycatcher Hybrid Zone?
Abstract : Studies of hybrid zones offer important insights into the process of speciation. Much of the knowledge to be gained is dependent on an accurate estimation of the strength of pre- and post-zygotic isolation between hybridizing taxa. My results demonstrate that hybridization can variously affect different components of fitness. READ MORE
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5. Artificial neural networks in models of specialization and sympatric speciation
Abstract : This thesis deals with specialization and how it is linked to sympatric speciation. The trait driving specialization is a cue recognition trait modelled with artificial neural networks that exploiters use to discriminate beneficial resources from detrimental resources based on the signals of the resources. READ MORE