Search for dissertations about: "POPULATIONS"
Showing result 1 - 5 of 2472 swedish dissertations containing the word POPULATIONS.
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1. Modelling animal populations
Abstract : This thesis consists of four papers, three papers about modelling animal populations and one paper about an area integral estimate for solutions of partial differential equations on non-smooth domains. The papers are: I. Å. Brännström, Single species population models from first principles. READ MORE
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2. Cardiovascular complications following covid-19 : population-based register studies
Abstract : Background and Aim: COVID-19 is a multiorgan disease and there has been increasing reports of cardiovascular complications. However, previous studies have shown conflicting results and have mainly included hospitalized individuals with severe disease. READ MORE
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3. Two-Sex Branching Populations
Abstract : We introduce a Two-Sex Galton-Watson Branching Process, to study the dynamics of two-sex populations. It allows individuals to interact with each other in order to form couples (or mating units), and each of these couples produces children for the new generation. READ MORE
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4. Evolutionary ecology of arctic char (Salvelinus alpinus (L.)) : Intra- and interspecific interactions in circumpolar populations
Abstract : This thesis examines a suite of ecological and genetic mechanisms influencing the fundamental and realized niche borders of European and North American populations of the Arctic char (Salvelinus alpinus (L.)) species complex in allopatry as well as in sympatry with brown trout (Salmo trutta) or brook trout (Salvelinus fontinalis). READ MORE
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5. Quantitative genetic variation in declining plant populations
Abstract : The ecological and genetic effects of habitat fragmentation are an issue of major concern in current conservation biology. Habitat fragmentation results in smaller habitat areas and as a consequence smaller and more isolated populations. Many habitats have become fragmented through human activities such as forestry and agricultural development. READ MORE