Search for dissertations about: "seed"
Showing result 1 - 5 of 374 swedish dissertations containing the word seed.
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1. Functional and genetic studies in type 2 diabetes and obesity
Abstract : Type 2 diabetes (T2D) and obesity are highly prevalent disorders reflecting a complex interplay of genetics, epigenetics, and environment. They constitute serious health problems and lead to significant morbidity and mortality. READ MORE
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2. Seed mobility and connectivity in changing rural landscapes
Abstract : The success or failure of many organisms to respond to the challenges of habitat destruction and a warming climate lies in the ability of plant species to disperse between isolated habitats or to migrate to new ranges. European semi-natural grasslands represent one of the world's most species-rich habitats at small scales, but agricultural intensification during the 20th century has meant that many plant species are left only on small fragments of former habitat. READ MORE
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3. The role of regeneration in plant niche differentiation and habitat specialization
Abstract : To predict the effects of environmental change and nature management on the distribution of plant species, it is crucial to understand the mechanisms of plant niche differentiation and habitat specialization. The importance to habitat specialization of particular plant traits and requirement of the regenerative phase of the plants life has received scanty interest. READ MORE
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4. Long-term studies of succession : Colonisation and seed banks
Abstract : Using data from long-term studies of the vegetation in two areas under primary succession, patterns of colonisation and the accumulated seed bank during plant succession were studied.At century-old small islands in Lake Hjälmaren, Sweden, the genetic structure of differently old populations of Moehringia trinervia and Lythrum salicaria was studied, using allozyme variation for M. READ MORE
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5. On the Ecology and Evolution of seed and Bud Dormancy
Abstract : This thesis considers the ecological and evolutionary significance of seed and bud dormancy. First, I present theoretical support to the idea that seed dormancy may evolve as a strategy to reduce sib competition in temporally homogeneous environments. READ MORE