Search for dissertations about: "Ecological Botany"
Showing result 6 - 10 of 80 swedish dissertations containing the words Ecological Botany.
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6. On The Big Challenges of a Small Shrub : Ecological Genetics of Salix herbacea L
Abstract : The response of plants to climate change is among the main questions in ecology and evolution. Faced with changing conditions, populations may respond by adapting, going extinct or migrating. Fine-scale environmental variation offers a unique mosaic to explore these alternatives. READ MORE
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7. Ecological studies of Baltic sea-shores : methods for botanical investigations of sea-shore meadows and reed-beds
Abstract : .... READ MORE
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8. Phylogeny of Selaginellaceae
Abstract : The phylogeny of Selaginellaceae, a small, but historically important family of heterosporous lycopods, has been the focus of this thesis. The approximately 700 extant species are herbaceous and distributed all over the world, with most species in the tropics and subtropics. READ MORE
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9. Colonisation and extinction of vascular plants on islands off the Swedish east coast
Abstract : Persistence of species is a function of colonisation and extinction among patches at a regional scale. A decrease in area and an increased isolation of suitable patches may result in a decreased colonisation rate and an increased extinction rate among species. READ MORE
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10. Life History and Tolerance and Resistance against Herbivores in Natural Populations of Arabidopsis thaliana
Abstract : In this thesis, I combined observational studies with field and greenhouse experiments to examine selection on life history traits and variation in tolerance and resistance against herbivores in natural populations of the annual herb Arabidopsis thaliana in its native range. I investigated (1) phenotypic selection on flowering time and plant size, (2) the effects of timing of germination on plant fitness, (3) the effect of leaf damage on seed production, and (4) correlations between resistance against a specialist and a generalist insect herbivore. READ MORE