Search for dissertations about: "Öland"
Showing result 21 - 25 of 58 swedish dissertations containing the word Öland.
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21. Monitoring biodiversity in cultural landscapes: development of remote sensing- and GIS-based methods
Abstract : In this thesis, I explore the relationships between structural and compositional landscape properties, and species diversity, using remotely sensed data on a variety of spatial scales. The thesis shows that increased landscape heterogeneity, measured using environmental and spectral variables that were used both separately and combined, is generally positively related to plant species richness. READ MORE
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22. Evolution of Spur Length in a Moth-pollinated Orchid
Abstract : There is considerable evidence that pollinator shifts can explain many differences in flower morphology between closely related plant species, but the extent to which pollinator shifts can explain the maintenance of among-population variation in floral traits within species is poorly known. In this thesis, I combined comparative and experimental approaches to examine the evolution of floral traits in the moth-pollinated orchid Platanthera bifolia. READ MORE
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23. Habitat selection, nest predation and conservation biology in a Black-tailed Godwit (Limosa limosa) population
Abstract : This thesis focuses on a black-tailed godwit (Limosa limosa) population, consisting of 35-40 pairs, that breeds on a grazed shore meadow on SE Gotland, Sweden. The small size of the population makes it more prone to extinction due to chance events, than a larger population.The godwits showed microhabitat preferences when choosing nest sites. READ MORE
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24. Population ecology and management of waders breeding on coastal meadows
Abstract : Many wader (Charadrii) populations are declining throughout in Europe, but the underlying causes are often poorly known and diverse. To fully grasp the reasons behind declines in vulnerable wader populations, it is crucial to understand the demography. READ MORE
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25. Höggotisk träskulptur i gamla Linköpings stift : [High gothic wooden sculptures in the medieval diocese of Linköping]
Abstract : With emphasis on the stylistic development, this thesis deals with dating and the pattern of distribution, of some 215 wooden sculptures from the period c. 1300-1375 in the medieval Diocese of Linköping. READ MORE