Search for dissertations about: "mark-recapture"
Showing result 1 - 5 of 14 swedish dissertations containing the word mark-recapture.
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1. Population biology and conservation of beetles and pseudoscorpions associated with hollow oaks
Abstract : Many species associated with old trees are threatened, as this habitat has decreased severely in Europe during the last 200 years. In old oaks, hollows with wood mould often form in the trunks and these harbour a specialized fauna mainly consisting of beetles, flies and pseudoscorpions. READ MORE
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2. Metapopulation ecology of Osmoderma eremita - dispersal, habitat quality and habitat history
Abstract : This thesis starts with a review of different biodiversity assessment methods in forests and the rest deals with the metapopulation ecology of Osmoderma eremita, a threatened beetle living in hollow trees. I concentrate on the effect of dispersal, habitat quality and habitat history for the presence, population size and future survival of this species. READ MORE
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3. To Bee or Not to Be : Critical Floral Resources of Wild-Bees
Abstract : In recent decades, the development of strategies to prevent or slow the loss of biodiversity has become an important task for ecologists. In most terrestrial ecosystems wild-bees play a key role as pollinators of herbs, shrubs and trees. The scope of this thesis was to study 1) pollinator effectiveness of specialist bees vs. READ MORE
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4. Tomorrow is yesterday: early-life conditions shape ectotherm life histories
Abstract : Life history theory seeks to explain the overwhelming diversity of resource allocation strategies in nature by exploring how evolutionary forces optimise survival and reproduction within an organism’s environment. Central to this theory is that resources are finite, and thus increased investment into one trait may reduce resources available for another trait. READ MORE
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5. Population Genetic Analyses of Natal Dispersal and Substructure in Three Bird Species
Abstract : Genetic variation within and among populations is a result of past and ongoing processes. Among the most important of such processes are dispersal, habitat fragmentation and selection. This thesis use neutral genetic variation as a tool to investigate these processes in three bird species. READ MORE