Search for dissertations about: "Quercus"
Showing result 1 - 5 of 32 swedish dissertations containing the word Quercus.
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1. Comparative morphological studies of fossil and living plane trees (Platanaceae) and oaks (Quercus): taxonomy, ecology, evolution
Abstract : Morphological characters are essential for flowering plant identification, but also provide information about diversity patterns and ecological adaptation. In woody plant species, characters of the leaf are among the most useful and can be examined on fossils as well. READ MORE
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2. External Mycelia of Mycorrhizal Fungi - responses to elevated N in forest ecosystems
Abstract : Most plants live in symbiosis with mycorrhizal fungi. Mycorrhizal roots constitute the interface between the plant and the soil, and almost every fine root of forest trees in nitrogen-limited boreal and temperate forests is colonised by ectomycorrhizal (EM) fungi. READ MORE
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3. Dispersal and establishment of Quercus robur : importance of cotyledons, browsing and competition
Abstract : .... READ MORE
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4. The Vertical Distribution of Roots, Mycorrhizal Mycelia and Nutrient Acquisition in Mature Forest Trees
Abstract : The vertical distribution of the nutrient uptake of Norway spruce (Picea abies (L.) Karst.), European beech (Fagus sylvatica L.) and pedunculate oak (Quercus robur L. READ MORE
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5. The effect of climate on oak-based species interactions : annual number of leaf flushes and insect voltinism
Abstract : Plants interact with a large diversity of organisms, including insects and microorganisms. These species interactions are strongly influenced by climate, as illustrated by the advances in plant and insect phenology in response to increasing temperatures. READ MORE