Search for dissertations about: "tree dynamics"

Showing result 1 - 5 of 97 swedish dissertations containing the words tree dynamics.

  2. 1. The importance of small forest set-asides for saproxylic biodiversity at stand- landscape- and regional scales

    Author : Mari Therese Jönsson; Mittuniversitetet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; boreal forest; colonization-extinction dynamics; dendrochronology; dead-wood dynamics; disturbance dynamics; forest history; fragmentation; metapopulations; national inventories; old-growth forest; picea abies; saproxylic species; set asides; spatiotemporal dynamics; stand reconstructions; tree mortality; woody debris; wood-decaying fungi; woodland key habitats; Biology; Biologi;

    Abstract : .... READ MORE

  4. 2. Palaeoenvironment in North-Western Romania during the last 15 000 years

    Author : Angelica Feurdean; Barbara Wohlfarth; Ann-Marie Robertsson; Leif Björkman; Iustinian Petrescu; Katherine J Willis; Stockholms universitet; []
    Keywords : Northwest Romania; Gutaiului Mountains; pollenstratigraphy; macrofossil remains; Lateglacial; Holocene; tree refugia; tree dynamics; past climate; human influence;

    Abstract : The objectives of this thesis are to establish a chronological framework for environmental changes during the last 15,000 years in northwest Romania, to reconstruct the vegetation development, and to evaluate the underlying processes for forest dynamics. Furthermore, an overview of earlier and ongoing pollenstratigraphic work in Romania is provided. READ MORE

  5. 3. Nutritional ecology of selected Scandinavian tree species with special emphasis on hardwoods

    Author : Anna Hagen-Thorn; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Plant ecology; Växtekologi; Deciduous; Dynamics; Forest management; Nutrient sustainability;

    Abstract : This thesis considers several important aspects of nutrient dynamics and allocation in adult stands of Swedish forest tree species (Quercus robur L., Tilia cordata Mill., Fraxinus excelsior L., Betula pendula Roth. READ MORE

  6. 4. Expanding the Chlamydiae tree : Insights into genome diversity and evolution

    Author : Jennah E. Dharamshi; Thijs J. G. Ettema; Alexander Probst; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; PVC superphylum; Chlamydiae; chlamydia; intracellular; symbiosis; endosymbiont; pathogen; marine sediment; sponge microbiome; metagenomics; uncultured microbial diversity; phylogenomics; microbial evolution; eukaryote evolution; Biologi med inriktning mot molekylär evolution; Biology with specialization in Molecular Evolution;

    Abstract : Chlamydiae is a phylum of obligate intracellular bacteria. They have a conserved lifecycle and infect eukaryotic hosts, ranging from animals to amoeba. Chlamydiae includes pathogens, and is well-studied from a medical perspective. READ MORE

  7. 5. Equilibrium and Dynamics on Complex Networkds

    Author : Gino Del Ferraro; Erik Aurell; Bernard Derrida; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Statistical mechanics; complex networks; spin systems; non equilibrium dynamics; generalized belief propagation; message passing; cavity method; variational approaches; Fysik; Physics;

    Abstract : Complex networks are an important class of models used to describe the behaviour of a very broad category of systems which appear in different fields of science ranging from physics, biology and statistics to computer science and other disciplines. This set of models includes spin systems on a graph, neural networks, decision networks, spreading disease, financial trade, social networks and all systems which can be represented as interacting agents on some sort of graph architecture. READ MORE