Search for dissertations about: "functional traits"

Showing result 1 - 5 of 142 swedish dissertations containing the words functional traits.

  1. 1. Functional Traits in Sphagnum

    Author : Fia Bengtsson; Håkan Rydin; Gustaf Granath; Cronberg Nils; Sari Juutinen; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; peat mosses; functional traits; NPP; decay resistance; N2 fixation; desiccation resistance; climate; Biology with specialization in Ecological Botany; Biologi med inriktning mot ekologisk botanik;

    Abstract : Peat mosses (Sphagnum) are ecosystem engineers that largely govern carbon sequestration in northern hemisphere peatlands. I investigated functional traits in Sphagnum species and addressed the questions: (I) Are growth, photosynthesis and decomposition and the trade-offs between these traits related to habitat or phylogeny?, (II) Which are the determinants of decomposition and are there trade-offs between metabolites that affect decomposition?, (III) How do macro-climate and local environment determine growth in Sphagnum across the Holarctic?, (IV) How does N2 fixation vary among different species and habitats?, (V) How do species from different microtopographic niches avoid or tolerate desiccation, and are leaf and structural traits adaptations to growth high above the water table?Photosynthetic rate and decomposition in laboratory conditions (innate growth and decay resistance) were related to growth and decomposition in their natural habitats. READ MORE

  2. 2. Traits & Talks : Lessons about Personality and Deliberation from the Negotiations between Nelson Mandela and FW de Klerk

    Author : Julia Jennstål; Bo Bengtsson; Per-Ola Öberg; Jakob Elster; Uppsala universitet; []
    Keywords : SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; Personality; five-factor model; big five; traits; facets; interactionalism; deliberation; collective decision-making; negotiations; South Africa; Nelson Mandela; FW de Klerk; Statskunskap; Political Science;

    Abstract : Compelling research in political psychology and personality psychology points to the significance of personality as a determinant of political behavior. Within a comprehensive framework for the study of personality in politics, the so-called Five-level Model (FLM), this thesis primarily focuses on the level of personality traits, where the well-established Five-factor model (the ‘Big Five’) is applied. READ MORE

  3. 3. Shaping urban environments through human selection for plant traits

    Author : Julie Goodness; Erik Andersson; Thomas Elmqvist; Pippin M. L. Anderson; Sarel Cilliers; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; NATURVETENSKAP; SAMHÄLLSVETENSKAP; NATURAL SCIENCES; SOCIAL SCIENCES; Cape Town; cities; ecosystem services; environmental management; functional traits; interdisciplinary; landscaping preferences; residential landscapes; social-ecological system; Stockholm; traits; urban ecology; Kapstaden; städer; kulturella ekosystemtjänster; ekosystemtjänster; miljöförvaltning; funktionella egenskaper; tvärvetenskaplig; anläggningspreferenser; bostadsmiljö; socialekologiska system; Stockholm; växtegenskaper; urban ekologi; vetenskap om hållbar utveckling; Sustainability Science;

    Abstract : Cities, as home to the majority of the world’s people, are significant sites for addressing challenges of achieving sustainability and securing human wellbeing. Urban environments are complex social-ecological systems, and meeting these challenges requires better understandings of the interactions of social and ecological elements. READ MORE

  4. 4. Linking functional traits and cultural ecosystem services in urban areas through human preferences

    Author : Julie Goodness; Erik Andersson; Thomas Elmqvist; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Functional traits; ecosystem services; cultural ecosystem services; urban; cities; human perception; preferences; ecosystem management; vetenskap om hållbar utveckling; Sustainability Science;

    Abstract : Urban areas are now the daily lived experience for the majority of the world’s people, and it is therefore important to explore what kind of ecological communities and corresponding ecosystem functions and services are being generated in these environments. Urban areas are shaped by a variety of factors, but arguably one of the most influential is that of people, in terms of how their preferences and active selective choices for biota play out in the landscape. READ MORE

  5. 5. Effects of herbivory on arctic and alpine vegetation

    Author : Åsa Lindgren; Ove Eriksson; Jon Moen; Anders Angerbjörn; Ingibjörg S Jónsdóttir; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; herbivory; reindeer; rodents; functional traits; plant species composition; arctic; alpine; tundra; seed limitation; Carex bigelowii; Biology; Biologi; Plant Ecology; växtekologi;

    Abstract : The distribution of plant species and functional traits in alpine and arctic environments are determined by abiotic conditions, but also by biotic interactions. In this thesis, I investigate interactions among plants and herbivory effects on plant community composition and plant functional traits in three different regions: Swedish Lapland, Beringia (USA/Russia) and Finnmark (Norway). READ MORE