Search for dissertations about: "Jonas Dahlgren"

Found 3 swedish dissertations containing the words Jonas Dahlgren.

  2. 1. Interactions between gray-sided voles (Clethrionomys rufocanus) and vegetation in the Fennoscandian tundra

    Author : Jonas Dahlgren; Lauri Oksanen; Johan Olofsson; John Terborgh; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; gray-sided voles; tundra vegetation; trophic cascades; plant-herbivore interactions; bilberry; plant communities; herbivory; plant resistance; Terrestrial ecology; Terrestisk ekologi;

    Abstract : I have, in this thesis, studied the interactions between gray-sided voles (Clethrionomys rufocanus) and tundra vegetation, on islands in, and mainland sites close to the lake Iešjávri, in northern Norway. As isolated islands are virtually free of predation, I have been able to compare plant-herbivore interactions in the presence and absence of predators. READ MORE

  4. 2. Decision-making and decision support connected to biogas use in Sweden

    Author : Sofia Dahlgren; Stefan Anderberg; Thomas Magnusson; Jonas Ammenberg; Iva Ridjan Skov; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : Human activities cause many sustainability challenges in the world, which need to be dealt with. One way to decrease the negative impacts related to those challenges is by replacing currently dominating technologies with better, alternative technologies. READ MORE

  5. 3. The role of biogas in a more sustainable energy system in Sweden

    Author : Sofia Dahlgren; Stefan Anderberg; Thomas Magnusson; Jonas Ammenberg; Mikael Lantz; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biogas; CBG; LBG; Energy users; Sustainable transitions; Sustainability assessments;

    Abstract : There are numerous problems in the world that need to be dealt with in order to achieve sustainable development. The energy system has significant negative impacts on many of these problems, and there is a need for a transition towards more sustainable energy. READ MORE