Sökning: "invasive species"

Visar resultat 16 - 20 av 125 avhandlingar innehållade orden invasive species.

  1. 16. Structural studies on lipopolysaccharides from haemophilus species

    Författare :Brigitte Twelkmeyer; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Background: Carbohydrates are indispensable mediators for a variety of cellular interactions. In biological systems carbohydrates are usually linked to a carrier as e.g. proteins or lipids. LÄS MER

  3. 17. Deliberating value : On the theory and practice of valuation of nature from neoclassical to ecological economics

    Författare :Lina Isacs; Cecilia Håkansson; Jasper Kenter; Therese Lindahl; Ulrika Gunnarsson-Östling; Neil Ravenscroft; KTH; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; ecological economics; neoclassical environmental economics; value; valuation; deliberative democracy; green GDP; alien invasive species; social cost of carbon; SCC; carbon values; stated preferences; trade-offs; Alan Holland; Dasgupta; ontology; epistemology; critical realism; autoethnograhpy; critical theory; reflexive methodology; ekologisk ekonomi; neoklassisk miljöekonomi; värde; värdering; deliberativ demokrati; grön BNP; invasiva arter; skadekostnader; klimat; modeller; SP; preferenser; trade-offs; ontologi; epistemologi; kritisk realism; autoetnografi; kritisk teori; reflexiv metodologi; Miljöstrategisk analys; Environmental Strategic Analysis;

    Sammanfattning : This thesis is about whether it is a good idea to place monetary value on nature, to remedy the fact that we treat it as having no particular value to us humans, although it clearly has. The thesis is based on five research papers that can be said to position themselves on opposite sides in the debate on monetisation of nature. LÄS MER

  4. 18. Invasive fungal infections in immunocompromised hosts : epidemiology and diagnostics

    Författare :Anders Krifors; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : This doctoral project aimed to attain a more in-depth knowledge of the epidemiology and diagnosis of invasive fungal infections. In Study I, we evaluated the diagnostic performance of PCR/ESI-MS. LÄS MER

  5. 19. Disturbances in food webs : Importance of species interactions from an ecological and evolutionary perspective

    Författare :Anna Åkesson; Anna Eklöf; György Barabas; Vasilis Dakos; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Biodiversity loss is occurring globally at an unprecedented pace. This is not only followed by ethical concerns; it also affects all levels of an ecosystem, with wide-spread implications for ecosystem functioning, services and human well-being. LÄS MER

  7. 20. Structuring factors for macroinvertebrate communities and the importance for ecosystem processing

    Författare :Pia Hertonsson; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; ephemeroptera; competition; Predation risk; brownification; invasive sp.; decomposition; grazing; growth; gastropoda; mortality; amphipoda; isopoda;

    Sammanfattning : Aquatic macroinvertebrates play important roles in our ecosystems and are essential for the ecosystem processing. An improved knowledge of structuring factors, such as competition and predation, and the way in which they operates in the macroinvertebrate community is crucial for our understanding of not only the macroinvertebrates but also the ecosystem in general. LÄS MER