Search for dissertations about: "Biologisk mångfald"

Showing result 21 - 25 of 45 swedish dissertations containing the words Biologisk mångfald.

  2. 21. Effects of Farming Practice on Pollinators and Pollination across Space and Time

    Author : Georg Andersson; Biodiversitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Several studies have found that organic farms support higher biodiversity, but results vary between studies such that some also show no or even negative effects. There can be many reasons why studies comparing organic and conventional farming show conflicting results. READ MORE

  4. 22. Visualizing the abyss of time : Students’ interpretation of visualized deep evolutionary time

    Author : Jörgen Stenlund; Konrad Schönborn; Lena Tibell; Gunnar Höst; Camillia Matuk; Linköpings universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Deep evolutionary time; Visualization; Evolution; Science Education; Djup evolutionär tid; Visualiseringar; Naturvetenskapernas didaktik;

    Abstract : The immense time scales involved in Deep evolutionary time (DET) is a threshold concept in biology and interpreting temporal aspects of DET is demanding. DET is communicated through various visualizations that include static two-dimensional representations, low interactivity animations, as well as high interactivity interfaces. READ MORE

  5. 23. Natural and social dimensions of forest carbon accounting

    Author : Wilhelm Dubber; Institutionen för naturgeografi och ekosystemvetenskap; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Forest carbon fluxes; REDD ; boreal forest; LPJ-GUESS; BIOME-BGC; remote sensing;

    Abstract : Global forests store large amounts of carbon both in living biomass and in the soil. The ability of forests to counteract climate change by acting as carbon sinks have been recognized in global climate politics, such as the 2015 Paris agreement which calls for national commitments to reduce greenhouse gas emissions. READ MORE

  6. 24. The Earth : climate and anthropogenic interactions in a long time perspective

    Author : Jörgen Olofsson; Institutionen för naturgeografi och ekosystemvetenskap; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; anthropogenic; climate change; land use; biodiversity; carbon; dynamic global vegetation model; Holocene; pre-industrial; pollen; bison;

    Abstract : The Earth is a highly complex and dynamic system. Life has shaped the entire planet and evolved in response to living conditions. Ecosystems are heavily affected by climate. Rapidly changing conditions imply considerable stress on several species and ecosystems, as well as to the most dominant species on the planet. READ MORE

  7. 25. Effect of climate and land use on niche utilization and distribution of nettle-feeding  butterflies

    Author : Hélène Audusseau; Niklas Janz; Sören Nylin; Matthew Forister; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; zoologisk ekologi; Animal Ecology;

    Abstract : Anthropogenic changes in climate and land use are causing a dramatic erosion of biodiversity. To understand this erosion, and predict future transformations of biodiversity, we need to understand better species’ response to these changes at different spatial and temporal scales. READ MORE