Sökning: "Biodiversitet"

Visar resultat 1 - 5 av 56 avhandlingar innehållade ordet Biodiversitet.

  1. 1. Transformations towards Sustainable Food Systems : Pathways, Governance, and Actors in a Swedish and European Union Context

    Författare :Karin Eliasson; Tina-Simone Neset; Victoria Wibeck; Suvi Huttunen; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; The European Green Deal; Food policy; Focus groups; Food systems; Biodiversity; Accountability; Agency; Phosphorus; Soybean; Footprinting; Den europeiska gröna given; Livsmedelspolitik; Fokusgrupper; Livsmedelssystem; Biodiversitet; Ansvarsskyldighet; Handlingsutrymme; Fosfor; Sojabönor; Fotavtryck;

    Sammanfattning : Food systems are central to global sustainability, while being complex systems where places and people are intertwined over large distances and at different scales. Transformations towards sustainable food systems have been called for in both research and policy, and Sweden and the European Union have declared high ambitions to act as global leaders in these transformations. LÄS MER

  3. 2. Disturbance Effects on Plant and Mycorrhizal Communities in Sandy Grasslands

    Författare :Tim Krone Schnoor; Biodiversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Many ecosystems have historically been disturbed, either naturally or as part of a cultural management. Due to loss of species as a result of too little disturbance, disturbance must be considered as a potential tool for conservation and restoration in various ecosystems. In this thesis work, disturbance effects on a grassland system were studied. LÄS MER

  4. 3. Effects of Farming Practice on Pollinators and Pollination across Space and Time

    Författare :Georg Andersson; Biodiversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : 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. LÄS MER

  5. 4. Identification of Virulence Factors in Nematode-Trapping Fungi - Insights from Genomics, Transcriptomics and Proteomics

    Författare :Karl-Magnus Andersson; Biodiversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Nematode-trapping fungi; comparative genomics; comparative transcriptomics; proteomics; virulence factors; parasitism;

    Sammanfattning : Nematode-trapping fungi are soil-living organisms with the unique ability to capture and infect free-living nematodes. The interest in studying these fungi arises from their potential use as biological control agents for plant- and animal-parasitic nematodes. LÄS MER

  7. 5. Ecology of parasitoids and their hosts in oilseed rape fields

    Författare :Josef Berger; Biodiversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; parasitoids; herbivores; oilseed rape; pollen beetle; cabbage stem weevil; parasitoid community; niche separation; landscape scale; community composition; landscape configuration; Species abundance distribution SAD models; dispersal; metacommunity;

    Sammanfattning : Oilseed rape fields are a very common crop in the agricultural landscape of southern Sweden, and they can harbour surprisingly many insect species. Some of them are herbivores that feed on various parts of the oilseed rape plant, others are natural enemies of the herbivores, and even more species are tourists from the surrounding landscape. LÄS MER