Sökning: "Land use competition"

Visar resultat 11 - 15 av 55 avhandlingar innehållade orden Land use competition.

  1. 11. Structure and Stability of Ecological Networks : The role of dynamic dimensionality and species variability in resource use

    Författare :David Gilljam; Bo Ebenman; Peter Münger; José Montoya; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : The main focus of this thesis is on the response of ecological communities to environmental variability and species loss. My approach is theoretical; I use mathematical models of networks where species population dynamics are described by ordinary differential equations. LÄS MER

  3. 12. Bee foraging and pollination : Consequences of spatial and temporal variation in flower resources

    Författare :Johanna Yourstone; Biodiversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Apoidea; bumblebee; foraging behavior; landscape ecology; land-use change; oilseed rape; trees; flower constancy; honeybee competition; functional traits; seminatural habitats; chili;

    Sammanfattning : Wild bees foraging in contemporary agricultural landscapes are, because of agricultural intensification, faced with the challenges of reduced flower-rich habitats, as well as a changed spatio-temporal distribution of flower resources. As a result of this and other stressors such as pesticide exposure, widespread declines of bees have been reported. LÄS MER

  4. 13. Trängsel i välfärdsstaten : Expertis, politik och rumslig planering i 1960- och 1970-talets Sverige

    Författare :Katarina Nordström; Margaret Hunt; Jenny Beckman; Jenny Andersson; Uppsala universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Fysisk riksplanering; land-use; knowledge production; spatial planning; co-production; regional development; 1960s; 1970s; Historia; History;

    Sammanfattning : This dissertation is concerned with knowledge production and governance of land-use. Its main focus is the development of the National Land-use Plan (fysisk riksplanering) in Sweden between 1965 and 1979. LÄS MER

  5. 14. Jordbruksmark i förändring. Drivkrafter bakom och förutsättningar för offentlig styrning i Sverige och Norge

    Författare :Elin Slätmo; Göteborgs universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; sustainable; land use; agriculture; landscape; change; driving forces; time-geography; actor-structure; context; scale; governance; spatial planning;

    Sammanfattning : With a focus on agricultural land use change, the overriding aim of this thesis is to contribute to the development of a more sustainable use and management of resources. A core requirement for doing so is to develop deeper knowledge of the ways we use resources and change land uses today. LÄS MER

  7. 15. On Food Price Implications from Expanded Bioenergy Production

    Författare :David Bryngelsson; Chalmers tekniska högskola; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; food price effects; Sub-Saharan Africa; partial equilibrium model; bioenergy; staple crops; land use competition; household survey;

    Sammanfattning : Bioenergy has been put forward as a solution to energy security and at the same time to climate change. It is, however, dependent on productive agricultural land, which is a limited resource. LÄS MER