Sökning: "umbrella species"

Visar resultat 1 - 5 av 13 uppsatser innehållade orden umbrella species.

  1. 1. Analys av föda för vitryggig hackspett och rödlistade vedlevande skalbaggar : utvärdering av tre olika behandlingar

    Kandidat-uppsats, SLU/Dept. of Forest Ecology and Management

    Författare :Emma Mattsson; Lena Ostermann; [2023]
    Nyckelord :Vitryggig hackspett; vedlevande skalbaggar; paraplyart; rödlista; biologisk mångfald; död ved; restaurering;

    Sammanfattning : Den vitryggiga hackspetten har sedan 1950-talet blivit en sällsynt art i det svenska landskapet. Nedgången beror främst på det moderna skogsbruket där barrskog till stor del har ersatt blandbestånd och gammal lövskog. LÄS MER

  3. 2. Managing diversity : the forest development types as a framework for management within mixed forest systems

    Master-uppsats, SLU/Dept. of Landscape Architecture, Planning and Management (from 130101)

    Författare :Pernilla Fridberg; [2023]
    Nyckelord :urban forestry; urban woodland; recreational forests; forest structure; vegetation structure; forest development types; mixed forest systems; forest management; close-to-nature management; Scanian forest systems; sustainable forest management; ecological values; resilience; sustainable cities; biodiversity; ; profile diagrams; conservation efforts; herbaceous mixed stands; species diversity; reference landscapes; forest communities;

    Sammanfattning : The demand for both biodiversity and recreational forests is increasing. Management methods under the umbrella term Close-to-Nature management, which aims to incorporate natural successional patterns and disturbances, is considered preferable to traditional forest management methods in terms of both recreational and ecological values (Wimberly et al. LÄS MER

  4. 3. Planning future forests for energy, environment and wildlife : Evaluation of forest management scenarios using a forest landscape model in Sweden

    Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

    Författare :Sigvard Bast; [2022]
    Nyckelord :Forest landscape model; Biomass succession simulation; Carbon stock change; Habitat indicators; Scenario analysis; Integrated sustainability assessment;

    Sammanfattning : Comparing the future state of natural capital and ecosystem services with quantitative scenarios  is essential in the decision-making process for a sustainable management of forest landscapes. In Sweden, an intensified forest management will likely be necessary to meet future demands of woody biomass as a source of bioenergy and building materials. LÄS MER

  5. 4. Lövskogsgynnande åtgärders effekt på vitryggig hackspett : En studie över hur lövskogsåtgärder påverkar födoinsekter för den vitryggiga hackspetten (Dendrocopos leucotos) i Västerbotten

    Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Ottar Huber; [2020]
    Nyckelord :white-backed woodpecker; saproxylic insects; forest restoration; umbrella species;

    Sammanfattning : Due to heavily managed forests in Sweden, there has been a rapid decline of deadwood and deciduous-rich areas since the 1950s. As a result of this, 2000 forest species are now red-listed of which 700 is in heavy need of deadwood. LÄS MER

  7. 5. Limiting factors in capercaillie (Tetrao urogallus) conservation

    Kandidat-uppsats, SLU/Dept. of Wildlife, Fish and Environmental Studies

    Författare :Christer Moreira Boman; Andreas Pettersson; [2019]
    Nyckelord :reintroduction; conservation; capercaillie; wildlife management; population viability analysis;

    Sammanfattning : With current extinction rates comparable with the rates of previous mass extinctions and humanities necessity of biodiversity, conservation of habitat and species should be regarded as paramount whenever planning land use. In this paper we have focused on the Western capercaillie (Tetrao urogallus) an umbrella species in Eurasian boreal and temperate forests. LÄS MER