Sökning: "gråal"

Hittade 3 uppsatser innehållade ordet gråal.

  1. 1. Betesmönster hos älg (Alces alces) vintertid i fjällnära skog : En studie av födoval i relation till trädslagssammansättning och habitat

    Kandidat-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Ella Hambeson; [2023]
    Nyckelord :Food choice; Alces alces; forested mountainous terrain; winter diet; selection; Betesval; Alces alces; fjällnära skog; vinterföda; selektion;

    Sammanfattning : Browsing patterns in large herbivorous mammals are complex and decisions regarding food items occur at different levels depending on internal or external factors such as energy requirements and available food sources. A broader understanding of the behavior of animals living in habitats of economic interests for humans enables human exploitation with as little impact as possible on the animals' habitats. LÄS MER

  3. 2. AHA in northern Sweden – a case study : conservation values of deciduous trees based on saproxylic insects

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

    Författare :Marja Fors; [2015]
    Nyckelord :saproxylic; Coleoptera; Diptera; Hymenoptera; microhabitat; dead wood; biodiversity assessment; AHA-method;

    Sammanfattning : AHA is a Swedish abbreviation of "reveal threatened park and avenue trees" and is a method to assess the conservation value of individual trees, mainly in the park environments but also in natural stands. This method has previously only been practiced in southern Sweden (Sörensson 2008). LÄS MER

  4. 3. GIS-baserad habitatmodell för mindre hackspett : ett verktyg för att bevara skyddsvärda lövskogar inom Umeälvlandskapet

    L3-uppsats, SLU/Dept. of Wildlife, Fish and Environmental Studies

    Författare :Veronica Grahn; [2008]
    Nyckelord :GIS; habitatmodell; indikatorart; mindre hackspett; gråal;

    Sammanfattning : Deciduous forests are, according to the National Environmental Quality Objectives, a priority area. Deciduous forests are rich in species and the occurrence of dead wood is an important factor for biodiversity. In order to identify valuable deciduous forests for bio-diversity, conservation needs good analyses and planning tools. LÄS MER