Sökning: "bark-stripping"

Visar resultat 1 - 5 av 7 uppsatser innehållade ordet bark-stripping.

  1. 1. Influencing factors on red deer bark stripping on spruce : plant diversity, crop intake and temperature

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

    Författare :Anna Widén; [2018]
    Nyckelord :Cervus elaphus; bark stripping; Norway spruce; Picea abies; forest damage; oil seed rape; Brassica napus; deer management; ungulates;

    Sammanfattning : Red deer (Cervus elaphus) is increasing in distribution and population density in several regions of Europe and may cause severe damage in commercial forestry and agriculture. Bark stripping is the main problem in forests, especially on Norway spruce (Picea abies). LÄS MER

  3. 2. Effects of supplementary feeding on bark stripping by red deer (Cervus elaphus)

    Kandidat-uppsats, Lunds universitet/Examensarbeten i biologi

    Författare :Anna Widén; [2017]
    Nyckelord :Biology and Life Sciences;

    Sammanfattning : Barkgnag av kronvilt, effekt av utfodring? Kronvilt (Cervus elaphus) kan orsaka stora skador på Sveriges skogar genom barkgnagning, något som leder till stora ekonomiska förluster då träden drabbas av svampinfektioner, reducerad tillväxt, deformationer m.m. LÄS MER

  4. 3. Tall trees survival in relation to bottom-up and top-down drivers in Hluhluwe-iMfolozi Park, South Africa

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

    Författare :Petter Madsen; [2017]
    Nyckelord :elephant; drivers; savanna; South Africa; tree survival;

    Sammanfattning : Tall trees are in decline throughout many national parks in South Africa. Many studies have found that trees within a certain size are preferred by elephants which damage trees by either bark stripping, breaking tree branches and/or stems or by knocking over trees (toppling). LÄS MER

  5. 4. Elephant utilisation of and impact on a locally threatened habitat, coastal scarp forest, in South Africa

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

    Författare :Matilda Apelqvist; [2016]
    Nyckelord :elephant impact; forest; scarp forest; herbivores; woody plants;

    Sammanfattning : Elephants are known to have a big influence on the environment. Their browsing routine includes the breaking of stems and branches, toppling of trees, and bark stripping. This, in combination with other factors, can have negative effects on the vegetation. LÄS MER

  7. 5. Factors affecting bark-stripping by red deer (Cervus elaphus) : the importance of landscape structure and forage availability

    Master-uppsats, SLU/Dept. of Ecology

    Författare :Josefina Zidar; [2011]
    Nyckelord :bark-stripping; Cervus elaphus; red deer; forestry; Picea abies; spruce; wildlife damage; ungulates ;

    Sammanfattning : Bark-stripping by red deer (Cervus elaphus) cause extensive damage to economically valuable spruce trees (Picea abies) in Swedish forests. The underlying causes for bark-stripping are not fully understood, and the frequency and severity of damage unpredictably differ between regions. In this study, I investigated if landscape structure (e.g. LÄS MER