Sökning: "herbivore damage"

Visar resultat 1 - 5 av 10 uppsatser innehållade orden herbivore damage.

  1. 1. Skadegörare på örtartade perenner : beskrivningar på vad som kan besöka vår trädgård samt förslag på åtgärder

    Kandidat-uppsats, SLU/Dept. of Biosystems and Technology (from 130101)

    Författare :Sandra Steffensen; [2021]
    Nyckelord :insekter; sekundära metaboliter; växtförsvar; bekämpning; herbivor; minerare; värdväxt; insects; secondary metabolites; plant defense; control measures; herbivore; leaf mining;

    Sammanfattning : Arbetet är en litteraturstudie som beskriver tio växtskadegörare som angriper de örtartade perennerna i vår trädgård. I arbetet har jag valt att beskriva skadegörare vi kan hitta på växter ur astersläktet, aklejsläktet och blåsippsläktet. LÄS MER

  3. 2. Alternativa metoder till hägn för att minimera viltskador på hybridaspföryngringar

    Kandidat-uppsats, Linnéuniversitetet/Institutionen för skog och träteknik (SOT)

    Författare :Annette Eilert; [2017]
    Nyckelord :Hybrid aspen; herbivore damage; browsing; seedling protection; anthropogenic disturbance; fence;

    Sammanfattning : The purpose of the study was to find alternatives to fences by comparing the frequency of damages on different configurations of chemical treated, mechanically protected and untreated hybrid aspen seedlings, planted on agricultural land. The study also explored whether anthropogenic disturbance (proximity to roads and buildings) had any effect on the frequency of seedlings damages. LÄS MER

  4. 3. The effect of domestication on insect resistance in cotton : bioassays with the insect herbivores Spodoptera littoralis and Agriotes spp.

    Master-uppsats, SLU/Dept. of Plant Breeding (from 130101)

    Författare :Joakim Sjöstrand; [2014]
    Nyckelord :Spodoptera littoralis; Agriotes lineatus; insect resistance; cotton; gossypium;

    Sammanfattning : A plant's defensive ability against herbivore attack can be influenced by many different factors, one of them being domestication. During human selection to improve the yield of plants, the resistance against herbivore attack can have been lowered, due to a trade-off for use of resources between these traits in the plants. LÄS MER

  5. 4. Effects of leaf beetle herbivory on pollination success and fruit development in woodland strawberry Fragaria vesca

    Master-uppsats, SLU/Dept. of Ecology

    Författare :Lisa Malm; [2013]
    Nyckelord :herbivory; pollination success; pollinator reference; fruit development; fruit yield; leaf beetles; Galerucella tenella; Galerucella sagittariae; Fragaria vesca;

    Sammanfattning : Cultivating well-developed and marketable garden strawberries (Fragria x ananassa) and woodland strawberries (Fragaria vesca) depends on successful pollination by insects. Organic garden strawberry plantations harbour higher pollinator densities and have been shown to produce bigger and better developed fruits than conventional farms. LÄS MER

  7. 5. Neighbourhood effects as a plant defence against ungulate herbivory

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

    Författare :Bregje Koster; [2012]
    Nyckelord :winter browsing; plant-animal interactions; associational effects; scale; large herbivores; palatability; Sweden;

    Sammanfattning : For large herbivores patch selection is highly influenced by the presence of plant species and biomass that allows them the highest protein and energy intake. From the plant point of view browsing is seen as damage and loss of fitness and plants evolved different strategies to avoid or tolerate herbivory. LÄS MER