Sökning: "moth"

Visar resultat 31 - 35 av 52 uppsatser innehållade ordet moth.

  1. 31. The survival of moth larvae feeding on different plant species in northern Fennoscandia

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Ulrika Belsing; [2015]
    Nyckelord :winter moth; ecosystem analysis; physical geography; autumn moth; northern Fennoscandia; outbreaks and sub-arctic environment; Earth and Environmental Sciences;

    Sammanfattning : Northern Fennoscandia belongs to the sub-arctic environment and its forests are mostly composed of mountain birch trees (Betula pubescens ssp. czerepanovii). LÄS MER

  3. 32. Could Lithospermum officinale be bird dispersed? : A greenhouse experiment

    Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildning

    Författare :Adam Åberg; [2015]
    Nyckelord :Lithospermum officinale; scarification; dispersal; germination; dormancy;

    Sammanfattning : Common gromwell (Lithospermum officinale) acts as a host plant for the monophagous moth Ethmia dodecea  whose larvae are completely dependent on the leaves. As conservation authorities now want to reinstate the regionally extinct moth to Mälardalen, a stable population of its host plant is a requirement. LÄS MER

  4. 33. Odour-mediated behaviour in codling moth, Cydia pomonella : do fermentation odours affect the attraction and oviposition behaviour in codling moth?

    Magister-uppsats, SLU/Dept. of Plant Protection Biology

    Författare :Lillemor Torstensdotter; [2015]
    Nyckelord :Cydia pomonella; codling moth; fermentation; apples;

    Sammanfattning : The codling moth, Cydia pomonella is a common pest in apple orchards and can be found worldwide. Feeding by codling moth larvae can cause a substantial decrease in apple yield. Control methods comprise for example the use of pesticides, viruses and pheromones. LÄS MER

  5. 34. Effect of diet and density on larval immune response and larval and adult host-preference in Spodoptera littoralis

    Master-uppsats, SLU/Dept. of Plant Protection Biology

    Författare :Sophie Chattington; [2015]
    Nyckelord :artificial encapsulation; Egyptian cotton leafworm; immune response; innate preference hierarchy; larval density; larval development; larval memory; oviposition choice; phenoloxidase; Spodoptera littoralis; Y-tube;

    Sammanfattning : Polyphagy presents difficulties to an insect, especially in terms of host choice. The adult insect must choose from a large number of possible host plant species, something which is considered to require extensive neural capacity to process. LÄS MER

  7. 35. Föräldraskap - på samma villkor?

    Kandidat-uppsats, Lunds universitet/Juridiska institutionen; Lunds universitet/Juridiska fakulteten

    Författare :Jenny Edstrand; [2014]
    Nyckelord :Familjerätt; Civilrätt; Faderskapspresumtion; Föräldraskapspresumtion; Närståendeadoption; Medmoderskap; Law and Political Science;

    Sammanfattning : Svenska familjerätten strävar efter barnets bästa och att barnet ska ha två rättsliga föräldrar. När ett kvinnligt gift par vill få barn, kan de vända sig till svensk sjukvård för att genomgå assisterad befrukt-ning. LÄS MER