Sökning: "Axel Rösvik"

Hittade 2 uppsatser innehållade orden Axel Rösvik.

  1. 1. Landscape and within-field factors affecting the damages of the brassica pod midge (Dasineura brassicae) in Swedish winter oilseed rape cultivation

    Master-uppsats, SLU/Department of Plant Protection Biology

    Författare :Axel Rösvik; [2019]
    Nyckelord :landscape ecology; Dasineura brassicae; Ceutorhynchus obstrictus; Brassica napus; winter oilseed rap;

    Sammanfattning : The brassica pod midge (Dasineura brassicae) has been a serious upcoming problem in Swedish oilseed cultivation during recent years. This small dipteran utilized pods damaged by its facilitator, the cabbage seed weevil (Ceutorynchus obstrictus), to be able to oviposit. The larvae of D. LÄS MER

  2. 2. Transgenerational phenotypic plasticity: can parental host plant experience affect the phenotype of the offspring? : a study in behavior and physiology in Spodoptera littoralis

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

    Författare :Axel Rösvik; [2015]
    Nyckelord :transgenerational phenotypic plasticity; Spodoptera littoralis; performance; migration; preference;

    Sammanfattning : The Darwinian theory of natural selection first popularized by Charles Darwin in the mid-19th century has been widely accepted as one of the key mechanisms of evolution. However, before Darwin other scientists such as Jean-Baptiste de Lamarck had their theories about evolution. LÄS MER