Sökning: "Deformed wing virus"

Hittade 4 uppsatser innehållade orden Deformed wing virus.

  1. 1. The relationship between the prevalence of ten known pathogens in wild swedish bees and the presence of a nearby apiary.

    Kandidat-uppsats, Uppsala universitet/Institutionen för medicinsk cellbiologi

    Författare :Frida Sundblad; [2021]
    Nyckelord :Bombus terrestris; Apis mellifera; Deformed wing virus; pathogen spillover; commercial bumblebee production;

    Sammanfattning : Pollination by insects is of great importance for the global food production. There is a specific need for pollination by bees in greenhouses and tunnel cultivations to increase the quantity, quality and market value of the crops. LÄS MER

  3. 2. The impact of managed honeybees and commercial reared bumblebees on pathogens in wild bees

    Master-uppsats, SLU/Dept. of Ecology

    Författare :Sofie Tinggren; [2020]
    Nyckelord :honey bee; bumblebee; diseases; commercial bees; bee intensity;

    Sammanfattning : Bees are important beneficial insects due to their ability to pollinate our crops and vegetables, as well as being critically important for maintaining wild floral biodiversity. Bees are important from both an economic perspective and an environmental perspective, which highlights the importance of having healthy and sustainable bee populations. LÄS MER

  4. 3. Screening Swedish bees for pahogens shines new light on the parasite Gregarine

    Uppsats för yrkesexamina på grundnivå, Uppsala universitet/Institutionen för kvinnors och barns hälsa

    Författare :Nellie Svedin; [2017]
    Nyckelord :;

    Sammanfattning : are under pressure from habitat loss, environmental stress and pathogens including viruses. Research have shown viral infections to be one of the major causes of colony losses. The purpose of this study was to screen three viruses; Deformed wing virus, Slow bee paralysis virus and Acute bee paralysis virus but also three parasites; Nosema spp. LÄS MER

  5. 4. Tambins inverkan på naturligt förekommande pollinatörer

    Kandidat-uppsats, Högskolan i Gävle/Avdelningen för elektronik, matematik och naturvetenskap

    Författare :Camilla Lindqvist; [2014]
    Nyckelord :honey bee; competition; native bees; bumble bee; pollination ecology; bee mortality; Colony Collapse Disorder; tambin; honungsbin; konkurrens; bin; bi; humla; vildbi; vilda bin; pollinationsekologi; pollinering; bidöd;

    Sammanfattning : Det här arbetet handlar om tambins inverkan på naturligt förekommande pollinatörer. Min frågeställning berör: tillgången på näring, hälsotillståndet och populationsnivån hos naturligt förekommande pollinatörer i förhållande till tambins närvaro. LÄS MER