Sökning: "winter moth"

Hittade 5 uppsatser innehållade orden winter moth.

  1. 1. Trends in mountain birch seed abundance and its relation to temperature and moth abundance: a ten-year study from Swedish Lapland

    Kandidat-uppsats, Göteborgs universitet / Instiutionen för biologi och miljövetenskap

    Författare :Frida Gustafsson; [2023-02-09]
    Nyckelord :Betula pubescens; climate change; seed production; Epirrita autumnata; Operophtera brumata; subarctic ecology; folivory; larval abundance;

    Sammanfattning : Boreal forest is the world’s largest terrestrial biome. Being one of the most ubiquitous and coldtolerant tree species in Sweden, the mountain birch forms a unique deciduous treeline and marks the forest-tundra ecotone. LÄS MER

  3. 2. Bee wax moth in Embu county, Kenya, the intruder in the hives : a study of Galleria mellonella and Achroia grisella

    Kandidat-uppsats, SLU/Dept. of Ecology

    Författare :Sanna Bergqvist; [2019]
    Nyckelord :bee wax moth; African bees; prevention; control;

    Sammanfattning : The bee wax moth is a problematic pest that has been a problem to Kenyan bee farmers for some time now. This study has tried to answer if the observed factors affected the infestation rate of the pest. LÄS MER

  4. 3. Standardization of the Compass Neuropils of the Australian Bogong Moth, Agrotis infusa

    Kandidat-uppsats, Lunds universitet/Examensarbeten i molekylärbiologi

    Författare :Liv de Vries; [2016]
    Nyckelord :Biology and Life Sciences;

    Sammanfattning : Every summer the Australian Bogong moth migrates from southern Queensland to the Australian Alps in southern New South Wales. Other migrants such as the monarch butterfly use a time-compensated sun compass. However, the Bogong is nocturnal and only has access to skylight cues such as the moon, polarized light or the Milky Way. LÄS MER

  5. 4. 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

  7. 5. Ground-living predators of the apple fruit moth Argyresthia conjugella (Zell.)

    L3-uppsats, SLU/Dept. of Entomology

    Författare :Sara Furenhed; [2006]
    Nyckelord :ground-living predators; apple fruit moth; Argyresthia conjugella; mortality during hibernation; mesh exclusion cage; GLIMMIX; feeding test;

    Sammanfattning : Field studies were conducted in two orchards to investigate what type of ground- living predators that prey on the apple fruit moth during hibernation. Two tasks were addressed: 1) hibernation loss of the apple fruit moth was quantified, and 2) effect of the different predator groups were identified. LÄS MER