Sökning: "Dryas octopetala"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden Dryas octopetala.

  1. 1. The bzzzt of frirends. Interspecific competition in Arctic plants for pollination services.

    Master-uppsats, Göteborgs universitet / Institutionen för biologi och miljövetenskap

    Författare :Malin Olsson; [2023-06-27]
    Nyckelord :the Arctic; pollinator networks; competition; autonomous selfing; Arktis; pollinationsnätverk; konkurrens; autonom självpollinering;

    Sammanfattning : The Arctic has a harsh environment that is challenging for the flora and fauna that inhabits the region. The ruling abiotic factors of the region results is a low species richness that creates a potential challenge for the region’s plant species. LÄS MER

  3. 2. Födovalspreferenser hos en arktisk specialist : vad föredrar Gynaephora groenlandica (Lepidoptera:Erebidae) att äta på Wrangelön?

    Kandidat-uppsats, SLU/Dept. of Forest Ecology and Management

    Författare :Beatrice Elfvenfjärd; Erika Åmansson; [2022]
    Nyckelord :Gynaephora groenlandica; arktisk ullbjörnslarv; födopreferenser; arktisk tundra; arktisk specialist; växtegenskaper;

    Sammanfattning : The Arctic tundra has many unexplored areas. Due to the harsh climate and the difficult accessibility, there is a lack of knowledge about the different species that live under these circumstances. Herbivores in this environment have a large effect on the plant community, one of these is the moth butterfly larva Gynaephora groenlandica. LÄS MER

  4. 3. Reforestation in the far north : comparing effects of the native tree species Betula pubescens and the non-native Pinus contorta in Iceland

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

    Författare :Elin Fries; [2017]
    Nyckelord :Iceland; non-native tree species; understory vegetation; P. contorta; B. pubescens;

    Sammanfattning : The use of non-native tree species in forestry is both praised and questioned. Foresters have often promoted their use, mainly because of higher growth rates, resilience to pests and diseases and improved survival under harsh conditions. LÄS MER

  5. 4. The spatial growth pattern and directional properties of Dryas octopetala on Spitsbergen, Svalbard

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

    Författare :Sophie Rudbäck; [2016]
    Nyckelord :wind direction; Physical Geography and Ecosystem analysis; vegetation pattern; Spitsbergen; ArcGIS; Dryas octopetala; Earth and Environmental Sciences;

    Sammanfattning : Exposed, well-drained and nutrient poor areas on Spitsbergen are mainly covered by a plant alliance typical for Svalbard, the Caricion nardinae. Caricion nardinae is a circum-polar alliance, which is dominated by the creeping, ever-green dwarf-shrub [i]Dryas octopetala[/i]. LÄS MER

  7. 5. Vegetation responses to Late Glacial climate shifts as reflected in a high resolution pollen record from Blekinge, south-eastern Sweden, compared with responses of other climate proxies

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Artemis Karlatou-Charalampopoulou; [2016]
    Nyckelord :lake sediments; Blekinge; SE Sweden; Pleistocene-Holocene boundary; loss on ignition; pollen analysis; high time-resolution; time lags; Earth and Environmental Sciences;

    Sammanfattning : Denna studie fokuserar på en nästan 1700 år lång sjösedimentsekvens från Hässeldala Port i centrala Blekinge, sydöstra Sverige. Den omfattar övergångsperioden mellan pleistocen och holocen, eller mer precist eventen GI-1a och GS-1 samt början av den holocena epoken i iskärnorna, vilket motsvarar de sydsvenska pollenzonerna sen allerød till tidig preboreal. LÄS MER