Essays about: "winter ecology"

Showing result 1 - 5 of 93 essays containing the words winter ecology.

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

    University essay from Göteborgs universitet / Instiutionen för biologi och miljövetenskap

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

    Abstract : 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. READ MORE

  3. 2. Behavioral response of reindeer (Rangifer tarandus) to acoustic stimuli

    University essay from SLU/Dept. of Ecology

    Author : Johanna Börs; [2023]
    Keywords : reindeer; Rangifer tarandus; acoustic stimuli; behavioral response; flight response; induced fear;

    Abstract : Scare systems based on acoustic stimuli have been tested on several ungulates in recent years. The aim has been to investigate whether the method can be useful in situations where the animals must quickly be displaced from a specific site, for example, to prevent wildlife accidents. READ MORE

  4. 3. Kan samodling av höstraps och utvintrande baljväxter minska angreppen av rapsjordloppa?

    University essay from SLU/Dept. of Ecology

    Author : Elin Tegelid; [2023]
    Keywords : samodling; rapsjordloppa; utvintrande baljväxter; oljeväxter; raps;

    Abstract : Höstraps (Brassica napus) är en av världens och Sveriges viktigaste grödor. Det är en viktig avbrottsgröda i växtföljder dominerade av spannmål. Tyvärr har den omfattande odlingen gjort att rapsen drabbats av patogener och skadegörare, vilket försvårar ekologisk odling. READ MORE

  5. 4. Comparison of drone ecology and behavior between Apis mellifera mellifera and the hybrid Buckfast in southwestern Sweden

    University essay from Högskolan i Skövde/Institutionen för biovetenskap

    Author : Finja Schaumann; [2023]
    Keywords : ;

    Abstract : Most research on the biology of the western honey bee (Apis mellifera) focuses on the worker bees, but knowledge about drones is lacking despite their important role in mating with a virgin queen. Available information about their ecology and behavior are mainly based on direct observations in need of intensive experience and knowledge about honey bees. READ MORE

  6. 5. Companion crops in winter oilseed rape : effects on nitrogen concentration, biomass, and prevalence of weeds at the end of autumn growth

    University essay from SLU/Dept. of Crop Production Ecology

    Author : Stina Johansson; [2023]
    Keywords : biomass; companion crops; intercropping; legumes; nitrogen concentration; organic cultivation; weeds; winter oilseed rape;

    Abstract : Intercropping can be used as a management system to promote higher yield as well as less weeds,diseases, and insect damage. Legumes are a commonly used companion crop (CC) in intercropping due to the benefit of nitrogen (N) fixation. READ MORE