Sökning: "Nectar production"

Visar resultat 1 - 5 av 13 uppsatser innehållade orden Nectar production.

  1. 1. System ecology of legumes mixes in ley production : impact on pollinating insects and further implications for production in northern Sweden

    Master-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Philippe Simon; [2023]
    Nyckelord :Ley production; Nitrogen fixation; Pollination ecology;

    Sammanfattning : The population and diversity of pollinating insects in Europe are declining, partly due to lossof habitat. In agricultural landscapes, farming practices with more intensified land use haveincreased. In Swedish agricultural habitats, most ley production is dominated by grass and red clover (Trifolium pratense). LÄS MER

  3. 2. Reptilförekomster och kopplingar till miljöfaktorer på Billingen : Inventering av reptilfauna med artificial cover objects på lokal nivå i Västsverige

    Kandidat-uppsats, Högskolan i Skövde/Institutionen för biovetenskap

    Författare :Maja Carlquist Segell; [2021]
    Nyckelord :Reptiles; Environmental factors; Artificial Cover Objects; ACO; Occurrence; Survey success; Conservation; Sweden; Billingen; Common lizard; Viviparous lizard; Slow worm; Grass snake; Common adder; Reptiler; Miljöfaktorer; Artificial Cover Objects; ACO; Förekomst; Inventeringsframgång; Naturvård; Sverige; Billingen; Skogsödla; Kopparödla; Snok; Huggorm;

    Sammanfattning : Förlust av biologisk mångfald är den planetära gräns som överskrids mest, och medför bland de största hoten mot biosfärens integritet. Reptiler är funktionella delar i ekosystem, men habitatförlust, förändrad markanvändning och klimatförändringar orsakar globala populationsminskningar. LÄS MER

  4. 3. Differences in plant trait distribution in semi-natural grassland habitats of Sweden

    Master-uppsats, Stockholms universitet/Institutionen för naturgeografi

    Författare :Viivi Vepsäläinen; [2020]
    Nyckelord :Plant traits; semi-natural grassland habitats; landscape openness; landscape ecology;

    Sammanfattning : Habitat type has been suggested to be a major factor contributing to differencesin plant trait distribution of grassland habitats. Land use changes in agricultural landscapes have affected the available habitats and the dispersal ability of plants, which may effect plant trait diversity of agricultural landscapes. LÄS MER

  5. 4. Importance of bumble bee community evenness for crop pollination : a simulation analysis of Swedish red clover seed production

    Magister-uppsats, SLU/Dept. of Ecology

    Författare :Vivek Babu; [2018]
    Nyckelord :bumble bee; Bombus; community; evenness; biodiversity-ecosystem function; diversity-stability; diversity-productivity; overyielding; productivity; stability; biodiversity; selection effect; species asynchrony; portfolio effect;

    Sammanfattning : The red clover seed production systems are dependent on pollinators for increase in red clover seed yield and its stability. When compared to domesticated honey bees, the wild bumble bees are highly efficient in pollinating the red clover crop due to its relatively longer tongue length. Longer dependence on single pollinator species i.e. LÄS MER

  7. 5. Homogenization of tomato and apricot juice concentrate and a sensory analysis of its effect

    Master-uppsats, Lunds universitet/Livsmedelsteknik och nutrition (master)

    Författare :Ulrich Hermann Koppmaier; [2018]
    Nyckelord :Homogenization; Fruit juice; Fruit juice concentrate; Tomato; Apricot; sensory analysis; food engineering; livsmedelsteknik; Technology and Engineering; Agriculture and Food Sciences;

    Sammanfattning : Juice homogenization is mostly done to create smaller fiber particles, which reduces the sedimentation velocity to a lower level. So far, fruit juice concentrate is diluted to juice before it is homogenized. LÄS MER