Sökning: "nectar"

Visar resultat 1 - 5 av 55 uppsatser innehållade ordet nectar.

  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. INDIVIDUAL TRAIT MATCHING OF BUMBLEBEES (BOMBUS) AND FLOWERS ALONG AN ENVIRONMENTAL GRADIENT

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

    Författare :Johan Per Michael Svedin; [2022]
    Nyckelord :Arctic climate change; Bombus; Flower morphology; Plant-pollinator trait-matching;

    Sammanfattning : Insect pollinators serve a critical role in maintaining plant biodiversity and are especially susceptible to changes within their environment. To study the possible effects of seasonal variation in temperature, as well as climatic temperature increase on the plant-pollinator community, the relationship between bumblebee and flowering plant traits along an elevational gradient, representing warming-induced changes in plant community, were examined. LÄS MER

  4. 3. Mapping edge vegetation in connection to beech forest to locate potential habitats for red-listed beetles in Scania, Sweden

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

    Författare :Lovisa Rosenquist Ohlsson; [2022]
    Nyckelord :forest; temperate broadleaved forest; beech; biodiversity; edge vegetation; southern Sweden; Scania; beetles; Natura 2000; Fagus sylvatica; Stictoleptura scutellata; Ischnomera sanguinicollis; Earth and Environmental Sciences;

    Sammanfattning : The number of species classified as red-listed has increased by 11% between 2015 and 2020, with beetles and butterflies being especially affected. Among these are the vulnerable longhorned beetle (Stictoleptura scutellata) and the endangered false blister beetle (Ischnomera sanguinicollis). LÄS MER

  5. 4. Naturban : naturinspirerad gestaltning av en park längs Fyrisån i Uppsala

    Uppsats för yrkesexamina på avancerad nivå, SLU/Dept. of Urban and Rural Development

    Författare :Sara Lovisin; Josefin Vidén; [2022]
    Nyckelord :naturbaserade lösningar; mångfunktionell yta; resiliens; urbanekologi;

    Sammanfattning : Städer ligger ofta i områden med en naturligt hög biologisk mångfald. De globala klimatförändringarna innebär en ökad förekomst av extremväder vilket tillsammans med storskaliga monokulturella landskap utgör ett hot mot den biologiska mångfalden. LÄS MER

  7. 5. Individual trait matching of bumblebees (Bombus) and flowers along an environmental gradient

    Master-uppsats,

    Författare :Johan Per Michael Svedin; [2022]
    Nyckelord :Arctic climate change; Bombus; Flower morphology; Plant-pollinator trait-matching;

    Sammanfattning : Insect pollinators serve a critical role in maintaining plant biodiversity and are especially susceptible to changes within their environment. To study the possible effects of seasonal variation in temperature, as well as climatic temperature increase on the plant-pollinator community, the relationship between bumblebee and flowering plant traits along an elevational gradient, representing warming-induced changes in plant community, were examined. LÄS MER