Sökning: "Plant species richness"

Visar resultat 6 - 10 av 83 uppsatser innehållade orden Plant species richness.

  1. 6. Pollinator communities on a landscape complexity gradient in southern Sweden

    Magister-uppsats, SLU/Dept. of Ecology

    Författare :Hanna Olsson; [2023]
    Nyckelord :pollinator; bumblebee; rough pasture; semi-natural pasture; unimproved grazing; landscape complexity;

    Sammanfattning : Investigating how pollinator populations are affected by land use changes is crucial for predicting their persistence in the landscape and thereby the persistence of the significant service they provide to crop production. Pollinator populations are subjected to multiple threats, particularly overall intensification of cropping systems and landscape simplification. LÄS MER

  3. 7. Plant community responses to 15 years of nitrogen and phosphorus fertilization along an elevational gradient in the subarctic tundra

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

    Författare :Gaya Ten Kate; [2023]
    Nyckelord :arctic tundra; climate change; fertilization; nitrogen; phosphorus; plant community composition; species richness; Simpson’s diversity; Shannon-Wiener diversity; elevational gradient;

    Sammanfattning : Climate change in the Arctic has profound effects on tundra vegetation, directly through increasing temperatures and indirectly through changes in plant community composition and nutrient cycling. Fertilization experiments are widely used to study the effects of increased nutrient availability on arctic tundra vegetation. LÄS MER

  4. 8. Competition between managed honeybees and wild bumblebees - Quantifying dietary overlap in semi-natural grasslands

    Kandidat-uppsats, Lunds universitet/Centrum för miljö- och klimatvetenskap (CEC)

    Författare :Emma Rosberg; [2023]
    Nyckelord :Earth and Environmental Sciences;

    Sammanfattning : The decline of bees, such as bumblebees, over the last decades raises concerns as they are key pollinators in both agricultural and natural ecosystems. One proposed cause for the decline of wild bees is competition for food resources with managed honeybees. LÄS MER

  5. 9. The diversity of moths in a nature reserve in the Northern Cape, South Africa : Variation over time, depending on abiotic factors and differences between areas with different grazing types

    Kandidat-uppsats, Linnéuniversitetet/Institutionen för biologi och miljö (BOM)

    Författare :Nellie Jarl; [2023]
    Nyckelord :Moth diversity; grazing effects; land use; biodiversity;

    Sammanfattning : Land use changes globally have significant impacts on flora and fauna. In South Africa, extensive land is used for grazing by both domestic livestock and farmed native grazers. However, the effects of different grazing types on vegetation and fauna remain poorly understood. LÄS MER

  7. 10. Dynamisk vegetationsbyggnad i en folkparksmiljö : ett gestaltningsförslag för Folkets park i Lomma

    Master-uppsats, SLU/Dept. of Landscape Architecture, Planning and Management (from 130101)

    Författare :Annie Kouns; [2023]
    Nyckelord :dynamisk vegetationsbyggnad; dynamisk växtgestaltning; artrik; strukturrik; diversitet; kulturhistorisk; historiska arvet; Folkets park;

    Sammanfattning : Folkets hus och parker är en del av svensk parkhistoria. Parkerna var tillägnade arbetarklassen under 1900-talet och de skapade möjligheter för sociala möten, kultur och nöjen. Det här arbetet fokuserar på Lomma Folkets park, som ursprungligen var en levande park med växtlighet och mänsklig aktivitet. LÄS MER