Sökning: "Semi-natural grasslands"

Visar resultat 31 - 35 av 63 uppsatser innehållade orden Semi-natural grasslands.

  1. 31. Bumblebee abundance decreases with growing amount of arable land at a landscape level

    Kandidat-uppsats, Linköpings universitet/Biologi

    Författare :Gabriella Fjellander; [2017]
    Nyckelord :Bombus; bumblebees; spatial scale; landscape; arable land; abundance; Sweden;

    Sammanfattning : Society depends on bumblebees for the ecosystem service in the pollination of crops. Bumblebee declines have been documented, mostly due to intensification of agriculture and loss of species-rich semi-natural grasslands, an important bumblebee habitat. LÄS MER

  3. 32. Linear movement and habitat boundary response by butterflies in power line corridors

    Master-uppsats, SLU/Dept. of Ecology

    Författare :Axel Linder; [2017]
    Nyckelord :power line corridors; PLC; edge response; linear movement; butterflies; conservation; semi-natural grassland;

    Sammanfattning : Sweden’s semi-natural grasslands and pastures have decreased radically during the 1900s, leading to a loss of butterfly populations and species associated with these habitats. Butterfly conservation efforts therefore should be concentrated towards finding suitable habitats that can either replace or support these lost habitats. LÄS MER

  4. 33. Local plant species diversity in coastal grasslands in the Stockholm archipelago : The effect of isostatic land-uplift, different management and future sea level rise

    Master-uppsats, Stockholms universitet/Institutionen för naturgeografi

    Författare :Cecilia Lindén; [2017]
    Nyckelord :Coastal grasslands; Plant species diversity; Stockholm archipelago; Isostatic land-uplift; Sea level rise; Landscape ecology; Traditional management; Grazing; Traditional mowing; Semi-natural grasslands;

    Sammanfattning : Semi-natural grasslands with traditional management are known to be very species-rich, with many plant species strongly associated with the habitat. The last century’s decline of semi-natural grasslands, as a result of land use change and abandonment, has made the remaining semi-natural grassland a high concern for conservation. LÄS MER

  5. 34. Semi-natural pastures in Scania: grazing and the support system

    Kandidat-uppsats, Lunds universitet/Examensarbeten i biologi

    Författare :Dan Gerell; [2016]
    Nyckelord :Biology and Life Sciences;

    Sammanfattning : Semi-natural pastures are one of the most species-rich habitats found in Sweden and many endangered species are connected to them. Strongly declining in area, semi-natural pastures in Sweden can be eligible for financial support within the EU agri-environmental scheme. LÄS MER

  7. 35. Effects of local habitat characteristics and landscape composition on the occurrence of burnet moths.

    Master-uppsats, Linköpings universitet/Biologi

    Författare :Yana Tarasova; [2016]
    Nyckelord :Zygaena; burnet moths; habitat quality; landscape; conservation; semi-natural grasslands; forests; matrix;

    Sammanfattning : A decline in biodiversity in agricultural landscapes has been reported for decades. One of the most important habitats for biodiversity in agricultural landscapes is semi-natural grasslands. To preserve species-rich semi-natural grasslands, research need to focus both on local habitat quality and on landscape composition at various scales. LÄS MER