Sökning: "beaver dam"

Hittade 5 uppsatser innehållade orden beaver dam.

  1. 1. Hydraulic Modelling of Eurasian Beaver Structural Modifications: Implications for Evaluating their Contributions to Natural Flood Management in Scotland

    Master-uppsats, Lunds universitet/Avdelningen för Riskhantering och Samhällssäkerhet

    Författare :Maja Christina Pitcairn; [2023]
    Nyckelord :Beaver reintroduction; Scotland; Flood risk; Natural flood management; Hydraulic modelling.; Technology and Engineering;

    Sammanfattning : The concurrent climate and biodiversity crises in Scotland necessitate the exploration of ecosystem-based adaptation to simultaneously address increased flood risk and the loss of native species. This research investigated the contributions of Eurasian beaver reintroductions to natural flood management in Scotland. LÄS MER

  3. 2. Beavers and environmental flow : the contribution of beaver dams to flood and drought prevention

    Master-uppsats, SLU/Dept. of Wildlife, Fish and Environmental Studies

    Författare :Wali Uz Zaman; [2019]
    Nyckelord :beaver dam; beaver pond; environmental flow; flood; drought; GIS;

    Sammanfattning : Before they were driven to near extinction, beavers populated the smaller rivers in Europe, Asia and North America. They are ecosystem engineers, since their dam building activities have a cascading effect on biogeochemistry, hydrology, ecosystem structure as well as biodiversity of the affected and surrounding area. LÄS MER

  4. 3. Local and landscape effects on the diversity of plant communities in Swedish beaver ponds

    Master-uppsats, SLU/Dept. of Aquatic Sciences and Assessment

    Författare :Joel Lönnqvist; [2014]
    Nyckelord :beaver pond; Castor fiber; aquatic plants; hydrophytes; helophytes; macrophytes; landscape; nitrogen; plant dispersal; catchment;

    Sammanfattning : The European beaver Castor fiber is considered an ecosystem engineer and a key species because of its dam building behavior. Little is known about the factors affecting plant diversity in beaver impounded streams. This study aimed to investigate if local and landscape variables affect plant diversity of beaver ponds. LÄS MER

  5. 4. Bäverhyddors påverkan på vattenlevande evertebrater

    Kandidat-uppsats, Institutionen för vård och natur

    Författare :Evelina Leickt; [2013]
    Nyckelord :;

    Sammanfattning : Genom sin aktivitet med dammbygge och trädfällning skapar bävern produktiva våtmarker med hög diversitet. Man har funnit att vid bäverns dammkonstruktion var artantalet närmare dubbelt så stort jämfört med i dammen och i det rinnande vattnet i bäcken. LÄS MER

  7. 5. Hur påverkar bävern skogens värden?

    Kandidat-uppsats, SLU/School for Forest Management

    Författare :Andreas Sund; [2009]
    Nyckelord :Bäver; Våtmark; Viltskador;

    Sammanfattning : The activities of beavers in forested landscapes affect both ecological and economical values. The creation of the dynamic wetland mosaic associated to beaver activities can even improve the quality of water and have been documented as an important landscape engineer affecting the environment for many species. LÄS MER