Sökning: "early-Holocene"

Visar resultat 1 - 5 av 22 uppsatser innehållade ordet early-Holocene.

  1. 1. Feasibility of reintroduction of European Bison (Bison bonasus) to Sweden with focus on traffic accidents

    Master-uppsats, SLU/Southern Swedish Forest Research Centre

    Författare :Michael Topszewski; [2023]
    Nyckelord :wildlife-vehicle collision; risk prediction; reintroduction feasibility; european bison; Bison bonasus; moose; Alces alces; Human-wildlife conflict;

    Sammanfattning : The historical occurrence of European bison (Bison bonasus) in Sweden during the early Holocene emphasizes the ecological significance for a potential reintroduction. The European bison, the largest herbivore on the European continent, is a keystone species with a significant influence on ecosystem dynamics. LÄS MER

  3. 2. Granens ankomst och etablering i Skandinavien under postglacial tid

    Kandidat-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Pontus Funck; [2022]
    Nyckelord :gran; picea abies; makrofossil; megafossil; pollenanalys; skogshistoria; Earth and Environmental Sciences;

    Sammanfattning : Att förstå hur vegetation reagerar på klimatförändringar är viktigt av flera skäl, inte minst eko-nomiska när det gäller träd som är betydelsefulla för skogsbruket såsom gran (Picea abies) och tall (Pinus Sylvest-ris). För att förstå detta behövs kunskap om de mekanismer som ligger bakom trädarternas respons på förändringar i deras levnadsmiljö, vilket man kan få från paleoekologisk forskning baserad på pollenanalyser, aDNA-analyser och makrofossilanalyser. LÄS MER

  4. 3. Holocene lake-level changes in the Siljan Lake District – Towards validation of von Post’s drainage scenario

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Savvas Paradeisis-Stathis; [2020]
    Nyckelord :Lake Siljan; Dalarna; basin isolation; catastrophic drainage; early Holocene; lake sediments; XRF scanning; C N ratio; magnetic susceptibility; pollen; Ancylus Lake; Earth and Environmental Sciences;

    Sammanfattning : The Dalarna province in south-central Sweden shows a great variety of geological evidence from the Late Quaternary. A peculiar deglaciation pattern, along with unique hydrological conditions, has left a lot of space for speculations over the palaeoenvironmental conditions during the early Holocene. LÄS MER

  5. 4. Aeolian and Pedogenic Processes of Loess in Southern England

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Ragna Orbe; [2019]
    Nyckelord :loess; Pegwell Bay; grain size distribution; magnetic susceptibility; past-climate reconstruction; lössavlagringar; Pegwell Bay; partikelstorleks distribution; magnetisk mottaglighet; historisk klimatrekonstruktion;

    Sammanfattning : Loess is an aeolian sediment that can be utilized as a detailed proxy of past climate, since it is one of few sediments that is deposited directly from the atmosphere on land. Investigation of loess deposits can give understanding of past regional and local wind circulation patterns and velocities, atmospheric dustiness, as well as paleo-precipitation and weathering conditions. LÄS MER

  7. 5. Evidence for birch forests and a highly productive environment near the margin of the Fennoscandian ice sheet in the Värriötunturit area, northeastern Finland

    Master-uppsats, Stockholms universitet/Institutionen för naturgeografi

    Författare :Fredrik Bogren; [2019]
    Nyckelord :Early Holocene; productive ice-marginal environment; subarctic birch forests; plant macrofossils; pollen; palaeoenvironmental reconstructions; palaeoclimate reconstructions; Värriötunturit; Kuutsjärvi; northeastern Finland; northern Fennoscandia;

    Sammanfattning : High-resolution records of early Holocene deposits are rare, and as a consequence reconstruction of terrestrial environments very soon after the deglaciation has often been difficult. In this study the palaeoenvironmental conditions of early Holocene (c. 10600-7500 cal. LÄS MER