Sökning: "paleoecology"

Visar resultat 1 - 5 av 13 avhandlingar innehållade ordet paleoecology.

  1. 1. Who ate whom? Paleoecology revealed through synchrotron microtomography of coprolites (fossil feces)

    Författare :Martin Qvarnström; Živilė Žigaitė; Grzegorz Niedźwiedzki; Per Ahlberg; Karen Chin; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; coprolites; paleoecology; synchrotron microtomography; taphonomy; Triassic; Biologi; Biology;

    Sammanfattning : Fossil droppings, known as coprolites, are being increasingly recognized as a valuable source of paleoecological information with special regard to diets, parasitism, and physiology of extinct taxa. Here, it is suggested that the excellent preservation and amount of inclusions in the coprolites (e.g. LÄS MER

  3. 2. Upper Cretaceous - Lower Tertiary deep-see benthic foraminifera from the Walvis Ridge, South Atlantic Ocean : taxonomy, paleobiogeography, and paleoecology

    Författare :Joen G. V. Widmark; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  4. 3. Fire history in the hemiboreal and southern boreal zones of southern Sweden during 11000 years : Relationships with past vegetation composition and human activities and implications for biodiversity issues

    Författare :Qiao-Yu Cui; Marie-José Gaillard; Boris Vannière; Linnéuniversitetet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fire history; land-use history; biodiversity; charcoal analysis; Landscape Reconstruction Algorithm LRA ; Holocene; Småland; Sweden; Paleoecology; Paleoekologi;

    Sammanfattning : This thesis studies fire history over the last 11 000 years (Holocene) in central Småland, southern Sweden, on the basis of palaeoecological analyses of peat sequences from three small bogs (Notteryd, Stavsåkra and Storasjö). The main objective is to gain insights into the long-term relationships between fire, climate, human-impact, other environmental factors and the history of biodiversity in the study region. LÄS MER

  5. 4. Changing Landscapes : An Environmental History of Chibuene, Southern Mozambique

    Författare :Anneli Ekblom; Paul Sinclair; Louis Scott; João Morais; Uppsala universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Archaeology; environmental history; archaeology; archaeobotany; paleoecology; vegetation history; pollen analysis; environmental management; environmental insecurity; resource utilisation; landscape; paleclimatology; trade; oral tradition; Mozambique; Vilanculos; Arkeologi; Archaeology subjects; Arkeologiämnen;

    Sammanfattning : This thesis analyses the dynamics of environmental change and its embeddedness in the long term interactions of social history and rainfall variability through the building of an environmental history of the Chibuene locality, the coastal plain of southern Mozambique, 5 km south of the town Vilanculos, from 400 AD to present day. Land-use practices over time are discussed on the basis of vegetation and land-use history based pollen analysis, charcoal influx and diatom analysis. LÄS MER

  7. 5. Etude palynologique de l'Evolution Tardi- et Postglaciaire de la végétation du Moyen-Pays romand (Suisse)

    Författare :Marie-Jose Gaillard-Lemdahl; Dissertationes botanicae; []
    Nyckelord :Paleoecology; Paleoekologi;

    Sammanfattning : .... LÄS MER