Sökning: "regional assemblages"

Visar resultat 1 - 5 av 27 avhandlingar innehållade orden regional assemblages.

  1. 1. Palaeoenvironmental changes in the northern boreal zone of Finland: local versus regional drivers

    Författare :Shyhrete Shala; Karin H. Helmens; Christian Bigler; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Palaeolimnology; Palaeoecology; Biological assemblages; Sediment geochemistry; Regional drivers; Local drivers; Quantitative temperature reconstructions; Transfer-functions; Holocene; MIS 5d-c; Northern boreal zone; NE Finland; kvartärgeologi; Quaternary Geology;

    Sammanfattning : Multiple proxies derived from the Lake Loitsana sediment sequence (NE Finland) are employed to determine the timing of deglaciation, characterise an early Holocene proglacial lake stage and reconstruct Holocene lake development. Local-scale processes causing shifts in biological assemblages are identified and the most likely Holocene mean July air temperature (Tjul) development is assessed. LÄS MER

  3. 2. Jakten på den attraktiva regionen : En studie om samtida regionaliseringsprocesser

    Författare :Ida Grundel; Lars Aronsson; Lotta Braunerhielm; Richard Ek; Karlstads universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Regionalization; regionalism s ; regional assemblages; discursive practices; discursive knowledge; regions; Kulturgeografi; Human Geography;

    Sammanfattning : This thesis explores different expressions of regionalism(s) and regionalization processes in a Swedish and a westernized context. The case studies in the study conducted are represented by two different kinds of regions, Värmland and The Eight Million City. LÄS MER

  4. 3. Swedish seagrass ecosystems in a changing climate : Coastal connectivity and global change sensitivity

    Författare :Diana Perry; Martin Gullström; Jason Hall-Spencer; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; coastal seascape; shallow-water ecosystems; fish assemblages; connectivity; global change; climate change; multiple stressors; seagrass; Zostera marina; temperate region; Marine Ecology; marin ekologi;

    Sammanfattning : Coastal shallow-water ecosystems are essential for providing several goods and services globally, with seagrasses as an important contributor for maintaining high biodiversity and productivity within the nearshore seascape. The temperate species Zostera marina serves as a vital habitat for many species, including ecologically and economically important juvenile fish. LÄS MER

  5. 4. Neolithic Fisheries : Osteoarchaeology of Fish Remains in the Baltic Sea Region

    Författare :Carina Olson; Jan Storå; Karin LImburg; Jan Ekman; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Neolithic fisheries; local and regional ecosystems; species variation; burnt and unburnt bones; representativeness; contextual quantification; fishing technology; spatial patterns; Archaeology subjects; Arkeologiämnen; osteoarkeologi; Osteoarchaeology;

    Sammanfattning : The variety of fish species found at the archaeological sites indicates the exploitation of local and regional ecosystems. The focus of the fisheries varies from site to site. LÄS MER

  7. 5. Present and Past Coastal Dune Environments of South Buenos Aires Province, Argentina

    Författare :Sonia L. Fontana; Keith D. Bennett; Sara C. Ballent; Marie-José Gaillard; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Quaternary geology; pollen; ostracods; dune vegetation; Holocene; Buenos Aires Province; Argentina; Kvartärgeologi; Quaternary geology; Kvartärgeologi;

    Sammanfattning : The aim of this thesis is to describe present and past coastal dune environments in southern Buenos Aires Province, Argentina. The present vegetation of a dune system and its zonation are described on the basis of air photographs, physiognomy of the dune system and floristic composition. LÄS MER