Sökning: "primary succession"

Visar resultat 1 - 5 av 12 avhandlingar innehållade orden primary succession.

  1. 1. Long-term studies of succession : Colonisation and seed banks

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Ulf Grandin; Uppsala universitet.; [1998]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ecology; Ellenberg indicator values; genetic variation; long-term study; Lythrum salicaria; Moehringia trinervia; primary succession; seed bank; Ekologi; NATURAL SCIENCES Biology Terrestrial; freshwater and marine ecology; NATURVETENSKAP Biologi Terrestisk; limnisk och marin ekologi; ekologisk botanik; Ecological Botany;

    Sammanfattning : Using data from long-term studies of the vegetation in two areas under primary succession, patterns of colonisation and the accumulated seed bank during plant succession were studied.At century-old small islands in Lake Hjälmaren, Sweden, the genetic structure of differently old populations of Moehringia trinervia and Lythrum salicaria was studied, using allozyme variation for M. LÄS MER

  2. 2. Primary succession in man-made environments

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Sven-Olov Borgegård; Uppsala universitet.; [1990]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  3. 3. Community and food web assembly on virgin habitat islands - The nunatak saga

    Detta är en avhandling från Department of Biology, Lund University

    Författare :Maria Ingimarsdottir; Lunds universitet.; Lund University.; Lunds universitet.; Lund University.; [2012]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; allochthonous material; arthropods; community assembly; corridor; dispersal; Iceland; metacommunity; nunataks; primary succession; stable isotopes.;

    Sammanfattning : Popular Abstract in Icelandic Landnám á jökulskerjum Plöntur hafa lengi verið taldar nauðsynlegar til að dýr geti numið land en þessi sýn er að breytast því rannsóknir hafa sýnt að smádýr nema oft land á undan plöntum. Landnám bæði plantna og dýra getur hafist um leið og nýtt land myndast en til að landnám takist þurfa nokkrir þættir að fara saman. LÄS MER

  4. 4. Succession of wood-inhabiting fungal communities

    Detta är en avhandling från Department of Biology, Lund University

    Författare :Elisabet Ottosson; Sveriges lantbruksuniversitet.; [2013]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Dead wood constitutes an important substrate for biodiversity in boreal forests. As the wood decays, fungal communities develop and species associations are formed. Species interactions are thought to affect community development, but the mycelial dynamics within fungal communities are poorly understood. LÄS MER

  5. 5. Modelling the vegetation of the Earth

    Detta är en avhandling från Plant Ecology and Systematics, Lund University

    Författare :Alex Haxeltine; [1996]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; fraction absorbed photosynthetically active radiation; photosynthesis; canopy conductance; plant functional types; leaf area index; net primary production; vegetation distribution; biome; terrestrial biosphere model; biogeography; climate change; Last Glacial Maximum; Plant ecology; Växtekologi;

    Sammanfattning : This thesis describes the development and application of an equilibrium terrestrial biosphere model, BIOME3. The model simulates vegetation distribution and biogeochemistry, and couples vegetation distribution directly to biogeochemistry. LÄS MER