Sökning: "primary succession"

Visar resultat 1 - 5 av 14 avhandlingar innehållade orden primary succession.

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

    Författare :Ulf Grandin; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ecology; Ellenberg indicator values; genetic variation; long-term study; Lythrum salicaria; Moehringia trinervia; primary succession; seed bank; Ekologi; Terrestrial; freshwater and marine ecology; 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

  3. 2. Primary succession in man-made environments

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

    Sammanfattning : .... LÄS MER

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

    Författare :Maria Ingimarsdottir; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; allochthonous material; arthropods; community assembly; corridor; dispersal; Iceland; metacommunity; nunataks; primary succession; stable isotopes.;

    Sammanfattning : The classical view of primary community assembly is that colonisation by plants is essential before invertebrates can establish. It has been recognised, however, that invertebrates can establish before plants, and that they may be important in the first steps of community assembly. LÄS MER

  5. 4. Succession of wood-inhabiting fungal communities : diversity and species interactions during the decomposition of Norway spruce

    Författare :Elisabet Ottosson; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    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

  7. 5. Vegetationssuccessioner - med speciell referens till Kvikkjokkdeltat

    Författare :Lars-Erik Liljelund; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Växtgeografi; Sverige; Lappland; Kvikkjokk;

    Sammanfattning : Clement's holological and Gleason's mereological approach about plant successions are. discussed. Ecological succession is here defined as a directed change of the space in time and is identified by immigration and extinction of populations. Establishment is a central process in all plant successions. LÄS MER