Sökning: "Stein Fredriksen"

Hittade 4 avhandlingar innehållade orden Stein Fredriksen.

  1. 1. Herbivory, phenotypic variation, and reproductive barriers in fucoids

    Författare :Helena Forslund; Lena Kautsky; Ove Eriksson; Stein Fredriksen; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Non-indigenous species; Enemy Release Hypothesis; Asexual reproduction; Phlorotannins; Distribution; Plant Ecology; växtekologi;

    Sammanfattning : Along the shores of the Northern hemisphere Fucus (Phaeophyceae) species are a prominent presence, providing substrate, shelter, and food for many species. Fucus evanescens, a non-indigenous species (NIS) in Sweden, and F. LÄS MER

  3. 2. Factors structuring Fucus communities at open and complex coastlines in the Baltic Sea

    Författare :Martin Isaeus; Lena Kautsky; Johan Ehrlén; Stein Fredriksen; Stockholms universitet; []
    Nyckelord :Botany;

    Sammanfattning : This thesis deals with physical factors and biological interactions affecting the distribution of two fucoid species, Fucus vesiculosus and F. serratus, in the Baltic Sea. Studies have been carried out in two quite different environments: an archipelago, and an open rocky coast. LÄS MER

  4. 3. Distribution patterns and ecology of Fucus serratus L. and Fucus vesiculosus L. in the Baltic Sea

    Författare :Torleif Malm; Stein Fredriksen; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Plant Ecology; växtekologi;

    Sammanfattning : .... LÄS MER

  5. 4. Macroalgal community dynamics on coral reefs : Implications for management

    Författare :Erik Mörk; Nils Kautsky; Magnus Nyström; Tim R. McClanahan; Stein Fredriksen; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Macroalgae; Coral Reefs; Herbivory; Nutrients; Ecosystem change; Fish; Sea Urchins; East Africa; marin ekotoxikologi; Marine Ecotoxicology;

    Sammanfattning : Although rather inconspicuous on healthy coral reefs, macroalgae form the basis of coral food webs. Today, macroalgae are generally increasing and many reefs undergo transitions from coral to macroalgal dominance resulting from e.g. enhanced nutrient loading or increased fishing. LÄS MER