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Found 3 swedish dissertations matching the above criteria.

  2. 1. Evolutionary Perspectives on Naidinae (Annelida, Clitellata, Naididae): Molecular and Morphological Revelations

    Author : Ida Envall; Christer Erséus; Lena Gustavsson; Mari Källersjö; Endre Willassen; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Naididae; Naidinae; phylogenetics; molecular systematics; morphology; ultrastructure; Biology; Biologi; systematisk zoologi; Systematic Zoology;

    Abstract : Naidinae is a group of tiny oligochaetous clitellates, common all over the world, primarily in freshwater. The taxon includes about 180 nominal species. READ MORE

  4. 2. Exploring the species boundaries in terrestrial clitellates (Annelida: Clitellata)

    Author : Svante Martinsson; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Oligochaeta; species delimitation; Clitellata; Annelida; DNA-barcoding; cryptic species; Enchytraeidae; Lumbricidae; Naididae;

    Abstract : The biological diversity in the soil is much higher than most people can imagine, and a very important group of animals living there are earthworms and other clitellate worms. It has been found that several clitellate morphospecies are in fact complexes of so called cryptic species, and the number of species in this group may be much higher than previously believed. READ MORE

  5. 3. On enchytraeids and naidids: Life history traits and responses to environmental stress

    Author : Anna-Karin Augustsson; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ecology; oligochaeta; terrestrial naididae; toxicity testing; asexual reproduction; sexual reproduction; drought; environmental stress; metal pollution; Ekologi; Animal ecology; Djurekologi;

    Abstract : My thesis shows that enchytraeids and naidids are sensitive to various forms of environmental stress, which in combination with the wide distribution of both families make them highly suitable for use in risk assessment and soil monitoring. Enchytraeids were subject to chemical stress under both laboratory and field conditions. READ MORE