Search for dissertations about: "Enchytraeidae"

Found 5 swedish dissertations containing the word Enchytraeidae.

  2. 1. Systematics of Marionina (Annelida: Clitellata: Enchytraeidae)

    Author : Lisa Matamoros; Göteborgs universitet; []
    Keywords : Marionina; Michaelsena; Enchytronia; Enchytraeidae; cryptic species; molecular phylogeny; taxonomy; systematics; genetic diversity;

    Abstract : This thesis is about species of segmented worms that previously were placed in the genus Marionina Michaelsen, 1890, within the family Enchytraeidae, class Clitellata and phylum Annelida. These species are closely related to earthworms, but are much smaller and many of them are found between the sand grains in marine beaches. READ MORE

  4. 2. Systematics of Grania (Clitellata: Enchytraeidae), an interstitial annelid taxon

    Author : Pierre De Wit; Göteborgs universitet; []
    Keywords : Clitellata; Oligochaeta; Enchytraeidae; Grania; interstitial habitat; systematics; phylogeny; DNA barcoding; cryptic species;

    Abstract : In between the grains of sand on the ocean floor, there exists a world which few people are aware of. Representatives of almost all animal phyla can be found here. READ MORE

  5. 3. 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

  6. 4. Enchytraeidae (Oligochaeta) in pine forest soils : population dynamics and response to environmental changes

    Author : Heléne Lundkvist; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : .... READ MORE

  7. 5. 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