Search for dissertations about: "Hymenoptera"

Showing result 16 - 19 of 19 swedish dissertations containing the word Hymenoptera.

  2. 16. Taking a Bite out of Diversity - Taxonomy and systematics of biting midges

    Author : Jonas Strandberg; Kjell Arne Johanson; Urban Olsson; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ceratopogonidae; Dasyhelea; barcoding; COI; phylogeny Sweden; Forcipomyia; Bezzia; Palpomyia; Degen1; Systematic Zoology; zoologisk systematik och evolutionsforskning;

    Abstract : The biting midges (family Ceratopogonidae) is one of the most species rich amongst the biting flies (Diptera) and has been recorded from most parts of the world. The species are mostly known for their capability to act as vectors for several important diseases, which have helped in shaping the focus to one of its genera, Culicoides Latreille, 1809. READ MORE

  4. 17. Charting biodiversity : Scuttle flies and other poorly known insects in Sweden

    Author : Sibylle Häggqvist; Fredrik Ronquist; Jeff Skevinton; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Systematic Zoology; zoologisk systematik och evolutionsforskning;

    Abstract : Biodiversity has fascinated people in all times. We as a species are part of the global ecosystem and our survival depends on many other species around us. Charting biodiversity, however, has proven more difficult than one could imagine. READ MORE

  5. 18. Charting Insect Diversity

    Author : Dave Karlsson; Fredrik Ronquist; Torbjørn Ekrem; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; insect faunas; biological inventories; citizen science; DNA barcoding; morphotype barcoding; Systematic Zoology; zoologisk systematik och evolutionsforskning;

    Abstract : Background: Despite Sweden's rich legacy in entomology, a significant portion of its insect fauna remains poorly studied. Addressing this and other biodiversity knowledge gaps, the Swedish government unveiled the Swedish Taxonomy Initiative (STI) in 2002, with the ambitious goal of documenting and scientifically describing all multicellular species in the country. READ MORE

  6. 19. Trophic, Indirect, and Evolutionary Interactions in a Plant–Herbivore–Parasitoid System

    Author : Johan Stenberg; Lars Ericson; John Parker; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Plant resistance; coevolution; herbivory; Skeppsvik; food web; parasitism; maternal effect; natural selection; Filipendula ulmaria; Chrysomelidae; Terrestrial ecology; Terrestisk ekologi;

    Abstract : The aim of this thesis project was to elucidate patterns and processes associated with the biotic interactions in a natural plant–herbivore–parasitoid food web characterized by spatial and temporal heterogeneity with regard to species composition. The system examined is based on island populations of the perennial herb Meadowsweet (Filipendula ulmaria, Rosaceae), located in the Skeppsvik Archipelago. READ MORE