Search for dissertations about: "parasitic wasps"
Found 5 swedish dissertations containing the words parasitic wasps.
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1. Seeing the invisible: Evolution of wing interference patterns in Hymenoptera, and their application in taxonomy
Abstract : The remarkably thin transparent wing membranes in tiny wasps may appear to have a simple structural design, but hide a largely unexplored complex of micro-morphological features that serve aerodynamics and may also function in visual signaling. I found that when such small transparent wings are viewed against a dark background they display vivid structural color patterns due to thin film interference, and named them Wing Interference Patterns (WIPs). READ MORE
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2. Hidden Creatures – systematics of the Euphorinae (Hymenoptera)
Abstract : Parasitic wasps constitute one of the last remaining frontiers in the charting of animal diversity. The Braconidae is the second most species-rich family of parasitic wasps; the world fauna has been estimated at 40 000 species and the Swedish fauna is believed to include a little more than 2 000 species, 1 200 of which are currently documented. READ MORE
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3. From Parasitoids to Gall Inducers and Inquilines : Morphological Evolution in Cynipoid Wasps
Abstract : One of the large lineages of parasitic wasps, the Cynipoidea, exhibits three distinctly different life modes. Slightly more than half of the about 3000 species are parasitoids in insect larvae, whereas the remaining species are associated with plants, either as gall inducers or as inquilines (guests feeding on plant tissue in galls). READ MORE
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4. Systematics of Eucoilini : Exploring the diversity of a poorly known group of Cynipoid parasitic wasps
Abstract : Many animal species are still undiscovered, even in Sweden. This thesis deals with the wasps of the subfamily Eucoilinae (of Figitidae, Cynipoidea), a poorly known group of small parasitoids of Dipteran flies. READ MORE
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5. Coevolution and molecular background of species interactions in geographic mosaics
Abstract : In complex food webs, species often interact with each other indirectly through mediating species. As a result of geographic mosaic of coevolution, such interactions are often evolutionarily unstable and the traits governing the interaction sometimes vary over time. READ MORE