Search for dissertations about: "PREDATORS"
Showing result 1 - 5 of 179 swedish dissertations containing the word PREDATORS.
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1. Negotiating Wilderness in a Cultural Landscape : Predators and Saami Reindeer Herding in the Laponian World Heritage Area
Abstract : The UNESCO appointment of the Laponian World Heritage Area in 1996 meant that Sweden accepted the assignment of protecting both the cultural and natural values of this area for all mankind and all generations to come. Located in northern Sweden, Laponia had previously been protected for its natural values only, but the 1996 appointment determined that the local Saami reindeer herding culture should also be preserved. READ MORE
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2. The importance of predation in benthic stream communities
Abstract : There has been considerable debate whether or not predators has any significant effects on prey densities in streams. This thesis examines the importance of predation in stream communities. I have conducted both field and laboratory studies where I have studied how both vertebrate and invertebrate predators affects benthic prey. READ MORE
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3. The Spider and the Sea : Effects of marine subsidies on the role of spiders in terrestrial food webs
Abstract : The purpose of this study was to identify if terrestrial arthropod predators on Baltic Sea shores vary in their use of marine versus terrestrial food items, and to construct a bottom-up food web for Baltic Sea shores. The inflow of marine nutrients in the area consists mainly of marine algal detritus and emerging aquatic insects (e.g. READ MORE
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4. Attacking predators and fleeing prey : detection, escape and targeting behaviour in birds
Abstract : The aim of this thesis is to further our understanding of predator and prey behaviour and decision making in different attack situations. The thesis deals with escape strategies, predator detection ability and prey targeting behaviour. READ MORE
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5. Modelling Aspects of Wastewater Treatment Processes
Abstract : Wastewater treatment processes are inherently dynamic because of the large variations in the influent wastewater flow rate, concentration and composition. Moreover, these variations are to a large extent not possible to control. READ MORE