Search for dissertations about: "birds of prey"
Showing result 1 - 5 of 26 swedish dissertations containing the words birds of prey.
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1. Platinum Group Elements in Birds of Prey
Abstract : The environmental concentrations of Pd, Pt and Rh (three of the platinum group elements, PGE) have increased since the introduction of exhaust catalysts on automobiles. A limited understanding of the environmental distribution and effects of the platinum group elements has raised concern over their potential biological availability. READ MORE
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2. 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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3. Importance of wild birds in the spread of Salmonella
Abstract : Salmonella is one of the most important enteropathogenic bacteria. It is responsible for about 5000 reported cases of human gastroenteritis each year in Sweden. Salmonellosis is a zoonotic disease, and the bacterium has the ability to infect a variety of both domestic and wild animal species. READ MORE
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4. Spatial Vision in Birds: Anatomical investigation of spatial resolving power
Abstract : Avian eyes are big both in relative and absolute terms, thus the importance of vision to birds is obvious. Even though the general eye plan is rather conservative throughout the group, there is a great variation in visual capabilities. READ MORE
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5. Life at stake when playing hide and seek : Concealing effects of prey colouration and visual backgrounds
Abstract : A prey animal can use different strategies to avoid becoming eaten by predators. One such widely recognised strategy is the use of body colouration to decrease the risk of becoming detected, i.e. cryptic colouration. READ MORE