Search for dissertations about: "predator avoidance"
Showing result 1 - 5 of 19 swedish dissertations containing the words predator avoidance.
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1. Predator psychology and mimicry evolution - a theoretical analysis
Abstract : The evolution of Müllerian mimicry depends on many factors, among which predator psychology is the most important one. Predator avoidance learning, generalization and discrimination are primary selective agents during the evolutionary process. READ MORE
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2. Cycles of voles, predators, and alternative prey in boreal Sweden
Abstract : Bank voles, grey-sided voles, and field voles had synchronous 3-4 year density cycles with variable amplitudes which averaged about 200-fold in each species. Cycles of vole predators (red fox and Tengmalm's owl), and their (foxes') alternative prey (mountain hare and forest grouse) lagged behind the vole cycles. READ MORE
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3. Local adaptive pigmentation in Asellus aquaticus -effects of UV-radiation and predation regime
Abstract : Pigmentation in the freshwater isopod Asellus aquaticus differed between two habitats. Asellus were lighter pigmented in stands of submerged stonewort vegetation, than in nearby reed stands. Moreover, Asellus pigmentation became lighter with time in recently established stonewort stands. READ MORE
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4. To move or not to move? Zooplankton strategies for food encounter and predator avoidance
Abstract : .... READ MORE
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5. Colour patterns in warning displays
Abstract : In aposematism a prey species use bright colours, often combined with a black contrasting pattern, to signal unprofitability as prey to potential predators. Although there are several different hypotheses about the presence of these internally contrasting patterns, there is little experimental evidence of any beneficial effects. READ MORE