Sökning: "Olof Leimar"
Visar resultat 1 - 5 av 11 avhandlingar innehållade orden Olof Leimar.
1. Evolutionary analysis of animal fighting
Sammanfattning : .... LÄS MER
2. Food choice in fallow deer – experimental studies of selectivity
Sammanfattning : In this thesis, I experimentally investigate feeding selectivity in fallow deer (Dama dama), with respect to plant secondary compounds, especially tannins, which can decrease the quality of foods. I found that fallow deer avoided foods with higher amounts of tannic acid and Quebracho tannin, even though the deer ate some high-tannin food. LÄS MER
3. Colour patterns in warning displays
Sammanfattning : 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. LÄS MER
4. Predator psychology and mimicry evolution - a theoretical analysis
Sammanfattning : 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. LÄS MER
5. Mobility and emigration in butterflies
Sammanfattning : Because of its implications for the survival of many species, dispersal plays a key role in conservation biology. A good knowledge about the different factors that influence dispersal decisions is crucial for the understanding of inter-population movements. LÄS MER
