Sökning: "group foraging"
Visar resultat 1 - 5 av 20 avhandlingar innehållade orden group foraging.
1. Foraging behaviour in benthivorous fish
Sammanfattning : The foraging ability of an organism is essential since it affects various traits, e.g. growth, reproduction effort, social status and, ultimately, fitness. LÄS MER
2. Optimal strategies and information in foraging theory
Sammanfattning : In this thesis, I present both theoretical and empirical work where we have studied how humans and animals use information in situations where they need to continually update their information on the density of a resource. We have found that the amount of information, and the way the information is presented, are important factors for how well decisions are adapted to current circumstances. LÄS MER
3. Effects of behavioural flexibility and habitat complexity on predator-prey interactions in fish communities
Sammanfattning : .... LÄS MER
4. Effects of Habitat Quality on Behavioural Decisions and Population Dynamics in the Siberian Jay
Sammanfattning : The dynamics of natural populations may be influenced by a variety of factors, ranging from feeding interference and territoriality to the risk of predation and climatic effects. The relative influence of these factors may be contingent upon the quality of the habitat in which individuals reside. LÄS MER
5. Interspecific Interactions between Native Brown Trout and Invasive Brook Trout: Insights into Behaviour and Morphology
Sammanfattning : The introduction of non-native species represents a global threat to ecosystems and biodiversity. In Europe, the introduction of the invasive brook trout (Salvelinus fontinalis) has led to species displacement and local extinction of native brown trout (Salmo trutta) populations. LÄS MER