Search for dissertations about: "group foraging"

Showing result 1 - 5 of 19 swedish dissertations containing the words group foraging.

  1. 1. Foraging behaviour in benthivorous fish

    University dissertation from Department of Ecology, Lund University

    Author : Marika Stenberg; [2006]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Marinbiologi; resource assessment; giving-up densities; predation risk; foraging behaviour; limnology; marine biology; Ekologi; akvatisk ekologi; limnologi; group foraging; benthivorous fish; aquatic ecology; Hydrobiology; Ecology;

    Abstract : The foraging ability of an organism is essential since it affects various traits, e.g. growth, reproduction effort, social status and, ultimately, fitness. READ MORE

  2. 2. Optimal strategies and information in foraging theory

    University dissertation from Department of Ecology, Lund University

    Author : Emma Sernland; [2005]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; information use; Bayesian foraging; public information; prior information; negative binomial distribution; group foraging; decision-making; information updating; leaving strategy; Ecology; Ekologi;

    Abstract : 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. READ MORE

  3. 3. Optimal strategies and information in foraging theory

    University dissertation from Lunds Universitet

    Author : Emma Sernland; [2005]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Bayesian foraging; information use; public information; prior information; negative binomial distribution; group foraging; decision-making; information updating; leaving strategy; Ecology; Ekologi; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES Biology Other biology; NATURVETENSKAP Biologi Övrig biologi; Naturvetenskap; Natural sciences;

    Abstract : 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. READ MORE

  4. 4. Effects of behavioural flexibility and habitat complexity on predator-prey interactions in fish communities

    University dissertation from Lunds Universitet

    Author : Peter Eklöv; Gary G. Mittelbach; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; predator-prey interactions; behavioural flexibility; habitat complexity; foraging mode; sit-and-wait; group foraging; Perea fluviatilis; Esox lucius; Rutilus rutilus; size-structured interactions; species-specific antipredator behaviour; proximate cues; habitat distribution; temporal patterns;

    Abstract : .... READ MORE

  5. 5. Effects of Habitat Quality on Behavioural Decisions and Population Dynamics in the Siberian Jay

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Magdalena Nystrand; Jan Ekman; Erik Matthysen; [2006]
    Keywords : Biology; Perisoreus infaustus; relatedness; delayed dispersal; predation risk; foraging; trade-off; demography; source-sink dynamics; forest structure; Biologi;

    Abstract : 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. READ MORE