Search for dissertations about: "foraging"

Showing result 1 - 5 of 111 swedish dissertations containing the word 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 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

  3. 3. 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

  4. 4. Fish foraging under visual constraints

    University dissertation from Department of Biology, Lund University

    Author : Mikael Jönsson; [2012]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; planktivore.; piscivore; brownification; visual foraging; Turbidity;

    Abstract : Visual conditions are changing in several different ways. Some lakes are getting turbid due to eutrophication or erosion while others are getting browner due to brownification. These two types of visual degradation results in completely different optical properties of lakes. READ MORE

  5. 5. Odour-mediated nectar foraging in the silver Y moth, Autographa gamma

    University dissertation from Chemical Ecology and Ecotoxicology, Department of Biology, Lund University

    Author : Dainius Plepys; [2001]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; predation risk; Noctuidae; Lepidoptera; flight tunnel; GC-EAD; single sensillum; sprayer; ultrasound; floral volatiles; attraction; foraging; mate-finding; lilac aldehydes; olfactory receptor neurones; Ecology; Ekologi; Chemistry; Kemi;

    Abstract : It is well established that floral odours play a significant role in the nectar foraging behaviour in Lepidoptera and other insect orders. Floral odour may elicit searching, alighting and feeding behaviours alone or in concert with visual stimuli. READ MORE