Search for dissertations about: "prey"

Showing result 6 - 10 of 213 swedish dissertations containing the word prey.

  2. 6. Predator-Prey systems and Applications

    Author : Torsten Lindström; Luleå tekniska universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Mathematics; Matematik; Mathematics;

    Abstract : .... READ MORE

  4. 7. Predator-prey interactions in freshwater systems: The importance of chemical communication

    Author : Kajsa Åbjörnsson; Enhet akvatisk ekologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; marine biology; aquatic ecology; limnology; Marinbiologi; limnologi; akvatisk ekologi; Ecology; Ekologi; Hydrobiology; trophic cascades; non-lethal effects; benefits; costs; heredity; predator experience; alarmsubstances; dietary cues; amphibian larvae; invertebrates; visibility; fish; behaviour; Predator-prey; chemical cues;

    Abstract : Predator released chemical cues provide a valuable source of information to prey organisms that can be used to alter their behaviour in order to reduce predation risk. In this thesis, I have examined under what circumstances chemical cues may be used by prey, and if prey discriminate between different cues. READ MORE

  5. 8. Life at stake when playing hide and seek : Concealing effects of prey colouration and visual backgrounds

    Author : Marina Dimitrova; Merilaita Sami; Innes C. Cuthill; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; predation; adaptive prey coloration; camouflage; concealment; crypsis; background matching; disruptive colouration; distractive markings; Terrestrial ecology; Terrestrisk ekologi; zoologisk ekologi; Animal Ecology;

    Abstract : A prey animal can use different strategies to avoid becoming eaten by predators. One such widely recognised strategy is the use of body colouration to decrease the risk of becoming detected, i.e. cryptic colouration. READ MORE

  6. 9. Predator effects on behaviour and life-history of prey

    Author : Tomas Brodin; Frank Johansson; Bradley Anholt; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; activity; behaviour; behavioural syndromes; damselfly; development; growth; life-history; predator-prey interaction; predation risk; thinning; Freshwater ecology; Limnisk ekologi;

    Abstract : In this thesis I investigate predator-induced effects on behavioural and life-history characteristics of prey. At any moment a given predator is capable of attacking a small number of prey. READ MORE

  7. 10. Piscivore-prey fish interactions - consequences of changing optical environment

    Author : Lynn Ranåker; Enhet akvatisk ekologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; behaviour; brownification; freshwater ecosystems; growth; piscivore-prey fish interactions; selectivity; turbidity;

    Abstract : Predator-prey interactions are a primary structuring force in aquatic systems. A change in the predator-prey interactions may cause a change in the strength of trophic cascades and even resulting in ecosystem shifts. READ MORE