Search for dissertations about: "Predator-prey"

Showing result 11 - 15 of 48 swedish dissertations containing the word Predator-prey.

  2. 11. Predation on marine pelagic bacteria : On the in situ rates, regulation and dynamics of bacterivory studied with a molecular genetic technique

    Author : Johan Wikner; Åke Hagström; Caron David; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Marine; grazing; minicells; molecular genetics; method; predation rate; dynamics; bacterivore; predator-prey; mikrobiologi; Microbiology;

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  4. 12. Predator-prey dynamics in small mammals along gradients of primary productivity

    Author : Tarja Oksanen; Christian Otto; N. C. Stenseth; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; cycles; herbivory; lemmings; mustelids; predation; productivitly; spatial heterogeneity; taiga; trophic exploitation; tundra;

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  5. 13. Why do rodent populations fluctuate? : stability and bifurcation analysis of some discrete and continuous predator-prey models

    Author : Torsten Lindström; Luleå tekniska universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Matematisk statistik; Matemathical Statistics;

    Abstract : A review of the microtine rodent cycle problem is given as well as a review of mathematical results related to the microtine rodent cycle problem. Biologically, 1 treat dynamical consequences of generalist predation and optimal breeding behavior. READ MORE

  6. 14. 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. 15. Size-dependent predator-prey interactions, distribution and mortality in salmon: effects on individuals and populations

    Author : Philip Jacobson; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The biomass dynamics of populations is largely determined by the survival, growth, and reproduction of individuals. For fish and other animals, survival, growth, and reproduction depends on the amount of energy an individual obtains via feeding and are therefore food-dependent. READ MORE