Search for dissertations about: "omnivory"

Found 4 swedish dissertations containing the word omnivory.

  1. 1. The effects of crayfish on interactions in freshwater benthic communities

    University dissertation from Ecology Building, 223 62 Lund, Sweden

    Author : Per Nyström; Lunds universitet.; Lund University.; [1999]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; exotic species; trophic cascades; omnivory; crayfish; Trophic interactions; freshwater; Hydrobiology; marine biology; aquatic ecology; limnology; Marinbiologi; limnologi; akvatisk ekologi;

    Abstract : Popular Abstract in Swedish Kräftors påverkan på födovävar i dammar och sjöar.... READ MORE

  2. 2. Food Web Ecology -- individual life-histories and ecological processes shape complex communities

    University dissertation from Department of Biology, Lund University

    Author : Martin Hartvig; Lunds universitet.; Lund University.; [2011]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; food web; community ecology; community assembly; size-structure; life-history omnivory; ontogeny; trophic interactions; trait based model; topology; emergent organisation; size-spectrum;

    Abstract : Popular Abstract in English A food web is a network diagram that describes which species that eat each other in nature. Such networks in marine environments e.g. show that cod eat herring, sprat, and sandeel - and that these eat numerous other species. READ MORE

  3. 3. Ontogenetic bottlenecks effects on intraguild predation systems and ecosystem efficiency

    University dissertation from Umeå : Umeå University

    Author : Birte Reichstein; Umeå universitet.; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; mixed interactions; cannibalism; life-history omnivory; ontogenetic niche shift; biomass overcompensation; biomass production; ontogenetic asymmetry; indirect effects; biology; biologi; zooekologi; Animal Ecology;

    Abstract : Size-dependent differences between individuals in size-structured organisms have fundamental effect on population and community dynamics. Intraguild predation (IGP) is one specifically interesting constellation that often arises when two size-structured populations interact. READ MORE

  4. 4. Omnivore population dynamics and trophic behavior

    University dissertation from Umeå : Umeå University

    Author : Anna-Sara Liman; Sveriges lantbruksuniversitet.; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Plant traits can mediate the interactions between plant feeding trophic omnivores and their herbivore prey via density effects and by altering the omnivore’s trophic behavior (plant vs. prey feeding). READ MORE