Search for dissertations about: "Community ecology"

Showing result 1 - 5 of 297 swedish dissertations containing the words Community ecology.

  1. 1. Benthic diatoms in the Gulf of Bothnia Community analysis and diversity

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Svenja Busse; Uppsala universitet.; [2002]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ecology; Baltic Sea; Biodiversity; Biomass; Community ecology; Diatoms; Multivariate analysis; Navicula; Phytobenthos; Salinity gradient; Scale; Size; Water movement; Ekologi; NATURAL SCIENCES Biology Terrestrial; freshwater and marine ecology; NATURVETENSKAP Biologi Terrestisk; limnisk och marin ekologi; Ecological Botany; Ekologisk botanik;

    Abstract : Benthic diatoms are valuable tools for biological monitoring and paleo-ecological reconstruction of past environmental conditions. This thesis aims at describing size-related properties of benthic diatoms and suggests that data assessment for community analysis can be improved by considering the importance of scale. READ MORE

  2. 2. Species interactions and community structure

    University dissertation from Peter Frodin, Department of Theoretical Ecology, Ecology Building, S-223 62 Lund, Sweden

    Author : Peter Frodin; Lunds universitet.; Lund University.; [2002]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ecology; Ekologi; spatial structure; local stability; enrichment; species interactions; Community structure; population dynamics;

    Abstract : In this theses I have focused on how the mechanisms of species interactions affect community structure. It is well known that certain species may have a particularly strong influence on the structure of a community. What is not fully understood is how to characterize these species that have such a strong impact on community structure. READ MORE

  3. 3. Predators in low arctic tundra and their impact on community structure and dynamics

    University dissertation from Umeå : Ekologi och geovetenskap

    Author : Maano Aunapuu; Umeå universitet.; [2004]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ecology; arthropods; coexistence; community dynamics; competition; food webs; hypothesis of exploitation ecosystems; intraguild predation; small mustelids; trophic cascades; Ekologi; NATURAL SCIENCES Biology Terrestrial; freshwater and marine ecology; NATURVETENSKAP Biologi Terrestisk; limnisk och marin ekologi; zooekologi; Animal Ecology;

    Abstract : The abundance of predators and their impact on ecosystem dynamics is a vividly discussed topic in current ecology. In my studies, incorporating field observations, field experiments and theoretical modeling, I explored the importance of predators and predation in a low arctic tundra ecosystem in northern Norway. READ MORE

  4. 4. Allochthonous and autochthonous carbon sources of lake bacterioplankton

    University dissertation from Department of Ecology, Lund University

    Author : Emma Kritzberg; Lunds universitet.; Lund University.; [2005]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Marinbiologi; limnologi; akvatisk ekologi; aquatic ecology; marine biology; Hydrobiology; bacterial community composition; bacterial growth efficiency; bacterioplankton; carbon subsidy; dissolved organic carbon; limnology;

    Abstract : Popular Abstract in Swedish Pelagiska bakterier använder löst organiskt material som kol- och energikälla. Det lösta materialet kan ha sitt ursprung i intern (autokton) eller terrester (allokton) primärproduktion. Den här avhandlingen handlar om hur bakterier använder autoktont och alloktont producerat kol. READ MORE

  5. 5. Seagrass Meadows. Community Ecology and Habitat Dynamics

    University dissertation from Department of Ecology, Lund University

    Author : Martin Gullström; Göteborgs universitet.; Gothenburg University.; [2006]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : .... READ MORE