Search for dissertations about: "bacterial diversity in freshwater"

Showing result 1 - 5 of 9 swedish dissertations containing the words bacterial diversity in freshwater.

  2. 1. Diversity and Ecosystem Functioning : Redundancy and Resilience in Freshwater Bacterial Communities

    Author : Hannes Peter; Lars J. Tranvik; Eva S. Lindström; Silke Langenheder; Nelson G. Hairston; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; biodiversity; ecosystem functioning; bacteria; fresh water; biofilms; multifunctionality; ecological networks; perturbation; fragility; Biologi med inriktning mot limnologi; Biology with specialization in Limnology;

    Abstract : Bacteria are immensely diverse and hold key-positions in essentially all biogeochemical cycles. In freshwater ecosystems, bacteria degrade and mineralize organic compounds, linking the pool of dissolved organic matter to higher trophic levels. READ MORE

  4. 2. Factors influencing the biogeography of bacteria in fresh waters - a metacommunity approach

    Author : Jürg Brendan Logue; Eva S. Lindström; Silke Langenheder; Lars Tranvik; Byron Crump; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; NATURVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; NATURAL SCIENCES; MEDICAL AND HEALTH SCIENCES; bacteria; diversity; richness; community composition; dispersal; metacommunity; fresh water; biogeography; Freshwater ecology; Limnisk ekologi; Microbiology; Mikrobiologi; Biologi med inriktning mot limnologi; Biology with specialization in Limnology;

    Abstract : One of ecology’s primary goals is to comprehend biodiversity and its patterns of distribution over space and time. Since microorganisms play a pivotal role in key ecological processes, the diversity of microbial communities may have important implications for the stability and functioning of Earth’s ecosystems. READ MORE

  5. 3. Significance and Diversity of Lake Bacteriophages

    Author : David Lymer; Eva Lindström; Lars Tranvik; Ruth-Anne Sandaa; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; viral ecology; lake; bacteriophage; diversity; phosphorus; Freshwater ecology; Limnisk ekologi;

    Abstract : Viruses has a relatively recently been discovered in high abundances in aquatic systems. Their possible importance has therefore been largely overlooked. READ MORE

  6. 4. Biodiversity and ecosystem functioning in created agricultural wetlands

    Author : Geraldine Thiere; Stefan Weisner; Högskolan i Halmstad; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; constructed ponds; eutrophication abatement; biodiversity conservation; functional diversity; macroinvertebrates; plants; bacterial denitrification; watershed scale; nitrogen removal; phosphorus retention; Terrestrial; freshwater and marine ecology; Terrestrisk; limnisk och marin ekologi; watershed scale;

    Abstract : This doctoral dissertation was produced in a cooperation between Halmstad University (Wetland Research Centre, School of Business and Engineering) and Lund University (Limnology & Marine Biology, Department of Ecology).Abstract . READ MORE

  7. 5. Links Between Structure and Function of Heterotrophic Aquatic Bacterial Communities

    Author : Silke Langenheder; Lars Tranvik; Eva Lindström; David Kirchman; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Ecology; heterotrophic bacteria; dissolved organic matter; diversity; community composition; ecosystem functioning; salinity; Ekologi; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi;

    Abstract : Heterotrophic bacteria utilize dissolved organic matter, and the carbon flow through an ecosystem depends on the fractions of the utilized carbon that is either respired or transferred to higher trophic levels. The major aim this thesis is to investigate 1) the relationship between composition and functioning in heterotrophic bacterioplankton communities and 2) the influence of environmental conditions on both parameters. READ MORE