Sökning: "ecosystems processes"

Visar resultat 16 - 20 av 255 avhandlingar innehållade orden ecosystems processes.

  1. 16. Trophic ecology of meiofauna : Response to sedimentation of phytoplankton blooms in the Baltic Sea

    Författare :Francisco J.A. Nascimento; Ragnar Elmgren; Richard Warwick; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Meiofauna; Cyanobacteria; competition; facilitation; ecosystems processes; Marine ecology; Marin ekologi; Marine Ecology; marin ekologi;

    Sammanfattning : Marine soft sediments are the second largest habitat on Earth. How animal communities in this habitat are structured is a central issue in marine ecology. Food is an important limiting factor for many benthic populations, and settling organic matter from phytoplankton blooms is of vital importance to them. LÄS MER

  3. 17. High-­resolution mapping of soil organic carbon storage and soil properties in Siberian periglacial terrain

    Författare :Matthias Siewert; Gustaf Hugelius; Mats Olsson; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Soil organic carbon; Siberia; remote sensing; ecosystems; Physical Geography; naturgeografi;

    Sammanfattning : In the past years considerable attention has been given to soil organic carbon (SOC) stored in permafrost-affected soils in periglacial terrain. Studies have shown that these soils store around half the global SOC pool, making them a key component of the global carbon cycle. LÄS MER

  4. 18. Improvements for value creation in public services

    Författare :Daniel Gyllenhammar; Chalmers tekniska högskola; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; value co-creation; public services; customer focus; welfare services; service ecosystems; public service logic; Improvements; change processes;

    Sammanfattning : The demands on public services are constantly increasing and the public sector has, over the years, been subject to several management approaches trying to improve it. These new approaches have been criticized lately for an overly emphasis on market forces, specialization, and an intra-organizational focus, resulting in fragmented services and a poor system understanding for both citizens and employees of public organizations. LÄS MER

  5. 19. The hidden life of plants : fine root dynamics in northern ecosystems

    Författare :Gesche Blume-Werry; Roland Jansson; Ann Milbau; Scott D. Wilson; Isla Myers-Smith; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Arctic; belowground; boreal; climate change; fine roots; heath; meadow; minirhizotron; permafrost; phenology; plant community; root biomass; root growth; root litter; root production; subarctic; tundra;

    Sammanfattning : Fine roots constitute a large part of the primary production in northern (arctic and boreal) ecosystems, and are key players in ecosystem fluxes of water, nutrients and carbon. Data on root dynamics are generally rare, especially so in northern ecosystems. LÄS MER

  7. 20. Role of ecological processes in determining effects of contaminants in aquatic ecosystems

    Författare :Anna-Lea Golz; Clare Bradshaw; Karen Kidd; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ecosystem approach; ionizing radiation; HBCDD; microcosm; species interactions; indirect effects; marin ekotoxikologi; Marine Ecotoxicology;

    Sammanfattning : Aquatic ecosystems cover approximately 70% of the Earth’s surface and support a wide range of ecosystem services. Despite their importance, aquatic ecosystems are increasingly exposed to anthropogenic stressors, such as contaminants and climate change impacts. LÄS MER