Sökning: "Habitat utilization"

Visar resultat 6 - 10 av 16 avhandlingar innehållade orden Habitat utilization.

  1. 6. Quantitative Genetics and Genome Structure in a Wild Population: the Use of a Great Reed Warbler Pedigree

    Författare :Mikael Åkesson; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; genome mapping ; AFLP; microsatellite; synteny; heterochiasmy; recombination; chicken; great reed warbler ; bird; Genetics; cytogenetics; Genetik; cytogenetik; Animal ecology; trait correlation ; Djurekologi; animal model ; selection; Djurs anatomi och morfologi; animal morphology; Animal anatomy; heritability;

    Sammanfattning : Long-term studies of birds play an important role in the understanding of quantitative traits in natural populations. The relative ease by which individual birds can be monitored and caught in the wild enable us collect detailed information from individuals throughout their life time, sometimes from several generations in a population. LÄS MER

  3. 7. Benthic use of phytoplankton blooms: uptake, burial and biodiversity effects in a species-poor system

    Författare :Agnes M. L. Karlson; Ragnar Elmgren; Carlo Heip; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; biodiversity; ecosystem functioning; benthic-pelagic coupling; niche; resource partitioning; competition; eutrophication; cyanobacterial blooms; diatoms; invasive species; Baltic Sea; Marine ecology; Marin ekologi; Marine Ecology; marin ekologi;

    Sammanfattning : Animals living in marine sediments (the second largest habitat on earth) play a major role in global biogeochemical cycling. By feeding on organic matter from settled phytoplankton blooms they produce food for higher trophic levels and nutrients that can fuel primary production. LÄS MER

  4. 8. Managing sea cucumber fisheries and aquaculture : Studies of social-ecological systems in the Western Indian Ocean

    Författare :Hampus Eriksson; Maricela de la Torre-Castro; Juan Carlos Castilla; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Sea cucumbers; Bêche-de-mer; Trepang; Echinoderms; Fisheries; Aquaculture; Governance; Trade; Seafood; Tropical seascape; Zanzibar; Mayotte; Western Indian Ocean; marin ekotoxikologi; Marine Ecotoxicology;

    Sammanfattning : Collecting sea cucumbers to supply the high value Chinese dried seafood market is a livelihood activity available to many people in the Western Indian Ocean (WIO), making it an important part of local economies. These fisheries are generally not successfully managed and tropical sea cucumber fisheries show continuing signs of decline. LÄS MER

  5. 9. Push and pull strategies : behaviour of geese in relation to scaring and set-aside fields

    Författare :Malin Teräväinen; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Geese have been increasing in numbers in Europe during the last decades. They forage in agricultural landscapes and may cause damage to sensitive crops. Scaring and set-aside fields are two commonly used methods to alleviate damage by “pushing” geese from sensitive fields and “pulling” them to areas where they don’t cause damage. LÄS MER

  7. 10. Myrar på Storön vid Norrbottenskusten

    Författare :Jan Elveland; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Våtmarker; Sverige; Norrbotten; Växtsamhällen;

    Sammanfattning : ELVELAND, J. 1976. Coastal mires on the Storön peninsula, Norrbotten, N Sweden. Wahlenbergia 3. LÄS MER