Sökning: "Assemblages"

Visar resultat 21 - 25 av 177 avhandlingar innehållade ordet Assemblages.

  1. 21. Fungal assemblages in forest trees : influence of internal and external conditions

    Författare :Marta Agostinelli; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : Forest trees host a plethora of microorganisms (bacteria, viruses, fungi) whose roles and diversity are still poorly understood despite the increased scientific interest for the past decades. The thesis focuses on the diversity of endophytic and epiphytic fungi in the aerial tissues of broadleaved trees. LÄS MER

  3. 22. Climate and vegetation during the Miocene - evidence from Danish palynological assemblages

    Författare :Linda Larsson; Berggrundsgeologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; palaeoenvironment; pollen; climate; Denmark; palynology; Miocene;

    Sammanfattning : Several Danish exposures and one drill core spanning the upper Oligocene-upper Miocene interval of the Cenozoic (i.e., 24–5 Myr ago) were palynologically investigated. LÄS MER

  4. 23. Habitat requirements and preservation of the beetle assemblages associated with hollow oaks

    Författare :Nicklas Jansson; Per Milberg; Karl-Olof Bergman; Simon Grove; Linköpings universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : One of the most endangered assemblages of species in Europe is saproxylic beetles associated with old trees. To be able to conserve these species there is a need of developing methods to survey the fauna and to evaluate the conservation value of different oak habitats, develop instruments for landscape planning and detailed knowledge of species habitat requirements. LÄS MER

  5. 24. The effects of settling cyanobacterial blooms on meiofaunal assemblages of the Baltic Sea

    Författare :Francisco Nascimento; Stockholms universitet; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  7. 25. Late Holocene humidity variability in central Sweden

    Författare :Sofia Andersson; Stefan Wastegård; Gunhild Rosqvist; Kristian Schoning; Frank Chambers; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; humidity change; stable isotopes; Chara spp; Pisidium spp; testate amoebae assemblages; humification; C N ratio; late Holocene; central Sweden; Quaternary geology; Kvartärgeologi; kvartärgeologi; Quarternary Geology;

    Sammanfattning : The aim of this thesis was to reconstruct humidity variability in central Sweden during the late Holocene. A multi-proxy approach was used to infer humidity changes as recorded in a lake and a mire. Age-models were constructed based on radiocarbon dating and the Askja-1875 tephra. LÄS MER