Sökning: "subarctic"

Visar resultat 31 - 35 av 75 avhandlingar innehållade ordet subarctic.

  1. 31. Subarctic bryophyte ecology; phenotypic variation and responses to simulated environmental change

    Författare :Annika K. Jägerbrand; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER

  3. 32. Phytoplankton biomass and algal composition in natural, fertilized and polluted subarctic lakes

    Författare :Staffan Holmgren; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  4. 33. Nitrogen and phosphorus dynamics across an elevational gradient in a Swedish subarctic tundra

    Författare :Maja Sundqvist; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Rising temperatures associated with global climate change are likely to drive major shifts in plant and soil properties as well as plant-soil linkages that govern key ecosystem processes in subarctic tundra. However, the tundra landscape is not homogenous, but instead consists of a mosaic of vegetation types which differ greatly in vegetation characteristics and soil fertility. LÄS MER

  5. 34. Thriving in extremes : Local adaptation of grasses (Poaceae) to geothermally heated soils on a subarctic island

    Författare :Jan-Niklas Nuppenau; Aelys M. Humphreys; Catarina Rydin; Johan Ehrlén; Alessandro Chiarucci; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; abiotic stress; Agrostis; cold; colonization history; common garden; extreme environments; Festuca; frost; ice encasement; Iceland; heat; overwintering; phenology; plastome; snown; thermal tolerance; Plant Systematics; växtsystematik;

    Sammanfattning : Temperature is one of the most decisive parameters when it comes to determining characteristics and distributions of life worldwide. For plants, as sessile organisms, it is particularly important to be able to deal with the temperatures they are exposed to at a given location. LÄS MER

  7. 35. Nutrient use strategies of plants of various life-forms in a subarctic environment : Nutrient conservation as an adaption to infertile habitats

    Författare :Rolf Lutz Eckstein; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Developmental biology; Mean residence time; Nutrient productivity; Nutrient use efficiency; Plant strategies; Utvecklingsbiologi; Developmental biology; Utvecklingsbiologi; ekologisk botanik; Ecological Botany;

    Sammanfattning : Plant performance in relation to limiting nutrients was analysed using the concept of nutrient use efficiency (NUE). NUE can be decomposed into (1) the nutrient productivity (aNP) and (2) the mean residence time (MRT). LÄS MER