Search for dissertations about: "colonisation"

Showing result 1 - 5 of 121 swedish dissertations containing the word colonisation.

  2. 1. Colonisation and PAH degradation by wood-rotting fungi in contaminated soil

    Author : Erik Andersson; Bioteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; agricultural hydrology; Soil Science; Bioteknik; Biotechnology; PLFA; PAH metabolites; PAH; degradation; contaminated soil; soil; brown-rot fungi; white-rot fungi; Colonisation; fungal growth; Lantbrukshydrologi; marklära; Chemical technology and engineering; Kemiteknik och kemisk teknologi;

    Abstract : Bioremediation of soils is considered a low-cost alternative to other remediation techniques. Its ability to remove a number of different pollutants has been demonstrated, relying mainly on the activities of indigenous soil bacteria. READ MORE

  4. 2. Long-term studies of succession : Colonisation and seed banks

    Author : Ulf Grandin; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ecology; Ellenberg indicator values; genetic variation; long-term study; Lythrum salicaria; Moehringia trinervia; primary succession; seed bank; Ekologi; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi; ekologisk botanik; Ecological Botany;

    Abstract : Using data from long-term studies of the vegetation in two areas under primary succession, patterns of colonisation and the accumulated seed bank during plant succession were studied.At century-old small islands in Lake Hjälmaren, Sweden, the genetic structure of differently old populations of Moehringia trinervia and Lythrum salicaria was studied, using allozyme variation for M. READ MORE

  5. 3. Living on Another Shore : Early Scandinavian Settlement on the North-Western Estonian Coast

    Author : Felicia Markus; Anders Kaliff; Göran Hoppe; Kerstin Cassel; Uppsala universitet; []
    Keywords : HUMANIORA; HUMANITIES; Archaeology; Estonia; Estonian Swedes; Scandinavian settlement; Iron Age; early Medieval Period; colonisation; ethnic identity; migration; Baltic Sea; contacts; Christianisation; Arkeologi; Archaeology subjects; Arkeologiämnen; arkeologi; Archaeology;

    Abstract : Prior to the Second World War, there was a Swedish-speaking population settled on the north-western Estonian coasts. The early history of this group is largely unknown. No colonisation is mentioned in the written sources. The earliest such sources that mention Swedes originate in the late thirteenth century. READ MORE

  6. 4. The ecological significance of sexual reproduction in peat mosses (Sphagnum)

    Author : Sebastian Sundberg; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Developmental biology; Bryophyte; colonisation; disturbance; experiment; longevity; mire; safe site; spore; Utvecklingsbiologi; Developmental biology; Utvecklingsbiologi; ekologisk botanik; Ecological Botany;

    Abstract : Peat mosses (Sphagnum) are widely distributed and are a major component of mire vegetation and peat throughout the boreal and temperate regions. Most boreal Sphagnum species regularly produce sporophytes, but the ecological role of the spore has been questioned. READ MORE

  7. 5. The plasticity and geography of host use and the diversification of butterflies

    Author : Jessica Slove Davidson; Niklas Janz; Tommi Nyman; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Nymphalidae; host range; phylogeny; distribution; latitude; phylogeography; local specialisation; colonisation; host shift; polyphagy; speciation; diversification; zoologisk ekologi; Animal Ecology;

    Abstract : Our world is changing rapidly and factors like urbanisation, changed agricultural practices and climate change are causing losses in butterfly diversity. It is therefore of importance to understand the source of their diversity. READ MORE