Sökning: "saproxylic"

Visar resultat 1 - 5 av 19 avhandlingar innehållade ordet saproxylic.

  1. 1. Old-Growth Forests in the High Coast Region in Sweden and Active Management in Forest Set-Asides

    Författare :Jennie Sandström; Bengt-Gunnar Jonsson; Mattias Edman; Mikael Ohlson; Mittuniversitetet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Coarse woody debris; Dead wood; Dendrochronology; Fire history; Forest conservation; Forest structure; Log; Meta-analysis; Pine heath forest; Prescribed burning; Saproxylic fungi; Saproxylic beetles; Snag; Wood-inhabiting fungi; Aktiv skötselmetod; Bevarandebiologi; Brandhistorik; Dendrokronologi; Död ved; Hällmarkstallskog; Lågproduktiv skog; Meta-analys; Naturvård; Naturvårdsbrand; Skogsstruktur; Solbelyst död ved; Stock; Torraka; Vedlevande svamp; Vedlevande insekter; Åldersstruktur;

    Sammanfattning : In today´s intensively managed landscape, very few forests with old-growth characteristics and little human impact exist. One of the rare exceptions is pine forests on rocky soils, a forest type which has probably escaped extensive human use because of its low productivity. LÄS MER

  3. 2. Biochemical Interactions of Some Saproxylic Fungi

    Författare :Joel Ljunggren; Bengt Gunnar Jonsson; Erik Hedenström; Dan Bylund; Mittuniversitetet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; biologically active compounds; bioactive; fungi-fungi interaction; fungi co-culture; extracellular amino acids.;

    Sammanfattning : Interactions are all around us, and as humans we may use words and gestures to communicate our intentions. At the micro level of fungi, communications are replaced by chemical signals and structure. LÄS MER

  4. 3. The importance of small forest set-asides for saproxylic biodiversity at stand- landscape- and regional scales

    Författare :Mari Therese Jönsson; Mittuniversitetet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; boreal forest; colonization-extinction dynamics; dendrochronology; dead-wood dynamics; disturbance dynamics; forest history; fragmentation; metapopulations; national inventories; old-growth forest; picea abies; saproxylic species; set asides; spatiotemporal dynamics; stand reconstructions; tree mortality; woody debris; wood-decaying fungi; woodland key habitats; Biology; Biologi;

    Sammanfattning : .... LÄS MER

  5. 4. Community Assembly and Spatial Ecology of Saproxylic Coleoptera

    Författare :Jonas Victorsson; Mats Björklund; Stefan Ås; Anne Magurran; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Terrestrial ecology; Terrestisk ekologi; Animal Ecology; zooekologi;

    Sammanfattning : Community assembly is the process deciding inclusion/exclusion of species in a developing community. Spatial ecology integrates spatial habitat factors with local biotic interactions within a given patch. I used standardized tree bolts (0.35-1 m long) to sample saproxylic (wood living) beetles in natural and managed forest types. LÄS MER

  7. 5. Colonization Patterns of Wood-inhabiting Fungi in Boreal Forest

    Författare :Jörgen Olsson; Lars Ericson; Jørund Rolstad; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Wood-inhabiting fungi; colonization; dispersal; restoration fire; saproxylic beetles; conservation; forest management; boreal forest; Terrestrial ecology; Terrestisk ekologi;

    Sammanfattning : Forest management practices have changed the over-all structure of the Fennoscandian forest landscape resulting in a lack of suitable substrates for many wood-inhabiting species. The objectives of this thesis was to describe the colonization patterns of wood-inhabiting fungi, including the potential role of beetles as dispersal vectors, on different types of dead wood substrate and assess the importance of active measures in the forest landscape in order to restore biodiversity i. LÄS MER