Sökning: "saproxylic"

Visar resultat 41 - 45 av 52 uppsatser innehållade ordet saproxylic.

  1. 41. Vedlevande lavar på döda grenar på levande träd i produktionsskog

    Magister-uppsats, SLU/Dept. of Ecology

    Författare :Mathias Livén; [2010]
    Nyckelord :lichens; branches; saproxylic; managed forest;

    Sammanfattning : Saproxylic lichens in managed forests have less substrate available than in unmanaged forests due to the shortage of dead wood. However, a suitable substrate for these lichens could be dead branches on living trees. LÄS MER

  3. 42. Effects of site quality and surrounding landscape on bryophytes and brackets on logs in woodland key habitats

    Magister-uppsats, Institutionen för fysik, kemi och biologi

    Författare :Nina Dahlerup; [2010]
    Nyckelord :WKH; dead wood; species richness; saproxylic species; scale; red-listed species;

    Sammanfattning : A tool for management and conservation of valuable forests in Sweden are WKH:s. In this study WKH:s different in size, connectivity, amount of dead wood and quality of logs were investigated for species richness of bryophytes and brackets on coniferous logs. LÄS MER

  4. 43. Metapopulation persistence of insects living in hollow oaks: effects of adding oaks in  the surrounding landscape

    Master-uppsats, Institutionen för fysik, kemi och biologi

    Författare :David Gilljam; [2009]
    Nyckelord :Metapopulation; Matrix; Fragmentation; Hollow oaks; Saproxylic; Conservation; Restoration;

    Sammanfattning : The oak district of Östergötland is one of the largest oak forests left in Europe and it harbours many threatened species dependent on old hollow trees. In this study, the saproxylic beetle Osmoderma eremita living in hollow oaks was used as a model species and parameterised for a metapopulation model (the incidence function model) at the level of individual trees. LÄS MER

  5. 44. Habitat preferences and reproductive success forthe threatened longhorn beetle Plagionotusdetritus

    Master-uppsats, SLU/Dept. of Ecology

    Författare :Lina Sundkvist; [2009]
    Nyckelord :cerambycidae; longhorn beetle; reproductive success; oak; threatened;

    Sammanfattning : Plagionotus detritus is a threatend longhorn beetle that only exists at one site in Sweden. It is saproxylic and depending on recently dead coarse oak wood for its larval development. LÄS MER

  7. 45. Evaluation of artificial habitats for saproxylic oak invertebrates: Effects of substrate, composition and distance from dispersal source

    Magister-uppsats, Institutionen för fysik, kemi och biologi

    Författare :Anna Larsson; [2008]
    Nyckelord :artificial environment; hollow oak; Quercus robur; saproxylic beetles; Sweden; wood mould boxes;

    Sammanfattning : Saproxylic species living in old hollow trees have low dispersal rate. Many of the species are threatened since their micro habitats are rare. To prevent some of these species from going extinct their habitats have to have the right management. In some areas artificial environment could be a solution. LÄS MER