Sökning: "saproxylic"

Visar resultat 36 - 40 av 52 uppsatser innehållade ordet saproxylic.

  1. 36. Using sex pheromone and a multi-scale approach to predict the distribution of a rare saproxylic beetle

    Master-uppsats, Institutionen för fysik, kemi och biologi; Tekniska högskolan

    Författare :Najihah Musa; [2012]
    Nyckelord :Conservation; Elater ferrugineus; habitat fragmentation; hollow deciduous trees; multi-scale approach; predicted distribution; sex pheromone;

    Sammanfattning : The European red click beetle, Elater ferrugineus L., is associated with wood mould in old hollow deciduous tree. As a result of severe habitat fragmentation caused by human disturbance, it is threatened throughout its distribution range. LÄS MER

  3. 37. Elater ferrugineus and Osmoderma eremita, a regional survey and habitat requirements on different landscape scales

    Kandidat-uppsats, SLU/Horticulture (until 121231)

    Författare :Benjamin Forsmark; [2012]
    Nyckelord :Landscape Ecology; Saproxylic; Conservation; Coleoptera; Hollow Tree; Habitat; Fragmentation;

    Sammanfattning : Habitat destruction and fragmentation is the primary cause behind loss of biodiversity. Population dynamics are affected by factors that act on different spatial scales. To direct nature management efforts, the impact of different factors and at which spatial scale they act needs to be taken into consideration. LÄS MER

  4. 38. Retention of stumps on wet ground at stump-harvest and its effects on saproxylic insects

    Master-uppsats, SLU/Dept. of Forest Products

    Författare :Clémentine Ols; [2011]
    Nyckelord :stump harvesting; wet ground; saproxylic insects; biodiversity; stubbrytning;

    Sammanfattning : Low stumps represent on their own up to 80% of the dead wood remaining on clear cuts and therefore supply suitable habitat for saproxylic insects i.e. insects depending on dead wood for their survival. LÄS MER

  5. 39. Deadwood in piles or distributed : does it make any difference to saproxylic beetles?

    Master-uppsats, SLU/Dept. of Ecology

    Författare :Shermin Eslamifar; [2011]
    Nyckelord :Saproxylic beetles; Sweden; Forest management; Boreo-nemoral forest; Pile; Position; Deadwood; Red-listed; Wood living; Forest management; Connectivity; volume; diameter; Quality; Distributed; Scattered.; Accumulated; Stage of decay; Conservation; Biodiversity; ;

    Sammanfattning : Piles of deadwood are often retained in forests after management to support the biodiversity ofsaproxylic organisms which depend on deadwood to survive. Any knowledge about the crucial role ofpiles as suitable habitat of saproxylic organisms compared to single distributed deadwood objects thatare around the piles would help conservation actors to motivate more forest owners to supportsaproxylic organisms during their management. LÄS MER

  7. 40. Comparison of saproxylic beetle assemblages on four different broad-leaved tree species in south-eastern Sweden

    Master-uppsats, Institutionen för fysik, kemi och biologi

    Författare :Helena Johansson; [2011]
    Nyckelord :Conservation; coleoptera; beetles; saproxylic; broad-leaved trees; hollow; preferences;

    Sammanfattning : Old hollow trees have declined in Europe and many saproxylic (wood-dwelling) beetles dependent on them are threatened. Several studies have been done on old hollow oaks and they have been shown to harbour a species-rich saproxylic beetle fauna. However, other broad-leaved trees might also be important to consider as supporting habitats. LÄS MER