Essays about: "saproxylic beetle"

Showing result 6 - 10 of 29 essays containing the words saproxylic beetle.

  1. 6. Granstubbar som substrat för vedlevande skalbaggar : en jämförelse av faunan i gallringsstubbar och slutavverkningsstubbar

    University essay from SLU/Dept. of Ecology

    Author : Samuel Persson; [2020]
    Keywords : granstubbar; vedlevande skalbaggar; artrikedom; abundans; artsammansättning; gallring; slutavverkning; stubbrytning;

    Abstract : I Sverige finns det ca 1 300 skalbaggsarter som är beroende av död ved och gamla träd i olika former. Många av dessa arter har minskat i samband med att våra skogar förändrats och idag är ca 435 av arterna upptagna på den svenska nationella rödlistan. READ MORE

  3. 7. The importance of Ecoparks for saproxylic beetles : a study on general ecological hypotheses in differently managed landscapes

    University essay from SLU/Dept. of Wildlife, Fish and Environmental Studies

    Author : Albin Larsson Ekström; [2020]
    Keywords : deadwood; saproxylic beetles; habitat amount hypothesis; habitat heterogeneity hypothesis; landscape ecology; landscape intermediate complexity hypothesis;

    Abstract : Current forestry practices have led to a decline of deadwood availability in Swedish forests. Even though deadwood has increased somewhat in Swedish forests in later years, it is still far from estimated deadwood threshold levels and of those found in natural systems. This has in turn led to a decline in species associated with deadwood e.g. READ MORE

  4. 8. Saproxylic beetles in Populus tremula fauna depots - how do you construct the best depot?

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Simon Selberg; [2019]
    Keywords : aspen; populus; tremula; saproxylic; beetle; fauna; depot; species; richness; abundance; diversity; cwd; course; woody; debris; forest; asp; populus; tremula; vedlevande; skalbagge; fauna; depå; art; mångfald; diversitet; död; ved; cwd; skog;

    Abstract : The biodiversity of saproxylic organisms and in the case of this study, saproxylic beetles, is dependent on the amount and quality of course woody debris (CWD) in the environment. Over the past decades the quantity of CWD in Swedish forests has increased, yet the quality has decreased, forests are managed and exploited, and old-growth forests are rarer. READ MORE

  5. 9. Effect of distance to urban areas on saproxylic beetles in urban forests

    University essay from Karlstads universitet/Avdelningen för biologi

    Author : Jeffery Marker; [2019]
    Keywords : saproxylic; beetles; richness; abundance; urban forests; forest management;

    Abstract : Urban forests play key roles in animal and plant biodiversity and provide important ecosystem services.  Habitat fragmentation and expanding urbanization threaten biodiversity in and around urban areas.  Saproxylic beetles can act as bioindicators of forest health and their diversity may help to explain and define urban-forest edge effects. READ MORE

  6. 10. COMPARING THE COMPOSITION OF SAPROXYLIC BEETLE FAUNA ON OLD HOLLOW OAKS BETWEEN TWO TIME PERIODS

    University essay from Linköpings universitet/Biologi

    Author : Chipango Kamboyi; [2019]
    Keywords : Saproxylic beetles; Guilds; Species composition; Canopy Cover; Forest Regrowth; Trunk Circumference; Cavity size. Species turnover;

    Abstract : Oak habitats are rich in saproxylic species, but the habitat is declining with loss of diversity due to encroachment which decrease the vitality of oaks. The present explorative study compared results from a study conducted in 1994, with present species communities to observe if there has been change in species composition and what factors that can explain species diversity and composition. READ MORE