Sökning: "saproxylic"

Visar resultat 1 - 5 av 34 uppsatser innehållade ordet saproxylic.

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

    Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildning

    Författare :Simon Selberg; [2019]
    Nyckelord :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;

    Sammanfattning : 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. LÄS MER

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

    Master-uppsats, Karlstads universitet/Avdelningen för biologi

    Författare :Jeffery Marker; [2019]
    Nyckelord :saproxylic; beetles; richness; abundance; urban forests; forest management;

    Sammanfattning : 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. LÄS MER

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

    Master-uppsats, Linköpings universitet/Biologi

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

    Sammanfattning : 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. LÄS MER

  4. 4. Conservation of saproxylic beetles in a wooded pasture in northern Scania

    Master-uppsats, Lunds universitet/Examensarbeten i biologi

    Författare :Andreas Schmidt; [2018]
    Nyckelord :Biology and Life Sciences;

    Sammanfattning : The area of wooded pasture in Europe has decreased drastically over the last centuries due to abandoned management. Herrevadskloster is a newly formed nature reserve in northern Scania with an unusually long continuity of being an open, grazed woodland containing large old trees. LÄS MER

  5. 5. Vedlevande Coleoptera och Hemiptera förekomst på öar i Kolsnaren i sydvästra Södermanland

    Kandidat-uppsats, Högskolan i Halmstad/Akademin för ekonomi, teknik och naturvetenskap

    Författare :Jakob Bergström; [2017]
    Nyckelord :Vedlevande Coleoptera;

    Sammanfattning : ABSTRACT Seven islands in the lake Kolsnaren have been investigated. I have inventoried saproxylic insects and investigated what characters on dead wood and characters at the islands that have affected species number of beetles (Coleoptera) and true bugs (Hemiptera). LÄS MER