Sökning: "Hollow oaks"

Visar resultat 1 - 5 av 10 uppsatser innehållade orden Hollow oaks.

  1. 1. 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

  3. 2. 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

  4. 3. Medium-term population development and responses to habitat conditions of a beetle, Osmoderma eremita, inhabiting hollow trees

    Uppsats för yrkesexamina på avancerad nivå, SLU/Southern Swedish Forest Research Centre

    Författare :Olle Tranberg; [2016]
    Nyckelord :Osmoderma eremita; European hermit beetle; metapopulation; colonization and extinction; habitat; saproxylic species; tree hollows; Pedunculate oak; Quercus robur;

    Sammanfattning : Old oaks play an important role in the southern Swedish landscape by maintaining available habitats for many saproxylic species, several of which today are on the international Red List of threatened species. Old oaks can develop important habitats, such as hollows with wood mould, which is the habitat for the European hermit beetle (Osmoderma eremita). LÄS MER

  5. 4. Boxing for biodiversity: a long-term follow up of an artificial dead wood environment

    Master-uppsats, Linköpings universitet/Biologi; Linköpings universitet/Tekniska fakulteten

    Författare :Staffan Carlsson; [2015]
    Nyckelord :Artificial habitats; saproxylic beetles; wood mould boxes; hollow trees; succession;

    Sammanfattning : Today many saproxylic species are threatened because of habitat decline in Europe. Hollow trees represent a great part of the habitats that saproxylic species use. Since hollows takes a long time to develop, management actions are needed to prevent the extinction of saproxylic species. LÄS MER

  7. 5. Skillnader i mulmvolymer mellan fem trädslag i Östergötlands eklandskap

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

    Författare :Staffan Carlsson; [2013]
    Nyckelord :Acer; Fraxinus; Hollow trees; Wood mould; Populus; Quercus; Saproxylic; Tilia; Acer; Fraxinus; Hålträd; Mulm; Populus; Quercus; Saproxylisk; Tilia;

    Sammanfattning : Old hollow trees of oak contain a large amount of wood mould. Unfortunately, these trees have in the last century been greatly reduced in numbers. It has resulted in that species that depend on these habitats, saproxylic species, have become at risk to decrease in numbers or die out regionally. LÄS MER