Sökning: "dead wood"
Visar resultat 11 - 15 av 205 uppsatser innehållade orden dead wood.
11. Quantity and quality of oaks (Quercus) as suitable habitats for the longhorn beetle species Plagionotus detritus : An inventory study in Stockholm and Uppsala County, Sweden
Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildningSammanfattning : The longhorn beetle Plagionotus detritus is associated with newly dead oak wood and is declining throughout its distribution range. In Sweden, P.detritus has displayed one of the most dramatic reductions in distribution recorded for insect species and is near regional extinction. LÄS MER
12. Gräsmattan – brukande och berikande : en utveckling av Rålambshovsparkens bruksgräsmattor för att gynna biologisk mångfald och skapa fler upplevelsevärden
Uppsats för yrkesexamina på avancerad nivå, SLU/Dept. of Urban and Rural DevelopmentSammanfattning : Ungefär hälften av de gröna miljöerna i Sveriges städer utgörs av gräsmatta. Gräsmattans stora utbredning utgör ett hot mot biologisk mångfald och dessutom bidrar dess intensiva skötselbehov till en negativ klimatpåverkan. LÄS MER
13. Restoration effects on benthic macroinvertebrate diversity and community composition in a river
Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildningSammanfattning : Physical restoration efforts are common methods to restore running waters containingdegraded ecosystems due to anthropogenic activities such as irrigation, ditching, dammingand flood prevention. The goal is usually to restore waters to a more natural state, creatingmore physically complex habitats supporting a larger number of species of both fish andinvertebrates, hence increasing biodiversity. LÄS MER
14. POSSIBLE TIMING OF THE TRANSITION FROM PRE-INDUSTRIAL TO INDUSTRIAL CLIMATE IN THE CENTRAL TO NORTHERN OF SWEDEN, BASED ON PROXY DATA FROM TREE-RINGS
Master-uppsats, Göteborgs universitet/Institutionen för geovetenskaperSammanfattning : Earth’s climate has varied through time, with orbital forcing as the most dominant force on the climate system the last million years, causing glacial-interglacial cycles. The last glacial period ended about 11.6 thousand years (kyr), ago and the last interglacial maximum around 6.5 kyr ago. LÄS MER
15. Ekoparkernas inverkan på långhornskalbaggar (Cerambycidae) : artrikedom, abundans och artsamhällen i jämförelse med kommersiellt brukad skogsmark
Kandidat-uppsats, SLU/Dept. of Forest Ecology and ManagementSammanfattning : Several dead wood-dependent beetles need substrates which to great extent have been disfavored by intense forestry. Active and continuous restoration in Ecoparks may offer an option with intention to improve the habitation conditions. LÄS MER