Sökning: "Restoration ecology"
Visar resultat 21 - 25 av 73 uppsatser innehållade orden Restoration ecology.
21. The wood-inhabiting fungal community on standing dead birches : a comparison of ring-barked and naturally dead trees
Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildningSammanfattning : Dead wood is an important part of forest ecosystems, especially since so many organisms depend on it for nutrients or as substrate for breeding or foraging. Since forestry intensified in northern Europe during the mid 1900s, the amount of dead wood in Fennoscandian forests has drastically decreased. LÄS MER
22. Restaureringens effekt på öringpopulationen
Kandidat-uppsats, SLU/Dept. of Forest Ecology and ManagementSammanfattning : Until the 1970s, rivers in Sweden were used for timber floating. In order for the floating to be as efficient as possible, with a minimum of timber getting stuck, many rivers were cleared. Large rocks and boulders were removed from the main channel and tributaries, backwaters and shallow areas were secluded. LÄS MER
23. Insektsamhällen i restaurerade skogar : en studie på hur abundansen av insektordningarna skalbaggar (Coleoptera), tvåvingar (Diptera), steklar (Hymenoptera) och fjärilar (Lepidoptera) ser ut i luckhuggna och brända bestånd jämfört med kontrollskogar
Kandidat-uppsats, SLU/Dept. of Forest Ecology and ManagementSammanfattning : Den biologiska mångfalden i de boreala skogarna har minskat. Det finns flera orsaker till detta, varav ett är trakthyggesbruket. På grund av trakthyggesbruk har dynamiken och strukturen i skogarna förändrats och strukturen till ett onaturligt tillstånd. Det skapas inte mycket gammal skog p. LÄS MER
24. Alteration of the forest structure in historically impacted Nothofagus spp. forests on the Brunswick peninsula : recommendations for their protection and management
Master-uppsats, SLU/Dept. of Forest Ecology and ManagementSammanfattning : Despite exhibiting a seemingly low degree of human alteration when compared to other types of landscapes, most forest ecosystems in the world have a long history of human use and are prod-uct thereof. The southern Brunswick peninsula is no exception to this and has an extensive history of anthropogenic activity, both pre-colonial and modern. LÄS MER
25. Ekologiska restaureringsåtgärders påverkan på unga trädplantor : bränning och luckhuggnings effekt på unga trädplantor
Kandidat-uppsats, SLU/Dept. of Forest Ecology and ManagementSammanfattning : Biodiversity is fundamental for a stable and functional ecosystem. However, studies have shown that biodiversity in Sweden is slowly declining due to modern forestry. This needs to be changed and ecological restoration can prevent further biodiversity loss. LÄS MER