Sökning: "selective biodiversity"
Visar resultat 1 - 5 av 23 uppsatser innehållade orden selective biodiversity.
1. The restoration period : a new era in forestry
Master-uppsats, SLU/Dept. of Forest Ecology and ManagementSammanfattning : In the last 200 years the boreal forests of Sweden have undergone a dramatic transformation. After a long history of high grading the largest trees foresters grew increasingly concerned about the state of logged over forests. The big question was how to regenerate and increase the productivity of sparse forests. LÄS MER
2. Luckhuggning, bränning och skalbaggar restaureringsåtgärdernas påverkan på de rödlistade skalbaggsarterna i Sverige
Kandidat-uppsats, SLU/Dept. of Forest Ecology and ManagementSammanfattning : Det skogsbruk som idag bedrivs på majoritet av den svenska skogsmarken har förändrat skogens struktur och variation; skogens heterogenitet har minskat. Detta påverkar en del av de skogslevande arterna negativt, och har bidragit till att många arter har minskat i sin utbredning och nu är rödlistade. LÄS MER
3. The effects of the exploiters (non-pollinating insects) on mutualistic interactions between the plant and its pollinator
Master-uppsats, Lunds universitet/Examensarbeten i biologiSammanfattning : Mutualistic interactions between, for example, plants and pollinators play a crucial role in maintaining the biodiversity of ecosystems, while non-pollinating insects (exploiters) that exploit plants are commonly thought to have destabilizing effects. The long-term, i.e. LÄS MER
4. Blädningsbrukets påverkan på biologisk mångfald : effekten på kärlväxters biodiversitet och specifikt förekomsten av blåbär
Kandidat-uppsats, SLU/Dept. of Forest Ecology and ManagementSammanfattning : The utilization of the Swedish forest as a natural resource has intensified during the last decade, which has led to an increase in disturbances on the forest ecosystems as a result of clear cutting. The effect of forestry on species richness and species composition has a large impact on how well the biodiversity and ecological communities can function. LÄS MER
5. Kalhygge eller hyggesfritt skogsbruk? - Faktorer som påverkar privata skogsägares val av avverkningsmetod Kandidatuppsats i
Kandidat-uppsats, Göteborgs universitet/Företagsekonomiska institutionenSammanfattning : The forest industry is one of Sweden's most important industries, providing high economic growth for the country. The most common harvesting method is clear cutting, which is both efficient and cost-effective. LÄS MER