Sökning: "Diurnal Effects"
Visar resultat 1 - 5 av 18 uppsatser innehållade orden Diurnal Effects.
1. Nattfjärilar (Macrolepidoptera) längs smala kraftledningsgator omgiven av olika successionsstadier av boreal skog
Kandidat-uppsats, Karlstads universitetSammanfattning : Ett av de primära hoten mot biologisk mångfald och populationsnedgångar är utvecklingen av de moderna jord- och skogsbruket, där intensifierad markanvändning vidare har lett till förlust av lämpliga livsmiljöer för många organismgrupper, inklusive insekter. Nattfjärilar anses vara en indikatorgrupp för miljöförändringar och deras nedgång har dokumenterats i flera europeiska länder. LÄS MER
2. Ljusföroreningars inverkan på nattlig pollinering : En paraplygranskning av mörkrets betydelse vid analys av urbana ekosystemtjänster
Kandidat-uppsats, Högskolan i Halmstad/Akademin för företagande, innovation och hållbarhetSammanfattning : Outdoor artificial light at night (ALAN) is raising concern as a possible cause of the loss of insect diversity. Due to a diurnal bias in standard methods in environmental monitoring and urban ecosystem service assessments, the issue has remained in the dark and especially relevant for nocturnal pollination, which is less well known. LÄS MER
3. Using Dynamic Double Machine Learning for Guided District Heating Forecasting and Physical Parameter Extraction
Master-uppsats, Lunds universitet/Matematisk statistikSammanfattning : This thesis’ main goals were to provide accurate forecasts and informative physical parameter estimates for energy use of the district heating in the Tingbjerg neighborhood, Copenhagen. Our work is aimed as a contribution for future work towards efficient on-demand energy production. LÄS MER
4. Effects of Salinization on Lake Metabolism
Kandidat-uppsats, Karlstads universitet/Institutionen för miljö- och livsvetenskaper (from 2013)Sammanfattning : With rising salinity levels in many freshwaters across the globe caused by for example sealevel rise and de-icing salts, it becomes important to understand what effect it has on freshwater ecosystems, since the lakes and rivers themselves are important parts in the global carbon cycle. In this study I have looked at what effects increased salinity levels have on different lakes metabolism, specifically oxygen concentration and primary production. LÄS MER
5. Energy balance closure, water balance, carbon exchange, and water use efficiency : observed and modeled outcomes for a managed, hemiboreal forest in Southern Sweden
Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskapSammanfattning : The claims for the potential of boreal and sub-boreal forests to combat negative effects of climate change have been substantial with over half of Earth’s primary forests found within boreal and temperate regions of the Northern Hemisphere. Given the likely occurrence of more extreme climate events in the future, ascertaining a better understanding of how climate effects, such as profound fluctuations in precipitation, decreases in yearly snow, faster snow melt rates, variability in evapotranspiration due to environmental stress, and related changes in the energy, hydrological, and carbon cycles will change these northern, boreal landscapes is crucial. LÄS MER
