Browsing Master’s theses (MINA) by Title
Now showing items 74-93 of 454
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Deponering och rotupptag av 238U, 232Th, 226Ra och 228Ra i bär och tillhörande bladverk från områden med förhöjda nivåer av naturligt förekommande radioaktivitet
(Master thesis, 2021)Naturliga radionuklider förekommer med varierande koncentrationer i jordmånen och kan överföras till vegetation genom rotupptag eller deponering. Överföringen estimeras vanligen genom transferfaktorn, en väletablerad ... -
Depreciative tourist behaviour in a protected birdwatching site : a qualitative study of birdwatchers on Hornøya, Northern Norway
(Master thesis, 2019)Wildlife watching tourism is a growing industry and can become eco-friendly if sufficient conservation measures are actively included in the operative tourism strategies. Research on visitor behaviour is necessary to ... -
Detection and quantification of arsenolipids in human breast milk by HPLC-ICP-MS and HPLC-ESI-MS : method optimization to enable quantification of six arsenolipids at low concentration levels
(Master thesis, 2018)Recent research has shown that some arsenic containing lipids, common components of seafood, are highly cytotoxic and have the potential to cross the blood-brain barrier. Infants, in particular, are especially sensitive ... -
Detection of root and butt rot in Norway Spruce (Picea Abies) using airborne hyperspectral images and laser scanning
(Master thesis, 2020)The forest is an important renewable resource in a sustainable bioeconomy. Yearly, fungal decay causes economical losses that exceed 100 million NOK within the Norwegian forest sector. Root and butt rots are the main ... -
Deteksjon av pionertrær i tregrenseøkotonen ved bruk av tredimensjonale punktskyer fra bildematching
(Master thesis, 2019)Tregrenseøkotonen (overgangssonen mellom skog og treløst alpint område) har alltid vært i endring. I en periode med økning i gjennomsnittstemperatur og en endring i arealbruken, er tregrenseøkotonen forventet å etablere ... -
Determinants of scent-marking behavior by Asiatic cheetahs (Acinonyx jubatus venaticus) at camera traps in Iran
(Master thesis, 2021)Scent marking is a common behaviour in large carnivores and serves a multiple of ecological purposes. It functions as a method of communication, either to warn off intruders, attract mates or to mark territory. In surveys ... -
Development in phytoplankton assemblages, ecological status and purification effect in Teglverksdammen : a study of a pond the first two growth seasons following deculverting of an urban stream system in Oslo, Norway
(Master thesis, 2018)There is growing consensus that deculverting and restoration of buried urban streams may come with a range of ecological and socioeconomic benefits, including; reduced flood risks, improved water quality, facilitation of ... -
Dewatering of sludge for small scale and decentralized production of biochar
(Master thesis, 2021)Sewage sludge dewatering and drying is one of the major challenges in the current wastewater treatment systems. The current dewatering methods in centralized wastewater treatment plants whether using frame or belt filter ... -
Diet, diel activity and prey handling in the tawny owl (Strix aluco)
(Master thesis, 2018)I recorded prey deliveries and prey handling using video monitoring at three tawny owl (Strix aluco) nests from late april to late may in 2017, in Akershus county in southeast Norway. I registered a total of 455 prey items, ... -
Diet, diel activity pattern and prey handling of nesting hawk owls (Surnia ulula) as revealed by video monitoring
(Master thesis, 2018)I used video monitoring to record prey deliveries at four nests of the northern hawk owl (Surnia ulula) in southern Norway. One nest was monitored in May 2014, while the three other nests were monitored in May-July 2017. ... -
Diet, prey deliveries and prey handling of nesting golden eagles (Aquila chrysaetos) in Oppland county, Norway, as revealed by video monitoring of four nests throughout the nestling period
(Master thesis, 2020)In this study I used video monitoring of nests throughout the nestling period to study diet, prey deliveries and prey handling of four breeding pairs of golden eagles (Aquila chrysaetos) in Oppland county, Norway. A total ... -
Diet, prey deliveries, and prey handling of nesting urban peregrines (Falco peregrinus) in England, as revealed by continuous video monitoring
(Master thesis, 2020)The peregrine falcon (Falco peregrinus) is one of the most studied birds of prey. New developments within video recordings, and particularly the use of web cameras at the nest of urban peregrines, has allowed for a more ... -
Disentangling the drivers of European badger (Meles meles) activity at multiple temporal scales
(Master thesis, 2020)Animals shape their activity in response to several processes that take place at different timescales. It stands to reason that the assessment of activity at multiple temporal scales will enhance the understanding of its ... -
Distribution of metals and organic material along a Norwegian river - ocean transect
(Master thesis, 2021)The distribution of metals in aquatic systems is crucial for bioavailability and toxicity. Metals are transported from catchment to oceans through rivers. During this transport, the properties of metals (e.g., charge, size, ... -
Diversity of wild bees in semi-natural grasslands in southeast Norway is related to temperature and amount of edge habitat in the surrounding landscape
(Master thesis, 2021)The declines in diversity and abundance of wild bees are mainly attributed to the intensification of agricultural practices and the resulting loss of semi-natural grassland habitats. Furthermore, the effect of climate ... -
Do juvenile densities in the river Bognelv experience density dependency after river restoration and do the reopened side channel function as suitable nursing areas for juvenile brown trout (Salmo trutta)
(Master thesis, 2020)Det eksister ennå usikkerheter rundt den biologiske effektivitet rundt elverestaurering, til tross for mengden litteratur og finansiering som eksister oppgjennom historien. Dette setter lys på viktigheten forskning har for ... -
Does tunnel wash water have an impact on vital rates and displacement of Atlantic salmon (Salmo salar) and brown trout (Salmo trutta) in river Årungselva
(Master thesis, 2021)Earlier studies on runoff water from roads and tunnels have demonstrated that such water hold toxic substances that can be harmful to aquatic biota. River Årungselva, which flows into the inner part of Bunnefjorden close ... -
Drivers and consequences of partial migration in an alpine bird species
(Master thesis, 2020)1. Partial migration, where parts of a population migrate between winter and summer (breeding) areas and the rest remain year-round resident, is a common phenomenon across several bird species. However, both drivers and ... -
Drivers for phytoplankton community dominance of nuisance microalga Gonyostomum semen (Ehrenberg) Diesing in two South-Eastern Norwegian lakes : a paleolimnological approach
(Master thesis, 2018)Gonyostomum semen (Ehr.) Diesing has during the last decades expanded its distribution and increasingly started to dominate phytoplankton communities in Northern Europe, and particularly in Scandinavia. Several studies ... -
The effect of artificial light and latitude on foraging activity in resident passerines in Northern Europe
(Master thesis, 2020)Over the last couple of decades, there has been an increasing interest in the ecological consequences of artificial light on wildlife. At northern latitudes, winter is characterized by short days and low temperatures, ...