Blar i Master i natur-, helse- og miljøvern på emneord "VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488"
Viser treff 1-19 av 19
-
Analysis of shrub- and lichen-dominated vegetation types at Imingfjell
(Master thesis, 2019)Climate change can have a large impact on the vegetation composition in alpine areas. Lichen heaths are particularly vulnerable, among others because these are threatened by expanding shrub species like B. nana. Imingfjell ... -
Apple tree phenology in relation to temperature in Sauherad (Norway)
(Master thesis, 2018)Temperature plays a crucial role for the phenological development of plants and since past few decades Earth’s temperature is increasing. Plants are responding to this rise in temperature, through variations in their ... -
Biodegradation of plastic and potential impact of microorganism on Biodegradation
(Master thesis, 2020) -
Canines as biodetectors for conservational work: can they discriminate Rock ptarmigan from Willow ptarmigan?
(Master thesis, 2018)The main goals for conservation biology is to document the full range of biological diversity and human impact, along with developing plans, approaches and measures to prevent extinction of species. Alpine and arctic bird ... -
Deadwood in beaver (Castor fiber) habitat – a study with focus on polypore fungi and saproxylic insects
(Master thesis, 2020)Deadwood is known as a diversity indicator in a forest, where 20-25 % of all forest species in the Nordic countries are dependent on deadwood. 10.7 % of the saproxylic beetles in Europe and 37 % of the polypore fungi in ... -
The effect of hunting bans on population development in the willow grouse (Lagopus lagopus) in Norway
(Master thesis, 2020)The willow grouse (Lagopus lagopus) is by far the most popular small game species in Norway, and it is hunted annually throughout the country. However, during the last 20 years it has experienced a continuous decline, and ... -
Effect of sheep grazing and fertilization on species richness, diversity, and biomass in an alpine area in Central Norway
(Master thesis, 2020)Impact of herbivores in different ecosystems is an important subject in ecology. Herbivores have been shown to have a large and complex impacts on ecosystems around the world that can drive changes of plant community ... -
Effects of sheep grazing on alpine vegetation, a study from Forrolhogna National Park in Central Norway
(Master thesis, 2018)Alpine areas in Norway have a long history of domestic herbivory, and understanding the impact of grazing on alpine vegetation is therefore important for sustainable management of these areas. Domestic herbivory has the ... -
Environmental and floristic differences between three contrasting study areas in an alpine ecosystem: Hardangervidda National Park, Southern Norway
(Master thesis, 2018)Alpine vegetation has been the main focus for many botanists during decades and it has been shown that snow is one of the most important variables explaining vegetation patterns in mountain ecosystems. However, other ... -
Klima & fenologi. Epleblomstring vs. varmesum
(Master thesis, 2017)Fenologi er studiet av de periodiske begivenhetene i dyr eller planters livssyklus, som påvirkes av miljøet. Fenologiske faser reflekterer klimaets karakteristikk; intervallene for de ulike periodiske begivenhetene er nært ... -
Large-scale geographical effect of isolation on adult sex ratios in the rock ptarmigan (Lagopus muta)
(Master thesis, 2018)Recent advances in sex ratio theory show that increased habitat isolation might be causing male-biased adult sex ratios (ASRs) in avian populations. This has raised concerns, since skewed ASRs are frequently seen in small ... -
Prevalence of tick borne-encephalitis virus (TBEV) and phylogeographic structure of its vector Ixodes ricinus
(Master thesis, 2017)Ixodes ricinus is the most common vector in Europe and it is the primary vector for tick-borne encephalitis virus (TBEV) in Norway. Tick-borne encephalitis (TBE) cases have been reported yearly from Norway since the first ... -
Redd Site Micro-Habitat Selection and Quantitative Analyis for Large Brown Trout in the Tokkeåi River Telemark, Norway
(Master thesis, 2018)The study of redd site microhabitat selection is very important for successful conservation and management of large brown trout. Number of redds is quantified by several reports before but this research has done microstudy ... -
Sand temperatures at sea turtle nesting beaches at the Pacific coast of Guatemala
(Master thesis, 2020)The climate is changing, bringing extremities such as increased periods of rainfall, but also draughts and warming temperatures. There are several species with presumed little capacity to adapt to climate changes, such as ... -
Seasonal and spatial variation in the macroparasite fauna of Arctic charr (Salvelinus alpinus L.) in Lake Norsjø, South-Eastern Norway
(Master thesis, 2019)Within freshwater systems, several factors contribute to aggregated distributions of parasites in fish. Niche segregation, individual feeding preferences, sex of the host, and water temperature are all examples of such ... -
Selection of aquatic vegetation in river habitats by Eurasian beaver (Castor fiber) in South-Eastern Norway
(Master thesis, 2020)Habitat selection in animals is evident when the choosing of habitat is disproportionate to its availability, usually when habitat characteristics differ in quantity and quality. A very important factor of their use is the ... -
Short-term effects of bio-logging on body mass and growth of a semi-aquatic mammal, the Eurasian beaver (Castor fiber)
(Master thesis, 2020)Bio-logging is a popular method to collect scientific data in the field of animal ecology. The presumption is that bio-logging should allow the study of animals with only minor disturbance to their natural behaviour and ... -
The surface albedo of three lichen species (Flavocetraria nivalis, Cladonia stellaris, Cetraria islandica) and crowberry (Empetrum nigrum), and the influence of zenith angle, clouds and aspect
(Master thesis, 2020)The surface albedo of vegetated surfaces can influence the climate through the fraction of the solar radiation that is reflected back to the atmosphere. In this study, I have measured the surface albedo of three lichen ... -
Vertical distribution of ticks in southern Norway
(Master thesis, 2018)Due to climatic changes, plant and animal species have expanded their range vertically. One might therefore expect to find species at a higher elevation point than usual. By using both live and lethal traps, small mammals ...