Blar i Master’s theses (MINA) på emneord "VDP::Mathematics and natural science: 400"
Viser treff 1-20 av 31
-
An evaluation of the efficiency of survey methods to monitor large mammals in Cusuco National Park, Honduras
(Master thesis, 2017)Field sign surveys and camera trap surveys are frequently used in the tropics as the preferred survey technique to monitor large terrestrial mammal communities. However, these methods vary in the efficiency of detecting ... -
Analysing forests naturalness in southern Norway using airborne laser scanning
(Master thesis, 2021)Biological and ecological important areas and species are in increasing focus now. Earlier protected areas have mostly excluded productive forest areas in Norway. The added focus on these areas combined with an increased ... -
Assessing the effect of environmental variables on microhabitat selection and distribution for seven amphibian species in Colombia using in-situ and MaxEnt approaches
(Master thesis, 2018)Colombia is recognized as one of the most biologically diverse places in the world with a high level of endemism. In addition, it is the country with the highest number of amphibian species, but also the highest number of ... -
Bats, insects and weather : spatial-temporal trends on a boreal forest wind facility in Norway
(Master thesis, 2021)Bats and insects are valuable indicators of ecosystem health. As both organisms are potential bioindicators, it is important to understand how they interact with each other and their environment. Bats and insects are facing ... -
Birds on camera : assessing avifaunal detections by camera traps in the Amazon
(Master thesis, 2021)Camera traps have become an increasingly useful tool for biodiversity surveys in tropical forests, but most of these studies focus on larger-bodied terrestrial vertebrates, particularly mammals. To date few camera trap ... -
Closing the nutrient loop with ecological sanitation in Nepal
(Master thesis, 2020)Unsafe sanitation is one of the world’s largest health and environmental problems. Many countries face great challenges to provide adequate sanitation while leaving their people at risk of water, sanitation, and health ... -
Comparing distribution of willow psyllids (Cacopsylla spp.) on Salix lapponum in 2018 with 1995 along an alpine altitudinal gradient
(Master thesis, 2019)The psyllid (Cacopsylla spp.) population on Salix lapponum in the alpine areas of southern Norway, in an altitudinal gradient between Haugastøl and Finse, were thoroughly studied in 1995. The results were presented and ... -
Concentration ratios for radionuclides and stable analogues in Rogaland, Norway
(Master thesis, 2018)Norway may be exposed to radioactive deposition from several potential sources due to the country`s geographical location and meteorological conditions (Bartnicki et al., 2016; Klein & Bartnicki, 2018) and it has been ... -
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 ... -
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 ... -
Effect of autumn warming on the rate of senescence in Svalbard plants : an experimental approach with relevance for Svalbard reindeer
(Master thesis, 2022)Phenology is a biological trait sensitive to global warming. Climate change scenarios predict a three-fold increase in temperature and altered rainfall for polar regions. The Svalbard Archipelago, situated at 780 North, ... -
Effect of macrophyte removal on CO2 emissions in the river Otra, Norway
(Master thesis, 2021)The main goal of this study is to examine how macrophyte removal affects CO2 emissions in rivers with a secondary aim of quantifying CO2 concentrations and emissions in the river over the course of 24 hours. The study was ... -
Effect of nitrogen fertilization on decomposition in boreal forest
(Master thesis, 2021)Anthropogenic activities have resulted in escalating deposition of nitrogen in many forms that impact several aspects of ecosystem especially lying on boreal region where N is a limiting factor for tree growth. Although N ... -
Effects of gut microbiota composition on vitellogenin expression in honeybees
(Master thesis, 2020)The relationship between animals and their gut microbiota is one of the most important symbiotic relationships in nature. The western honeybee, Apis mellifera, has received particular attention in microbiota research because ... -
Effects of repeated captures on Svalbard reindeer (Rangifer tarandus platyrhyunchus) : implications for animal welfare and scientific bias
(Master thesis, 2021)Capturing and marking animals is an essential component of wildlife research. However, data gathered using invasive methods may lead to scientific bias and compromise animal welfare. It is therefore important to evaluate ... -
Estimating global demand for coniferous sawnwood taking uncertain variables into account
(Master thesis, 2019)This thesis aims at providing new estimates regarding the global demand for coniferous sawnwood. Individual and representative elasticities of demand for the sample of 92 countries that represented 97 % of the global ... -
Estimation of water access and contaminant risks at the Nyenga foundation in Uganda
(Master thesis, 2020)Nyenga foundation is a voluntary foundation located on the outskirts of Nyenga village in Uganda. The foundation is running a medicine center, a primary school and are working with engaging the local community in the making ... -
Factors contributing to human injuries and fatalities inflicted by brown bears (Ursus arctos) in Russia, 1932-2017
(Master thesis, 2018)In this thesis, I have compiled, summarized, and reviewed 322 cases of people killed and injured by brown bears (Ursus arctos) in Russia from 1932 to 2017. The focus was primarily on 256 bear-induced human casualties ... -
Hiking in Rondane wild reindeer range : human trail use and the effect of removing trail marks
(Master thesis, 2020)Habitat loss caused by human disturbance is one of the largest threats to the wild reindeer (Rangifer tarandus tarandus) in Norway. Increasing infrastructure development and human use of marked trails and tourist cabins ... -
Hvordan ivaretas hensynet til naturmangfold i bit-for-bit nedbyggingen av strandsonen : et casestudie av hvordan miljøprinsippene i naturmangfoldloven (§§ 8–10), begrunnes i dispensasjonsvedtak i strandsonen i Mandal kommune
(Master thesis, 2021)Arealendring er den viktigste årsaken til at arter er på rødlisten. I dag er ni av ti arter truet på grunn av arealendringer. Sjøfugl har størst nedgang blant arter i marine økosystemer. Det har siden 1965 vært byggeforbud ...