Doctoral theses (INA)
Unless otherwise stated on the individual theses, the works in this collection are licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Recent Submissions
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Game vertebrate responses to rural populations in neotropical protected areas
(PhD Thesis;2016:36, Doctoral thesis, 2022-11-15)Medium- to large-bodied vertebrates are of critical importance to the integrity of natural ecosystems, sustaining the composition and structure of plant and faunal communities and the associated ecosystem services. Through ... -
Nature-based tourism and the role of aesthetic dimensions
(PhD Thesis;2015:29, Doctoral thesis, 2022-11-15)The overall goal of the thesis is twofold. First, it aims to increase knowledge of aesthetics in nature-based tourism and to develop certain aesthetic dimensions in such a context. Second, it aims to increase knowledge of ... -
Sustainable tourism development in a Norwegian national park area : exploring social aspects
(PhD Thesis;2011:71, Doctoral thesis, 2011)Vast areas have been subject to an active nature protection policy in Norway over the past decades. Sixteen per cent of the land mass on the mainland is now protected in one way or another, and national parks take up the ... -
Invasion potential and host suitability for selected bark- and wood-boring insect pests
(PhD Thesis;2016:72, Doctoral thesis, 2016)Introduction of nonnative species is often a by-product of increasing global trade. Some nonnative species may reach extremely high population densities, deplete resources and cause extensive economic and ecological damage ... -
Modeling integration of renewable energy sources into Inland Norway energy system
(PhD Thesis;2016:67, Doctoral thesis, 2020-11-24)Increasing attention to climate change causes and impacts, and the fact that the world owns limited energy resources, have tremendously increased the awareness of countries towards sustainable energy production and ... -
Modeling hourly energy consumption in Norwegian buildings
(PhD Thesis;2016:91, Doctoral thesis, 2016)Growing world population, unabated use of fossil fuels, and economies aiming at continuous growth exhaust the planet’s natural resources and add to an augmented greenhouse effect. Besides limiting population growth in less ... -
Modelling height, height growth and site index from national forest inventory data in Norway
(PhD Thesis;2013:62, Doctoral thesis, 2013)The present study aimed to develop dominant height growth models, site index prediction models, individual tree height growth models, and height-diameter models using Norwegian national forest inventory (NFI) data. Data ... -
Economic perspectives of market integration and demand flexibility within a smart grid dominated power sector
(PhD Thesis;2015:56, Doctoral thesis, 2020-11-19)The developments related to integration of renewable energy sources, smart grid and market liberalization make the transition of the power system to a new state inevitable. This PhD work aims to analyze some of the market ... -
Drivers of the diversity and distribution of wild bees in a species poor region
(PhD Thesis;2016:23, Doctoral thesis, 2020-11-13)Bee diversity is declining globally. On a European scale, roughly 10% of the species are considered threatened, but the number may be even higher. The threatened status of bees depends on both the taxonomic and spatial ... -
Historic range of variability in the fire regime of a Fennoscandian boreal forest : the Trillemarka-Rollagsfjell Nature Reserve
(PhD Thesis;2015:3, Doctoral thesis, 2020-11-13)Fire is the principal natural disturbance process in the boreal forest. Thus, knowledge about the historical fire regime is essential for understanding present day forest ecosystems, which in turn is important for implementing ... -
Fire dynamics in savanna woodlands of Tanzania : spatial and temporal patterns and relationships with woody species
(PhD Thesis;2016:26, Doctoral thesis, 2020-11-13)Fire is an important ecological factor that influence the composition, structure and distribution of tropical savannas. Fire has been part of tropical savannas throughout recorded history. These savannas experience more ... -
Economic analysis of carbon sequestration and storage in Tanzanian forests
(PhD Thesis;2015:81, Doctoral thesis, 2020-11-10)Tropical deforestation is among the principal causes of emissions of carbon dioxide (CO2). Nevertheless, tropical forests play an important role in regulating global climate by serving as carbon reservoirs. This has led ... -
Genetic structure and gene flow in a continuously distributed large terrestrial carnivore : the brown bear (Ursus arctos) in Northern Europe
(PhD Thesis;2015:72, Doctoral thesis, 2020-11-10)The aim of this thesis was to investigate large scale population structure and gene flow in the Northern European brown bear (Ursus arctos). Brown bears were reduced in numbers to near extinction during recent centuries ... -
Renewable energy in Northern European power markets : effects, challenges and integration options
(PhD Thesis;2015:71, Doctoral thesis, 2020-11-10)The Northern European power system is currently experiencing an extensive growth in production from renewable energy sources (RE), which is expected to continue in the coming decades. Due to the variable, uncertain and ... -
Characterizing individual tree biomass for improved biomass estimation in Norwegian forests
(PhD Thesis;2015:60, Doctoral thesis, 2020-11-10)Accurate estimates of tree biomass are necessary in order to realize climate change mitigation strategies such as large-scale carbon accounts of sources and sinks through time and biomass stocks for bioenergy. Biomass is ... -
Estimation of biomass in tropical rainforest using airborne laser scanning
(PhD Thesis;2015:12, Doctoral thesis, 2019-01-08)Forest inventories based on field sample surveys, supported by auxiliary remotely sensed data, have the potential to provide transparent and confident estimates of forest carbon stocks required in climate change mitigation ... -
Forests and woodlands of Tanzania : interactions between woody plant structure, diversity, carbon stocks and soil nutrient heterogeneity
(PhD Thesis;2015:53, Doctoral thesis, 2019-01-04)In recent years, structural components such as woody species richness, diversity, canopies and non-woody lifeforms in tropical forests and woodlands have experienced increasing rates of degradation and deforestation due ... -
Integrating life cycle assessment and forest modelling for environmental and economic assessment of forest based bioenergy in Norway
(PhD Thesis;2015:11, Doctoral thesis, 2018-12-19)There is a growing interest in bioenergy, both nationally and internationally, due to the increasing emissions of greenhouse gases. The Norwegian forest growing stock is increasing and can be used to produce a range of ... -
Effects of climate, historical logging and spatial scales on beetles in hollow oaks
(PhD Thesis;2016:90, Doctoral thesis, 2016)Veteran trees are keystone structures and important biodiversity habitats, but they are declining on a global scale. In Europe, old oaks (Quercus spp.) are one of the most important habitat trees for biodiversity, yet the ... -
The Norwegian market for natur based tourism products : characteristics and implications for segmentation and product development
(PhD Thesis;2011:54, Doctoral thesis, 2011)Nature based tourism is often considered as an important area for rural municipalities when traditional industries such as agriculture, forestry and manufacturing has been downgraded and rationalised because they are no ...
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