Blar i Faculty of Environmental Sciences and Natural Resource Management (MINA) på dokumenttype "Doctoral thesis"
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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 ... -
The European energy transition : economic impacts on Nordic stakeholders in the energy system
(PhD thesis;2023:27, Doctoral thesis, 2023)This thesis assesses the economic impacts that the European energy transition towards net-zero carbon emissions has on Nordic power system stakeholders. The impacts of climate policies, the role of power system flexibility, ... -
Evaluation of primary rainbow trout (Oncorhynchus mykiss ) hepatocytes suitability as a screening assay for estrogen receptor agonists
(PhD Thesis;2016:47, Doctoral thesis, 2017-07-12)Regulatory legislations on chemicals have in recent years become more stringent, requiring more toxicological evaluation. The increased toxicological testing have resulted in a stronger effort to implement the 3Rs (Refinement, ... -
Exploring the link between phytoplankton and environmental stressors using lake sediments as archives : a study of Gonyostomum semen’s expansion in Norwegian lakes
(PhD Thesis;2021:45, Doctoral thesis, 2021)Phytoplankton communities are affected as a result of changing environmental conditions in boreal lakes due to global climate change and local human activities. One species currently undergoing change and expansion is the ... -
Exploring the regulation of denitrification and NO and N2O kinetics in Paracoccus denitrificans using simulation modelling
(PhD Thesis;2015:59, Doctoral thesis, 2017-07-12)In the environment, microbes frequently experience lack of oxygen. In response, certain microorganisms produce enzymes that enable them to respire molecules other than O2 (anaerobic respiration). (...) Denitrification is ... -
Fine-spatial radiation measurements for heterogeneous boreal–alpine and sub-alpine vegetation
(PhD Thesis;2022:37, Doctoral thesis, 2022)Net radiation constitutes the most important component shaping the climate in the lower atmosphere and the land surface below. The flux determines the amount of energy available for exchange as sensible and latent heat, ... -
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 ... -
Flooding matters : structure, above-ground biomass, and carbon stocks of an Amazonian forestscape
(PhD Thesis;2021:50, Doctoral thesis, 2021)Amazonia accounts for approximately half of the world’s tropical forests and one quarter of all terrestrial species. The forests retain and circulate large amounts of water and store carbon. Amazonia is thus extremely ... -
Food provisioning in a generalist predator : selecting, preparing, allocating and feeding prey to nestlings in the Eurasian kestrel (Falco tinnunculus)
(PhD Thesis;2010:36, Doctoral thesis, 2010)Prey handling behaviour is important for prey selection, but are poorly known for raptors. Therefore, selection and handling of prey by European kestrels (Falco tinnunculus) was studied by observing prey transfer outside ... -
Forest disturbance and tree species elevation ranges in Costa Rica
(PhD Thesis;2021:99, Doctoral thesis, 2021)The role of disturbance in influencing interspecific competition and species persistence and distributions remains surprisingly unexplored. Disturbance may increase elevation ranges, especially at the lower range limits, ... -
Forestry and forest management in an uncertain environment : adaptation to climate change in Norwegian forestry
(PhD Thesis;2019:38, Doctoral thesis, 2019)The overall objective of this thesis is therefore to study whether, how, and why (not) risk and uncertainty related to climate change may (or may not) influence the forest management strategies of forestry decision-makers ... -
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 ... -
Functional traits across primary producer groups and their effects on micro-arthropod communities in alpine Norway
(PhD Thesis;2019:71, Doctoral thesis, 2019)The vegetation of alpine ecosystems, i.e. those above the elevation of the tree line, consists not only of vascular plants, but also of non-vascular primary producers such as lichens and bryophytes. The use of functional ... -
Functional traits and decomposition of lichens, bryophytes and vascular plants in an alpine ecosystem
(PhD Thesis;2019:44, Doctoral thesis, 2019)Functional traits influence how an organism responds to its environment and how this can affect ecosystem processes such as decomposition. The majority of trait-based studies have focused on vascular plants, while non-vascular ... -
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 ... -
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 ... -
Geochemistry and availability of barium (Ba) to plants grown in soils with ordinary and Ba-enriched mineralogy
(PhD Thesis;2016:71, Doctoral thesis, 2016)In recent years there has been an increasing interest for the use of crushed minerals and rocks as soil amendment and slow-release fertilizers in agriculture. Apatite-biotite-carbonatite (short form: carbonatite) rock from ... -
Herbivory and climate effects on plant defenses: an ecological and molecular approach
(PhD Thesis;2019:28, Doctoral thesis, 2019)Knowledge of plant defense responses and how they interact with biotic (e.g., herbivores) and abiotic (e.g., temperature) factors is of fundamental importance for understanding ecosystem functioning. Increases in temperature ... -
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 ... -
How green is the green shift? : the potential effects of a bioeconomy on ecosystem services in Nordic catchments
(PhD Thesis;2021:67, Doctoral thesis, 2021)In light of the increasing pressures from human activities on ecosystems and the global climate, the Nordic countries have decided that a green shift is necessary to ensure the future wellbeing of society. The transition ...