Doctoral theses (INA): Nye registreringer
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Local and systemic defence responses in trees against pathogenic fungi : differences revealed at the transcriptional level
(PhD Thesis;2011:43, Doctoral thesis, 2011)Forest trees dominate the earth surface and has special place in the economy and ecology of the planet. Due to the long life span of woody trees they are challenged by the abiotic and biotic factors. Over the long history ... -
Angling tourism and landowner based management of Atlantic salmon stocks in the Trondheim fjord region of Norway
(PhD Thesis;2011:26, Doctoral thesis, 2011)Angling for Atlantic salmon (Salmo salar L.) is a popular recreational activity and provides income for Norwegian landowners holding fishing rights. Abundance and distribution of salmon have however declined markedly during ... -
Analyses of the use of the Norwegian forest sector in climate change mitigation
(PhD Thesis;2011:28, Doctoral thesis, 2011)The forest sector plays important roles in the global carbon cycle. Firstly, the global carbon cycle. Firstly, the global carbon storage in forest biomass and soil is of a considerable size, and the total carbon sequestration ... -
Improving forest inventory and monitoring by combining remotely sensed three-dimensional and spectral information
(PhD Thesis;2011:22, Doctoral thesis, 2011)Forest inventory has benefited from remote sensing for more than 80 years. Spectral information from aerial cameras has been the dominant data source during this period. However, over the past decade the use of three-dimensional ... -
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 ... -
Ecology, conservation and bioactivity of food and medicinal plants in East Africa
(PhD Thesis;2010:29, Doctoral thesis, 2010)In East Africa 70-80 % of the population is subsistence farmers. The rural health system is often poorly equipped both with personnel and medicines, and many depend on the use of medicinal plants for their primary health ... -
Woody species regeneration and diversity in a seasonally dry forest in northeastern Thailand
(PhD Thesis;2010:41, Doctoral thesis, 2010)Forest communities are complex because many factors are associated with the spatial patterns of woody species. The main objective of this thesis is to provide a better understanding of how woody species composition and ... -
Bio-economic aspects of moose : forage interactions - gains and compromises of interdisciplinary research
(PhD Thesis;2010:27, Doctoral thesis, 2010)Interdisciplinary research is a prerequisite for applied progress in natural resource management. Still, most relevant studies are done by economists alone, and not in collaboration with ecologists. I discuss the ideological ... -
Afar pastoralists in a changing rangeland environment
(PhD Thesis;2010:33, Doctoral thesis, 2010)Pastoralists have been using arid and semi-arid rangelands to produce their livelihood outputs through livestock production for centuries. However, recent changes in land use and associated impacts on biodiversity and ... -
Lichen-gastropod interactions : Chemical defence and ecological consequences of lichenivory
(PhD Thesis;2010:2, Doctoral thesis, 2010)Herbivory are considered a significant factor regulating plant communities. Some mammals, e.g. reindeers, substantially influence lichen-dominated communities. The impact on lichens posed by invertebrate grazers is less ... -
Life cycle assessment of mountain forest wood fuel supply chains : case studies from Norway and Italy
(PhD Thesis;2011:57, Doctoral thesis, 2011)Concerns about the fast growth in greenhouse gas emissions have encouraged several countries to increase their use of renewable energy. According to the EU’s Renewable Energy Directive (RED), 20% of all the energy production ... -
Liquid water absorption in wood cladding boards and log sections with and without surface treatment
(PhD Thesis;2010:6, Doctoral thesis, 2010)Water absorption in wood in service is of great importance both because of the resulting dimensional changes of the wood and because of the risk of deterioration by microorganisms at wood moisture content levels above 20 ... -
Aesthetic experiences and behaviour in nature-based tourism
(PhD Thesis;2014:61, Doctoral thesis, 2014)With the increasing focus on aesthetic experiences and symbolic values of products and services, this thesis addresses central aesthetic dimensions in nature-based experiences, and how they are linked to tourist behaviour. ...