Ecology
Recent Submissions
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Spatio-temporal foraging behavior, habitat selection and impacts of bio-logging on Eurasian beavers, Castor fiber
(Doctoral dissertations at the University of South-Eastern Norway;126, Doctoral thesis, 2022-06-28)Wild animals deal with a dynamic landscape consisting of both food resources and threats that vary across space and time. This thesis investigated spatio-temporal foraging behavior and habitat selection of Eurasian beavers ... -
Modelling and characterization of climate, environment, and human impact during the Holocene and Eemian using an Interactive Physical Downscaling
(Doctoral dissertations at the University of South-Eastern Norway;199, Doctoral thesis, 2024-06-26)The study of the past climate is important as it provides valuable information about how the earth’s climate has changed over long timescales and helps scientists to better understand natural climate processes and distinguish ... -
Tick-borne encephalitis virus: an emerging virus in Scandinavia
(Doctoral dissertations at the University of South-Eastern Norway;190, Doctoral thesis, 2024-05-14)Tick-borne encephalitis virus (TBEV) causes Tick-borne encephalitis (TBE) which is an infection of the central nervous system that can lead to encephalitis. TBE cases are increasing in Scandinavia over the last few decades ... -
Impact of climate change and habitat degradation on two endangered reptiles: the Guatemalan beaded lizard and the Olive Ridley sea turtle
(Doctoral dissertations at the University of South-Eastern Norway;165, Doctoral thesis, 2023-06-15)Climate change and habitat degradation are the main threats to non-avian reptiles. Non-avian reptiles are a clade of ectothermic vertebrates that include turtles, alligators, lizards, amphisbaenians, and snakes. As ectotherms, ... -
Territorial movement behaviour in the Eurasian beaver
(Doctoral dissertations at the University of South-Eastern Norway;162, Doctoral thesis, 2023-06-09)It can be challenging to observe and quantify natural behaviour in wild free-ranging animals. Species that are reclusive or exploit multiple environments, such as semi-aquatic mammals, may be particularly difficult to ... -
The ecology of phytoplankton with focus on cyanobacteria and of aquatic macrophytes in selected lakes and reservoirs in Myanmar
(Doctoral dissertations at the University of South-Eastern Norway;153, Doctoral thesis, 2023-02-23)Myanmar’s freshwater systems are increasingly subjected to degradation, eutrophication, and anthropogenic impacts. The most visible effects of eutrophication in lakes and rivers are dense blooms of noxious, foul-smelling ... -
The effects of social, familial, and anthropogenic factors on dispersal-related space use and movement behavior in Scandinavian brown bear (Ursus arctos)
(Doctoral dissertations at the University of South-Eastern Norway;150, Doctoral thesis, 2023-01-19)Among mammals, dispersal is one of the most critical life phases whose outcomes have enormous consequences for survival and reproduction. However, there are several unknowns regarding dispersal and settlement decisions, ... -
Importance of air and soil temperatures for bioclimatic delimitations in Norwegian mountains
(Doctoral dissertations at the University of South-Eastern Norway;4, Doctoral thesis, 2018-06-18)Distribution limits of plants in relation to climatic variables have long interested ecologists. High latitudes and altitudes house distribution limits of forests, treelines, treeline ecotones and vascular plants in alpine ... -
The microbiology and geochemistry of a landfill-contaminated aquifer
(Doctoral dissertations at the University of South-Eastern Norway;107, Doctoral thesis, 2021-10-20)Thousands of aquifers worldwide have been polluted by landfill leachates and many more remain threatened. However, the ecology of these perturbed aquifers remained understudied. The current study incorporates aspects of ... -
Effects of training, age, gender and selected genes on aerobic endurance performance in cross-country skiing
(Doctoral dissertations at the University of South-Eastern Norway;91, Doctoral thesis, 2021-04-22)The main objective of this thesis was to investigate the effects of training, age, gender and selected genetic variants on aerobic endurance performance and training adaptations in well-trained cross-country skiers. The ... -
The effect of selected genetic variants, age, sex and training methods on physical activity, capability and trainability
(Doctoral thesis, 2021-02-12)The main objectives of this thesis were to investigate the role of selected genetic variants on physical activity (PA), capacity and trainability in homogenous cohorts from South-Eastern Norway. Two of the cohorts (Papers ... -
Arctic charr (Salvelinus alpinus) farming in southern Norway
(Doctoral dissertations at the University of South-Eastern Norway;85, Doctoral thesis, 2021-02-03)Arctic charr (Salvelinus alpinus) is a stenothermic cold-water fish with a circumpolar distribution. The species features large variations in life history, as populations are anadromous, riverine or lake dwelling. It occurs ... -
Naturen som arena for utforsking og læring av naturfaglege tema i barnehagen og i barneskulen
(Doctoral thesis, 2021-05-15)Barn lærer best når læringa tek utgangspunkt i noko barna sjølve er interesserte eller engasjerte i, og når dei får ta aktivt del i eigen læringsprosess. Naturen er ein arena som synest å stimulerer barn si nysgjerrigheit ... -
Altitudinal distribution and host-parasite relations of ticks in Norway
(Doctoral dissertations at the University of South-Eastern Norway;87, Doctoral thesis, 2021-03-05)With a warming climate and changes in land use during the last decades, ticks have been observed to occur at increasingly higher latitudes and altitudes in the northern hemisphere. With the range expansion of ticks comes ... -
Kontekst for læring. Nærmiljø som læringsarena i utdanning for bærekraftig utvikling
(Doktoravhandlinger ved Universitetet i Sørøst-Norge;23, Doctoral thesis, 2019-02-04)Verden i dag står overfor store miljømessige og sosiale utfordringer som får konsekvenser for framtidas samfunn, lokalt og globalt. Derfor vil det være av stor betydning å utdanne elever som både får nødvendige kompetanser ... -
Ecology of Alpine Lichen Heaths: Relationships Between Vegetation, Soil Temperature, and Edaphic Factors in Southern Norway
(Doctoral dissertations at the University of South-Eastern Norway;29, Doctoral thesis, 2019-03-01)Alpine lichen heaths are found on nutrient-poor and deep soils in the mountain plateaus in southern Norway. These are generally characterized by terricolous or so-called “mat-forming” lichens dominated by those in the ... -
The effects of harvest on the sociospatial and genetic structure of a solitary-living large carnivore, the brown bear Ursus arctos
(Doctoral dissertations at the University College of Southeast Norway;28, Doctoral thesis, 2017-10-20)Understanding the effects of harvest is integral for sustainable wildlife management and conservation. And yet, the focus of managers has predominantly been on the direct mortality of harvest, often ignoring the indirect ... -
Mercury in freshwater biota in southeastern Norway, with special emphasis on potential antagonistic effects of selenium on mercury bioaccumulation
(Doctoral dissertations at the University College of Southeast Norway;23, Doctoral thesis, 2017-10-06)Mercury (Hg), and in particular methylated Hg (methyl-Hg, MeHg), because of its high potential for bioaccumulation and biomagnification in aquatic food webs, generate health risks to both aquatic top predators and humans ... -
A systems biology approach to integrated molecular analysis in pancreatic and periampullary adenocarcinoma
(Doctoral dissertations at the University College of Southeast Norway;2, Doctoral thesis, 2016-04-13)Pancreatic and periampullary adenocarcinoma (PA) is a highly lethal disease, for which the mortality rate closely parallels the incidence rate. Most of the PA patients remain asymptomatic until the disease reaches an ... -
Observing animal behaviour and movement patterns remotely: A case study using bio-logging technology on free-ranging Eurasian beavers (Castor fiber)
(Doctoral dissertations at the University College of Southeast Norway;10, Doctoral thesis, 2017-02-24)Understanding animal behaviour is a fundamental part of biology and has been revolutionized by the invention of bio-logging units, which can be used to study wild animals in their natural habitats. In this thesis, tri-axial ...
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