Browsing Biologisk institutt ( -2012) by Title
Now showing items 263-282 of 406
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(Master thesis / Masteroppgave, 2007)According to the differential allocation hypothesis, an individual will invest more in an offspring when mated to a high than low qality mate. The blue/green eggshell coluration of pied flycatcher (Ficedula hypoleuca), has ...
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(Master thesis / Hovedoppgave, 2006)The behaviour of a monoalkyl quaternary ammonium antioxidant in seawater (0-34 psu) has been studied. A simulating study of quaternary ammonium salt (QAS) in an environmental setting was carried out by use of two different ...
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(Doctoral thesis / Doktoravhandling, 2010)Rødkinnet spyflue (Calliphora vicina) er et alvorlig skadedyr i norsk tørrfiskproduksjon. I dårlige år forårsaker insektene et økonomisk tap som overskrider 10 millioner kroner. Problemene oppstår når fluene legger egg på ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2012)Background Calpains are Ca2+-dependent cysteine proteases that participate in a range of crucial cellular processes. Dysfunction of these enzymes may cause, for instance, life-threatening diseases in humans, ...
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(Master thesis / Masteroppgave, 2008)Photosystem II (PSII) inhibitors are ubiquitous in costal areas around the world. Changes in chlorophyll fluorescence have been seen in plants exposed to low concentrations of PSII inhibitors in laboratory experiments. Saw ...
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(Master thesis / Masteroppgave, 2010)Environmental estrogens are long known to interfere with neurological, reproductive, cardiovascular and musculoskeletal system of human-beings and animals. Chemicals like bisphenol-A and phthalates are just two of many ...
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(Master thesis / Masteroppgave, 2008)The MDM2 protein, a p53 inhibitor, is involved in cell cycle control and apoptosis. MDM2 may promote tumorigenesis when over expressed, amplified or mutated. The expression of MDM2 has been shown to be modified by some ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2012)Background Pockmarks (depressions in the seabed) have been discovered throughout the world’s oceans and are often related to hydrocarbon seepage. Although high concentrations of pockmarks are present in ...
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(Master thesis / Hovedoppgave, 2007)Abstract In order to investigate the effect of different polluting agents to fungi, there is an obvious need for methods for estimating fungal growth. Given that the traditional methods are not accurate and efficient enough, ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2011)
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(Master thesis / Masteroppgave, 2009)
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Microsatellite variation in two small and isolated populations of the endangered Ethiopian wolf (Canis simensis)Restricted Access (Master thesis / Masteroppgave, 2008)Summary The genetic concerns in conservation biology arise from the deleterious effects of small population size, which is a consequence of loss of genetic diversity through genetic drift and inbreeding. The endangered ...
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Migration patterns and taxonomy of Dryas octopetala L. in the North Atlantic regionRestricted Access (Master thesis / Masteroppgave, 2010)The climatic fluctuations of the Quaternary have greatly influenced the distribution, composition and genetic structure of plant populations. Dryas octopetala sensu lato is an arctic-alpine plant belonging to a circumpolar ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2012)The forage-maturation hypothesis (FMH) states that herbivores migrate along a phenological gradient of plant development in order to maximize energy intake. Despite strong support for the FMH, the actual relationship between ...
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(Master thesis / Masteroppgave, 2010)Around 11000 years ago the first domesticated mammals emerged in the Fertile Crescent. Over time, these animals spread to fertile regions both to the east and west of their domestic centre of origin. By 6000 BP, animal ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2010)Background Human cases of plague (Yersinia pestis) infection originate, ultimately, in the bacterium's wildlife host populations. The epidemiological dynamics of the wildlife reservoir therefore determine ...
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(Master thesis / Masteroppgave, 2008)I dette studiet undersøkte jeg overlevelsestrender hos elgkalver og voksne elgkuer på Koppang i Hedmark fylke, sør-øst i Norge. Ulv var tilstede i området det meste av studieperioden, men antall ulveflokker endret seg noe ...
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(Master thesis / Masteroppgave, 2008)Divergent selection pressures, induced by variations in environmental conditions, can be expected to favour different phenotypic expressions. Different populations show thus often local adaptations that could be attributed ...
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(Master thesis / Masteroppgave, 2012)The lack of empirical knowledge on how marine reserves should be effectively designed has impeded their extensive implementation as fisheries management tools. While current knowledge is largely based on computer models, ...
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(Master thesis / Masteroppgave, 2008)The Semi-collared flycatcher (Ficedula semitorquata) is a member of the black-and-white flycatcher species complex. It is poorly studied, rare, and is currently classified as “near threatened”, in the IUCN red lists of ...