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norskFakultet for biovitenskap, fiskeri og økonomi
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Handelshøgskolen ved UiT [748]
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Warming and CO2 enhance arctic heterotrophic microbial activity
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-03-20)Ocean acidification and warming are two main consequences of climate change that can directly affect biological and ecosystem processes in marine habitats. The Arctic Ocean is the region of the world experiencing climate change at the steepest rate compared with other latitudes. Since marine planktonic microorganisms play a key role in the biogeochemical cycles in the ocean it is crucial to ... -
Populasjonssykluser hos hare – drevet av rovdyr og spesielt gaupe
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-06-27)Snøskohare – og gaupesyklusene i det boreale Nord-Amerika er et av de best kjente eksempler på populasjonssykluser. Sammenlignet med andre sykliske arter har denne syklusen en relativ konstant periode på 9–10 år. Haretettheten varierer typisk 20–30 ganger mellom topp- og bunnår. Mye økologisk forskning har ved hjelp av forskjellige metoder forsøkt å avdekke årsakene til snøskoharesyklusene, også med ... -
Hypoxia Inducible Factor 1α Inhibits the Expression of Immunosuppressive Tryptophan-2,3-Dioxygenase in Glioblastoma
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-12-04)Abnormal circulation in solid tumors results in hypoxia, which modulates both tumor intrinsic malignant properties as well as anti-tumor immune responses. Given the importance of hypoxia in glioblastoma (GBM) biology and particularly in shaping anti-tumor immunity, we analyzed which immunomodulatory genes are differentially regulated in response to hypoxia in GBM cells. Gene expression analyses ... -
A Multi-Pathogen Screening of Captive Reindeer (Rangifer tarandus) in Germany Based on Serological and Molecular Assays
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-12-20)Captive reindeer in German zoos and wildlife parks live outside their natural geographic range and are exposed to a variety of viral, bacterial and protozoan pathogens, some host-specific and some which they are not exposed to in their native habitat. Reindeer blood samples and ticks collected in 2013 from 123 reindeer at 16 different zoological facilities were available from a previous study. The ... -
When spring ephemerals fail to meet pollinators: Mechanism of phenological mismatch and its impact on plant reproduction
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-06-12)The flowering phenology of early-blooming plants is largely determined by snowmelt timing in high-latitude and high-altitude ecosystems. When the synchrony of flowering and pollinator emergence is disturbed by climate change, seed production may be restricted due to insufficient pollination success. We revealed the mechanism of phenological mismatch between a spring ephemeral (<i>Corydalis ambigua</i>) ... -
Maternal Photoperiodic Programming: Melatonin and Seasonal Synchronization Before Birth
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-01-10)This mini-review considers the phenomenon of maternal photoperiodic programming (MPP). In order to match neonatal development to environmental conditions at the time of birth, mammals use melatonin produced by the maternal pineal gland as a transplacental signal representing ambient photoperiod. Melatonin acts via receptors in the fetal pituitary gland, exerting actions on the developing medio-basal ... -
Identifying climate-sensitive infectious diseases in animals and humans in Northern regions
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-11-14)<i>Background</i> - General knowledge on climate change effects and adaptation strategies has increased significantly in recent years. However, there is still a substantial information gap regarding the influence of climate change on infectious diseases and how these diseases should be identified. From a One Health perspective, zoonotic infections are of particular concern. The climate in Northern ... -
Pestivirus Infections in Semi-Domesticated Eurasian Tundra Reindeer (Rangifer tarandus tarandus): A Retrospective Cross-Sectional Serological Study in Finnmark County, Norway.
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-12-26)Members of the Pestivirus genus (family <i>Flaviviridae</i>) cause severe and economically important diseases in livestock. Serological studies have revealed the presence of pestiviruses in different cervid species, including wild and semi-domesticated Eurasian tundra reindeer. In this retrospective study, serum samples collected between 2006 and 2008 from 3339 semi-domesticated Eurasian reindeer ... -
Nature-based tourism, resource dependence, and resilience of Arctic communities: framing complex issues in a changing environment
(Journal article; Tidsskriftartikkel; Preprint; Manuskript, 2019-05-16)Current research on tourism in the Arctic has focused largely on the extent, location, and type of tourism activities that occur in the region. Recently, challenges have been identified that the tourism industry is likely to face in the wake of global changes, including climate change. Related research, conducted within and outside of the Arctic, suggests that rural communities can become economically ... -
Wildlife tourism through the co-creation lens
(Journal article; Tidsskriftartikkel; Preprint; Manuskript, 2019-05-03)This study reflects on the conceptualisation of wild animals as co-creators. Its purpose is to encourage reflection about the role of animals in wildlife tourism. Therefore, to this end – and in the belief that diversity and creativity are important elements in critical thinking – the study was developed by a research team with diverse professional backgrounds. It adopts a fictional methodological ... -
Absorptive Capacity, Co-creation, and Innovation Performance: A Cross-country Analysis of Gazelle and Nongazelle Companies
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-12-09)<i>Purpose</i> - The purpose of this paper is to examine the effect of absorptive capacity (ACAP) and co-creation on innovation performance (INN).<p> <p><i>Design/methodology/approach</i> - The authors use survey data from Swedish and Norwegian companies (<i>n</i>=1,102) and establish a cross-national equivalence between Sweden and Norway.<p> <p><i>Findings</i> - The subsequent structural ... -
Flexibility in a changing arctic food web: Can rough-legged buzzards cope with changing small rodent communities?
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-08-07)Indirect effects of climate change are often mediated by trophic interactions and consequences for individual species depend on how they are tied into the local food web. Here we show how the response of demographic rates of an arctic bird of prey to fluctuations in small rodent abundance changed when small rodent community composition and dynamics changed, possibly under the effect of climate ... -
Absorptive capacity and energy efficiency in manufacturing firms – An empirical analysis in Norway
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-07-02)Increased energy efficiency (EE) in manufacturing firms is important for confronting climate challenges. However, the information barrier is considered a major restriction on EE innovation. Building on the theory of absorptive capacity and the current EE literature, we argue that this barrier relates to firms' ability to assimilate and exploit information. Thus, this study's objective is to analyse ... -
Hiding in the background: community-level patterns in invertebrate herbivory across the tundra biome
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-09-03)Invertebrate herbivores depend on external temperature for growth and metabolism. Continued warming in tundra ecosystems is proposed to result in increased invertebrate herbivory. However, empirical data about how current levels of invertebrate herbivory vary across the Arctic is limited and generally restricted to a single host plant or a small group of species, so predicting future change remains ... -
The radiation exposure of fish in the period of the Techa river peak contamination
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-02-10)Waterborne radioactive releases into the Techa River from the Mayak Production Association in Russia during 1949–1956 resulted in downstream contamination of the river ecosystem. The discharged liquid waste contained both short-lived isotopes (95Zr, 95Nb, 103,106Ru, 141,144Ce, 91Y, 89Sr and 140Ba with half-life from 3 days to 1.02 years) and the long-lived 90Sr and 137Cs (half-life - 28.79 y and ... -
Sticky mucilages and exudates of plants – putative microenvironmental design elements with biotechnological value
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-09-24)Plants produce a wide array of secretions both above and below ground. Known as mucilages or exudates, they are secreted by seeds, roots, leaves and stems and fulfil a variety of functions including adhesion, protection, nutrient acquisition and infection. Mucilages are generally polysaccharide‐rich and often occur in the form of viscoelastic gels and in many cases have adhesive properties. In some ... -
GDPR – til glede eller besvær? En kvalitativ case studie av hvordan ledere og ansatte i en lokalbank i Nord-Norge håndterer GDPR
(Master thesis; Mastergradsoppgave, 2019-11-28)Våren 2018 gjorde en ny personvernlov, General Data Protection Regulation sitt inntog og ble gjeldende for alle organisasjoner i EU. Loven skal bidra til at kundenes personopplysninger ivaretas på best mulig måte gjennom sikker og trygg innsamling, behandling, lagring og sending. Loven medfører derfor at organisasjoner er nødt til å endre rutiner og arbeidsmetoder. En organisasjonsendring slik som ... -
Fra liten gründerbedrift, til stor vekstbedrift – hva skyldes suksessen? Lederne i KOA sine betraktninger – en kvalitativ casestudie
(Master thesis; Mastergradsoppgave, 2019-11-26)I denne masteroppgaven har jeg tatt for meg hva ledelsen i KOA har vektlagt i prosessen fra liten gründerbedrift til stor vekstbedrift. Jeg har med utgangspunkt i teori om organisasjoners livssyklus (vekstfaseteori) tatt for meg de naturlige endringene i lederutfordringene når KOA vokste, og hvordan ledergruppa løste disse utfordringene. Videre har jeg med utgangspunkt i forskning rundt faktorer som ... -
Norwegian cod by-products in the Chinese market
(Master thesis; Mastergradsoppgave, 2019-05-14)This thesis is dedicated to studying the main factors which could affect Norwegian cod by-products in the Chinese market. Norway has been recognized as one of the biggest seafood countries in the world while China shows a preference towards Norwegian seafood. And due to the relationship has been better in the past few years between these two countries, it is worthy to discuss Norwegian seafood ... -
Assessing the effect of predator control on an endangered goose population subjected to predator-mediated food web dynamics
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-01-29)<ol> <li>Assessing the effectiveness of conservation actions to halt population declines is challenging when confounded by other factors. We assessed whether culling of red fox, a predator currently increasing in number in the sub‐Arctic, contributed to recent recovery of the critically endangered Fennoscandian population of Lesser White‐fronted Goose <i>Anser erythropus</i>, while controlling for ...
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