Now showing items 25-43 of 43
| Abstract: | Indigenous peoples, like the Sami of Fenno-Scandinavia, continue to be the object of museum display in ethnographic museums. Most of these exhibits focus predominantly on culture history via objects that reveal the quality and richness of indigenous cultures, with less emphasis on the political struggles that indigenous peoples are involved in. This paper is a reflection on the experiences in making a museum representation of a modern indigenous movement – the struggle of Sami in Norway for recognition and rights as an indigenous people. The project was meant not just to present a new way to represent indigenous peoples, but also to be designed as an argument in the ongoing ethnopolitical discourse on equity and difference in Sami- Norwegian relations |
| URI: | http://hdl.handle.net/10037/5046 |
| Abstract: | The objective of this chapter is to give an overview and analysis of the current trends and developments in biotechnology in aquaculture research and management. The technological developments along with structural changes in the aquaculture sector may affect access and intellectual property rights (IPR) regimes. These issues will be discussed in a wide perspective involving both short and long-term biological effects, ethical and other social aspects (economic, legal and political issues), including their partly inherent contradictions needing compromising for sustainable development. The chapter will focus on current biological challenges within aquaculture as a growing food production sector, with less emphasis on external effects such as environmental effects. Cases from farmed salmon and cod in Norway in addition to shrimp and tilapia in Asia will be highlighted. |
| URI: | http://hdl.handle.net/10037/4614 |
| Abstract: | The Norwegian population of the Common Guillemot Uria aalge has declined by > 95% since the 1960s, and is classified as critically endangered in the Norwegian Red List. Much of the recent decline has been attributed to reduced food availability, but without extensive documentation of adult diet. Instead, chick diet has been considered a proxy of adult diet during the breeding season in many Norwegian studies. Central place foraging theory, especially for single-prey loaders, however, predicts that this may not be so and this study compares directly the diet of adult and chick Common Guillemots during the breeding season at a colony in NE Norway. Whereas chicks were fed mainly capelin (Mallotus villosus) and sandeels (Ammodytes sp.), most of the adult diet consisted of the two youngest year classes of Gadidae, probably cod (Gadus morhua) and haddock (Melanogrammus aeglefinus). A successful ecosystem management of seabirds is dependent on a full understanding of how prey quality, abundance and availability influence seabird populations and their viability such that knowing the true diet of adult Common Guillemots has important implications in the modelling and management of the Norwegian populations. |
| URI: | http://hdl.handle.net/10037/3882 |
| Abstract: | Cowpox virus, which has been used to protect humans against smallpox but may cause severe disease in immunocompromised persons, has reemerged in humans, domestic cats, and other animal species in Europe. Orthopoxvirus (OPV) DNA was detected in tissues (lung, kidney, spleen) in 24 (9%) of 263 free-ranging Eurasian lynx (Lynx lynx) from Sweden. Thymidine kinase gene amplicon sequences (339 bp) from 21 lynx were all identical to those from cowpox virus isolated from a person in Norway and phylogenetically closer to monkeypox virus than to vaccinia virus and isolates from 2 persons with cowpox virus in Sweden. Prevalence was higher among animals from regions with dense, rather than rural, human populations. Lynx are probably exposed to OPV through predation on small mammal reservoir species. We conclude that OPV is widely distributed in Sweden and may represent a threat to humans. Further studies are needed to verify whether this lynx OPV is cowpox virus. |
| URI: | http://hdl.handle.net/10037/3897 |
| Abstract: | In this paper my aim is to read and understand the journal of Gerrit de Veer from the last journey of William Barents to the Arctic Regions in 1596 and the journal of captain Junge on his hunting trip from Tromsø to Svalbard in 1834.It is nearly 240 years between this to voyages. The first journal is known as the earliest report from the arctic era. Gerrit de Veer adds instructive copper engravings to his text and give us insight in the crews meeting with this new land. Captain Junges journal is found together with his dead crew in a house in a fjord nearby Ny-Ålesund and has no drawings, but word. Both of these journals may be read as sources of the knowledge and understanding of the polar region. They might also unveil the ideas of how to deal with and survive under the challenges that is given. In addition one can ask if the sources can tell us more about how men describe their challenges. Can the way they expressed themselves in the journals give us an understanding of masculinity? And not least help us to create good questions of the change in the ideas of masculinities which is said to follow the change in understanding of the wilderness. |
| URI: | http://hdl.handle.net/10037/4874 |
| Abstract: | Som et ledd i undertegnedes PhD-prosjekt “The consolidation of farming in northern Norway” ble det den 26.07.2012 gjort befaringer og mindre prøvegravninger på Flakstad Prestegård i Flakstad kommune. Stedet ligger helt nord på Flakstadøya på en sandstrandflate mellom fjellet og havet og rett nord for Flakstad kirke fra 1700-tallet. Jordsmonnet består av fin flygesand og preges der hvor det ikke har vært gjort utplanering av sandvoller |
| URI: | http://hdl.handle.net/10037/5118 |
| Abstract: | Global change is expected to lead to range shifts of plant species. The ecological mechanisms underpinning these shifts are currently not well understood. Here, we compared ecological responses possibly underlying southern range contraction and northern range expansion of Empetrum nigrum, a key species in northern heathlands, which may be related to global change. We hypothesized a negative response to warming in the ‘south’ (i.e. the Netherlands) and a positive response at the northern range margin (the tundra on Svalbard). Open top chambers (OTCs) were used to simulate global warming. In the ‘south’, OTC warming caused enhanced shoot growth and growth rate, biomass increment, advanced phenology, larger and heavier berries of Empetrum, while its growing season was extended by 75 days. Under OTC warming co-occurring Calluna vulgaris also showed an increased growing season length (by 98 days) as well as increased shoot growth rate and biomass growth, plant cover and height. Still, we found no evidence for increased competitiveness relative to Empetrum. In the ‘north’, Empetrum responded with increased shoot and biomass growth, enhanced berry development and ripening to warming. These responses exceeded those of co-occurring Cassiope tetragona with the exception of its biomass response. The direct and indirect ecological responses found do not readily explain the observed northward retreat of Empetrum at the southern range margin. The direct ecological responses found at its northern range margin are, on the other hand, in line with the increased occurrences of this species on Svalbard. |
| URI: | http://hdl.handle.net/10037/5052 |
| Abstract: | Since 1980, there has been large variation and a recent decline in the mass and body condition of Common Guillemot Uria aalge chicks departing from the nest site in NE Norway. This may be related to deterioration in the feeding conditions off the colony and is alarming considering the critically endangered status of the species in Norway. To measure body condition, earlier studies have caught, weighed and measured guillemot chicks either while still on the breeding site or as they leave the colony. This study emphasises the importance of choosing and defining which method to use as they give different results. |
| URI: | http://hdl.handle.net/10037/3881 |
| Abstract: | Forvrengning av virkeligheten for reindriften på Kola er et hinder for å løse interne problem og inviterer til å flytte ansvaret over på ytre krefter. |
| URI: | http://hdl.handle.net/10037/5138 |
| Abstract: | 2011 is the Nansen-Amundsen Year in Norway. This year celebrate two anniversaries with great significance for Norway. It is 150 years since the birth of Fritdjof Nansen and 100 years since Roald Amundsen, accompanied by four of his men, arrived as the first at the South Pole. During this year several new exhibitions has been made and displayed in different museums in Norway. The article surveys the role of today’s museums has in forming the narratives about the Norwegian polar history, the polar heroes and Roald Amundsen especially. An examination of a so called traditional Polar exhibition shows that their main focus on artifacts and their lack of contextualization, gives the exhibition an aura of authenticity. While new exhibitions are characterized by emphasis on contextualization, critical questions and giving different groups a voice. It is argued that the museums both contributes to conserve the prevailing concepts and representations, but also contributes to give new understandings and perspectives of Roald Amundsen and the Norwegian Polar history. It is important to understand how the museums exhibitions are contributing to the collective memory. |
| URI: | http://hdl.handle.net/10037/4482 |
| Abstract: | The synthetic aperture focusing technique (SAFT) is used to create focused images from ultrasound scans. SAFT has traditionally been applied only for imaging in a single medium, but the recently introduced phase shift migration (PSM) algorithm has expanded the use of SAFT to multilayer structures. In this article we present a similar focusing algorithm called multi-layer omega-k (MULOK), which combines PSM and the ω-k algorithm to perform multilayer imaging more efficiently. The asymptotic complexity is shown to be lower for MULOK than for PSM, and this is confirmed by comparing execution times for implementations of both algorithms. To facilitate the complexity analysis, a detailed description of algorithm implementation is included, which also serves as a guide for readers interested in practical implementation. Using data from an experiment with a multilayered structure, we show that there is essentially no difference in image quality between the two algorithms. |
| URI: | http://hdl.handle.net/10037/4084 |
| Abstract: | I artikkelen beskrives og diskuteres to prosjekter der dramastudenter har produsert teater på bakgrunn av profesjonsstudenters praksiserfaringer, og de ferdige produktene har blitt brukt i utdanningen av nye studenter. Hvordan studenter kan bidra gjensidig til hverandres læring, på tvers av profesjonsutdanninger, fakulteter og faggrenser, er artikkelens problemstilling. Gjennom observasjon, filmdokumentasjon, intervju og skriftlige tekster dokumenteres det at studentene har opplevd prosjektene både som motiverende og faglig relevante. Teorigrunnlaget for diskusjon av prosjektene er frigjørende teater og frigjørende pedagogikk. |
| URI: | http://hdl.handle.net/10037/4870 |
| Abstract: | About fifty larvae of Cephenemyia ulrichii Brauer (Diptera: Oestridae), some of them nearly fullgrown third instars, were found in the throat of a roe deer (Capreolus capreolus) in June 2007 near Helsinki in Finland. The parasite is considered to be host specific, occurring only in the moose (Alces alces), and this paper is apparently the first report of a successful infestation in an aberrant host. |
| URI: | http://hdl.handle.net/10037/2155 |
| Abstract: | The red-listed, amphi-Atlantic sedge Carex rufina is highly specialized to certain alpine snowbeds, and threatened by current changes in snow cover duration and moisture conditions. Here we address its range-wide genetic diversity, history, and conservation using amplified fragment length polymorphisms (AFLPs). Despite extensive primer testing, we detected very low overall diversity (4.1% polymorphic markers). Only a single AFLP phenotype was found throughout Norway and across the Atlantic to Iceland and Greenland, while another was found in Canada, suggesting glacial survival in one East and one West Atlantic refugium. East Atlantic C. rufina has probably been heavily bottlenecked in a small refugium, possibly situated within the maximum limits of the ice sheets. Its lack of diversity is likely maintained through local clonal growth causing longevity of genotypes. Habitat availability appears as the main limiting factor for C. rufina, and its currently occupied habitats need to be preserved to ensure its long-time survival. |
| URI: | http://hdl.handle.net/10037/4038 |
| Abstract: | Utgravningene av totalt elleve lokaliteter på Skarpeneset i 2008, med et begrenset tillegg i 2009, avdekket overraskende fire store, rektangulære tufter, mer eller mindre nedgravde i bakken, på to av lokalitetene. Tuftene er datert samlet til 7000 – 6500/6400 f.Kr. Det foreslås at de er rester etter hus med parvis skråstilte, takbærende stolper, uten markerte ildsteder og med minst to åpninger/innganger. Til tross for klare likhetstrekk framviser tuftene relativt stor morfologisk variasjon med hensyn til størrelse, form, grad og form på nedgravning i gulvet, konstruksjon av vegger, samt rominndeling. Markkjemiske analyser viser at enkelte av veggene ble brukt som avfallsområder (møddinger). Funnmaterialet var konsentrert innenfor og i veggene på tuftene. Harde bergarter, inkludert flint fra lokale morenemasser, kvarts, kvartsitt og chert, dominerer. Redskapsmaterialet består av avslag med ulike typer retusj, flekker, mikroflekker, noen få tverrspisser, stikler og bor. Flekke- og mikroflekkekjerner finnes i materialet, men vanligst er bipolare kjerner. Funn av en liten, slipt skiferøks og fragmenter av to andre økser kan muligens ses i sammenheng med påvist sekundær bruk. De resterende ni lokalitetene som ble utgravd i 2008 ga lite informasjon til kulturhistoria for Skarpeneset. |
| URI: | http://hdl.handle.net/10037/2669 |
| URI: | http://hdl.handle.net/10037/2437 |
| Abstract: | The recovery of sea eagle Haliaeetus spp. populations in the temperate northern hemisphere in the closing decades of the 20th century is one of the great conservation success stories of recent times, but the re-establishment of these apex predators in marine systems has had consequences for seabirds. Sea eagles affect seabirds both directly (by taking adults and offspring and by inducing potentially costly behaviors to minimize danger) and indirectly (by facilitating the nest predators of seabirds, mainly gulls and corvids). Repeated disturbance by hunting eagles has caused seabirds to abandon colonies and subcolonies in the tens to hundreds of thousands of pairs. In recent years, sea eagles have been widely implicated in local declines of surface-nesting seabirds in the northeast Pacific Ocean, the northwest Atlantic Ocean and northern Europe. The extent to which recent events simply reflect a return to a more “natural” ecological baseline as sea eagle populations recover from decades of persecution and chemical pollutants is discussed. We argue that there is need for a research effort to investigate the conservation implications of increasing sea eagles in the context of multiple threats to seabird populations. |
| URI: | http://hdl.handle.net/10037/5110 |
| Abstract: | The epidemiology of avian influenza viruses (AIVs) in gulls is only partially known. The role of the world's most numerous gull species, the black-legged kittiwake (Rissa tridactyla), as a potential AIV reservoir species has been unclear. The prevalence of AIV and humoral response against AIV were therefore studied in a colony of apparently healthy black-legged kittiwakes breeding in a nesting cliff in the South West Barents Region of Norway (70°22' N, 31°10' E), in 2008 and 2009. AIVs were detected from the oropharynx and cloaca in low amounts, with prevalences of 15% and 5%, in 2008 and 2009, respectively. Direct, partial sequencing of the hemagglutinin (HA) gene revealed that the H4 subtype was present. In 2009, antibodies to influenza A virus were detected in sera from 57 of 80 adult birds. In contrast, none of the three-week-old chicks (n = 18) tested seropositive. Hemagglutination inhibition (HI) assays demonstrated that the adult kittiwakes primarily had antibodies specific to the gull-associated H13 and H16 subtypes, with antibodies to H16 being most common. These results support that the highly pelagic black-legged kittiwake is a reservoir of AIV. The serological findings suggest that H16 might be the main AIV subtype in the black-legged kittiwake. Further studies are needed to understand the ecology of AIV in the black-legged kittiwake and in gulls in general. |
| URI: | http://hdl.handle.net/10037/4082 |
Now showing items 25-43 of 43
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