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norskArtikler, rapporter og annet (Universitetsmuseet): Recent submissions
Now showing items 181-200 of 402
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Scratch circles from the Ediacaran and Cambrian of Arctic Norway and the Republic of South Africa, with a review of scratch circle ocurrences
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-07-13)Scratch circles - bedding plane parallel sedimentary structures formed by the passive rotation of a tethered organism into the surrounding sediment - are relatively rare in the geological record. Here new occurrences of scratch circles are described from the Ediacaran-Cambrian Stáhpogieddi Formation, Digermulen Peninsula, Arctic Norway, and from the Ediacaran Nudaus and Urusis formations, Nama Group, ... -
New occurrences of Palaeopascichnus from the Stáhpogieddi Formation, Arctic Norway, and their bearing on the age of the Varanger Ice Age.
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-09-18)We report on new occurrences of the late Ediacaran problematicum <i>Palaeopascichnus</i> (Protista?) from the Stáhpogieddi Formation, Arctic Norway. The stratigraphically lowest occurrences are in beds transitional between the Lillevannet and Indreelva members: the highest in the second cycle of the Manndrapselva Member, stratigraphically close to the lowest occurrences of Cambrian-type trace fossils. ... -
DNA barcoding a taxonomically complex hemiparasitic genus reveals deep divergence between ploidy levels but lack of species-level resolution
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-04-24)DNA barcoding is emerging as a useful tool not only for species identification but also for studying evolutionary and ecological processes. Although plant DNA barcodes do not always provide species-level resolution, the generation of large DNA barcode data sets can provide insights into the mechanisms underlying the generation of species diversity. Here, we study evolutionary processes in taxonomically ... -
Pannaria pyxinoides comb. nov., an overlooked lichen from Northern New Zealand
(Journal article; Tidsskriftartikkel, 2018-07)The name <i>Psoroma pyxinoides</i>, which has been considered to be a synonym of <i>Pannaria sphinctrina</i>, is shown here to represent a distinct species, differing from <i>P. sphinctrina</i> by thallus characters and in spore and pycnidium morphology. Those characters indicate a relationship with <i>Pannaria allorhiza</i>. Like the latter species, <i>P. pyxinoides</i> is endemic to northern New ... -
Psoroma spinuliferum (Pannariaceae), a new corticolous lichen species from Alaska with two different types of cephalodia
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-04-30)The species <i>Psoroma spinuliferum</i> is described here as new to science. It is only known from the holotype on a <i>Picea sitchensis</i> trunk near a sea-shore in southern, coastal Alaska. The species is distinct in having short, brittle, spinule-like hairs on both apothecium margins, thalline squamules and on pulvinate to coarsely coralloid cephalodia with emerald-colored <i>Nostoc</i> photobionts. ... -
A new species of the haematophagous genus Austroconops Wirth & Lee (Diptera: Ceratopogonidae: Leptoconopinae) from middle Cretaceous amber of Charente-Maritime, France
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-08-20)<i>Austroconops perrichoti</i>, a new species of biting midge (Diptera: Ceratopogonidae), is described from uppermost Albian-lowermost Cenomanian amber of Charente-Maritime (NW France), from three female specimens. A similar species, <i>Austroconops borkenti</i> Szadziewski & Schlüter, 1992, from Upper Cretaceous, Cenomanian, French amber of Anjou, is redescribed and illustrated. A key to males and ... -
The taxonomic status of two species of predaceous midges in the genera Bezzia and Palpomyia described by STÆGER (1839) in the genus Ceratopogon (Diptera: Ceratopogonidae: Palpomyiini)
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-12-28)Lectotypes are designated for the predaceous midges, <i>Ceratopogon circumdatus</i> Stæger, 1839, and <i<Ceratopogon binotatus</i> Stæger, 1839 housed in the Copenhagen Zoological Museum, Denmark, and both species are redescribed and photographed. <i>Ceratopogon circumdatus</i> is removed from synonymy with <i>Bezzia solstitialis</i> (Winnertz, 1852) and recognized as a new synonym of <i>Bezzia ... -
Holocene floristic diversity and richness in northeast Norway revealed by sedimentary ancient DNA (sedaDNA) and pollen
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-10-30)We present a Holocene record of floristic diversity and environmental change for the central Varanger Peninsula, Finnmark, based on ancient DNA extracted from the sediments of a small lake (<i>sed</i>aDNA). The record covers the period c. 10 700 to 3300 cal. a BP and is complemented by pollen data. Measures of species richness, sample evenness and beta diversity were calculated based on <i>sed</i>aDNA ... -
Minimizing polymerase biases in metabarcoding
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-05-24)DNA metabarcoding is an increasingly popular method to characterize and quantify biodiversity in environmental samples. Metabarcoding approaches simultaneously amplify a short, variable genomic region, or “barcode,” from a broad taxonomic group via the polymerase chain reaction (PCR), using universal primers that anneal to flanking conserved regions. Results of these experiments are reported as ... -
Human–environment dynamics during the Iron Age in the Lofoten Islands, Norway
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-05-01)Integrated archaeological and paleoenvironmental investigations provide long-term perspectives on human–environment interactions. In the North Atlantic region, early human settlements were established in marginal agricultural environments and were susceptible to various environmental stressors. The Lofoten Islands have had an important role in the history of this region, particularly during the ... -
Bryophytes facilitate outcrossing of Mitella by functioning as larval food for pollinating fungus gnats
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-06-11) -
Bycatch in trawl-fisheries. Sub-project 3
(Research report; Forskningsrapport, 2000)The main goals of this sub-project were to evaluate whether interviewing fishers could be an appropriate method to reveal quantities of the bycatches in the Norwegian trawl fisheries, and to describe the knowledge about and the fishermen's attitudes to the bycatch problem. In total 11 crew members on trawlers from a fishing company in Lofoten were interviewed. The data from the interviews showed ... -
Alt eller ingenting: Annerledesgjøren og agens i to (post)koloniale kunstprosjekter
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-10-22)Artikkelen tar utgangspunkt i to kunstprosjekter som på ulike måter tematiserer europeisk utstillingskultur og nordisk kolonialisme i fortid og nåtid; «European Attraction Limited» av Lars Cuzner og Cassius Fadlabi (2011–14) og Joar Nangos «European Everything» (2017). Prosjektene diskuteres i lys av en historisk utstillingspraksis som prosjektene påkaller på en direkte eller indirekte måte, nemlig ... -
Narratives of Sámi School History in Finland: The Histories of Assimilation Made Visible
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018)This article analyses narratives that have been produced about the Sámi school experience in Finland. The sources consist of studies in Sámi school history and history of education in Finland, as well as in pedagogical studies made since the 1980s, comparing the narratives found in each case. The narrative of assimilation dominates the field for good, historically verifiable reasons. This genre of ... -
Sámi natural resource exploitation in a markebygd and its significance today?
(Journal article; Tidsskriftartikkel; Peer reviewed, 1993)<i>Introduction</i>: In my investigation (Storm 1990) of the markebygd of Rásmirvuovdi/Gressmyrskogen on the island of Sážžá/Senja in the province of Romssa/Troms, I have reconstructed the settlement process from 1700 to 1900 AD. The focus was on the practice of Sámi resource exploitation – which resources and resource areas were used, and how the land was exploited – and what kind of Sámi settlements ... -
Prevailing weather conditions and diet composition affect chick growth and survival in the black-legged kittiwake
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-10-04)To identify priorities for management of seabirds during the breeding season, it is important to understand the ecological mechanisms driving chick growth and survival. In this study, we examined the effects of diet and prevailing weather on the growth and survival of chicks of black-legged kittiwakes Rissa tridactyla over a 10 yr period at Anda, a seabird colony in northern Norway. We show that ... -
To tufter i Abelsborg. Utgravning av to tidlig metalltidstufter
(Research report; Forskningsrapport, 2018-03-08)Sommeren 2016 ble det undersøkt to tufter ved Abelsborg i Nesseby k. Tuft 1 var en kraftig forstyrret tuft, som kan ha hatt en oval form med sentralt plassert rektangulært ildsted. Kun halve ble gravd ut og antatt størrelse er på huset er ca. 6 x 4-5 meter. Blant funna var det asbestke-ramikk, emner til, og deler av skiferredskaper, slipestein, knakkestein og fiskesøkke. Dateringene spente ... -
Nordvegen på Hillesøy - Utgravning av båtgrav fra yngre jernalder
(Research report; Forskningsrapport, 2018-03-01)Sommeren 2017 ble det funnet bein etter menneske spredt på en påbegynt vegtrasé ovenfor Nordvegen på Hillesøy på sørvest-sida av Kvaløya utenfor Tromsø. Den arkeologiske undersøkelsen viste at beina stammer fra en båtgrav fra yngre jernalder. Litt over halve båten var fortsatt bevart, mens resten var ødelagt av anleggsarbeidet. I den bevarte delen lå fortsatt bekken og underkropp på plass. Båten var ... -
Nyelv Nedre Vest. Utgravning av hustufter og boplass fra yngre steinalder
(Research report; Forskningsrapport, 2018-01-09)Prosjektet ble iverksatt som konsekvens av reguleringsplan for bygging av ny bru over Nyelv og utbedring av tilstøtende deler av E6. På Gressbakken Nedre Øst lå det berørte området rett ved eksisterende vegskjæring, hvor mye av opprinnelig terreng allerede var fjernet i forbindelse med tidligere vegbygging. Det ble foretatt en mindre undersøkelse her, uten at det framkom funn eller andre indikasjoner ... -
Global phenological insensitivity to shifting ocean temperatures among seabirds
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-04-02)Reproductive timing in many taxa plays a key role in determining breeding productivity, and is often sensitive to climatic conditions. Current climate change may alter the timing of breeding at different rates across trophic levels, potentially resulting in temporal mismatch between the resource requirements of predators and their prey. This is of particular concern for higher-trophic-level organisms, ...
