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norskArtikler, rapporter og annet (Universitetsmuseet): Nye registreringer
Viser treff 161-180 av 389
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Considerations and consequences of allowing DNA sequence data as types of fungal taxa
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-05-24)Nomenclatural type definitions are one of the most important concepts in biological nomenclature. Being physical objects that can be re-studied by other researchers, types permanently link taxonomy (an artificial agreement to classify biological diversity) with nomenclature (an artificial agreement to name biological diversity). Two proposals to amend the International Code of Nomenclature for algae, ... -
Prevention of microbial species introductions to the arctic: The efficacy of footwear disinfection measures on cruise ships
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-03-06)Biosecurity measures are commonly used to prevent the introduction of non-native species to natural environments globally, yet the efficacy of practices is rarely tested under operational conditions. A voluntary biosecurity measure was trialled in the Norwegian high Arctic following concern that non-native species might be transferred to the region on the footwear of travellers. Passengers aboard ... -
Gammarid amphipods (Crustacea) in Norway, with a key to the species
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-02-28)Thirteen species in the amphipod family Gammaridae have been reported from Norway. This paper gives a survey of the distribution and habitat of all 13 species of the family Gammaridae occurring or expected to occur in Norwegian waters: both marine, brackish and fresh, including Svalbard, in addition to four species found in close neighbouring waters. It also provides a short history of the study of ... -
Vuolmmašjohka i Porsanger. Undersøkelse av tidlig-mesolittisk boplass og samiske kulturminner. Porsanger k., Finnmark f.
(Research report; Forskningsrapport, 2019)I 2017 undersøkte Tromsø Museum en boplass fra eldre steinalder, ett árran fra middelalder og skyteskjul antatt å være samiske, men som viste seg å være av moderne karakter. Boplassen fra steinalder besto av ulike funnkonsentrasjoner og kunne dateres til perioden 8500-8200 f. Kr. Gjenstandsmaterialet var innholdsrikt med kjerner, tangespisser, eneggete spisser, mikrolitter og veldokumentert ... -
Chertbruddet i Melsvik. Undersøkelse av chertbrudd, utvinningsteknologi og bosetningsspor fra tidlig eldre steinalder i Melsvik, Alta k., Finnmark f.
(Research report; Forskningsrapport, 2019)I 2012-2013 ble et chertbrudd fra steinalderen undersøkt utenfor Alta i Finnmark. Undersøkelsen omfattet 1000 m2 av steinbruddet, og 3500 m2 av bosetingsområdene som lå like ved. I tillegg til utgravning ble det gjort eksperimenter med utvinning av chert i bruddet. Resultatene viser at bruddet ble brukt allerede 8400 f.Kr., og at fyrsetting var den viktigste metoden for å bryte chert fra berget. ... -
Prospects and challenges of environmental DNA (eDNA) monitoring in freshwater ponds
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-09-03)Environmental DNA (eDNA) analysis is a rapid, non-invasive, cost-efficient biodiversity monitoring tool with enormous potential to inform aquatic conservation and management. Development is ongoing, with strong commercial interest, and new uses are continually being discovered. General applications of eDNA and guidelines for best practice in freshwater systems have been established, but ... -
Holocene vegetation change in northernmost Fennoscandia and the impact on prehistoric foragers 12 000–2000 cal. a BP – A review
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-09-14)While single pollen records are widely used in reconstructing the environment for nearby prehistoric settlements, they are less helpful when addressing large‐scale issues of variation in human settlement patterns. In order to assess the impact of vegetation change on regional prehistoric settlement and subsistence patterns in an ecotone sensitive area, we inferred the general change in main vegetation ... -
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 ...
