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Past and future effects of climate on the metapopulation dynamics of a Northeast Atlantic seabird across two centuries
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-12-31)Forecasting population responses to rapidly changing marine ecosystems requires mechanistic models integrating complex demographic processes, fitted to long time series, across large spatial scales. We used a Bayesian metapopulation model fit to colony census data and climatic covariates spanning 1900–2100 for all Northeast Atlantic colonies of an exemplar seabird, the Northern gannet (Morus bassanus) ... -
Norske navn på alle karplantefamilier og -ordener
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024)Over time, Norwegian vernacular names have been coined for all vascular plant species, genera, families and orders represented in Norway. Imported, economically important species (used as food, medicine etc.) have also frequently acquired Norwegian names. This still leaves numerous exotic plant families and plant orders without a Norwegian name, albeit sometimes requested e.g. by translators. ... -
En fremmedartet steinalderøks
(Chapter; Bokkapittel, 2024)Hvorfor er en av de veldig få enkle skafthulløksene i Nord-Norge funnet i Rødbergshamna på Lenvikhalvøya? En øksetype som forbindes med jordbruk og rydding av innmark ved slutten av steinalderen i Sør-Norge, men som her må ha befunnet seg i et jakt-, fangst - og fiskelandskap. Tromsø Museum, Universitetsmuseet ved UiT - Norges arktiske universitet, er ett av fem museer i Norge med ansvar for at funn ... -
75. Lake Tenndammen, Colesdalen, Nordenskiöld Land, western Svalbard (Spitsbergen) archipelago
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-10-16)The study site, small (0.15 ha), shallow (mean depth of 1.5 m; for details see Poliakova et al. 2024) lake Tenndammen(N78°06.118′; E15°02.024′, altitude 5 m above sea level [a.s.l.]) is located about 1 km away from the Greenland Sea shore in the Colesdalen (Coles valley), Svalbard (Spitsbergen, Шпицберген). The research area is known as one of Svalbard’s biodiversity hotspots, with the highest number ... -
Refining Holocene sea-level variations for the Lofoten and Vesterålen archipelagos, northern Norway: implications for prehistoric human–environment interactions
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-03-04)The Lofoten and Vesterålen archipelagos are located off the outer coast of northern Norway far from the center of the former Fennoscandian Ice Sheet and near the continental shelf edge. Existing relative sea‐level (RSL) data indicate a pronounced mid‐Holocene transgression and interesting connections with the region's prehistoric human settlement history. Here we present seven new sea‐level index ... -
Digestive contents and food webs record the advent of dinosaur supremacy
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-11-27)The early radiation of dinosaurs remains a complex and poorly understood evolutionary event<sup>1–4</sup> . Here we use hundreds of fossils with direct evidence of feeding to compare trophic dynamics across five vertebrate assemblages that record this event in the Triassic–Jurassic succession of the Polish Basin (central Europe). Bromalites, fossil digestive products, increase in size and diversity ... -
Insights into early animal evolution from the genome of the xenacoelomorph worm Xenoturbella bocki
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-10-29)The evolutionary origins of Bilateria remain enigmatic. One of the more enduring proposals highlights similarities between a cnidarian-like planula larva and simple acoel-like flatworms. This idea is based in part on the view of the Xenacoelomorpha as an outgroup to all other bilaterians which are themselves designated the Nephrozoa (protostomes and deuterostomes). Genome data can provide important ... -
Drivers of Interspecific Spatial Segregation in Two Closely-Related Seabird Species at a Pan-Atlantic Scale
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-11-11)Aim - Ecologically similar species living in sympatry are expected to segregate to reduce the effects of competition where resources are limiting. Segregation from heterospecifics commonly occurs in space, but it is often unknown whether such segregation has underlying environmental causes. Indeed, species could segregate because of different fundamental environmental requirements (i.e., ‘niche ... -
Holocene summer temperature reconstruction from plant sedaDNA and chironomids from the northern boreal forest
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-10-30)Climate-induced ecotonal shifts are expected to occur in the (sub)arctic and boreal zones in the coming decades. Understanding how these ecosystems have previously responded to climate change can provide greater insight into how ecosystems may develop under existing and future pressures. Here we present a Holocene record from Lake Horntjernet, a lake on the northern edge of the boreal forest in ... -
Dynamic home range of the grey-sided vole Craseomys rufocanus: a pilot study
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-07-15)Background Knowledge about home range size is vital to understand social systems and population dynamics of small mammals, as well as dispersal and a species’ landscape use. Home ranges have been mapped for some species of voles (subfamily Microtinae) but remain virtually unknown for many species, including the grey-sided vole Craseomys rufocanus. <p>Results A small pilot study was carried out ... -
Diversity, toxicity, and distribution of potentially toxic diatoms in Antarctic waters––With description of Pseudo-nitzschia meridionalis sp. nov. and P. glacialis sp. nov.
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-09-12)Diatoms of the genus Pseudo-nitzschia, known for their potential toxicity, are integral to the phytoplankton community of the Southern Ocean, which surrounds Antarctica. Despite their ecological importance, the diversity and toxicity of Pseudo-nitzschia in this region remain underexplored. Globally, these diatoms are notorious for forming harmful algal blooms in temperate and tropical waters, causing ... -
Papaver recircumscribed: A review of neighbouring Papaveraceae genera, including Afropapaver nom. et stat. nov. and Oreomecon, a large, Arctic-Alpine genus
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-10-29)Papaveraceae tribus Papavereae includes an American and a mainly Eurasian group of genera. The latter is proposed here to include eight genera. Amongst these, the recently described genus Oreomecon is phylogenetically a sister group to Meconopsis, a genus from Himalaya and central China, which is reviewed here as including 95 species and 21 subspecies. By contrast, Oreomecon has a circumpolar northern ... -
A new species of Dasyhelea Kieffer, 1911 (Diptera: Ceratopogonidae) visiting flowers of Aristolochia in France
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-09-26)Both sexes of Dasyhelea porczynskii Szadziewski, Blatrix et Dominiak, n. sp. collected from flowers of Aristolochia clematitis L. in southern France are described and illustrated. The new species is closely related to D. leptoclada Remm, 1967 female of which is briefly diagnosed for the first time. -
Boats from bogs in Arctic Norway: depositional contexts and explanatory frameworks in the Late Iron Age and Mediaeval period
(Chapter; Bokkapittel, 2024)A comprehensive assessment of boat-related bog finds from the collection of the Arctic University Museum of Norway (Norges Arktiske Universitetsmuseum, NAU) materialises the entanglement of boat technology and cultural meaning in northern Norway during the Iron Age. Nineteen boat parts and related equipment made of Scots pine (Pinus sylvestris) from 17 bog locations have been documented. As the Early ... -
A renaissance of microRNAs as taxonomic and phylogenetic markers in animals
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-06-21)Molecular markers for tracing animal sample origins and compositions are critical for applications such as parasite detection, contamination screening, and sample authentication. Among these, microRNAs have emerged as promising candidates due to their deep conservation, near-hierarchical evolution, and sta bility. I here review the suitability of microRNAs as taxonomic and also phylo genetic ... -
Microbial community composition unaffected by mycorrhizal plant removal in sub-arctic tundra
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-03-11)Vegetation changes in a warming Arctic may affect plant-associated soil microbial communities with possible consequences for the biogeochemical cycling of carbon (C) and nitrogen (N). In a sub-arctic tundra heath, we factorially removed plant species with ecto- and ericoid mycorrhizal associations. After two years, we explored how mycorrhizal type-specific plant removal influences microbial ... -
Extra-pair paternity and sperm length variation in a far northern Great Tit (Parus major) population
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-07-25)Extra-pair paternity is common among socially monogamous bird species and considered an important driver of post-copulatory sexual selection on ejaculate traits including sperm traits. Patterns of extra-pair paternity and sperm size both show substantial variation among populations, yet we know little about the expression of these key reproductive traits at high latitudes. Here we report patterns ... -
Bakestones in Northern Norway: An Archaeological Witness to Medieval Foodways and Maritime Trade
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-07-01)BAKESTONES ARE A 11TH-CENTURY EARLY MEDIEVAL INNOVATION associated with flatbread production that reflect a distinctive Norwegian food culture spanning some 600 years. Large scale manufacture of chlorite schist bakestones at Ølve-Hatlestrand, western Norway, was linked to further distribution in Norway from the port of Bergen. Bakestones were an important item of maritime trade transported to northern ... -
Greening of Svalbard
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-06-21)Svalbard, located between 76°30′N and 80°50′N, is among the regions in the world with the most rapid temperature increase. We processed a cloud-free time-series of MODIS-NDVI for Svalbard. The dataset is interpolated to daily data during the 2000–2022 period with 232 m pixel resolution. The onset of growth, with a clear phenological definition, has been mapped each year. Then the integrated NDVI ... -
Timing and extent of primary moult in breeding Black-legged Kittiwakes Rissa tridactyla at different colonies in the north-east Atlantic
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-05-24)Timing of moult of the inner primaries by breeding Black-legged Kittiwakes is very similar among colonies ranging from southern England to northern Norway, but can be much later at very high-latitude colonies, such as at Svalbard, where breeding is delayed by the late spring thaw. Breeding adult Black-legged Kittiwakes almost all replaced the first and second (innermost) primary feathers on their ...
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