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norskArtikler, rapporter og annet (arktisk og marin biologi)
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BioTIME 2.0: Expanding and Improving a Database ofBiodiversity Time Series
(Journal article; Tidsskriftartikkel; Peer reviewed, 2025-05-14)Motivation - Here, we make available a second version of the BioTIME database, which compiles records of abundance estimates for species in sample events of ecological assemblages through time. The updated version expands version 1.0 of the database by doubling the number of studies and includes substantial additional curation to the taxonomic accuracy of the records, as well as the metadata. Moreover, ... -
Scientific report from the Norwegian and Russian Barents Sea ecosystem surveys in August-October 2024 (BESS)
(Research report; Forskningsrapport, 2025-05-08)The aim of the national Norwegian/Russian ecosystem surveys in the Barents Sea and adjacent waters, August- October (BESS) is to monitor the status and changes in the Barents Sea ecosystem and provide data to support scientific research and manager advice. The survey has since 2004 been conducted annually in the autumn, as a collaboration between the Institute of Marine Research (IMR) in Norway ... -
Environmental effects monitoring of offshore oil and gas activities on the Norwegian continental shelf: A review
(Journal article; Tidsskriftartikkel; Peer reviewed, 2025-04-24)This review examines the evolution and findings of Norway's offshore environmental monitoring (OEM) program over the past five decades. The program targets soft sediments, water column organisms, and deep-water epifauna across the Norwegian Continental Shelf (NCS) to assess the impacts of offshore oil and gas activities. The program is required by Norwegian authorities and financed by oil and gas ... -
Prevalence and density of Elaphostrongylus rangiferi larvae in faecal samples of semi-domestic reindeer (Rangifer tarandus tarandus) in Norway 2013-16
(Journal article; Tidsskriftartikkel; Peer reviewed, 2025-01-21)Background - The reindeer brainworm, Elaphostrongylus rangiferi, is a protostrongylid parasite of reindeer that has caused severe disease outbreaks in reindeer husbandry. E. rangiferi is considered ubiquitous in Norway, though most published prevalence studies are from Finnmark county only. In the present study, faecal samples were collected over three winter seasons (2013–2016) from eight herds of ... -
WORKSHOP MNT konferansen 2025: Praksis i disiplin og tverrfaglige studieprogram: Hva, hvorfor og hvordan?
(Conference object; Konferansebidrag, 2025)I løpet av de siste tiårene har flere fagmiljø i høyere utdanning i Norge utviklet og etablert praksisemner for studenter innen disiplinfagene biologi og geologi, samt det tverrfaglige studiet fiskeri og havbruksvitenskap. I denne workshopen vil vi gjennomføre en interaktiv “Jigsaw aktivitet” for å presentere og diskutere erfaringer og forskningsresultater fra implementeringen av disse praksisemnene ... -
Sjøpattedyrutvalget 2024 - Tilrådning om forskning og forvaltning
(Research report; Forskningsrapport, 2024)Sjøpattedyrutvalget hadde sitt årlige møte i Tromsø 18.-19. november 2024. Utvalgets oppgave er å utarbeide anbefalinger og tilrådninger om forskning og forvaltning av sjøpattedyr i Norge. Dette inkluderer kvoteråd for arter som fangstes eller jaktes. I denne rapporten oppsummeres sakene som ble behandlet på årets møte. -
Competition and interdependence define interactions of Nostoc sp. and Agrobacterium sp. under inorganic carbon limitation
(Journal article; Tidsskriftartikkel; Peer reviewed, 2025-03-08)Cyanobacteria of the Nostoc genus are capable of forming symbiotic relationships with plants but also serve as a hub for heterotrophic bacteria. By comparing the axenic strain Nostoc punctiforme PCC 73102 and the xenic strains Nostoc sp. KVJ2 and KVJ3, we were able to demonstrate an almost obligate dependence of the cyanobacteria on the heterotrophic partners under carbon-limiting conditions. A ... -
Toward the integration of speciation research
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-02-16)Speciation research—the scientific field focused on understanding the origin and diversity of species—has a long and complex history. While relevant to one another, the specific goals and activities of speciation researchers are highly diverse, and scattered across a collection of different perspectives. Thus, our understanding of speciation will benefit from efforts to bridge scientific findings ... -
Policy documents considering biodiversity, land use, and climate in the European Arctic reveal visible, hidden, and imagined nexus approaches
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-01-03)The Arctic is experiencing rapid and interlinked socio-environmental changes. Therefore, governance approaches that take the complex interactions between climate change, biodiversity loss, increasing land use pressures, and local livelihoods into account are needed: nexus approaches. However, an overview of whether and to what extent Arctic policies address these nexus elements in concert has ... -
Diminishing warming effects on plant phenology over time
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-08-05)<ul> <li>Plant phenology, the timing of recurrent biological events, shows key and complex response to climate warming, with consequences for ecosystem functions and services. A key challenge for predicting plant phenology under future climates is to determine whether the phenological changes will persist with more intensive and long-term warming.</li> <li>Here, we conducted a meta-analysis of ... -
Trail cameras can greatly inflate nestpredation rates
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-11-27)Photographic monitoring currently provides the most accurate means for identifying nest predators and eventually their role in bird population declines worldwide. However, previous studies have found that commercially available trail cameras represent an artificial structure that tend to negatively bias predation rates, likely through predator neophobia. Based on an experiment in Arctic tundra, ... -
Circulation and Hydrography in the Northwestern Barents Sea: Insights From Recent Observations and Historical Data (1950–2022)
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-08-13)The Barents Sea is one of the main pathways for warm and saline Atlantic Water (AW) entering the Arctic Ocean. It is an important region where water mass transformation and dense-water production contribute to the Atlantic meridional overturning circulation. Here, we present data from three cruises and nine glider missions conducted between 2019 and 2022 in the northwestern Barents Sea, and compare ... -
Accuracy of serological tests for bovine brucellosis: A systematic review and meta-analysis
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-11-21)The direct methods for diagnosis of bovine brucellosis have several limitations, therefore serological tests are the basis for the diagnosis of the disease. However, a meta-analysis estimating the diagnostic sensitivity (DSe) and diagnostic specificity (DSp) on the main tests used in bovine brucellosis control programs worldwide has not been performed. This systematic review and meta-analysis aimed ... -
Households neighboring wildlife protected areas may be at a higher risk of rabies than those located further away: a community-based cross-sectional cohort study at Pian Upe game reserve, Bukedea district, Eastern Uganda
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-04-22)Introduction: This study examines rabies incidence and associated risk factors at the interface between wildlife and human communities near Pian-Upe game reserve in Eastern Uganda. We hypothesized that human settlements in closer proximity to the reserve would exhibit higher rabies risk compared to those located further away.<p> <p>Methods: Using a standard questionnaire, households within <4, ... -
Differences in Tri-Trophic Community Responses to Temperature-Dependent Vital Rates, Thermal Niche Mismatches and Temperature-Size Rule
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-12-02)Warming climate impacts aquatic ectotherms by changes in individual vital rates and declines in body size, a phenomenon known as the temperature-size rule (TSR), and indirectly through altered species interactions and environmental feedbacks. The relative importance of these effects in shaping community responses to environmental change is incompletely understood. We employ a tri-trophic food ... -
Growth and maturation of rainbow smelt (Osmerus mordax) at the northern limit of their distribution range (Lake Melville, Labrador): Support for the hypothesized temperature-size rule
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-12-06)Rainbow smelt (Osmerus mordax), a small pelagic fish found throughout the northwest Atlantic Ocean, experienced a northward retreat of its distribution range over the 20th century and an overall decline in biomass in recent decades, both attributed to warming waters and habitat loss. In the Lake Melville estuary (Labrador, Canada), at the northern limit of its distribution range, smelt represents ... -
A food-web assessment model for marine mammals, fish, and fisheries in the Norwegian and Barents Seas
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-10-15)The Norwegian and Barents Seas host large commercial fish populations that interact with each other, as well as marine mammal populations that feed on plankton and fish. Quantifying the past dynamics of these interacting species, and of the associated fisheries in the Norwegian and Barents Sea is of high relevance to support ecosystem-based management. The purpose of this work is to develop a food-web ... -
Synergy and competition during the anaerobic degradation of N-acetylglucosamine in a methane-emitting, subarctic, pH-neutral fen
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-12-11)Peatlands are invaluable but threatened ecosystems that store huge amounts of organic carbon globally and emit the greenhouse gasses carbon dioxide (CO<sub>2</sub>) and methane (CH<sub>4</sub>). Trophic interactions of microbial groups essential for methanogenesis are poorly understood in such systems, despite their importance. Thus, the present study aimed at unraveling trophic interactions between ... -
Seroprevalence and risk factors of brucellosis in pastoralists and their livestock in Central Equatoria State, South Sudan
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-12-19)Background Brucellosis poses serious public health implications and substantial economic losses in pastoral rural settings in South Sudan. In humans, brucellosis is almost always originating from animals. Current literature provides scant data regarding the seroprevalence of brucellosis in South Sudan. This cross-sectional study investigates the seroprevalence of brucellosis among the pastoral ... -
Contrasting two major Arctic coastal polynyas: the role of sea ice in driving diel vertical migrations of zooplankton in the Laptev and Beaufort seas
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-12-17)The diel vertical migration (DVM) of zooplankton is one of the largest species migrations to occur globally and is a key driver of regional ecosystems and the marine carbon pump. Previously thought to be hampered by the extreme light regime prevailing in the Arctic Ocean, observations have revealed that DVM does occur in ice-covered Arctic waters and suggest the decline in Arctic sea ice may thereby ...
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