Blar i forfatter "Sundset, Monica Alterskjær"

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    • Academic development through a collective approach – introducing peer observation of teaching in a multidisciplinary faculty 

      Sundset, Monica Alterskjær; Sandvoll, Ragnhild (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-06-03)
      Peer observation of teaching is seen as a significant feature of professional development in higher education, aiming to improve teaching and learning. This qualitative case study explores how peer observation can be introduced at a multidisciplinary faculty with STEM and business educations, identifying opportunities and challenges experienced when colleagues participate in peer observation. A peer ...

    • Bacterial diversity in faeces from polar bear (Ursus maritimus) in Arctic Svalbard 

      Glad, Trine; Brusetti, Lorenzo; Aars, Jon; Bernhardsen, Pål; Nielsen, Kaare Magne; Andersen, Magnus; Sundset, Monica Alterskjær (Journal article; Tidsskriftartikkel; Peer reviewed, 2010)
      Background Polar bears (Ursus maritimus) are major predators in the Arctic marine ecosystem, feeding mainly on seals, and living closely associated with sea ice. Little is known of their gut microbial ecology and the main purpose of this study was to investigate the microbial diversity in faeces of polar bears in Svalbard, Norway (74-81 degrees N, 10-33 degrees E). In addition the level of blaTEM ...

    • The Bacterial Microbiome in the Small Intestine of Hooded Seals (Cystophora cristata) 

      Acquarone, Mario; Salgado-Flores, Alejandro; Sundset, Monica Alterskjær (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-10-27)
      Arctic hooded seals (Cystophora cristata) are monogastric carnivores that go through extreme fasting and re-feeding in early life. They are born isolated on sea ice; suckle high-fat milk for four days and may then fast for up to one month before they start hunting and feeding on small prey (fish and crustaceans). Previous studies of the gut microbiota in pinnipeds have focused on the large intestine, ...

    • Bridging traditional and scientific knowledge on reindeer meat smoking - a pilot study 

      Hansen, Kia Krarup; Turi, Issat; Sundset, Monica Alterskjær; Mathiesen, Svein Disch (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-05-18)
      Smoking reindeer meat in a traditional Sámi lávvu (tent) is a knowledgeable and long tradition for food preservation among Sámi reindeer herders. However, due to the formation of polycyclic aromatic hydrocarbons (PAH) during smoking, scientists associate smoked meat with human health risks. PAH contamination of smoked food depends on the smoking method, the temperature and the wood species. The ...

    • Characterization of the cecum microbiome from wild and captive rock ptarmigans indigenous to Arctic Norway 

      Salgado-Flores, Alejandro; Tveit, Alexander Tøsdal; Wright, A-D; Pope, Phillip; Sundset, Monica Alterskjær (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-03-11)
      Rock ptarmigans (<i>Lagopus muta</i>) are gallinaceous birds inhabiting arctic and sub-arctic environments. Their diet varies by season, including plants or plant parts of high nutritional value, but also toxic plant secondary metabolites (PSMs). Little is known about the microbes driving organic matter decomposition in the cecum of ptarmigans, especially the last steps leading to methanogenesis. ...

    • Characterization of the gut microbiome of hooded seals (Cystophora cristata) 

      Acquarone, Mario; Salgado, Alejandro Flores; Sundset, Monica Alterskjær (Conference object; Konferansebidrag, 2016-03-14)

    • A Comparative Study on the Faecal Bacterial Community and Potential Zoonotic Bacteria of Muskoxen (Ovibos moschatus) in Northeast Greenland, Northwest Greenland and Norway 

      Andersen-Ranberg, Emilie; Barnes, Christopher J; Rasmussen, Linett; Salgado-Flores, Alejandro; Grøndahl, Carsten; Mosbacher, Jesper Bruun; Hansen, Anders J.; Sundset, Monica Alterskjær; Schmidt, Niels Martin; Christian, Sonne (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-07-25)
      Muskoxen (<i>Ovibos moschatus</i>) are ruminants adapted to a high-fibre diet. There is increasing interest in the role that gut microbes play in the digestion and utilization of these specialized diets but only limited data available on the gut microbiome of high-Arctic animals. In this study, we metabarcoded the 16S rRNA region of faecal samples from muskoxen of Northeast Greenland, Northwest ...

    • A first insight into the fecal microbiota of the high Arctic muskoxen (Ovibos moschatus) 

      Salgado, Alejandro Flores; Bockwoldt, Mathias; Hagen, Live Heldal; Pope, Phillip; Sundset, Monica Alterskjær (Journal article; Tidsskriftartikkel, 2016-07-11)
      The faecal microbiota of muskoxen (n=3) pasturing on Ryøya (69° 33′ N 18° 43′ E), Norway, in late September was characterized using high-throughput sequencing of partial 16S rRNA gene regions. A total of 16 209 high-quality sequence reads from bacterial domains and 19 462 from archaea were generated. Preliminary taxonomic classifications of 806 bacterial operational taxonomic units (OTUs) resulted ...

    • High-throughput DNA sequencing of the moose rumen from different geographical locations reveals a core ruminal methanogenic archaeal diversity and a differential ciliate protozoal diversity 

      Ishaq, Suzanne L.; Sundset, Monica Alterskjær; Crouse, John; Wright, Andre-Denis G. (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-10-13)
      Moose rumen samples from Vermont, Alaska and Norway were investigated for methanogenic archaeal and protozoal density using real-time PCR, and diversity using high-throughput sequencing of the 16S and 18S rRNA genes. Vermont moose showed the highest protozoal and methanogen densities. Alaskan samples had the highest percentages of Methanobrevibacter smithii, followed by the Norwegian samples. One ...

    • Incomplete degradation of lichen usnic acid and atranorin in Svalbard reindeer (Rangifer tarandus platyrhynchus) 

      Węgrzyn, Michał Hubert; Wietrzyk-Pełka, Paulina; Galanty, Agnieszka; Cykowska-Marzencka, Beata; Sundset, Monica Alterskjær (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-01-22)
      Previous studies of Eurasian tundra reindeer (<i>Rangifer tarandus tarandus</i>) in Norway indicate that their rumen microbiota play a key role in degrading lichen secondary metabolites. We investigated the presence of usnic acid and atranorin in faecal samples from Svalbard reindeer (<i>R. tarandus platyrhynchus</i>). Samples were collected in Bolterdalen valley together with vegetation samples ...

    • Metagenomics of the Svalbard Reindeer Rumen Microbiome Reveals Abundance of Polysaccharide Utilization Loci 

      Pope, Phillip B; Mackenzie, Alasdair; Gregor, Ivan; Smith, Wendy; Sundset, Monica Alterskjær; McHardy, Alice; Morrison, Mark; Eijsink, Vincent (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      Lignocellulosic biomass remains a largely untapped source of renewable energy predominantly due to its recalcitrance and an incomplete understanding of how this is overcome in nature. We present here a compositional and comparative analysis of metagenomic data pertaining to a natural biomass-converting ecosystem adapted to austere arctic nutritional conditions, namely the rumen microbiome of Svalbard ...

    • Methane emissions are lower from reindeer fed lichens compared to a concentrate feed 

      Hansen, Kia Krarup; Sundset, Monica Alterskjær; Folkow, Lars; Nilsen, Marte; Mathiesen, Svein Disch (Journal article; Tidsskriftartikkel; Peer reviewed, 2018)
      Methane emissions from reindeer (Rangifer tarandus tarandus) fed lichens (mainly Cladonia stellaris) and a concentrate feed were determined using open-circuit respirometry. The lichen diet was low in crude protein (< 2.6% of dry matter [DM]), starch (6.0% DM) and acid detergent lignin (2.0% DM) compared to the concentrate feed (12.7, 22.5 and 7.2% DM, respectively), and high in neutral detergent ...

    • Probiotic dosing of ruminococcus flavefaciens affects rumen microbiome structure and function in reindeer 

      Præsteng, Kirsti; Pope, Phillip B.; Cann, Isaac K. O.; Mackie, Roderick I.; Mathiesen, Svein Dish; Folkow, Lars P.; Eijsink, Vincent G. H.; Sundset, Monica Alterskjær (Journal article; Tidsskriftartikkel; Peer reviewed, 2013-08-20)
      Highly cellulolytic bacterial species such as <i>Ruminococcus flavefaciens</i> are regarded essential for the microbial breakdown of cellulose in the rumen. We have investigated the effect of ruminal dosing of <i>R. flavefaciens</i> strain 8/94-32 during realimentation of starved reindeer (males, n = 3). Microbiome function measured as in situ digestion of cellulose and food pellets (percent DMD; ...

    • Reindeer in the Arctic reduce sleep need during rumination 

      Furrer, Melanie; Meier, Sara A.; Jan, Maxime; Franken, Paul; Sundset, Monica Alterskjær; Brown, Steven A.; Wagner, Gabriela; Huber, Reto (Journal article; Tidsskriftartikkel, 2023-12-22)
      Timing and quantity of sleep depend on a circadian (ca 24-h) rhythm and a specific sleep requirement. Sleep curtailment results in a homeostatic rebound of more and deeper sleep, the latter reflected in increased electroencephalographic (EEG) slow-wave activity (SWA) during non-rapid eye movement (NREM) sleep. Circadian rhythms are synchronized by the light-dark cycle but persist under constant ...

    • Resilience Thinking in Reindeer Husbandry 

      Tonkopeeva, Marina; Skum, Eli Risten; Hansen, Kia Krarup; Sundset, Monica Alterskjær; Romanenko, Tatyana; Griffiths, David; Moe, Lars; Mathiesen, Svein Disch (Chapter; Bokkapittel, 2023-10-28)
      Resilience expresses the capacity of a social-ecological system to adapt to, absorb, or withstand perturbations and other stressors so that the system remains. Reindeer nomadic husbandry is a coupled social-ecological system that sustains resilience by interacting with the animals and environment: either the herders adjust their actions to animal behavior or change this behavior in ways that suit ...

    • Rumen and Cecum Microbiomes in Reindeer (Rangifer tarandus tarandus) Are Changed in Response to a Lichen Diet and May Affect Enteric Methane Emissions 

      Salgado, Alejandro Flores; Hagen, Live Heldal; Ishaq, Suzanne L.; Zamanzadeh, Mirzaman; Wright, Andre-Denis G.; Pope, Phillip; Sundset, Monica Alterskjær (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-05-09)
      Reindeer (Rangifer tarandus tarandus) are large Holarctic herbivores whose heterogeneous diet has led to the development of a unique gastrointestinal microbiota, essential for the digestion of arctic flora, which may include a large proportion of lichens during winter. Lichens are rich in plant secondary metabolites, which may affect members of the gut microbial consortium, such as the methane-producing ...

    • Suggestions for a systematic regulatory approach to ocean plastics 

      Poto, Margherita Paola; Elvevoll, Edel O.; Sundset, Monica Alterskjær; Eilertsen, Karl-Erik; Morel, Mathilde; Jensen, Ida-Johanne (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-09-16)
      The research investigates the problems and maps the solutions to the serious threat that plastics pose to the oceans, food safety, and human health, with more than eight million tons of plastic debris dumped in the sea every year. The aim of this study is to explore how to better improve the regulatory process of ocean plastics by integrating scientific results, regulatory strategies and action plans ...