Browsing Institutt for biologi by Title
Now showing items 1-20 of 1725
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1H NMR metabolic profiling of cod (Gadus morhua) larvae: potential effects of temperature and diet composition during early developmental stages
(Journal article; Peer reviewed, 2015)Marine aquaculture offers a great source of protein for the increasing human population, and farming of, for example, Atlantic salmon is a global industry. Atlantic cod farming however, is an example of a promising industry ... -
A battle of the mountains: Intraguild competition between arctic fox Vulpes lagopus and red fox Vulpes vulpes
(Master thesis, 2019)Fjellreven (Vulpes lagopus) er en truet art i Fennoskandia. Konkurranse med rødreven (Vulpes vulpes) er regnet som en av hovedtruslene for fjellrevens utbredelse. Flere bevaringstiltak har blitt satt i gang for å redde ... -
A burning question: what are the risks and benefits of mammalian torpor during and after fires?
(Journal article; Peer reviewed, 2018)Although wildfires are increasing globally, available information on how mammals respond behaviourally and physiologically to fires is scant. Despite a large number of ecological studies, often examining animal diversity ... -
A comparative study of diploid versus triploid Atlantic salmon (Salmo salar L.). The effects of rearing temperatures (5, 10 and 15 °C) on raw material characteristics and storage quality
(Journal article; Peer reviewed, 2017)Several major market operators argue that the current level of knowledge about quality is too scant to justify a switch to a large-scale production of triploid salmon. The aim of the present study was, therefore, to elucidate ... -
A Complex Interaction between Rickettsia conorii and Dickkopf-1 - Potential Role in Immune Evasion Mechanisms in Endothelial Cells
(Journal article; Peer reviewed, 2012)The pathophysiological hallmark of spotted fever group rickettsioses comprises vascular inflammation. Based on the emerging importance of the wingless (Wnt) pathways in inflammation and vascular biology, we hypothesized ... -
A comprehensive evaluation of predictive performance of 33 species distribution models at species and community levels
(Journal article; Peer reviewed, 2019)A large array of species distribution model (SDM) approaches has been developed for explaining and predicting the occurrences of individual species or species assemblages. Given the wealth of existing models, it is unclear ... -
A CRISPR/Cas9 system adapted for gene editing in marine algae
(Journal article; Peer reviewed, 2016)Here we report that the CRISPR/Cas9 technology can be used to efficiently generate stable targeted gene mutations in microalgae, using the marine diatom Phaeodactylum tricornutum as a model species. Our vector design opens ... -
A Crude Awakening: Effects of Crude Oil on Lipid Metabolism in Calanoid Copepods Terminating Diapause
(Journal article; Peer reviewed, 2019)Calanus finmarchicus and Calanus glacialis are keystone zooplankton species in North Atlantic and Arctic marine ecosystems because they form a link in the trophic transfer of nutritious lipids from phytoplankton to predators ... -
A Diet Rich in Carbohydrates Induces Changes in Serum microRNA Levels Associated with Type 2 Diabetes Development.
(Master thesis, 2012)It is known that the level of serum microRNAs, small RNA molecules involved in regulation of gene expression, is altered in diabetic patients compared to healthy individuals and that microRNAs may be involved in the ... -
A General Stochastic Dynamic Model of the Differential Allocation Hypothesis
(Master thesis, 2015)Differential allocation (DA), adjusting reproductive investment according to the quality of the current mate, is an area of evolutionary behavioral ecology subject to much confusion, with vague terminology, apparently ... -
A genetic insight to the population of African savannah elephants (Loxodonta africana) in the Serengeti Ecosystem, Tanzania.
(Master thesis, 2011)African savannah elephants play a vital role in the Serengeti ecosystem with the opportunity to alter the entire ecosystem by its sheer number. Management of these animals are therefore of high importance, but little genetic ... -
A global compilation of coccolithophore calcification rates
(Journal article; Peer reviewed, 2018)The biological production of calcium carbonate (CaCO3), a process termed calcification, is a key term in the marine carbon cycle. A major planktonic group responsible for such pelagic CaCO3 production (CP) is the ... -
A high density linkage map enables a second generation collared flycatcher genome assembly and reveals the pattern of avian recombination rate variation and chromosomal evolution.
(Journal article; Peer reviewed, 2014-06-17)Detailed linkage and recombination rate maps are necessary to use the full potential of genome sequencing and population genomic analyses. We used a custom collared flycatcher 50 K SNP array to develop a high-density linkage ... -
A high local species richness and biodiversity within high-latitude calcareous aggregates of tube-building polychaetes
(Journal article; Peer reviewed, 2011) -
A miniature world in decline: European Red List of Mosses, Liverworts and Hornworts
(Book, 2019)This publication has been prepared by IUCN (International Union for Conservation of Nature) as a deliverable of the LIFE European Red Lists project (LIFE14 PRE BE 001). A miniature world in decline: The European Red List ... -
A mixture model approach to sample size estimation in two- sample comparative microarray experiments
(Journal article; Peer reviewed, 2008)Background: Choosing the appropriate sample size is an important step in the design of a microarray experiment, and recently methods have been proposed that estimate sample sizes for control of the False Discovery Rate ... -
A molecular and morphological study of Bivalvia (Phylum: Mollusca) in Norwegian waters, with emphasis on Pectinidae Rafinesque, 1815
(Master thesis, 2019)Art regnes for å være den grunnleggende enheten innenfor biologi. Dette understreker viktigheten av både avgrensning av arter, å finne antall arter og grensen mellom disse, og taksonomi, å navngi, beskrive og klassifisere ... -
A multi-marker metabarcoding approach to study tardigrade diversity in forest ecosystems.
(Master thesis, 2019)Som annen mikroskopisk fauna blir bjørnedyr ofte oversett i økologiske undersøkelser. Med sin kosmopolitiske utbredelse i alt fra sedimenter på havets dyp til høyalpine fjellområder, spiller bjørnedyr viktige roller i mange ... -
A new NDVI measure that overcomes data sparsity in cloud-covered regions predicts annual variation in ground-based estimates of high arctic plant productivity
(Journal article; Peer reviewed, 2018)Efforts to estimate plant productivity using satellite data can be frustrated by the presence of cloud cover. We developed a new method to overcome this problem, focussing on the high-arctic archipelago of Svalbard where ... -
A new Norwegian bioeconomy based on cultivation and processing of seaweeds: Opportunities and R&D needs
(Research report, 2014)