Blar i Institutt for biologi på tittel
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Oriental reed warbler (Acrocephalus orientalis) nest defence behaviour towards brood parasites and nest predators
(Journal article; Peer reviewed, 2015)Brood parasites and predators pose different threats to passerines that may favour the evolution of enemy-specific defence strategies. Furthermore, potential sex-specific variation in parental investment may be manifested ... -
Ornamentation and Characteristics of the Tail in the Male Guppy
(Master thesis, 2014)Male guppies (Poecilia reticulata) show great variation in both shape and coloration of the caudal fin. In some males, an elongation of the caudal fin is present, referred to as a sword. This thesis will mainly focus on ... -
Outcomes of brood parasite-host interactions mediated by egg matching: Common cuckoos Cuculus canorus versus Fringilla finches
(Journal article; Peer reviewed, 2011)Background: Antagonistic species often interact via matching of phenotypes, and interactions between brood parasitic common cuckoos (Cuculus canorus) and their hosts constitute classic examples. The outcome of a parasitic ... -
Outside-in control - does plant cell wall integrity regulate cell cycle progression?
(Journal article; Peer reviewed, 2018)During recent years it has become accepted that plant cell walls are not inert objects surrounding all plant cells but are instead highly dynamic, plastic structures. They are involved in a large number of cell biological ... -
Ova lipid profiling and egg quality in wild and captive lumpfish, Cyclopterus lumpus (Linnaeus, 1758)
(Peer reviewed; Journal article, 2022)Lumpfish (Cyclopterus lumpus) serves an important role as cleaner fish for removing salmon lice in salmon aquaculture. For this use, cultivated lumpfish are preferred over wild-caught fish to avoid overexploitation of ... -
Overlevelse, svømmekapasitet og reinfestasjon hos mobile stadier av lakselus (Lepeophtheirus salmonis) uten vert
(Master thesis, 2024)Norsk lakseoppdrett er en viktig næring i Norge og i 2023 ble det eksportert atlantisk oppdrettslaks til en samlet verdi av 122,5 milliarder NOK. Veksten i næringen har de siste årene stagnert, og en av hovedgrunnene til ... -
Oxidative status and intestinal health of gilthead sea bream (Sparus aurata) juveniles fed diets with different ARA/EPA/DHA ratios
(Peer reviewed; Journal article, 2020)The present work assessed the effects of dietary ratios of essential fatty acids, arachidonic (ARA), eicosapentaenoic (EPA) and docosahexaenoic acid (DHA), on liver and intestine oxidative status, intestinal histomorphology ... -
Oxidative stress effects in the Arctic amphipod Gammarus oceanicus after exposure to the two pharmaceuticals carbamazepine and ibuprofen
(Master thesis, 2024)Legemidler slippes ut i det Arktiske miljøet gjennom avløpsvann og har blitt detektert i Nordishavet og er påvist i invertebrater og plankton i Arktis. Fokuset for denne studien er å finne ut om eksponering av de to ... -
Oxidative stress responses in liver of A/J mice fed an environmentally relevant mixture of perfluoroalkyl substances (PFASs)
(Master thesis, 2021)Recently, the adverse effects of perfluoroalkyl substances (PFASs), have been in the spotlight of several studies. Besides the known tumour inducing and endocrine disrupting characteristics of these chemicals, there has ... -
A pain-causing and paralytic ant venom glycopeptide
(Journal article; Peer reviewed, 2021)Ants (Hymenoptera: Formicidae) are familiar inhabitants of most terrestrial environments. Although we are aware of the ability of many species to sting, knowledge of ant venom chemistry remains limited. Herein, we describe ... -
A paleogenomic investigation of overharvest implications in an endemic wild reindeer subspecies
(Peer reviewed; Journal article, 2024)Overharvest can severely reduce the abundance and distribution of a species and thereby impact its genetic diversity and threaten its future viability. Overharvest remains an ongoing issue for Arctic mammals, which due to ... -
PAMP-INDUCED SECRETED PEPTIDE 3 (PIP3) modulates immunity in Arabidopsis thaliana
(Journal article; Peer reviewed, 2019)Small post-translationally modified peptides are important signalling components of plant defence responses against phytopathogens, acting both as positive and negative modulators. PAMP-INDUCED SECRETED PEPTIDE (PIP) 1 and ... -
Paper product production identified as the main source of per- and polyfluoroalkyl substances (PFAS) in a Norwegian lake: Source and historic emission tracking
(Peer reviewed; Journal article, 2020)The entirety of the sediment bed in lake Tyrifjorden, Norway, is contaminated by per- and polyfluoroalkyl substances (PFAS). A factory producing paper products and a fire station were investigated as possible sources. Fire ... -
Paraprobiotics and postbiotics of probiotic lactobacilli, their positive effects on the host and action mechanisms: A review
(Peer reviewed; Journal article, 2020)Lactobacilli comprise an important group of probiotics for both human and animals. The emerging concern regarding safety problems associated with live microbial cells is enhancing the interest in using cell components and ... -
Parasite escape through trophic specialization in a species flock
(Journal article, 2017)Adaptive radiation occurs when species diversify rapidly to occupy an array of ecological niches. As opportunities for parasite infection and transmission may greatly vary among these niches, adaptive radiation is expected ... -
Parasite prevalence increases with temperature in an avian metapopulation in northern Norway
(Peer reviewed; Journal article, 2019)Climate and weather conditions may have substantial effects on the ecology of both parasites and hosts in natural populations. The strength and shape of the effects of weather on parasites and hosts are likely to change ... -
Parasite–copepod interactions in Svalbard: diversity, host specificity, and seasonal patterns
(Peer reviewed; Journal article, 2022)Copepods of the genera Calanus and Pseudocalanus are important components of Arctic marine ecosystems. Despite the key roles of these zooplankters, little is known about the organisms they interact with most intimately, ... -
Participatory monitoring drives biodiversity knowledge in global protected areas
(Peer reviewed; Journal article, 2023)Protected areas are central in strategies to conserve biodiversity. Effective area-based conservation relies on biodiversity data, but the current biodiversity knowledge base is insufficient and limited by geographic and ... -
Particle characterization and influence on the nauplii and egg production of calanoid copepod (Acartia tonsa Dana) in water treatment systems with and without membrane filtration
(Master thesis, 2014)The calanoid copepod Acartia tonsa has been demonstrated to be able to replace the Artemia or rotifer for marine fish larvae due to its excellent nutrient, wide range of temperature and salinity tolerance and capability ...