Blar i Institutt for biologi på tittel
Viser treff 2438-2457 av 2516
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Urban aliens and threatened near-naturals: Land-cover affects the species richness of alien- and threatened species in an urban-rural setting
(Peer reviewed; Journal article, 2020)Urbanisation has strong effects on biodiversity patterns, but impacts vary among species groups and across spatial scales. From a local biodiversity management perspective, a more general understanding of species richness ... -
Urbanisation and land-cover change affect functional, but not compositional turnover of bird communities
(Peer reviewed; Journal article, 2023)Liver sinusoidal endothelial cells (LSECs) are fenestrated endothelial cells with a unique, high endocytic clearance capacity for blood-borne waste macromolecules and colloids. This LSEC scavenger function has been ... -
Urbanization erodes niche segregation in Darwin's finches
(Journal article; Peer reviewed, 2018)Urbanization is influencing patterns of biological evolution in ways that are only beginning to be explored. One potential effect of urbanization is in modifying ecological resource distributions that underlie niche ... -
Use of an Autonomous Surface Vehicle reveals small-scale diel vertical migrations of zooplankton and susceptibility to light pollution under low solar irradiance
(Journal article; Peer reviewed, 2018)Light is a major cue for nearly all life on Earth. However, most of our knowledge concerning the importance of light is based on organisms’ response to light during daytime, including the dusk and dawn phase. When it is ... -
Use of different imaging systems for ROV-based mapping of complex benthic habitats
(Master thesis, 2022)Denne studien bruker mini-ROV-er, små fjernstyrte kjøretøyer som bærer kameraer med forskjellige egenskaper som undervanns hyperspektral avbildning (UHI) og høy-definisjon (HD) rød, grønn og blå (RGB) kameraer for å kartlegge ... -
Use of fatty acid profiles to monitor the escapehistory of farmed Atlantic salmon
(Journal article; Peer reviewed, 2015)Farmed Atlantic salmon can escape from fish farms at various stages of their life, from juveniles to large mature fish. Escapees that enter rivers to spawn pose a threat to the genetic integrity of wild populations. ... -
Use of probiotics in aquaculture of China—a review of the past decade
(Peer reviewed; Journal article, 2019)China is the largest aquaculture producer in the world. Antibiotics were extensively used to ensure the development of the intensive aquaculture; however, the use of antibiotics causes safety- and environment-associated ... -
Use of Pulse Amplitude Modulated (PAM) Fluorescence and Bio-optics for Assessing Microalgal Photosynthesis and Physiology
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:183, Doctoral thesis, 2011)This thesis puts emphasis on an evaluation of the Pulse Amplitude Modulated (PAM) fluorescence (that is, the in vivo variable Chl a fluorescence) as non-invasive means to estimate the oxygen evolution rate. The estimated ... -
Use of Wastewater from Recirculating Aquaculture System (RAS) for Cultivation of Microbial Biofilm Communities
(Master thesis, 2023)Den økende etterspørselen etter bærekraftig mat kan delvis løses ved produksjon av akvatiske arter i resirkulerende akvakultursystemer (RAS). I norsk havbruksnæring blir atlantisk laks (Salmo salar) ofte klekket og kultivert ... -
Use, selection, and home range properties: complex patterns of individual habitat utilization
(Journal article; Peer reviewed, 2019)Individual patterns of habitat use emerge from behavioral decisions driven by interactions between landscape characteristics and individual traits. Individual traits, such as age and sex, influence the net gain of using ... -
Using an apex predator for large-scale monitoring of trace element contamination: Associations with environmental, anthropogenic and dietary proxies
(Journal article; Peer reviewed, 2019)Understanding the levels and drivers of contamination in top predators is important for their conservation and eventual use as sentinels in environmental monitoring. Therefore, metals and trace elements were analyzed in ... -
Using ecological context to interpret spatiotemporal variation in natural selection
(Peer reviewed; Journal article, 2020)Spatiotemporal variation in natural selection is expected, but difficult to estimate. Pollinator‐mediated selection on floral traits provides a good system for understanding and linking variation in selection to differences ... -
Using morphology and DNA barcoding to assess species diversity within the isopod genera Jaera Leach, 1814, Janira Leach, 1814 and Idotea Fabricius, 1798 in Norway
(Master thesis, 2021)Foreningen av morfologiske undersøkelser og DNA strekkoding, vil for mange regnes som de mest sentrale metodene i moderne studier om biodiversitet. Sammen har disse metodene stor kapasitet til å gi ny kunnskap og innsikt ... -
Using Tea Bag index to examine the effects of ditching in boreal peatlands
(Master thesis, 2021)Menneskelige inngrep har ofte dårlige konsekvenser for myrer, som oftest grunnet grøfting. Vi har studert hvordan grøfting påvirker nedbrytningsraten i det nærliggende området gjennom et transekt studie i en ombrotrof ... -
Utilization of excess nutrients from land-based aquaculture facilities by Hediste diversicolor (O.F. Müller, 1776) - Production of polychaete biomass and its potential use in fish feed
(Master thesis, 2017)Farming of Atlantic salmon (Salmo salar) is highly dependent on marine resources such as fish meal and fish oil. In Norway, supply of high quality raw materials and control of waste discharges from aquaculture are factors ... -
Utilization of the polychaete Hediste diversicolor (O.F. Millier, 1776) in recycling waste nutrients from land-based fish farms for valueadding applications'
(Doctoral theses at NTNU;2020:133, Doctoral thesis, 2020)Aquaculture has become one of the world’s fastest growing food production industries to meet the nutrient demand of the growing human population. Atlantic salmon, which accounts for 4% of the global marine fish production, ... -
Uttrykk og betydning av GRP78 i myelomceller
(Master thesis, 2014)Myelomatose, også kjent som beinmargskreft, er en hematologisk malign sykdom i antistoffproduserende plasmaceller i beinmargen. Kreftsykdommen er fortsatt uhelbredelig, og resistensutvikling mot medikamenter er en stor ... -
Utvidet studie av PLA2-uttrykk i HaCaT-keratinocytter: .
(Master thesis, 2011)I denne masteroppgaven har det blitt utviklet primerpar for 17 humane PLA2-isotyper. Ved hjelp av primerene har vi påvist uttrykk av 17 PLA2-isotyper i HaCaT-keratinocytter, hvorav 11 av disse representerer førstegangspåvisninger ... -
Utvikling og optimalisering av protokoll for massespektrometrisk metabolsk profilering av adherente humane celler
(Master thesis, 2012)I metabolomikk er målet å kvantifisere alle metabolitter i et biologisk system i en definert tilstand, på et bestemt tidspunkt. For å oppnå dette er en god protokoll for prøveopparbeidelse og analyse essensielt. Flere ... -
UV reflectance as a cue in egg discrimination in two Prinia species exploited differently by brood parasites in Taiwan
(Journal article, 2013)Birds are capable of seeing the ultraviolet light (UV) spectrum and as a consequence have evolved UV-reflective structures with signalling functions. Avian eggs also reflect in the UV spectrum but the importance of UV egg ...