Blar i Institutt for biologi på tittel
Viser treff 2457-2476 av 2514
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Variability in Calanus spp. abundance on fine- to mesoscales in an Arctic fjord: implications for little auk feeding
(Journal article; Peer reviewed, 2014)We studied the abundance of calanoid copepods of the genus Calanus in a high-resolution sampling grid located in the vicinity of a breeding colony of an avian Calanus predator, the little auk (Alle alle) in an Arctic fjord ... -
Variation and correlation in the timing of breeding of North Atlantic seabirds across multiple scales
(Peer reviewed; Journal article, 2022)1. Timing of breeding, an important driver of fitness in many populations, is widely studied in the context of global change, yet despite considerable efforts to identify environmental drivers of seabird nesting phenology, ... -
Variation in basal metabolic rate within bats of the family Vespertilionidae
(Master thesis, 2020)Mange fysiologiske variabler, slik som metabolsk rate, varierer med klima og breddegrad. Det finnes imildertid lite informasjon om termoregulering i flaggermus ved høye breddegrader. Derfor undersøkte jeg de termoregulerende ... -
Variation in chemical composition and genetic differentiation among bilberry (Vaccinium myrtillus L.) populations on a latitudinal gradient
(Master thesis, 2011)Bilberry (Vaccinium myrtillus) is native to Europe and North America and constitutes an important nutritional resource for both humans and animals. Over the years, a series of chemical analyses have revealed several ... -
Variation in generation time reveals density regulation as an important driver of pace of life in a bird metapopulation
(Journal article; Peer reviewed, 2021)Generation time determines the pace of key demographic and evolutionary processes. Quantified as the weighted mean age at reproduction, it can be studied as a life-history trait that varies within and among populations and ... -
Variation in MHC genotypes in two populations of house sparrow (Passer domesticus) with different population histories
(Journal article; Peer reviewed, 2011)Small populations are likely to have a low genetic ability for disease resistance due to loss of genetic variation through inbreeding and genetic drift. In vertebrates, the highest genetic diversity of the immune system ... -
Variation in predation and nest survival rates in the Arctic breeding Common Eider (Somateria mollissima)
(Master thesis, 2019)Flere migrerende sjøfuglarter hekker i arktiske områder for å kunne utnytte fordelaktige aspekter ved miljøet i form av overlevelse eller reproduksjon. Tidligere studer har antydet minkende predasjonsrisiko med økende ... -
VARIATION IN PREVALENCE OF INVERTEBRATE HERBIVORY AMONG NATIVE AND NON-NATIVE PLANT SPECIES IN A BOTANICAL GARDEN.
(Master thesis, 2022)Planteeting er en sentral økosystemprosess som påvirker det strukturelle mangfoldet av vegetasjon gjennom direkte forbruk av plantevevet og indirekte endrer stabiliteten til økosystemene. Invertebrate planteetere oppveier ... -
Variation in recruitment failure of moose (Alces alces) - any effects of population condition and climate?
(Master thesis, 2011)Summary1. Recruitment failure may represent an important demographic response to changes in the environment or in population size. In this study, I examined whether there was a positive relationship between recruitment ... -
Variation in the ontogenetic allometry of horn length in bovids along a body mass continuum
(Peer reviewed; Journal article, 2020)Allometric relationships describe the proportional covariation between morphological, physiological, or life-history traits and the size of the organisms. Evolutionary allometries estimated among species are expected to ... -
Varying disease-mediated selection at different life-history stages of Atlantic salmon in fresh water
(Journal article; Peer reviewed, 2011)Laboratory studies on associations between disease resistance and susceptibility and major histocompatibility (MH) genes in Atlantic salmon Salmo salar have shown the importance of immunogenetics in understanding the ... -
Vedlegg til rapport: Interaksjoner mellom havbruk og ville marine organismer - En kunnskapsoppsummering
(Research report, 2013)Havbruk er en viktig næring både i Norge og i resten av verden. Siden den globale matproduksjonen må øke i framtiden er det rimelig å anta at havbruksnæringen også vil bli større. Det anses som generelt viktig at havbruk ... -
Vegetation change on mountaintops in northern Sweden: Stable vascular-plant but reordering of lichen and bryophyte communities
(Peer reviewed; Journal article, 2022)Alpine ecosystems harbor remarkably diverse and distinct plant communities that are characteristically limited to harsh, and cold climatic conditions. As a result of thermal limitation to species occurrence, mountainous ... -
Vegetation response to climate warming across the forest–tundra ecotone: species-dependent upward movement
(Peer reviewed; Journal article, 2020)Questions Rising temperatures are predicted to cause upward shifts and reorganisation of mountain vegetation. This study analyses how field layer vegetation across the forest–tundra ecotone has responded over a 22‐year ... -
Verdien av miRNA som biomarkør for kreft i prostata: Optimalisering av metode for RNA-isolering av formalinfiksert parafininnstøpt vev, samt undersøkelse av miRNA-uttrykk i ulik grad av prostatakreft
(Master thesis, 2012)Prostatakreft er den kreftformen som hyppigst rammer norske menn og dødelighet på grunn av avansert kreft i prostata er et klinisk problem. For å forstå molekylære ulikheter som skiller progressiv sykdom fra ikke-progressiv ... -
Vigilance Behaviour of Wild Herbivores when Foraging With or Without Livestock.
(Journal article, 2019)In African savannas, and many other rangelands around the world, wildlife presently find themselves interacting with livestock. Many studies have been conducted on vigilance behaviour in response to presence of predators ... -
Virkningen av økte næringssaltutslipp fra akvakultur på strukturen i planteplanktonsamfunnet
(Master thesis, 2013)Et mesokosmeforsøk ble gjennomført over 20 dager i Hopavågen, Sør-Trøndelag. Forsøket ble startet under en typisk sensommer med resirkulerte næringsstoffer i et stratifisert vannlag (~10 m) og dominans av dinoflagellater ... -
A vision for safer food contact materials: Public health concerns as drivers for improved testing
(Peer reviewed; Journal article, 2023)Food contact materials (FCMs) and food contact articles are ubiquitous in today’s globalized food system. Chemicals migrate from FCMs into foodstuffs, so called food contact chemicals (FCCs), but current regulatory ...