Blar i Department of Biological Sciences på tittel
Viser treff 862-881 av 2290
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Food uptake, lipid transport and vitellogenesis in the sea anemone Nematostella vectensis
(Doctoral thesis, 2021-09-20)Balancing energy input and output is crucial for the survival of all organisms, and involves the coordination of many physiological processes such as food uptake, nutrient storage, reproduction and growth. The uptake of ... -
Food web functions and interactions during spring and summer in the arctic water inflow region: Investigated through inverse modeling
(Peer reviewed; Journal article, 2019-05-28)We used inverse modeling to reconstruct major planktonic food web carbon flows in the Atlantic Water inflow, east and north of Svalbard during spring (18–25 May) and summer (9–13 August), 2014. The model was based on three ... -
Foraging behaviour of larval cod (Gadus morhua) at low light intensities
(Peer reviewed; Journal article, 2011-02-13)The ability to forage at lowlight intensities can be of great importance for the survival of fish larvae in a pelagic environment. Three-dimensional silhouette imaging was used to observe larval cod foraging and swimming ... -
Foraging ecology and learning. Adaptive behavioural strategies and the value of information
(Doctoral thesis, 2006-12-12)All animals face the challenge of acquiring resources for growth, survival, and reproduction. In environments that vary in time and space, foragers need to make apparently complex foraging decisions on which prey to select, ... -
Foraging success in planktivorous fish increases with topographic blockage of prey distributions
(Journal article; Peer reviewed, 2020)Banks and shelves are productive zones of the ocean, and often home to large fish stocks. Can shallower bottom topographies improve foraging opportunities for pelagic fish by blocking zooplankton from hiding in deep, darker ... -
Foraging tactics in dynamic sea-ice habitats affect individual state in a long-ranging seabird
(Journal article; Peer reviewed, 2020)1. Individual heterogeneity in diet and foraging behaviour is common in wild animal populations, and can be a strong determinant of how populations respond to environmental changes. Within populations, variation in foraging ... -
Forest fragmentation modifes the composition of bumblebee communities and modulates their trophic and competitive interactions for pollination
(Journal article; Peer reviewed, 2020)Understanding the effects of landscape fragmentation on global bumblebee declines requires going beyond estimates of abundance and richness and evaluating changes in community composition and trophic and competitive ... -
Forkunnskaper i biologiundervisningen: En kvalitativ studie av læreres begrunnelse for hvorfor og hvordan man kan inkludere elevers forkunnskaper i undervisningen
(Master thesis, 2018-06-27)Studien handler om læreres forståelse av temaet forkunnskaper: hvorfor er det viktig å inkludere den kunnskapen elevene besitter, samt metoder for hvordan man kan inkludere denne kunnskapen. Inkludering av forkunnskaper ... -
Forståelse av naturlig seleksjon - En kvantitativ undersøkelse av elevers og studenters misoppfatninger knyttet til naturlig seleksjon ved bruk av Diagnostisk Test av Naturlig Seleksjon
(Master thesis, 2023-06-02)Forståelse av naturlig seleksjon og evolusjon kan gi elever og studenter en dypere innsikt i sammenhenger i naturen og hvor viktig det er å bevare det biologiske mangfoldet. Imidlertid er det mange misoppfatninger knyttet ... -
Fossil pollen and spores as a tool for reconstructing ancient solar-ultraviolet irradiance received by plants: an assessment of prospects and challenges using proxy-system modelling
(Peer reviewed; Journal article, 2019)Ultraviolet-B radiation (UV-B, 280–315 nm) constitutes less than 1% of the total solar radiation that reaches the Earth's surface but has a disproportional impact on biological and ecological processes from the individual ... -
Fractal hypothesis of the pelagic microbial ecosystem-can simple ecological principles lead to self-similar complexity in the pelagic microbial food web?
(Peer reviewed; Journal article, 2015-12-01)Trophic interactions are highly complex and modern sequencing techniques reveal enormous biodiversity across multiple scales in marine microbial communities. Within the chemically and physically relatively homogeneous ... -
A framework for the development of a global standardised marine taxon reference image database (SMarTaR-ID) to support image-based analyses
(Peer reviewed; Journal article, 2019-12-31)Video and image data are regularly used in the field of benthic ecology to document biodiversity. However, their use is subject to a number of challenges, principally the identification of taxa within the images without ... -
Francisella philomiragia subsp. noatunensis i torskeleukocytter
(Master thesis, 2009-06-22)Det er velkjent at en rekke intracellulære bakterier, inkludert flere arter innen slekten Francisella, har evne til å oppholde seg og formere seg i immuncellene. I dette studiet ble det utført smitteforsøk in vitro der det ... -
Fresh- or seawater eels, or mixed life history strategies: what do the parasites tell?
(Master thesis, 2020-07-08) -
Freshwater small pelagic fish and fisheries in the main African great lakes and reservoirs in relation to food security and nutrition
(Research report, 2019)This paper reviews the status and importance of the freshwater small pelagic fish and fisheries for sustainable healthy livelihoods in Africa. The lack of recognition of the importance of small pelagic fish for the sustenance, ... -
From a crisis to an opportunity: Eight insights for doing science in the COVID‐19 era and beyond
(Journal article; Peer reviewed, 2020)The COVID-19 crisis has forced researchers in Ecology to change the way we work almost overnight. Nonetheless, the pandemic has provided us with several novel components for a new way of conducting science. In this perspective ... -
From complex to simple: Myogenesis in an aplacophoran mollusk reveals key traits in aculiferan evolution
(Peer reviewed; Journal article, 2015-09-18)Background: Recent studies suggest a bifurcation at the base of Mollusca, resulting in the primarily single-shelled Conchifera (Bivalvia, Gastropoda, Scaphopoda, Monoplacophora, Cephalopoda) and the spicule-bearing Aculifera ... -
From notochord to vertebral column: studies on Atlantic salmon (Salmo salar L.)
(Doctoral thesis, 2007-05-11)The notochord initially form a single-cell file stage of chordoblasts covered by a three layered sheath comprising a basal lamina, a main collagenous layer and an external elastic membrane. During early ontogeny, the ...