Blar i Institutt for biologi på tittel
Viser treff 1735-1754 av 2526
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Photobioreactor time-series of a simulated bloom of Emiliania huxleyi
(Master thesis, 2009) -
Photoperiodism and overwintering in boreal and sub-Arctic Calanus finmarchicus populations
(Journal article, 2023)ABSTRACT: The copepod Calanus finmarchicus, a key species in the North Atlantic, generally spends the non-productive season by descending into deep waters and entering diapause, a physiological state characterized by reduced ... -
Photophysiological cycles in Arctic krill are entrained by weak midday twilight during the Polar Night
(Peer reviewed; Journal article, 2021)Light plays a fundamental role in the ecology of organisms in nearly all habitats on Earth and is central for processes such as vision and the entrainment of the circadian clock. The poles represent extreme light regimes ... -
Photophysiologically active green, red, and brown macroalgae living in the Arctic Polar Night
(Peer reviewed; Journal article, 2023)Abstract: Arctic macroalgae species have developed different growth strategies to survive extreme seasonal changes in irradiance in polar regions. We compared photophysiological parameters such as the light saturation ... -
Photosynthetic Response to increasing Temperatures - a Comparison between prostrate and erect alpine Shrubs
(Master thesis, 2015)As a response to climate change, shrub biomass has increased in alpine and arctic tundra ecosystems. Substantial shrub encroachment can lead to changes in carbon fluxes, due to a shift in community compositions and functional ... -
Photosynthetic responses as a function of light and temperature: Field and laboratory studies on marine microalgae
(Doktoravhandlinger ved NTNU, 1503-8181; 2007:111, Doctoral thesis, 2007)The aim of my thesis is to elucidate the different pathways of light in the marine environment, from underwater irradiance to the absorption of photons in microalgae. The pathway is followed through light harvesting and ... -
Photosynthetic Responses of maize (Zea mays L.) seedlings to heat and drought stress
(Master thesis, 2017)Like all other plants, maize (Zea mays L.) depends on the environment for growth. It is also an important food source for the continuously increasing human population. However, due to the recent changes in climate, maize ... -
Phototaxis in Calanusfinmarchicus – light sensitivity and the influence of energy reserves and oil exposure
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:376, Doctoral thesis, 2013) -
Phthalate metabolites in harbor porpoises (Phocoena phocoena) from Norwegian coastal waters
(Journal article; Peer reviewed, 2020)The exposure of marine mammals to phthalates has received considerable attention due to the ubiquitous occurrence of these pollutants in the marine environment and their potential adverse health effects. The occurrence of ... -
Phylogenetic analyses suggest centipede venom arsenals were repeatedly stocked by horizontal gene transfer
(Peer reviewed; Journal article, 2021)Venoms have evolved over a hundred times in animals. Venom toxins are thought to evolve mostly by recruitment of endogenous proteins with physiological functions. Here we report phylogenetic analyses of venom proteome-annotated ... -
Phylogenetic analysis of the genus Paratanytarsus (Diptera: Chironomidae)
(Master thesis, 2012)The non-biting midges (Chironomidae) are among of the most successful insects in freshwater systems and often dominate in abundance and species richness. The genus Paratanytarsus contains species from all biogeographic ... -
Phylogenetic Diversity of Arctic Vertebrate Herbivores
(Master thesis, 2017)Understanding spatial diversity patterns, and factors shaping these patterns, is crucial for conservation planning, and is particularly important in areas undergoing severe climatic change. Traditionally, spatial diversity ... -
Phylogeny and Cryptic Diversity of Diopatra (Onuphidae, Annelida) in the East Atlantic
(Journal article; Peer reviewed, 2022)Diopatra Audouin & Milne-Edwards, 1833 is a species rich genus that is common in tropical and subtropical regions. The genus is readily identified by its striking, spiral branchiae, but species identification has historically ... -
Phylogeography of a ‘great speciator’ (Aves: Edolisoma tenuirostre) reveals complex dispersal and diversification dynamics across the Indo-Pacific
(Journal article; Peer reviewed, 2018)Aim: We derive a new phylogenetic framework of the Indo-Pacific avian genus Edolisoma based on a dense taxon sampling and use it in an explicit spatiotemporal framework to understand the history of intraspecific diversification ... -
Phylogeography of the European adder: Investigating a rare phenotype in an isolated island population
(Master thesis, 2022)Color polymorphism and the genetic basis driving pattern variation in ectothermic squamates is greatly under-studied outside of melanocytes. Variation in color and pattern evolution in wild populations of squamates is a ... -
Phylogeography of the prehensile tailed skink Corucia zebrata on the Solomon Archipelago
(Journal article; Peer reviewed, 2012)The biogeography of islands is often strongly influenced by prior geological events. Corucia zebrata (Squamata: Scincidae) is endemic to the geologically complex Solomon Archipelago in Northern Melanesia. We examined the ... -
Phylogeography of the threatened peat moss Sphagnum wulfianum Girg. with emphasis on northern Europe
(Master thesis, 2010)The species distribution in northern Europe is influenced by the last glaciation. An increasing number of phylogeographic studies reveal possible glacial refugia and colonization pattern for different species, however, ... -
Physical activity tracking - Personal activity intelligence (PAI) versus 10000 steps per day and the effects on cardiorespiratory fitness, body composition and blood pressure in inactive overweight and obese
(Master thesis, 2018)Increased amounts of sedentary time, and less physical activity (PA) have become a global concern, and may result in increased risk of cardiovascular disease (CVD). Thus, it has become an important task to increase PA in ... -
Physical controls on phytoplankton size structure, photophysiology and suspended particles in a Norwegian biological hotspot
(Peer reviewed; Journal article, 2019)The impact of the physical environment and phytoplankton size on particle types (zooplankton, biogenic matter or phytodetritus) in the water column is poorly understood. Here, we investigate how hydrography (e.g. water ... -
Physiological and behavioral adaptations of impala to anthropogenic disturbances in the Serengeti ecosystems
(Doctoral theses at NTNU;2020:150, Doctoral thesis, 2020)Anthropogenic activities are causing biodiversity loss at an unprecedented rate and attempts to ameliorate our impacts have largely failed. This thesis aimed to contribute to our understanding of how anthropogenic activities ...