Blar i Institutt for biologi på tittel
Viser treff 1735-1754 av 2571
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Partikkelutslipp fra skiferindustri i Drivavassdraget. Undersøkelser av påvirkning på fisk og bunndyr.
(NINA rapport;1040, Research report, 2014)Drivavassdraget har bestander av sjøvandrende laksefisk på en om lag 85 kilometer lang elvestrekning mellom Sunndalsøra og absolutt vandringshinder 580 meter over havet i Drivdalen. Etter at lakseparasitten Gyrodactylus ... -
Paths towards greater consensus building in experimental biology
(Peer reviewed; Journal article, 2022)In a recent editorial, the Editors-in-Chief of Journal of Experimental Biology argued that consensus building, data sharing, and better integration across disciplines are needed to address the urgent scientific challenges ... -
Pathways of Lipid Metabolism in Marine Algae, Co-Expression Network, Bottlenecks and Candidate Genes for Enhanced Production of EPA and DHA in Species of Chromista
(Journal article; Peer reviewed, 2013)The importance of n-3 long chain polyunsaturated fatty acids (LC-PUFAs) for human health has received more focus the last decades, and the global consumption of n-3 LC-PUFA has increased. Seafood, the natural n-3 LC-PUFA ... -
Pattern and distribution of human-elephant conflicts in three conflict-prone landscapes in Myanmar
(Peer reviewed; Journal article, 2021)Human-elephant conflicts (HEC) are detrimental for both humans and elephants. A better understanding of HEC enhances effective mitigation strategies and promotes the wellbeing of humans and wild elephants. This study ... -
Patterns and Drivers of Phylogenetic Diversity and Endemism in the Norwegian Vascular Flora
(Master thesis, 2018)Biodiversity is commonly measured as the local abundance of discrete species. This approach fails to incorporate evolutionary relationships among species and gives an incomplete picture of the diversity in a given region. ... -
Patterns and relationships of the distribution of arctic and boreal forest herbivores: A three-dimensional approach.
(Master thesis, 2019)Biodiversity is a complex concept that presents three primary facets: genetic, species and ecological diversity. However, biodiversity is usually viewed and valued in terms of the number of discrete species present. This ... -
Patterns in spatial and temporal variation in population abundances of vertebrates
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:163, Doctoral thesis, 2013)In this thesis I investigate the heterogeneity of population abundance by using the Taylor’s power law relationship of mean and variance, in time and space. Within the framework of stochastic population dynamics, the ... -
Patterns of Distribution of Paspalum species along environmental gradients landscapes in the Nicaraguan Dry Tropical Forest
(Master thesis, 2012)How the patterns of distribution of 4 Paspalum species in Nicaragua, are affected by environmental variables at different scales. -
Patterns of Exchange of Multiplying Onion (Allium cepa L. Aggregatum-Group) in Fennoscandian Home Gardens
(Journal article; Peer reviewed, 2018)Multiplying onion (Allium cepa L. Aggregatum-Group), commonly known as shallot or potato onion, has a long tradition of cultivation in Fennoscandian home gardens. During the last decades, more than 80 accessions, maintained ... -
Pelagic occurrences of the ice amphipod Apherusa glacialis throughout the Arctic
(Journal article; Peer reviewed, 2020)Apherusa glacialis is a common, sea ice-associated amphipod found throughout the Arctic Ocean and has long been considered permanently associated with the sea ice habitat. However, pelagic occurrences of A. glacialis have ... -
Pelagic organisms avoid white, blue, and red artificial light from scientific instruments
(Journal article; Peer reviewed, 2021)In situ observations of pelagic fish and zooplankton with optical instruments usually rely on external light sources. However, artificial light may attract or repulse marine organisms, which results in biased measurements. ... -
A peptide toxin in ant venom mimics vertebrate EGF-like hormones to cause long-lasting hypersensitivity in mammals
(Peer reviewed; Journal article, 2022)Venoms are excellent model systems for studying evolutionary processes associated with predator–prey interactions. Here, we present the discovery of a peptide toxin, MIITX2-Mg1a, which is a major component of the venom of ... -
Per- and poly-fluoroalkyl substances in Tawny Owl (Strix aluco) feathers from Trøndelag, Norway
(Journal article; Peer reviewed, 2023)Per- and polyfluoroalkyl substances (PFASs) are contaminants of global concern due to their ubiquitous occurrence in the environment, bioaccumulation and the adverse effects on organisms. Tawny Owls (Strix aluco) are ... -
Per- and polyfluoroalkyl substances (PFAS) in ski products: Environmental contamination, bioaccumulation and effects in rodents
(Doctoral theses at NTNU;2021:328, Doctoral thesis, 2021)Per- and polyfluoroalkyl substances (PFAS) are a group of anthropogenic contaminants that are widespread in the environment. Due to the strong persistency and water and lipid repellency, PFAS have been used in a wide range ... -
Per- and polyfluoroalkyl substances (PFASs) concentrations over the laying sequence in eggs of the common eider (Somateria mollissima) from the Baltic Sea in relation to sex steroid hormones
(Master thesis, 2022)Abstract will be available on 2023-06-01 -
Per- and polyfluoroalkyl substances effects on thyroid hormone homeostasis in plasma samples of grey seal (Halichoerus grypus) pups from Norway
(Master thesis, 2023)Havert (Halichoerus grypus) er et marint pattedyr som har kasteplass på Froan langs Norskekysten. De siste årene har antallet selunger født på disse øyene sunket. Siden havert er et rovdyr på toppen av næringskjeden, er ... -
Per- and polyfluoroalkyl substances in plasma and feathers of nestling birds of prey from northern Norway
(Journal article; Peer reviewed, 2017)Plasma samples from nestlings of two top predators, White‐tailed eagle (Haliaeetus albicilla) and Northern goshawk (Accipiter gentilis) from northern Norway were analysed for a wide range of PFASs. Body feathers from the ... -
Perfluorinated substances and telomeres in an Arctic seabird: Cross-sectional and longitudinal approaches
(Journal article; Peer reviewed, 2017)Telomeres are non-coding DNA repeats located at the termini of eukaryotic chromosomes, regulated by dynamic processes balancing shortening and maintenance. Despite a mechanism to slow-down telomere shortening, cell division ... -
Perfluoroalkyl and Polyfluoroalkyl Substances (PFASs) Affect the Thyroid Hormone System, Body Condition, and Body Mass in Two Arctic Seabird Species
(Master thesis, 2015)Perfluoroalkyl and polyfluoroalkyl substances (PFASs) are being transported into the Arctic where they are frequently detected in wildlife. These compounds are suspected thyroid hormone (TH) disruptors due to their structural ... -
Perfluoroalkyl substances (PFASs) in white whales (Delphinapterus leucas) from Svalbard – A comparison of concentrations in plasma sampled 15 years apart
(Peer reviewed; Journal article, 2020)The objective of the present study was to investigate recent concentrations of perfluoroalkyl substances (PFASs) in white whales (Delphinapterus leucas) from Svalbard and compare them to concentrations found in white whales ...