Blar i Department of Biological Sciences på tittel
Viser treff 1075-1094 av 2225
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Impact of Nitrogen Deposition on Species Richness and Species Composition of Ombrotrophic Mires in Western Norway
(Master thesis, 2013-07-09)There is almost no research on ombrotrophic mire vegetation and the possible impact of atmospheric nitrogen deposition on species richness and composition in Norway. It is important to detect whether N deposition is impacting ... -
Impacts of predation by Eurasian otters on Atlantic salmon in two Norwegian rivers
(Journal article; Peer reviewed, 2023)1. The return of the Eurasian otter (Lutra lutra) to western Norway has sparked human–predator conflicts because otters prey on vulnerable Atlantic salmon (Salmo salar) populations. Although predation may not be the ultimate ... -
Implications for introgression: Has selection for fast growth altered the size threshold for precocious male maturation in domesticated Atlantic salmon?
(Peer reviewed; Journal article, 2018-12-18)Background: Mature male parr (MMP) represent an important alternative life-history strategy in Atlantic salmon populations. Previous studies indicate that the maturation size threshold for male parr varies among wild ... -
Implications of a changing Arctic on microbial communities: Following the effects of thawing permafrost from land to sea
(Doctoral thesis, 2018-06-14)Climate change has severe impacts in the Arctic, where permafrost is thawing, glaciers are retreating and sea ice is melting. These physical changes are not only affecting large predators like polar bears, but also microscopic ... -
The importance of Biotic vs. Abiotic drivers of local plant community composition along regional bioclimatic gradients
(Peer reviewed; Journal article, 2015-06-19)We assessed if the relative importance of biotic and abiotic factors for plant community composition differs along environmental gradients and between functional groups, and asked which implications this may have in a ... -
The importance of feeding in determining the sensitivity of benthic invertebrates to future climate change in the tunicate species Ciona intestinalis
(Master thesis, 2016-03-14)Anthropogenically induced global climate change is one of the worlds biggest threats today, with marine ecosystems particularly vulnerable. In the future, the ocean temperature is expected to rise with 2 °C followed by a ... -
The importance of microbiota and terrestrial inflows in controlling seston C:N:P:O:Si:Ca:Mn:Mg:Fe:K:Na:Cl:S:Cu:Zn stoichiometry of a deep coastal fjord
(Journal article; Peer reviewed, 2022)Comprehensive fjord-systems represent major extensions of the coastline and are therefore important transfer zones of materials from land to ocean. Despite increased terrestrial inflows to fjords due to climate changes, ... -
The importance of plant macrofossils in the reconstruction of Lateglacial vegetation and climate: examples from Scotland, western Norway, and Minnesota, USA
(Peer reviewed; Journal article, 2003-03)Lateglacial and early Holocene (ca 14–9000 14C yr BP; 15–10,000 cal yr BP) pollen records are used to make vegetation and climate reconstructions that are the basis for inferring mechanisms of past climate change and for ... -
The importance of social dimension and maturation stage for the probabilistic maturation reaction norm in Poecilia reticulata
(Peer reviewed; Journal article, 2013-10-01)Maturation is an important event in an organism's life history, with important implications on dynamics of both wild and captive populations. The probabilistic maturation reaction norm (PMRN) has emerged as an important ... -
The importance of social dimension and maturation stage for the probabilistic maturation reaction norm in Poecilia reticulata
(Peer reviewed; Journal article, 2013-10)Maturation is an important event in an organism's life history, with important implications on dynamics of both wild and captive populations. The probabilistic maturation reaction norm (PMRN) has emerged as an important ... -
The importance of vegetation functional composition in mediating climate change impacts on ecosystem carbon dynamics in alpine grasslands
(Doctoral thesis, 2018-11-08)Climate is changing around the world, and because temperature and water are key drivers of many ecosystem processes this is expected to have significant effects on ecosystem processes and functioning, including ecosystem ... -
The important role of sponges in carbon and nitrogen cycling in a deep-sea biological hotspot
(Journal article; Peer reviewed, 2022)Deep-sea sponge grounds are hotspots of biodiversity, harbouring thriving ecosystems in the otherwise barren deep sea. It remains unknown how these sponge grounds survive in this food-limited environment. Here, we unravel ... -
Improbable but true: the invasive inbreeding ambrosia beetle Xylosandrus morigerus has generalist genotypes
(Peer reviewed; Journal article, 2012-01)The wide distribution and dominance of invasive inbreeding species in many forest ecosystems seems paradoxical in face of their limited genetic variation. Successful establishment of invasive species in new areas is ... -
Improved density measurements of mesopelagic fish and the presence of physonect siphonophores in sound scattering layers, measured with multifrequency acoustics and a stereo camera mounted on a lowered probe
(Master thesis, 2018-12-11)The mesopelagic layer is a massive layer of biomass which stretches from 200-1000 meters depth in almost all locations of the world oceans. These layers are inhabited by many groups of animals, from small zooplankton to ... -
Improving Salmonid Monitoring by Nocturnal Counting in Rivers
(Journal article; Peer reviewed, 2022)Accurate abundance estimates are crucial for evidence-based fisheries management. In rivers, drift dive counting and electrofishing are commonly used for quantifying fish abundance. However, the likelihood that fish are ... -
Improving size selection in the Norwegian red king crab (Paralithodes camtschaticus) fishery through modification to pot design and soak time
(Journal article; Peer reviewed, 2023)Red king crab (Paralithodes camtschaticus) represent a valuable inshore fisheries resource for communities in northern Norway. The fishery is regulated east of the 26th meridian by vessel quotas and a minimum landing size ... -
In lumpfish We Trust? The Efficacy of Lumpfish Cyclopterus lumpus to Control Lepeophtheirus salmonis Infestations on Farmed Atlantic Salmon: A Review
(Journal article; Peer reviewed, 2022)In this review, we have systematized current knowledge about the effect of stocking lumpfish (Cyclopterus lumpus) as cleaner fish to control Lepeophtheirus salmonis infestations on farmed Atlantic salmon (Salmo salar L.). ... -
In situ hybridisering for deteksjon av cytokrom P450 1A i presisjonskuttede leverskiver (PCLS) fra atlanterhavstorsk (Gadus morhua)
(Master thesis, 2016-06-01)Marine arter og økosystemer blir utsatt for menneskeskapte stoffer fra en rekke ulike kilder. Siden de biologiske effektene for mange av disse stoffene ikke er godt karakterisert er det derfor behov for gode og effektive ... -
In the dark: a review of ecosystem processes during the Arctic polar night
(Peer reviewed; Journal article, 2015-08-28)Several recent lines of evidence indicate that the polar night is key to understanding Arctic marine ecosystems. First, the polar night is not a period void of biological activity even though primary production is close ... -
In vitro assessment of protein digestibility and mineral solubility of black soldier fly larvae meals for monogastric animals
(Journal article; Peer reviewed, 2022)Animal farming is a fast-growing sector which demands a large supply of feed materials and the search for novel feed ingredients with a smaller impact on the global environment has been intensified. However, before the ...