Browsing Department of Biological Sciences by Title
Now showing items 1115-1134 of 2447
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Histone variant innovation in a rapidly evolving chordate lineage
(Peer reviewed; Journal article, 2011-07-15)Background: Histone variants alter the composition of nucleosomes and play crucial roles in transcription, chromosome segregation, DNA repair, and sperm compaction. Modification of metazoan histone variant lineages occurs ... -
Historical changes in macroalgal communities in Hardangerfjord (Norway)
(Peer reviewed; Journal article, 2014)Hardangerfjord is the second largest fjord in Norway and is situated on the southwest coast. During the last century the fjord has been influenced by a variety of anthropogenous activities such as industry, hydro-electrical ... -
HIV-1 Rev oligomerization is not obligatory in the presence of an extra basic domain
(Peer reviewed; Journal article, 2005-06-10)Background: The HIV-1 Rev regulatory protein binds as an oligomeric complex to viral RNA mediating nuclear export of incompletely spliced and non-spliced viral mRNAs encoding the viral structural proteins. However, the ... -
A Holarctic Biogeographical Analysis of the Collembola (Arthropoda, Hexapoda) Unravels Recent Post-Glacial Colonization Patterns
(Peer reviewed; Journal article, 2011-06-29)We aimed to describe the main Arctic biogeographical patterns of the Collembola, and analyze historical factors and current climatic regimes determining Arctic collembolan species distribution. Furthermore, we aimed to ... -
Holocene changes in atmospheric circulation recorded in the oxygen-isotope stratigraphy of lacustrine carbonates from northern Sweden
(Peer reviewed; Journal article, 2002)The oxygen-isotope composition of local precipitation (d18OP) is reconstructed from carbonate lake-sediment components in a sediment core covering the last 10000 calendar years from Lake Tibetanus, a small, hydrologically ... -
Holocene changes in the position of the Southern Hemisphere Westerlies recorded by long-distance transport of pollen to the Kerguelen Islands
(Journal article; Peer reviewed, 2024)The Southern Hemisphere Westerlies (SHW) are a vital part of the Southern Hemisphere's coupled ocean-atmosphere system and play an important role in the global climate system. The SHW affect the upwelling of carbon-rich ... -
Holocene climatic change reconstructed from diatoms, chironomids, pollen and near-infrared spectroscopy at an alpine lake (Sjuodjijaure) in northern Sweden
(Peer reviewed; Journal article, 2001)The results of a multiproxy study reconstructing the climate history of the last 9300 years in northern Sweden are presented. It is based on diatom, chironomid and pollen analyses, as well as near-infrared spec troscopy ... -
Holocene environmental and climate history of Trettetjørn, a low-alpine lake in Western Norway, based on subfossil pollen, diatoms, oribatid mites, and plant macrofossils
(Peer reviewed; Journal article, 2006)Holocene lake and catchment environmental history and regional climate are reconstructed from lake sediments at Trettetjørn, a small lake situated close to the present-day treeline in western Norway. Sediments began to ... -
Holocene fire and vegetation dynamics in the Central Pyrenees (Spain)
(Journal article; Peer reviewed, 2020)Fire-vegetation relationships are critical to understand transient mountain ecosystems and their long-term landscape dynamics, which is essential for alpine forest conservation. In this paper we aim to (1) reconstruct the ... -
Holocene forest development and tree-limit changes in Ridalen, in the Røros mountains
(Master thesis, 2010-07-02)Holocene forest development, tree migration and tree-line fluctuations have been reconstructed from peat sequences, derived from two study localities situated along an altitudinal transect between the north boreal and low ... -
Holocene mean July temperature and winter precipitation in western Norway inferred from palynological and glaciological lake-sediment proxies
(Peer reviewed; Journal article, 2005)Reconstructions of mean July temperature (Tjul) and winter precipitation (Pw) for the last 11/500 years on the Folgefonna peninsula are presented. Tjul was reconstructed using pollen-climate transfer functions and Pw was ... -
Holocene palaeoclimate reconstructions at Vanndalsvatnet, western Norway, with particular reference to the 8200 cal. yr BP event
(Peer reviewed; Journal article, 2006)Analyses of organic content, magnetic susceptibility, grain size and pollen in sediments from the proglacial lake Vanndalsvatnet in western Norway provide a high-resolution terrestrial record and pollenbased quantitative ... -
Homeodomain transcription factors Six3 and Six6 have distinct protein binding characteristics
(Doctoral thesis, 2015-02-20)The goal of this study was to characterize Six3 and Six6 proteins interactions and to better understand their functions. The Six class proteins are found in a wide variety of animals ranging from primitive invertebrate ... -
Hook shedding and post-release fate of deep-hooked European eel
(Peer reviewed; Journal article, 2016-07)The European eel (Anguilla anguilla) is a commercially and recreationally important fishery target species. In the last decades, the eel has experienced dramatic stock declines and has been listed as critically endangered. ... -
Hormonal and Neuropeptide Mechanisms of Appetite Control in Atlantic Salmon
(Doctoral thesis, 2010-06-25) -
Hormonal regulation of the phenotype into environmentally appropriate pace-of-life syndromes
(Journal article; Peer reviewed, 2024)The risk of predation is an important driver that tailors life histories in various ways. Using an evolutionary model based on hormonal control, we study how different predation regimes affect adaptive risk-taking and ... -
Hormone strategies as a key for understanding life history trade-offs in fish
(Doctoral thesis, 2020-04-21)Animal behaviour has fascinated humans for millennia. For studying animal behaviour, evolutionary biologists have focused primarily on their ultimate fitness causes mainly using a top-down approach. In contrast, physiologists ... -
Hormones as adaptive control systems in juvenile fish
(Peer reviewed; Journal article, 2020-02-17)Growth is an important theme in biology. Physiologists often relate growth rates to hormonal control of essential processes. Ecologists often study growth as a function of gradients or combinations of environmental factors. ... -
Host associated genotypes in the family Branchiomonaceae with proposal of Ca. Branchiomonas mykissicola n. sp. from rainbow trout (Oncorhynchus mykiss)
(Journal article; Peer reviewed, 2024)Candidatus Branchiomonas cysticola is the primary etiological agent of epitheliocystis and the most prevalent bacterium associated with gill disease (GD) in farmed Atlantic salmon (Salmo salar) and rainbow trout (Oncorhynchus ... -
Host choice and fitness of anemonefish Amphiprion ocellaris (Perciformes: Pomacentridae) living with host anemones (Anthozoa: Actiniaria) in captive conditions
(Peer reviewed; Journal article, 2019)In this study, we investigated the host choice of naïve Amphiprion ocellaris , a specialist, at two different stages of development (newly settling juveniles and post‐settlement juveniles). The fish were exposed to their ...