Blar i Department of Biological Sciences på tittel
Viser treff 1739-1758 av 2216
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Rapid climate changes during the Lateglacial and the early Holocene as seen from plant community dynamics in the Polar Urals, Russia
(Journal article; Peer reviewed, 2021)A detailed, well-dated record of pollen and sedimentary ancient DNA (sedaDNA) for the period 15 000–9500 cal a bp describes changes at Lake Bolshoye Shchuchye in the Polar Ural Mountains, located far east of the classical ... -
Rapid high-resolution detection of colistin resistance in Gram-negative bacteria using flow cytometry: a comparison with broth microdilution, a commercial screening test and WGS
(Journal article; Peer reviewed, 2021)Background Even though both EUCAST and CLSI consider broth microdilution (BMD) as the reference method for antimicrobial susceptibility testing (AST) of colistin, the method exhibits potential flaws related to properties ... -
Rapid life‑history evolution in a wild Daphnia pulex population in response to novel size‑dependent predation
(Journal article; Peer reviewed, 2020)The effect of size-selective predation on prey communities and their traits is well documented, but the relative roles of genetic adaptation and phenotypic plasticity continue to be debated. We looked for evidence of genetic ... -
Rate-of-change analysis in palaeoecology revisited: a new approach
(Journal article; Peer reviewed, 2021)Dynamics in the rate of compositional change (rate-of-change; RoC), preserved in paleoecological sequences, are thought to reflect changes due to exogenous (climate and human forcing) or endogenous (local dynamics and ... -
Re-sampling in beach- and sand dune communities at South West Karmøy - 2008. Some comparisons and interpretations.
(Master thesis, 2009-06-02)Sandy beaches with accompanying immature dunes as well as mature sand dunes are regarded a rare biotope in Norway. The localities of this survey are situated at the south west coast of Karmøy. As a former resident of the ... -
Reaction norm analysis reveals rapid shifts toward delayed maturation in harvested Lake Erie yellow perch (Perca flavescens)
(Peer reviewed; Journal article, 2019-01-06)Harvested marine fish stocks often show a rapid and substantial decline in the age and size at maturation. Such changes can arise from multiple processes including fisheries‐induced evolution, phenotypic plasticity, and ... -
“Real-time” genetic monitoring of a commercial fishery on the doorstep of an MPA reveals unique insights into the interaction between coastal and migratory forms of the Atlantic cod
(Peer reviewed; Journal article, 2017-05)With the decline of many of the world’s fisheries, increased regulation, including marine protected areas (MPA), forms an increasingly important role in promoting sustainable resource use. Here, we present a novel “real-time” ... -
Rearing conditions and automated feed distribution systems for zebrafish (Danio rerio)
(Journal article; Peer reviewed, 2022)Zebrafish (Danio rerio) is a well-established animal model, used in a number of research areas. In the last decade, it has also emerged as a tool to evaluate the effects of diets and dietary components and to test novel ... -
Recent ecosystem dynamics in nine North African lakes in the CASSARINA Project
(Peer reviewed; Journal article, 2001)An integrated multi-disciplinary study of nine North African lakes (CASSARINA) aims to establish ecological baselines and to explore responses to 20th century human impacts on their ecosystems. Water chemistry measurements ... -
Recent environmental change and atmospheric contamination on Svalbard as recorded in lake sediments – an introduction
(Peer reviewed; Journal article, 2004)This paper outlines an interdisciplinary project on recent environmental change and atmospheric contamination on the high Arctic archipelago of Svalbard (76º30'N – 80º30'N). It describes the rationale and aims of the project ... -
Recent environmental change and atmospheric contamination on Svalbard as recorded in lake sediments – modern limnology, vegetation, and pollen deposition
(Peer reviewed; Journal article, 2004)Twenty-four lakes on Svalbard were sampled for palaeolimnological studies and are described in terms of their geographical location, catchment characteristics, water chemistry, and flora. No sediment could be retrieved ... -
Recent environmental change and atmospheric contamination on Svalbard as recorded in lake sediments – synthesis and general conclusions
(Peer reviewed; Journal article, 2004)The major patterns of biostratigraphical and geochemical change detected in a multidisciplinary study on recent environmental change and atmospheric contamination on Svalbard are summarised and synthesized. The patterns ... -
Recent environmental change and human impact on Svalbard: the lake-sediment geochemical record
(Peer reviewed; Journal article, 2004)As part of a broader investigation into recent environmental change on Svalbard, the inorganic geochemical record of six lake-sediment cores was analysed. The major temporal trends in sediment elemental composition are ... -
Recent increases in species richness and shifts in altitudinal distributions of Norwegian mountain plants
(Peer reviewed; Journal article, 2003)Opportunities for observing long-term changes in natural biota are rare. Observations on the distribution and frequency of vascular plants were performed on 23 mountains situated along a west–east gradient in Jotunhei men, ... -
Recent trends in abundance and fishing pressure of agency-assessed small pelagic fish stocks
(Journal article; Peer reviewed, 2022)Small pelagic fishes are used for human consumption, fishmeal and fish oil. They constitute 25% of global fish catch and have been of considerable conservation concern because of their intermediate position in aquatic food ... -
Receptor for activated C-kinase (RACK1) plays a central role in Ras-mediated signal transduction
(Conference lecture, 2010-09-24) -
Reciprocal cross infection of sticklebacks with the diphyllobothriidean cestode Schistocephalus solidus reveals consistent population differences in parasite growth and host resistance
(Peer reviewed; Journal article, 2016-03-08)Background In host-parasite evolutionary arms races, parasites are generally expected to adapt more rapidly, due to their large population sizes and short generation times. There exist systems, though, where parasites ... -
Reconstructed 3D models of digestive organs of developing Atlantic cod (Gadus morhua) larvae
(Peer reviewed; Journal article, 2010)Six 3D models of the digestive system during ontogeny were reconstructed from histological sections of Atlantic cod larvae. The 3D models clearly visualize the following features: folding of the gut rotation; subdivision ... -
Reconstructed 3D-models of the digestive organs of ballan wrasse (Labrus bergylta) during ontogeny
(Master thesis, 2017-10)This study describe the ontogeny of the digestive tract and it’s associated glands of ballan wrasse at six reference stages from yolk sac larva (Stage 1; 4 DPH) until juvenile phase (Stage 6; 102 DPH). Reconstructed 3D-models ... -
Reconstruction of the birth of a male sex chromosome present in Atlantic herring
(Journal article; Peer reviewed, 2020)The mechanisms underlying sex determination are astonishingly plastic. Particularly the triggers for the molecular machinery, which recalls either the male or female developmental program, are highly variable and have ...