Blar i Institutt for natur, helse og miljø på tittel
Viser treff 285-304 av 312
-
The importance of chemical communication studies to mammalian conservation biology: A review
(Journal article; Peer reviewed, 2011-05-14)The relevance of chemical communication to mammalian conservation is not often the focus of scientific investigation. Our review identifies and discusses ten key areas in which the study of chemical communication aids ... -
The influence of a submerged meadow on uptake and trophic transfer of legacy mercury from contaminated sediment in the food web in a brackish Norwegian fjord
(Journal article; Peer reviewed, 2019)There are contradicting results on the importance of legacy mercury (Hg) contaminated sediments to Hg fish tissue concentrations. Still, sediment remediation actions often aim at minimizing ecosystem exposure and human ... -
The influence of permanently submerged macrophytes on sediment mercury distribution, mobility and methylation potential in a brackish Norwegian fjord
(Journal article; Peer reviewed, 2018)Macrophytes are shown to affect the microbial activity in different aqueous environments, with an altering of the sediment cycling of mercury (Hg) as a potential effect. Here, we investigated how a meadow with permanently ... -
The level of claudin-7 is reduced as an early event in colorectal carcinogenesis
(Journal article; Peer reviewed, 2011-02-10)BACKGROUND: Compromised epithelial barriers are found in dysplastic tissue of the gastrointestinal tract. Claudins are transmembrane proteins important for tight junctions. Claudins regulate the paracellular transport and ... -
The PMIP4 contribution to CMIP6 - Part 2: Two interglacials, scientific objective and experimental design for Holocene and Last Interglacial simulations
(Journal article; Peer reviewed, 2017)Two interglacial epochs are included in the suite of Paleoclimate Modeling Intercomparison Project PMIP4) simulations in the Coupled Model Intercomparison Project (CMIP6). The experimental protocols for simulations of the ... -
The prevalence and distribution of Borrelia burgdorferi sensu lato in host seeking Ixodes ricinus ticks in Lithuania
(Journal article; Peer reviewed, 2006)A total of 1559 unfed Ixodes ricinus (L., 1758) ticks were collected from the vegetation by flagging in 18 locations of Lithuania. The ticks were tested individually for the presence of spirochetes using polymerase chain ... -
The prevalence of Anaplasma phagocytophilum in host-seeking Ixodes ricinus ticks in Norway
(Journal article; Peer reviewed, 2008-12-24) -
The ratio of Matriptase/HAI-1 mRNA is higher in colorectal cancer adenomas and carcinomas than corresponding tissue from control individuals
(Journal article; Peer reviewed, 2006-07-04)BACKGROUND: It has recently been shown that overexpression of the serine protease, matriptase, in transgenic mice causes a dramatically increased frequency of carcinoma formation. Overexpression of HAI-1 and matriptase ... -
The relative importance of direct and indirect effects of hunting mortality on the population dynamics of brown bears
(Journal article; Peer reviewed, 2014)There is increasing evidence of indirect effects of hunting on populations. In species with sexually selected infanticide (SSI), hunting may decrease juvenile survival by increasing male turnover. We aimed to evaluate the ... -
The Use of Acceleration to Code for Animal Behaviours; A Case Study in Free-Ranging Eurasian Beavers Castor fiber
(Journal article; Peer reviewed, 2015-08-28)Recent technological innovations have led to the development of miniature, accelerometercontaining electronic loggers which can be attached to free-living animals. Accelerometers provide information on both body posture ... -
Tick-borne pathogens in Ixodes ricinus ticks collected from migratory birds in southern Norway
(Peer reviewed; Journal article, 2020)Birds are important hosts for the first life stages of the Ixodes ricinus tick and they can transport their parasites over long distances. The aim of this study was to investigate the prevalence of Borrelia burgdorferi ... -
Tick-transmitted co-infections among erythema migrans patients in a general practice setting in Norway: a clinical and laboratory follow-up study
(Journal article; Peer reviewed, 2021)Background: Erythema migrans (EM) is the most common manifestation of Lyme borreliosis. Here, we examined EM patients in Norwegian general practice to find the proportion exposed to tick-transmitted microorganisms other ... -
Tool-use in a display behaviour by Eurasian beavers ( Castor fiber )
(Journal article; Peer reviewed, 2007)Tool use is rare amongst rodents and has never been recorded in connection with agonistic displays. We witnessed a behaviour, stick display (StD), involving tool use in free-living Eurasian beavers (Castor fiber) that we ... -
Total circulating cell-free DNA as a prognostic biomarker in metastatic colorectal cancer before first-line oxaliplatin-based chemotherapy
(Journal article; Peer reviewed, 2019)Background Metastatic colorectal cancer (mCRC) is a heterogeneous disease where prognosis is dependent both on tumor biology and host factors. Total circulating cell-free DNA (cfDNA) has shown to harbor prognostic ... -
Toxic elements in arctic and sub-arctic brown bears: Blood concentrations of As, Cd, Hg and Pb in relation to diet, age, and human footprint
(Peer reviewed; Journal article, 2023)Contamination with arsenic (As), cadmium (Cd), mercury (Hg) and lead (Pb) is a global concern impairing resilience of organisms and ecosystems. Proximity to emission sources increases exposure risk but remoteness does not ... -
Use of anal gland secretion to distinguish the two beaver species Castor canadensis and C. fiber
(Journal article; Peer reviewed, 1999)Introduced North American beavers Castor canadensis pose a potential threat to the continuing recovery of Eurasian beaver C. fiber populations in several European countries. For management purposes, it is necessary to be ... -
Use of dawn and dusk sight observations to determine colony size and family composition in Eurasian beaver Castor fiber
(Journal article; Peer reviewed, 2006)The methods used to determine family composition and colony size in Eurasian beaver Castor fiber Linnaeus, 1758 are often poorly described in published reports. Here we show how repeated counts of colony size in a random ... -
Use of environmental DNA to detect the myxozoan endoparasite Tetracapsuloides bryosalmonae in large Norwegian lakes
(Journal article; Peer reviewed, 2022)Environmental DNA (eDNA) is an increasingly used noninvasive and cost-effective method for species detections in surveillance studies. The myxozoan endoparasite Tetracapsuloides bryosalmonae is the causative agent of ... -
Use of linear and areal habitat models to establish and distribute beaver Castor fiber harvest quotas in Norway
(Journal article; Peer reviewed, 2013)In Norway the Eurasian beaver Castor fiber harvest is quota-regulated. Once the annual quota for each municipality has been determined it is distributed to landowner-organized beaver management units. Municipal wildlife ... -
Use of space and movement patterns in monogamous adult Eurasian beavers (Castor fiber)
(Journal article; Peer reviewed, 2004)Monogamy in mammals is characterized by reduced sexual dimorphism in morphology and behaviour. Ten pairs of Eurasian beaver Castor fiber were radio-tracked to test how far this concept can be applied to movement behaviour ...