Browsing Institutt for natur, helse og miljø by Title
Now showing items 31-50 of 320
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Brown bears possess anal sacs and secretions may code for sex
(Journal article; Peer reviewed, 2010-09-14)Olfactory communication occurs in carnivores and many scent-mark with anal gland secretions (AGS), which contain a variety of information including sex-related cues. Currently, there is disagreement about whether bear ... -
Cadmium, copper, and zinc in Eurasian beaver (Castor fiber) from Bø, Telemark, Norway
(Journal article; Peer reviewed, 2001)Heavy metals are elements present in all forms of life. Of those analysed for in the present study, cadmium (Cd) is toxic and non-essential while copper (Cu) and zinc (Zn) are essential elements, but toxic when certain ... -
A camera trapping method for the targeted capture of Eurasian beaver (Castor fiber) tails for individual scale pattern recognition
(Peer reviewed; Journal article, 2023)Camera traps are commonly used to monitor and study wild animals in their natural habitat, with minimal disturbance. Several investigations have shown that the natural markings of animals for some species can be used for ... -
Can beaver Castor fiber be selectively harvested by sex and age during spring hunting?
(Conference report, 2000)In Norway, Sweden and Finland hunting Eurasian beaver Castor fiber Linnaeus, 1758 with firearms is presently the main harvest form and most are shot in late April and early May. As beaver cannot be sexed from external ... -
Can concentrations of steroid hormones in brown bear hair reveal age class?
(Journal article; Peer reviewed, 2018)Although combining genetic and endocrine data from non-invasively collected hair samples has potential to improve the conservation of threatened mammals, few studies have evaluated this opportunity. In this study, we ... -
Captive care and welfare considerations for beavers
(Journal article; Peer reviewed, 2015-03-01)Beavers (Castor spp.) tend not to be a commonly held species and little published material exists relating to their captive care. We review published material and discuss husbandry issues taking into account the requirements ... -
Caught in the mesh : roads and their network-scale impediment to animal movement
(Journal article; Peer reviewed, 2017)Roads have a pervasive multi-faceted influence on ecosystems, including pronounced impacts on wildlife movements. In recognition of the scale-transcending impacts of transportation infrastructure, ecologists have been ... -
Cervids as sentinel-species for tick-borne encephalitis virus in Norway - A serological study
(Journal article; Peer reviewed, 2019)Tick‐borne encephalitis virus (TBEV) is the causative agent of tick‐borne encephalitis (TBE). TBEV is one of the most important neurological pathogens transmitted by tick bites in Europe. The objectives of this study were ... -
Challenges of managing a European brown bear population; lessons from Sweden, 1943–2013
(Journal article; Peer reviewed, 2017)Adaptive management’, which has been defined as the repeated iteration between management action, scientific assessment and revised management action, leading to a strengthened foundation for management, is required by ... -
Characterisation of the bacterial microbiota of a landfill-contaminated confined aquifer undergoing intrinsic remediation
(Peer reviewed; Journal article, 2021)Literature on microbiomes of landfill leachate-contaminated aquifers is scarce despite groundwater contaminations from landfills being common globally. In this study, a combination of microbiological techniques was applied ... -
Characterization of bacterial community associated with phytoplankton bloom in a eutrophic lake in South Norway using 16S rRNA gene amplicon sequence analysis
(Journal article; Peer reviewed, 2017)Interactions between different phytoplankton taxa and heterotrophic bacterial communities within aquatic environments can differentially support growth of various heterotrophic bacterial species. In this study, phytoplankton ... -
Climate influence on plant–pollinator interactions in the keystone species Vaccinium myrtillus
(Journal article; Peer reviewed, 2022)Climate change is altering the world's ecosystems through direct effects of climate warming and precipitation changes but also indirectly through changes in biotic interactions. For instance, climate-driven changes in plant ... -
Clinicopathological factors associated with tumour-specific mutation detection in plasma of patients with RAS-mutated or BRAF-mutated metastatic colorectal cancer
(Peer reviewed; Journal article, 2021)Detection of tumour-specific circulating cell-free DNA in plasma (ctDNA) fails in a significant number of cases depending on the clinical context. The primary aim was to investigate clinicopathological factors associated ... -
Collapsing burrow causes death of a Eurasian beaver, Castor fiber
(Journal article; Peer reviewed, 2004)The death of a Eurasian Beaver Castor fiber caused by a collapsing burrow in southeast Norway is reported. Two days of heavy rainfall had presumably caused the burrow to collapse, suffocating the animal. -
Colonizing the high arctic: Mitochondrial DNA reveals common origin of Eurasian archipelagic reindeer (Rangifer tarandus)
(Journal article; Peer reviewed, 2016)In light of current debates on global climate change it has become important to know more on how large, roaming species have responded to environmental change in the past. Using the highly variable mitochondrial control ... -
Comeback of the beaver Castor fiber : an overview of old and new conservation problems
(Journal article; Peer reviewed, 1998)Due to over-hunting c. 1200 Eurasian previous termbeaversnext term Castor fiber survived in eight relict populations in Europe and Asia at the beginning of the 20th century. Following hunting restrictions and translocation ... -
Comparison of Norwegian poultry, waterborne and clinical isolates of Campylobacter jejuni by ribotyping
(Journal article; Peer reviewed, 2009)Campylobacteriosis is the most frequently occurring food and waterborne gastroenteritis in Norway and 90% of cases are caused by Campylobacter jejuni. Campylobacteriosis is epidemiologically associated with use of ... -
Compatibility of preparatory procedures for the analysis of cortisol concentrations and stable isotope (δ13C, δ15N) ratios: a test on brown bear hair
(Journal article; Peer reviewed, 2017)The measurement of naturally occurring glucocorticoids and stable isotopes of several elements has gained importance in wildlife studies in recent decades and opened a myriad of ecological applications. Cortisol and stable ... -
A Conflict between Traditional Flood Measures and Maintaining River Ecosystems? A Case Study Based Upon the River Lærdal, Norway
(Peer reviewed; Journal article, 2021)Floods are among the most damaging of natural disasters, and flood events are expected to increase in magnitude and frequency with the effects of climate change and changes in land use. As a consequence, much focus has ... -
Consistent imprints of elevation, soil temperature and moisture on plant and arthropod communities across two subarctic landscapes
(Peer reviewed; Journal article, 2023)1. Factors shaping arthropod and plant community structure at fine spatial scales are poorly understood. This includes microclimate, which likely plays a large role in shaping local community patterns, especially in ...