Now showing items 21-40 of 256

    • Beaver genetic surveillance in Britain 

      Campbell-Palmer, Róisín; Senn, Helen V.; Girling, Simon Justin; Pizzi, Romain; Elliott, Mark; Gaywood, Martin J.; Rosell, Frank (Peer reviewed; Journal article, 2020)
      Founder genetic composition can affect reintroduction success, especially as the number of animals released tends to be small and therefore less genetically diverse than their source populations. Numerous translocations ...
    • Beaver management in Norway : a model for continental Europe? 

      Parker, Howard; Rosell, Frank (Journal article; Peer reviewed, 2003)
      While Norway has been managing beaver (Castor fiber) for more than 150 years, most central European countries have little experience and none are presently harvesting beaver, despite rapidly growing populations and conflicts. ...
    • Behavioral correlates of supplementary feeding of wildlife: Can general conclusions be drawn? 

      Steyaert, Sam; Kindberg, Jonas; Jerina, Klemen; Krofel, Miha; Stergar, Matija; Swenson, Jon; Zedrosser, Andreas (Journal article; Peer reviewed, 2014-10-12)
      Supplementary feeding is a common, but controversial, tool in wildlife management, because it can benefit both humans and wildlife (e.g., increased wildlife densities), but has certain downsides (e.g., increased disease ...
    • Berry production drives bottom – up effects on body mass and reproductive success in an omnivore 

      Hertel, Anne Gabriela; Bischof, Richard; Langval, Ola; Mysterud, Atle; Kindberg, Jonas; Swenson, Jon; Zedrosser, Andreas (Journal article; Peer reviewed, 2017)
      Obligate herbivores dominate studies of the eff ects of climate change on mammals, however there is limited empirical evidence for how changes in the abundance or quality of plant food aff ect mammalian omnivores. Omnivores ...
    • Bicarbonate for microalgae cultivation: a case study in a chlorophyte, Tetradesmus wisconsinensis isolated from a Norwegian lake 

      Umetani, Ikumi; Wakjera, Eshetu Janka; Sposób, Michal; Hulatt, Christopher Jonathan; Kleiven, Synne; Bakke, Rune (Peer reviewed; Journal article, 2021)
      Bicarbonate was evaluated as an alternative carbon source for a green microalga, Tetradesmus wisconsinensis, isolated from Lake Norsjø in Norway. Photosynthesis, growth, and lipid production were studied using four inorganic ...
    • Blitzfotografering av bevegelige objekter gjennom mikroskop 

      Bjerketvedt, Dag (Journal article, 1981)
      Ordinary microscopes can be adapted to fully automatic photomicroscopes for use with flash. An automatic small film camera with an autodynamic flash and extra equipment for microphotography is necessary. The camera's ...
    • Brood‐stock management and early hatchery rearing of Arctic charr (Salvelinus alpinus (Linnaeus)) 

      Olk, Tom Robin; Thorarensen, Helgi Thor; Jeuthe, Henrik; Wollebæk, Jens; Lydersen, Espen (Journal article; Peer reviewed, 2019)
      Arctic charr (Salvelinus alpinus (Linnaeus)) is a stenothermic cold‐water fish, which has been cultured in Northern Europe and North America since the 1980s. The industry has remained relatively small with an annual ...
    • Brown bears possess anal sacs and secretions may code for sex 

      Rosell, Frank; Jojola, Susan M.; Ingdal, Kristian; Lassen, Bård Andreas; Swenson, Jon; Arnemo, Jon Martin; Zedrosser, Andreas (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 

      Fimreite, Norvald; Parker, Howard; Rosell, Frank; Hosen, David Andre; Hovden, Aina; Solheim, Annette (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 ...
    • Can beaver Castor fiber be selectively harvested by sex and age during spring hunting? 

      Parker, Howard; Rosell, Frank; Hermansen, Tore André; Sørløkk, Gjermund; Stærk, Martin (Conference object, 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? 

      Cattet, Marc; Stenhouse, Gordon B.; Boulanger, John; Janz, David M.; Kapronczai, Luciene; Swenson, Jon; Zedrosser, Andreas (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 

      Campbell-Palmer, Róisín; Rosell, Frank (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 

      Bischof, Richard; Steyaert, Sam; Kindberg, Jonas (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 

      Paulsen, Katrine Mørk; Das Neves, Carlos G; Granquist, Erik Georg; Madslien, Knut Ivar Engesæter; Stuen, Snorre; Pedersen, Benedikte Nevjen; Vikse, Rose; Rocchi, Mara; Laming, Eleanor; Stiasny, Karin; Andreassen, Åshild Kristine (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 

      Swenson, Jon; Schneider, Michael; Zedrosser, Andreas; Söderberg, Arne; Franzén, Robert; Kindberg, Jonas (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 ...
    • Characterization of bacterial community associated with phytoplankton bloom in a eutrophic lake in South Norway using 16S rRNA gene amplicon sequence analysis 

      Parulekar, Niranjan Nitin; Kolekar, Pandurang; Jenkins, Andrew; Kleiven, Synne; Utkilen, Hans Christian; Johansen, Anette; Sawant, Sangeeta; Kulkarni-Kale, Urmila; Kale, Mohan; Sæbø, Mona (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 ...
    • Collapsing burrow causes death of a Eurasian beaver, Castor fiber 

      Thomsen, Liat R.; Sharpe, Fiona; Rosell, Frank (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) 

      Kvie, Kjersti; Heggenes, Jan; Anderson, David G.; Kholodova, Marina V.; Sipko, Taras; Mizin, Ivan; Røed, Knut H. (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 

      Nolet, Bart A.; Rosell, Frank (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 

      Rosef, Olav; Paulauskas, Algimantas; Grude, Nils; Haslekås, Camilla; Jenkins, Andrew (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 ...