• Black-legged Kittiwake Rissa tridactyla adults and chicks share the same diet in the southern Barents Sea 

      Thorvaldsen, Renate; Barrett, Robert T.; Pedersen, Torstein (Journal article; Tidsskriftartikkel; Peer reviewed, 2015)
      The Black-legged Kittiwake Rissa tridactyla population is declining throughout its North Atlantic range. In Norway, the species is classified as Endangered on the Norwegian Red List. Studies of diet are one important requirement for effective management of any species. Because it is easier to sample, chick diet has often been considered a proxy for adult diet in many seabird studies, but the ...
    • No evidence of optimal foraging in chick-raising black-legged kittiwakes (Rissa tridactyla) in the Southern Barents Sea 

      Thorvaldsen, Renate (Master thesis; Mastergradsoppgave, 2013-05-21)
      The black-legged kittiwake (Rissa Tridactyla) situation is getting more serious as the population numbers have declined over the last decades, and this well-known species is now considered endangered (EN) in the Norwegian redlist 2010. This study investigates the differences between adult and chick diet considering prey selection to be an important point. Earlier chick diet has been considered a ...
    • Pharmacokinetics of a long-acting subcutaneous eprinomectin injection in semi-domesticated reindeer (Rangifer tarandus tarandus) - a pilot study 

      Davidson, Rebecca K.; Fæste, Christiane Kruse; Uhlig, Silvio; Tukun, Feng-Ling; Lian, Hans Edvin; Solvang, Hans Arne; Thorvaldsen, Renate; Folkow, Lars; Sanchez Romano, Javier; Kilvær, Marianne V.; Holmgren, Karin Elisabeth; Nymo, Ingebjørg Helena (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-12-17)
      Reindeer (Rangifer tarandus tarandus) are exposed to the pathogenic parasitic nematode Elaphostrongylus rangiferi during grazing. The severity of disease is dose-dependent. Prophylactic anthelmintic treatment is needed to improve animal health and reindeer herding sustainability. Herds are traditionally only gathered once during the summer, requiring a drug with a persistent effect. In this study ...