• Energy efficiency of respiration in mature and newborn reindeer 

      Solberg, Simon Birger Byremo; Kjelstrup, Signe; Magnanelli, Elisa; Kizilova, Nataliya; Barroso, Iratxe Lorea Casado; Acquarone, Mario; Folkow, Lars (Peer reviewed; Journal article, 2020)
      Reindeer (Rangifer tarandus) have evolved elaborate nasal turbinate structures that are perfused via a complex vascular network. These are subject to thermoregulatory control, shifting between heat conservation and ...
    • The nasal cavity of the bearded seal: An effective and robust organ for retaining body heat and water 

      Cheon, Hyejeong Lee; Kizilova, Nataliya; Flekkøy, Eirik Grude; Mason, Matthew J.; Folkow, Lars; Kjelstrup, Signe (Journal article; Peer reviewed, 2024)
      We report the effects of varying physiological and other properties on the heat and water exchange in the maxilloturbinate structure (MT) of the bearded seal (Erignathus barbatus or Eb) in realistic environments, using a ...
    • The nasal cavity of the bearded seal: An effective and robust organ for retaining body heat and water 

      Cheon, Hyejeong; Kizilova, Nataliya; Flekkøy, Eirik Grude; Mason, Matthew J.; Folkow, Lars; Kjelstrup, Signe (Journal article; Peer reviewed, 2024)
      We report the effects of varying physiological and other properties on the heat and water exchange in the maxilloturbinate structure (MT) of the bearded seal (Erignathus barbatus or Eb) in realistic environments, using a ...
    • Structure-function relationships in the nasal cavity of Arctic and subtropical seals 

      Cheon, Hyejeong; Kjelstrup, Signe; Kizilova, Nataliya; Flekkøy, Eirik Grude; Mason, Matthew J.; Folkow, Lars (Peer reviewed; Journal article, 2023)
      The heating and moistening of inhaled air, and the cooling and moisture removal from exhaled air, are crucial for the survival of animals under severe environmental conditions. Arctic mammals have evolved specific adaptive ...
    • The Nasal Geometry of the Reindeer Gives Energy-Efficient Respiration 

      Magnanelli, Elisa; Wilhelmsen, Øivind; Acquarone, Mario; Folkow, Lars; Kjelstrup, Signe (Journal article; Peer reviewed, 2016)
      Reindeer in the arctic region live under very harsh conditions and may face temperatures below 233 K. Therefore, efficient conservation of body heat and water is important for their survival. Alongside their insulating ...
    • Thermal modeling of the respiratory turbinates in arctic and subtropical seals 

      Flekkøy, Eirik Grude; Folkow, Lars; Kjelstrup, Signe; Mason, Matthew J.; Wilhelmsen, Øivind (Peer reviewed; Journal article, 2023)
      Mammals possess complex structures in their nasal cavities known as respiratory turbinate bones, which help the animal to conserve body heat and water during respiratory gas exchange. We considered the function of the ...