Blar i forfatter "Ellgutter, Jennifer Alejandrina Carbonell"

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    • An analysis of dietary variation in Icelandic arctic fox (Vulpes lagopus) over a period of 30 years using stable isotopes 

      Ellgutter, Jennifer Alejandrina Carbonell (Master thesis; Mastergradsoppgave, 2017-05-14)
      Identifying the food resources for a species is one of the basic steps towards understanding population dynamics. The arctic fox is the only terrestrial carnivore on Iceland, and the population had been increasing until recently. Therefore, it is of great importance to know what factors regulate the population growth and which resources support it to understand why the population fluctuates. In this ...

    • Long-term responses of Icelandic Arctic foxes to changes in marine and terrestrial ecosystems 

      Berthelot, Fanny Marie Lou; Unnsteinsdóttir, Ester R.; Ellgutter, Jennifer Alejandrina Carbonell; Ehrich, Susanna Dorothee (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-04)
      The long-term dynamics of predator populations may be driven by fluctuations in resource availability and reflect ecosystem changes such as those induced by climate change. The Icelandic Arctic fox (Vulpes lagopus) population has known major fluctuations in size since the 1950s. Using stable isotopes analysis of bone collagen over a long-time series (1979– 2018), we aimed at identifying the main ...