Blar i forfatter "Madsen, Jesper"

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    • Disturbance mapping in arctic tundra improved by a planning workflow for drone studies: Advancing tools for future ecosystem monitoring 

      Eischeid, Isabell; Soininen, Eeva M; Assmann, Jakob J.; Ims, Rolf Anker; Madsen, Jesper; Pedersen, Åshild Ø.; Pirotti, Francesco; Yoccoz, Nigel; Ravolainen, Virve T. (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-11-06)
      The Arctic is under great pressure due to climate change. Drones are increasingly used as a tool in ecology and may be especially valuable in rapidly changing and remote landscapes, as can be found in the Arctic. For effective applications of drones, decisions of both ecological and technical character are needed. Here, we provide our method planning workflow for generating ground-cover maps with ...

    • Snowmelt progression drives habitat selection and vegetation disturbance by an Arctic avian herbivore 

      Eischeid, Isabell; Madsen, Jesper; Ims, Rolf Anker; Nolet, Bart A.; Pedersen, Åshild Ønvik; Schreven, Kees H.T.; Soininen, Eeva Marjatta; Yoccoz, Nigel Gilles; Ravolainen, Virve (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-12-17)
      Arctic tundra vegetation is affected by rapid climatic change and fluctuating herbivore population sizes. Broad-billed geese, after their arrival in spring, feed intensively on belowground rhizomes, thereby disturbing soil, mosses, and vascular plant vegetation. Understanding of how springtime snowmelt patterns drive goose behavior is thus key to better predict the state of Arctic tundra ecosystems. ...