Blar i forfatter "Stark, Sari"

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    • Herbivore Effects on Ecosystem Process Rates in a Low-Productive System 

      Tuomi, Maria Wilhelmina; Stark, Sari; Hoset, Katrine Skamfer; Väisänen, Maria; Oksanen, Lauri; Murguzur, Francisco Javier Ancin; Tuomisto, Hanna; Dahlgren, Jonas; Bråthen, Kari Anne (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-10-17)
      Mammalian herbivores shape the structure and function of many nutrient-limited or low-productive terrestrial ecosystems through modification of plant communities and plant–soil feedbacks. In the tundra biome, mammalian herbivores may both accelerate and decelerate plant biomass growth, microbial activity and nutrient cycling, that is, ecosystem process rates. Selective foraging and associated ...

    • Stomping in silence: Conceptualizing trampling effects on soils in polar tundra 

      Tuomi, Maria; Väisänen, Maria; Ylänne, H; Brearley, Francis Q.; Barrio, Isabel C.; Bråthen, Kari Anne; Eischeid, Isabell; Forbes, Bruce C.; Jónsdóttir, Ingibjörg; Kolstad, Anders Lorentzen; Macek, Petr; Petit Bon, Matteo; Speed, James David Mervyn; Stark, Sari; Svavarsdóttir, Kristin; Thorsson, Johann; Bueno, C. Guillermo (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-11-24)
      <ol> <li>Ungulate trampling modifies soils and interlinked ecosystem functions across biomes. Until today, most research has focused on temperate ecosystems and mineral soils while trampling effects on cold and organic matter‐rich tundra soils remain largely unknown.</li><p> <p><li>We aimed to develop a general model of trampling effects on soil structure, biota, microclimate and biogeochemical ...