Browsing Publikasjoner fra CRIStin by Author "Odland, Arvid"
Now showing items 1-8 of 8
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Are trampling effects by wild tundra reindeer understudied?
Heggenes, Jan; Odland, Arvid; Bjerketvedt, Dag (Journal article; Peer reviewed, 2018)Grazing and trampling by the wide-ranging wild tundra reindeer may have major top down landscape effects by causing vegetation changes. Grazing, as the collective effect of eating, trampling, defecation, and urination, has ... -
Drivers of soil temperature variation in alpine lichen heaths and shrub vegetation during the summer
Aartsma, Peter; Odland, Arvid; Reinhardt, Stefanie; Renssen, Hans (Peer reviewed; Journal article, 2023)Lichen heaths are decreasing in abundance in alpine and Arctic areas because of an increased competition with shrubs. This shift in vegetation might have important consequences for the soil temperature. The aim of this ... -
Herbivore grazing—or trampling? Trampling effects by a large ungulate in cold high- latitude ecosystems
Heggenes, Jan; Odland, Arvid; Chevalier, Tomas; Ahlberg, Jörgen; Berg, Amanda; Larsson, Håkan; Bjerketvedt, Dag (Journal article; Peer reviewed, 2017)Mammalian herbivores have important top-down effects on ecological processes and landscapes by generating vegetation changes through grazing and trampling. For free-ranging herbivores on large landscapes, trampling is an ... -
Microclimatic comparison of lichen heaths and shrubs: Shrubification generates atmospheric heating but subsurface cooling during the growing season
Aartsma, Peter; Asplund, Johan; Odland, Arvid; Reinhardt, Stefanie; Renssen, Hans (Peer reviewed; Journal article, 2021)Lichen heaths are declining in abundance in alpine and Arctic areas partly due to an increasing competition with shrubs. This shift in vegetation types might have important consequences for the microclimate and climate on ... -
Optimal foraging by a large ungulate in an extreme environment: Wild mountain reindeer select snow-free feeding habitats in winter
Romtveit, Lena; Strand, Olav; Mossing, Anders; Kastdalen, Leif; Hjeltnes, Arne William; Bjerketvedt, Dag Kjartan; Odland, Arvid; Heggenes, Jan (Journal article; Peer reviewed, 2021)Optimal foraging models predict that individual animals will optimize net energy gain by intensifying forage activity and/or reducing forage energy cost. Then, the free distribution model predicts an animal's distribution ... -
Soft resilience: moisture-dependent lichen elasticity buffer herbivore trampling in cold alpine-tundra ecosystems
Heggenes, Jan; Fagertun, Christian; Odland, Arvid; Bjerketvedt, Dag K. (Peer reviewed; Journal article, 2020)Herbivores may have extensive top-down effects in open grazing ecosystems, generating vegetation changes by grazing and trampling. Trampling effects are understudied, but may be a major ecological factor. In cold alpine-Arctic ... -
Strutseving (Matteúccia struthiópteris (L.) Tod.) - en vanlig bregneart som kan bli en gourmetgrønnsak også i Norge. Litteraturoversikt
Dragland, Steinar; Odland, Arvid (Bioforsk TEMA;, Research report, 2007)Det finnes et landbruksprodukt som er sterkt etterspurt i deler av USA og Canada, men som synes å være nesten ukjent i Europa. Produktet har blitt beskrevet som ”en smakfull og næringsrik grønnsak”. Råvaretilgangen og ... -
Wild Mountain reindeer Rangifer tarandus tarandus winter foraging: snow-free areas a key resource for feeding
Holtan, Marijanne; Strand, Olav; Kastdalen, Leif; Bjerketvedt, Dag Kjartan; Odland, Arvid; Pape, Roland; Heggenes, Jan (Peer reviewed; Journal article, 2023)In a landscape with patchily distributed forage resources, an animal’s distribution may reflect the distribution of the resources if the population is forage-limited in time or space. This may be particularly explicit in ...