Browsing Naturhistorisk museum by Author "Wollan, Anders Kvalvåg"

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  • Naturtypekart etter NiN for området omkring Veia (Nedre Eiker og Øvre Eiker, Buskerud) 
    Halvorsen, Rune; Wollan, Anders Kvalvåg; Bryn, Anders; Bratli, Harald; Horvath, Peter (Report / Rapport, 2021)
  • Point of view: error estimation in field assignment of land-cover types 
    Eriksen, Eva Lieungh; Ullerud, Heidrun Asgeirsdatter; Halvorsen, Rune; Aune, Sigrun; Bratli, Harald; Horvath, Peter; Volden, Inger Kristine; Wollan, Anders Kvalvåg; Bryn, Anders (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    Questions: Substantial variation between observers has been found when comparing parallel land-cover maps, but how can we know which map is better? What magnitude of error and inter-observer variation is expected when ...
  • Presence-absence of plant habitat specialists in 15 patches of dry calcareous grassland 
    Lieungh, Eva; Bjureke, Kristina; Evju, Marianne; Johaadien, Rukaya Sarah; Olsen, Siri Lie; Skarpaas, Olav; Stabbetorp, Odd Egil; Wollan, Anders Kvalvåg (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Background Dry grasslands on calcareous bedrock in warm climates around the Oslo Fjord are naturally fragmented biodiversity hotspots. This habitat geographically coincides with the most densely populated area of Norway. ...
  • What explains inconsistencies in field-based ecosystem mapping? 
    Naas, Adam Eindride; Halvorsen, Rune; Horvath, Peter; Wollan, Anders Kvalvåg; Bratli, Harald; Brynildsrud, Katrine Marie; Finne, Eirik Aasmo; Keetz, Lasse Torben; Lieungh, Eva; Olson, Christine; Simensen, Trond; Skarpaas, Olav; Tandstad, Hilde; Torma, Michal; Værland, Espen Sommer; Bryn, Anders (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Questions: Field-based ecosystem mapping is prone to observer bias, typically resulting in a mismatch between maps made by different mappers, that is, inconsistency. Experimental studies testing the influence of site, ...