Blar i forfatter "Hotvedt, Ådne"

Viser treff 1-2 av 2

    • Evaluation of meso- and microplastic ingestion by the northern fulmar through a non-lethal sampling method 

      Collard, France; Strøm, Hallvard; Fayet, Marie-Océane; Gudmundsson, Fannar Theyr; Herzke, Dorte; Hotvedt, Ådne; Løchen, Arja Katrina Lea Arnesen; Malherbe, Cédric; Eppe, Gauthier; Gabrielsen, Geir W. (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-11)
      An increasing number of organisms from the polar regions are reported contaminated by plastic. Rarely a nonkilling sampling method is used. In this study we wanted to assess plastic levels using stomach flushing and evaluate the method suitability for further research and monitoring. The stomach of 22 fulmars from Bjørnøya, Svalbard, were flushed with water in the field. On return to the laboratory, ...

    • Predator aversion in resident generalist birds. A ghost of evolutionary past? 

      Hotvedt, Ådne (Master thesis; Mastergradsoppgave, 2018-05-14)
      Predator aversion is an important adaptation that can significantly lower the mortality rate among prey animals, but avoiding a predator requires knowing and recognizing them. The predator aversion of Common gulls and Mallard ducks at Prestvannet Lake, Tromsø, Northern Norway was tested in an experiment by placing differing objects resembling snakes next to bread during the summer and autumn of 2017. ...