Kjartan Østbye

Background

The vast diversity observed in morphology and life history in the threespined stickleback (Gasterosteus aculeatus L.) species complex continues to trigger evolutionary research on mechanisms and evolutionary rates. Particularly interesting are the very early steps of population differentiation which may illuminate what kind of traits and mechanisms are important during this initial phase of speciation. In our project (K. Østbye / A. Vøllestad) we will apply population genetic tools and morphology to study phylogeny, population differentiation, and funtional adaptive divergence. We aim at integrating quantitative genetics, behaviour and physiological experiments to quantify adaptive trait divergences, and to suggest the most likely evolutionary scenarios. The project is a collaboration with several institutions; Tom Klepaker (University of Bergen), Louis Bernatchez (University of Laval, Quebec), Paul Hart (University of Leicester), Chris Harrod (Max-Planck-Institute for Limnology, Plön), and Dolph Schluter (University of British Columbia, Vancouver). I have some experience with population genetics from my Dr. scient. work covering the polymorphic European whitefish (Coregonus lavaretus L.) species complex.

Tags: Conservation genetics, Divergence: neutral and adaptive, Ecological genomics, Evolutionary Ecology, Foraging ecology, Historic DNA, Local adaptation, Parallel evolution, Phenotypic integration, Reproductive isolation, Adaptation, Ancient DNA, Ecology, Evolutionary biology, Fish, Hybridization, Microsatellite, Mitochondrial DNA, Molecular ecology, Molecular evolution, Phylogenetics, Population genetics

Publications

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  • Østbye, Kjartan; Præbel, Kim; Pedersen, Simen & Bakmann, Ole (2017). Genetiske metoder bør brukes i vår fremtidige forvaltning av viltarter i Norge. Hjorteviltet. ISSN 1502-3729. p. 34–37.
  • Pedersen, Simen; Østbye, Kjartan; Præbel, Kim & Bakmann, Ole (2017). Use of DNA technology to define moose populations for management.
  • Pedersen, Simen; Østbye, Kjartan; Præbel, Kim; Bakmann, Ole; Linløkken, Arne & Mathisen, Karen Marie [Show all 9 contributors for this article] (2016). Bruk av DNA teknologi for å definere elgpopulasjoner.
  • Pedersen, Simen; Østbye, Kjartan; Præbel, Kim; Bakmann, Ole; Linløkken, Arne & Mathisen, Karen Marie [Show all 9 contributors for this article] (2016). Bruk av DNA teknologi for å definere elgpopulasjoner.
  • Taugbøl, Annette; Arntsen, Tina; Østbye, Kjartan & Vøllestad, Leif Asbjørn (2015). Small changes in gene expression of targeted osmoregulatory genes when exposing marine and freshwater Threespine Stickleback (Gasterosteus aculeatus) to abrupt salinity transfers.
  • Mazzarella, Anna; Boessenkool, Sanne; Østbye, Kjartan; Vøllestad, Leif Asbjørn & Trucchi, Emiliano (2015). Genomic signatures of the plateless phenotype in the Threespine Stickleback.
  • Hagenlund, Mari; Præbel, Kim & Østbye, Kjartan (2015). Krøkle-mysteriet i Storsjøen er løst. [Internet]. Forskning.no.
  • Præbel, Kim & Østbye, Kjartan (2015). Into the abyss, part II: Phenotype-genotype assignment, putative evolutionary origin and chronology of divergence of the four Arctic charr morphs in Lake Tinnsjøen.
  • Østbye, Kjartan & Præbel, Kim (2015). In the abyss part I: postglacial adaptive radiation of the Lake Tinnsjøen Arctic charr.
  • Semb-Johansson, Arne; Østbye, Eivind & Østbye, Kjartan (2014). Nordpaddens Bufo bufo habitatvalg på ei øy i Østfold-skjærgården, Søndre Sandøy. . Fauna. ISSN 0014-8881. 65, p. 138–150.
  • Mazzarella, Anna Virginia Black; Østbye, Kjartan & Vøllestad, Leif Asbjørn (2013). Looking for genomic signatures of platelessness in the threespine stickleback (Gasterosteus aculeatus).
  • Mazzarella, Anna Virginia Black; Østbye, Kjartan & Vøllestad, Leif Asbjørn (2013). Looking for genomic signatures of platelessness in the threespine stickleback (Gasterosteus aculeatus).
  • Østbye, Kjartan; Præbel, Kim; Knudsen, Rune; Siwertsson, Anna & Amundsen, Per-Arne (2011). Adaptive niche proliferation of polymorphic whitefish along the Kautokeino riversystem in northern Norway.
  • Præbel, Kim; Østbye, Kjartan; Siwertsson, Anna; Knudsen, Rune; Kahilainen, Kimmo K. & Fevolden, Svein-Erik [Show all 7 contributors for this article] (2011). Parallel post-glacial re-colonisation of European whitefish morphs in northern Fennoscandia.
  • Østbye, Kjartan; Bernatchez, Louis & Vøllestad, Leif Asbjørn (2009). Association between lateral plate morphs and Eda gene QTLs in threespine sticklebacks along a salinity gradient in Norway.
  • Østbye, Kjartan; Vøllestad, Leif Asbjørn; Hansen, Thomas; Arnaud, le Rouzic & Bernatchez, Louis (2009). Population structure and phenotypic patterns in the threespine stickleback along a salinity gradient in south - eastern Norway.
  • Østbye, Kjartan; Klepaker, Tom; Vøllestad, Leif Asbjørn & Bernatchez, Louis (2009). Pelvic anti-predator armor reduction in a threespinestickleback population.
  • Østbye, Kjartan (2009). Adaptive radiation of the Norwegian threespine stickleback.
  • Østbye, Kjartan (2008). Fiskeplanar på Finse. [Newspaper]. Hordaland.
  • Østbye, Kjartan (2008). Fiskenes Don Juan. [TV]. Uti Naturen NRK1; http://www1.nrk.no/nett-tv/natur/.
  • Østbye, Kjartan (2008). Adaptive radiation in the coastal Norwegian threespine stickleback.
  • Østbye, Kjartan (2008). Ecological speciation in northern freshwater fishes: datasets of the European whitefish and the threespine stickleback.
  • Østbye, Kjartan (2008). Røya i Finsevatn: forskning, forvaltning og fiske.
  • Østbye, Kjartan (2007). Løser Stingsildas hemmelighet. [Newspaper]. Bladet Vesterålen.
  • Østbye, Kjartan (2007). Spennende stingsild i Storvatnet. [Newspaper]. Bladet Vesterålen.
  • Østbye, Kjartan (2007). Røya på Finse: fiske og forvaltning.
  • Østbye, Kjartan (2006). På Stingsildraid i Andøy-vannene. [Newspaper]. Andøyposten.
  • Østbye, Kjartan (2006). Hvordan har Stingsilda det? [Newspaper]. Lofotposten.
  • Østbye, Kjartan (2006). Fisker Stingsild. [Newspaper]. Lofot-Tidende.
  • Østbye, Kjartan (2005). The European whitefish: historical contingency and evolutionary events.
  • Østbye, Kjartan (2002). The European whitefish (Coregonus lavaretus L.): phylogeography, evolution and management.
  • Østbye, Kjartan (2002). Phylogeography of the European whitefish (Coregonus lavaretus L.).
  • Østbye, Kjartan (1999). Gill raker distributions in European whitefish (Coregonus lavaretus species complex): limiting similarity of coexisting competitors.
  • Østbye, Eivind; Østbye, Kjartan & Østbye, Ingrid Margrethe (1998). Beveren i Ravalsjø-området. Langs Lågen. ISSN 0332-7019. 3, p. 98–106.
  • Østbye, Eivind; Østbye, Kjartan & Mysterud, Atle (1997). Mer effektiv rådyrjakt: Når og hvor felles flest rådyr? Jakt og fiske. ISSN 0800-3041. p. 60–62.
  • Dønnum, Bjørn Otto; Fjeldseth, Øyvind; Haugen, Thrond Oddvar; Heibo, Erik; Kristjanson, Laurus & Rygg, Tor Arne [Show all 9 contributors for this article] (1995). Rotenonbehandling av Rauma-laks for enhver pris? Biolog. ISSN 0801-0722. 4, p. 9–12.
  • Wiig, Elisabeth; Vøllestad, Leif Asbjørn & Østbye, Kjartan (2014). Variation in armour of the three-spine stickleback. Department of Biosciences, Faculty of Mathematics and Natural Sciences, University of Oslo.
  • Arntsen, Tina; Vøllestad, Leif Asbjørn; Taugbøl, Annette & Østbye, Kjartan (2012). Variation in expression of genes involved in osmoregulation in the threespine stickleback (Gasterosteus aculeatus) when exposed to different levels of salinity. Department of Biosciences, Faculty of Mathematics and Natural Sciences, University of Oslo.

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Published Jan. 29, 2019 3:28 PM - Last modified Jan. 29, 2019 3:28 PM

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