Arild Johnsen

Professor
Research Group Leader - Sex and Evolution Research Group
Image of Arild Johnsen
Norwegian version of this page
Phone +47 22851860
Room 112, Robert Colletts hus (Zoological museum)
Username
Visiting address Sars' gate 1 Tøyen
Postal address Natural History Museum University of Oslo P.O. Box 1172 Blindern NO-0318 Oslo

Background

Professor in zoological systematics and evolutionary biology
PhD in zoology 1998
Master in zoology 1994

Teaching and tutoring

Teaching at BIOS2210 and BIOS4215. Supervising master- and phd-students on research topics in behavioral ecology, evolution and biosystematics

Special fields

Head scientific curator of the DNA bank at NHM

Scientific head of NHM's field station in Øvre Heimdalen

Editor of Ornis Norvegica

Evolutionary biology and biosystematics. Speciation and phylogeography. DNA barcoding. Behavioural ecology with focus on sexual selection and sperm competition.

My research projects

Tags: Evolution, Zoology, Systematics, Speciation, Behavioural ecology, Sexual selection, Sperm competition

Publications

  • Cramer, Emily Rebecca A; Garcia-del-Rey, Eduardo; Johannessen, Lars Erik; Laskemoen, Terje; Marthinsen, Gunnhild & Johnsen, Arild [Show all 7 contributors for this article] (2021). Longer Sperm Swim More Slowly in the Canary Islands Chiffchaff. Cells. ISSN 2073-4409. Full text in Research Archive
  • Magnussen, Trude; Johnsen, Arild; Kjærandsen, Jostein; Struck, Torsten H & Søli, Geir Einar Ellefsen (2021). Molecular phylogeny of Allodia (Diptera: Mycetophilidae) constructed using genome skimming. Systematic Entomology. ISSN 0307-6970. p. 1–15. doi: 10.1111/syen.12529.
  • Rekdal, Silje Larsen; Anmarkrud, Jarl Andreas; Lifjeld, Jan Terje & Johnsen, Arild (2021). Elevated phytohaemagglutinin‐induced skin‐swelling response at an intermediate number of MHC class II alleles in bluethroat nestlings. Journal of Avian Biology. ISSN 0908-8857. doi: 10.1111/jav.02734.
  • Omotoriogun, Taiwo Crossby; Albrecht, Tomas; Gohli, Jostein; Horák, David; Johannessen, Lars Erik & Johnsen, Arild [Show all 11 contributors for this article] (2020). Sperm length variation among Afrotropical songbirds reflects phylogeny rather than adaptations to the tropical environment. Zoology. ISSN 0944-2006. 140. doi: 10.1016/j.zool.2020.125770. Full text in Research Archive
  • Rekdal, Silje Larsen; Anmarkrud, Jarl Andreas; Lifjeld, Jan Terje & Johnsen, Arild (2019). Extra‐pair mating in a passerine bird with highly duplicated major histocompatibility complex class II: Preference for the golden mean. Molecular Ecology. ISSN 0962-1083. doi: 10.1111/mec.15273. Full text in Research Archive
  • Albrecht, Tomas; Opletalová, Kamila; Reif, Jiri; Janousek, Vaclav; Pialek, Lubomir & Cramer, Emily Rebecca A [Show all 8 contributors for this article] (2019). Sperm divergence in a passerine contact zone: Indication of reinforcement at the gametic level. Evolution. ISSN 0014-3820. 73(2), p. 202–213. doi: 10.1111/evo.13677. Full text in Research Archive
  • Lindsay, Willow R.; Andersson, Staffan; Bererhi, Badreddine; Höglund, Jacob; Johnsen, Arild & Kvarnemo, Charlotta [Show all 16 contributors for this article] (2019). Endless forms of sexual selection. PeerJ. ISSN 2167-8359. doi: 10.7717/peerj.7988. Full text in Research Archive
  • Lifjeld, Jan Terje; Gohli, Jostein; Albrecht, Tomas; Garcia-del-Rey, Eduardo; Johannessen, Lars Erik & Kleven, Oddmund [Show all 9 contributors for this article] (2019). Evolution of female promiscuity in Passerides songbirds. BMC Evolutionary Biology. ISSN 1471-2148. 19(1). doi: 10.1186/s12862-019-1493-1. Full text in Research Archive
  • Støstad, Hanna Nyborg; Rowe, Melissah; Johnsen, Arild & Lifjeld, Jan Terje (2019). Sperm head abnormalities are more frequent in songbirds with more helical sperm: A possible trade-off in sperm evolution. Journal of Evolutionary Biology. ISSN 1010-061X. p. 1–9. doi: 10.1111/jeb.13446. Full text in Research Archive
  • Cramer, Emily Rebecca A; Rowe, Melissah; Eroukhmanoff, Fabrice; Lifjeld, Jan Terje; Sætre, Glenn-Peter & Johnsen, Arild (2019). Measuring sperm swimming performance in birds: effects of dilution, suspension medium, mechanical agitation, and sperm number. Journal of Ornithology = Journal fur Ornithologie. ISSN 0021-8375. p. 1–11. doi: 10.1007/s10336-019-01672-9. Full text in Research Archive
  • Støstad, Hanna Nyborg; Rowe, Melissah; Johnsen, Arild; Tomasek, Oldrich; Albrecht, Tomas & Lifjeld, Jan Terje (2019). Sperm head abnormalities are associated with excessive omega-6 fatty acids in two finch species feeding on sunflower seeds. Journal of Avian Biology. ISSN 0908-8857. 50(3), p. 1–12. doi: 10.1111/jav.02056. Full text in Research Archive
  • Králová, Tereza; Albrecht, Tomas; Bryja, Josef; Horák, David; Johnsen, Arild & Lifjeld, Jan Terje [Show all 10 contributors for this article] (2018). Signatures of diversifying selection and convergence acting on passerine Toll-like receptor 4 in an evolutionary context. Molecular Ecology. ISSN 0962-1083. 27(13), p. 2871–2883. doi: 10.1111/mec.14724. Full text in Research Archive
  • Støstad, Hanna Nyborg; Johnsen, Arild; Lifjeld, Jan Terje & Rowe, Melissah (2018). Sperm head morphology is associated with sperm swimming speed: a comparative study of songbirds using electron microscopy. Evolution. ISSN 0014-3820. 72(9), p. 1918–1932. doi: 10.1111/evo.13555. Full text in Research Archive
  • Magnussen, Trude; Kjærandsen, Jostein; Johnsen, Arild & Søli, Geir Einar Ellefsen (2018). Six new species of Afrotropical Allodia (Diptera: Mycetophilidae): DNA barcodes indicate recent diversification with a single origin. Zootaxa. ISSN 1175-5326. 4407(3), p. 301–320. doi: 10.11646/zootaxa.4407.3.1. Full text in Research Archive
  • Kearns, Anna Marika; Restani, Marco; Szabo, Ildiko; Schrøder-Nielsen, Audun; Kim, Jin Ah & Richardson, Hayley M. [Show all 10 contributors for this article] (2018). Genomic evidence of speciation reversal in ravens. Nature Communications. ISSN 2041-1723. 9(1). doi: 10.1038/s41467-018-03294-w. Full text in Research Archive
  • Rekdal, Silje Larsen; Anmarkrud, Jarl Andreas; Johnsen, Arild & Lifjeld, Jan Terje (2018). Genotyping strategy matters when analyzing hypervariable major histocompatibility complex-Experience from a passerine bird. Ecology and Evolution. ISSN 2045-7758. 8(3), p. 1680–1692. doi: 10.1002/ece3.3757.
  • Sætre, Camilla Lo Cascio; Johnsen, Arild; Stensrud, Even & Cramer, Emily Rebecca A (2018). Sperm morphology, sperm motility and paternity success in the bluethroat (Luscinia svecica). PLOS ONE. ISSN 1932-6203. 13(3). doi: 10.1371/journal.pone.0192644. Full text in Research Archive
  • Johnsen, Arild; Pauliny, Angela; Lifjeld, Jan Terje & Blomqvist, Donald (2017). Is telomere length associated with mate choice in a songbird with a high rate of extrapair paternity? PLOS ONE. ISSN 1932-6203. 12(8). doi: 10.1371/journal.pone.0182446. Full text in Research Archive
  • Johnsen, Arild; Kearns, Anna Marika; Omland, Kevin E. & Anmarkrud, Jarl Andreas (2017). Sequencing of the complete mitochondrial genome of the common raven Corvus corax (Aves: Corvidae) confirms mitogenome-wide deep lineages and a paraphyletic relationship with the Chihuahuan raven C. cryptoleucus. PLOS ONE. ISSN 1932-6203. 12(10). doi: 10.1371/journal.pone.0187316. Full text in Research Archive
  • Boumans, Louis; Hogner, Silje; Brittain, John Edward & Johnsen, Arild (2017). Ecological speciation by temporal isolation in a population of the stonefly Leuctra hippopus (Plecoptera, Leuctridae). Ecology and Evolution. ISSN 2045-7758. 7(5), p. 1635–1649. doi: 10.1002/ece3.2638.
  • Garcia, Javier; Johnsen, Arild; Fuertes, Benito & Suarez-Seoane, Susana (2017). Evolutionary divergences in Luscinia svecica subspecies complex - New evidence supporting the uniqueness of the Iberian bluethroat breeding populations. Ornis Fennica. ISSN 0030-5685. 94(3), p. 141–149. Full text in Research Archive
  • Støstad, Hanna Nyborg; Rekdal, Silje Larsen; Kleven, Oddmund; Laskemoen, Terje; Marthinsen, Gunnhild & Johnsen, Arild [Show all 7 contributors for this article] (2016). Weak geographical structure in sperm morphology across the range of two willow warbler Phylloscopus trochilus subspecies in Scandinavia. Journal of Avian Biology. ISSN 0908-8857. 47(5), p. 731–741. doi: 10.1111/jav.00981. Full text in Research Archive
  • Cramer, Emily Rebecca A; Ålund, Murielle; McFarlane, S. Eryn; Johnsen, Arild & Qvarnström, Anna (2016). Females discriminate against heterospecific sperm in a natural hybrid zone. Evolution. ISSN 0014-3820. 70(8), p. 1844–1855. doi: 10.1111/evo.12986.
  • Lemoine, Melissa; Lucek, Kay; Perrier, Charles; Saladin, Verena; Adriaensen, Frank & Barba, Emilio [Show all 27 contributors for this article] (2016). Low but contrasting neutral genetic differentiation shaped by winter temperature in European great tits. Biological Journal of the Linnean Society. ISSN 0024-4066. 118(3), p. 668–685. doi: 10.1111/bij.12745.
  • Cramer, Emily Rebecca A; Stensrud, Even; Marthinsen, Gunnhild; Hogner, Silje; Johannessen, Lars Erik & Laskemoen, Terje [Show all 10 contributors for this article] (2016). Sperm performance in conspecific and heterospecific female fluid. Ecology and Evolution. ISSN 2045-7758. doi: 10.1002/ece3.1977. Full text in Research Archive
  • Lifjeld, Jan Terje; Anmarkrud, Jarl Andreas; Calabuig, Pascual; Cooper, Joseph E.J.; Johannessen, Lars Erik & Johnsen, Arild [Show all 12 contributors for this article] (2016). Species-level divergences in multiple functional traits between the two endemic subspecies of Blue Chaffinches Fringilla teydea in Canary Islands. BMC Zoology. ISSN 2056-3132. doi: 10.1186/s40850-016-0008-4.
  • Eroukhmanoff, Fabrice; Rowe, Melissah; Cramer, Emily Rebecca A; Haas, Fredrik; Hermansen, Jo Skeie & Runemark, Anna [Show all 8 contributors for this article] (2016). Experimental evidence for ovarian hypofunction in sparrow hybrids. Avian Research. ISSN 2053-7166. 7. doi: 10.1186/s40657-016-0038-1.
  • Mutanen, Marko; Kivelä, Sami M.; Vos, Rutger A.; Doorenweerd, Camiel; Ratnasingham, Sujeevan & Hausmann, Axel [Show all 23 contributors for this article] (2016). Species-level para- and polyphyly in DNA barcode gene trees: Strong operational bias in European Lepidoptera. Systematic Biology. ISSN 1063-5157. 65(6), p. 1024–1040. doi: 10.1093/sysbio/syw044.
  • Rowe, Melissah; Albrecht, Tomas; Cramer, Emily Rebecca A; Johnsen, Arild; Laskemoen, Terje & Weir, Jason T [Show all 7 contributors for this article] (2015). Postcopulatory sexual selection is associated with accelerated evolution of sperm morphology. Evolution. ISSN 0014-3820. 69(4), p. 1044–1052. doi: 10.1111/evo.12620.
  • Cramer, Emily Rebecca A; Laskemoen, Terje; Stensrud, Even; Rowe, Melissah; Haas, Fredrik & Lifjeld, Jan Terje [Show all 8 contributors for this article] (2015). Morphology-function relationships and repeatability in the sperm of Passer sparrows. Journal of morphology. ISSN 0362-2525. 276(4), p. 370–377. doi: 10.1002/jmor.20346.
  • Hogner, Silje; Riera, Albert Burgas; Wold, Margrethe; Lifjeld, Jan Terje & Johnsen, Arild (2015). Intergeneric hybridization between Common Redstart Phoenicurus phoenicurus and Whinchat Saxicola rubetra revealed by molecular analyses. Journal of Ornithology. ISSN 2193-7192. 156, p. 829–836. doi: 10.1007/s10336-015-1165-x.
  • Boumans, Louis & Johnsen, Arild (2015). Stonefly duets: vibrational sexual mimicry can explain complex patterns. Journal of Ethology. ISSN 0289-0771. 33(2), p. 87–107. doi: 10.1007/s10164-015-0423-y.
  • Anttila, K; Couturier, Christine Stephanie; Øverli, Øyvind; Johnsen, Arild; Marthinsen, Gunnhild & Nilsson, Göran Erik [Show all 7 contributors for this article] (2014). Atlantic salmon show capability for cardiac acclimation to warm temperatures. Nature Communications. ISSN 2041-1723. 5. doi: 10.1038/ncomms5252.
  • Cramer, Emily Rebecca A; Laskemoen, Terje; Eroukhmanoff, Fabrice; Haas, Fredrik; Hermansen, Jo Skeie & Lifjeld, Jan Terje [Show all 9 contributors for this article] (2014). Testing a post-copulatory pre-zygotic reproductive barrier in a passerine species pair. Behavioral Ecology and Sociobiology. ISSN 0340-5443. 68(7), p. 1133–1144. doi: 10.1007/s00265-014-1724-9.
  • Brabrand, Åge; Bremnes, Trond; Koestler, Andreas Georg; Marthinsen, Gunnhild; Pavels, Henning & Rindal, Eirik [Show all 9 contributors for this article] (2014). Mass occurrence of bloodsucking blackflies in a regulated river reach: Localization of oviposition habitat of Simulium truncatum using DNA barcoding. Rivers Research and Applications: an international journal devoted to river research and management. ISSN 1535-1459. 30(5), p. 602–608. doi: 10.1002/rra.2669.
  • Gohli, Jostein; Leder, Erica H.; Garcia-Del-Rey, Eduardo; Johannessen, Lars Erik; Johnsen, Arild & Laskemoen, Terje [Show all 7 contributors for this article] (2014). The evolutionary history of Afrocanarian blue tits inferred from genomewide SNPs. Molecular Ecology. ISSN 0962-1083. 24(1), p. 180–191. doi: 10.1111/mec.13008.
  • Svoboda, Ales; Marthinsen, Gunnhild; Pavel, Václav; Chutný, Bohumír; Turčoková, Lucia & Lifjeld, Jan Terje [Show all 7 contributors for this article] (2014). Die prävalenz von blutparasiten beim blaukehlchen ist verknüpft mit der unterart und dem bruthabitat. Journal of Ornithology = Journal fur Ornithologie. ISSN 0021-8375. 156(2), p. 371–380. doi: 10.1007/s10336-014-1134-9.
  • Boumans, Louis & Johnsen, Arild (2014). Species-specific communication bars interspecific mating between syntopic species of Zwicknia stoneflies (Plecoptera: Capniidae). Biological Journal of the Linnean Society. ISSN 0024-4066. 113(4), p. 969–980. doi: 10.1111/bij.12372.
  • Johnsen, Arild; Brabrand, Åge; Anmarkrud, Jarl Andreas; Bjørnstad, Gro; Pavels, Henning & Saltveit, Svein Jakob (2014). Impact of human-induced environmental changes on genetic structure and variability in Atlantic salmon, Salmo salar. Fisheries Management and Ecology. ISSN 0969-997X. 21(1), p. 32–41. doi: 10.1111/fme.12049.
  • Rukke, Bjørn Arne; Cholidis, Symira; Johnsen, Arild & Ottesen, Preben (2014). Confirming Hypoderma tarandi (Diptera: Oestridae) human ophthalmomyiasis by larval DNA barcoding. Acta Parasitologica. ISSN 1230-2821. 59(2), p. 301–304. doi: 10.2478/s11686-014-0242-2.
  • Wojczulanis-Jakubas, K; Kilikowska, A; Harding, AMA; Jakubas, D; Karnovsky, NJ & Steen, Harald [Show all 11 contributors for this article] (2014). Weak population genetic differentiation in the most numerous Arctic seabird, the little auk. Polar Biology. ISSN 0722-4060. 37(5), p. 621–630. doi: 10.1007/s00300-014-1462-5.
  • Rowe, Melissah ; Laskemoen, Terje; Johnsen, Arild & Lifjeld, Jan Terje (2013). Evolution of sperm structure and energetics in passerine birds. Proceedings of the Royal Society of London. Biological Sciences. ISSN 0962-8452. 280(1753). doi: 10.1098/rspb.2012.2616.
  • Kvie, Kjersti Sternang; Hogner, Silje; Aarvik, Leif; Lifjeld, Jan Terje & Johnsen, Arild (2013). Deep sympatric mtDNA divergence in the autumnal moth (Epirrita autumnata. Ecology and Evolution. ISSN 2045-7758. 3(1), p. 126–144. doi: 10.1002/ece3.434.
  • Mettler, Raeann; Schaefer, H.Martin; Chernetsov, Nikita; Fiedler, Wolfgang; Hobson, Keith A & Ilieva, Mihaela [Show all 13 contributors for this article] (2013). Contrasting Patterns of Genetic Differentiation among Blackcaps (Sylvia atricapilla) with Divergent Migratory Orientations in Europe. PLOS ONE. ISSN 1932-6203. 8(11). doi: 10.1371/journal.pone.0081365.

View all works in Cristin

  • Johnsen, Arild (2021). MHC-based mate choice in bluethroats.
  • Johnsen, Arild (2021). Øvre Heimdalen field station - past, present and future.
  • Johnsen, Arild (2020). Female extra-pair mating in birds: is there a universal adaptive explanation?
  • Ekrem, Torbjørn; Alsos, Inger Greve; Baussant, Thierry; de Boer, Hugo; Carson, Siri Granum & Dahle, Geir [Show all 14 contributors for this article] (2020). BIOSCAN Norway - Enabling next generation biodiversity research.
  • Cerca, Jose; Johnsen, Arild; Struck, Torsten H & Bachmann, Lutz (2020). Naturhistoriske samlinger i den molekylære æraen: En kostbar hobby eller en bærebjelke for moderne forskning? Naturen. ISSN 0028-0887. p. 110–116. doi: 10.18261/issn.1504-3118-2020-03-07.
  • Ekrem, Torbjørn; Alsos, Inger Greve; Johnsen, Arild; Willassen, Endre; Aspaas, Aina Mærk & Merkel, Marie Kristine Føreid [Show all 8 contributors for this article] (2019). Five years as national research infrastructure: status of the Norwegian Barcode of Life Network (NorBOL). Genome. ISSN 0831-2796. 62(6). doi: 10.1139/gen-2019-0083.
  • Ekrem, Torbjørn; Alsos, Inger Greve; Johnsen, Arild; Willassen, Endre; Aspaas, Aina Mærk & Merkel, Marie Kristine Føreid [Show all 8 contributors for this article] (2019). Five years as national research infrastructure: status of the Norwegian Barcode of Life Network (NorBOL).
  • Johnsen, Arild (2019). Female extra-pair mating in birds: is there a common adaptive explanation?
  • Marthinsen, Gunnhild & Johnsen, Arild (2019). DNA-strekkoding: genetisk identifisering av arter. Biolog. ISSN 0801-0722. 37(3-4), p. 24–29.
  • Johnsen, Arild & Gjesdal, Trine-Lise (2018). Møt en forsker: zoolog Arild Johnsen. [Journal]. Nysgjerrigper.
  • Torgersen, Eivind & Johnsen, Arild (2018). To ravner er blitt én. [Internet]. Forskning.no.
  • Ålund, Murielle; Cramer, Emily Rebecca A; McFarlane, Eryn; Johnsen, Arild & Qvarnström, Anna (2017). Females discriminate against heterospecific sperm in a natural hybrid zone.
  • Johnsen, Arild (2017). Øvre Heimdalen field station. Summary and future prospects.
  • Magnussen, Trude; Søli, Geir Einar Ellefsen; Johnsen, Arild & Kjærandsen, Jostein (2017). DNA barcode libraries - A treasure chest for alpha taxonomy .
  • Ekrem, Torbjørn; Alsos, Inger Greve; Johnsen, Arild; Willassen, Endre; Aspaas, Aina Mærk & Merkel, Marie Kristine Føreid [Show all 9 contributors for this article] (2017). Progress and prospects of the Norwegian Barcode of Life Network (NorBOL). Genome. ISSN 0831-2796. 60(11), p. 930–930. doi: 10.1139/gen-2017-0209.
  • Ekrem, Torbjørn; Alsos, Inger Greve; Johnsen, Arild; Willassen, Endre; Aspaas, Aina Mærk & Merkel, Marie Kristine Føreid [Show all 9 contributors for this article] (2017). Progress and prospects of the Norwegian Barcode of Life Network (NorBOL).
  • Marthinsen, Gunnhild; Bendiksby, Mika; Brandrud, Tor Erik; Dima, Bálint; Hansen, Lars Ove & Johnsen, Arild [Show all 8 contributors for this article] (2017). Discordance between morphology and DNA barcodes in lichens, fungi and insects.
  • Johnsen, Arild (2017). Utroskap, sjalusi og spermier hos småfugl.
  • Johnsen, Arild (2017). Cryptic female choice at the intra- and interspecific level in passerines: what are the molecular mechanisms?
  • Ekrem, Torbjørn; Alsos, Inger Greve; Johnsen, Arild; Willassen, Endre; Aspaas, Aina Mærk & Kongshavn, Katrine [Show all 8 contributors for this article] (2017). The Norwegian Barcode of Life Network (NorBOL).
  • Johnsen, Arild (2017). Sperm competition in birds: from individual to sperm behaviour.
  • Johnsen, Arild (2017). Speciation reversal in ravens.
  • Johnsen, Arild (2017). DNA barcoding at NHM. Science and application .
  • Ekrem, Torbjørn; Alsos, Inger Greve; Johnsen, Arild; Willassen, Endre; Aspaas, Aina Mærk & Merkel, Marie Kristine Føreid [Show all 9 contributors for this article] (2016). The Norwegian Barcode of Life Network (NorBOL).
  • Johnsen, Arild (2016). Heimdalen: Bird research and future prospects.
  • Johnsen, Arild (2016). Nå kommer fuglene - møt eksperten og entusiasten. [Radio]. NRK P2 - Ekko helg.
  • Johnsen, Arild & Danielsen, Dag Inge (2016). Utroskap blant fluesnappere gir færre hybridfugler. [Internet]. Forskning.no.
  • Johnsen, Arild & Rekdal, Silje Larsen (2016). Drifter. [TV]. NRK - Ut i naturen.
  • Ekrem, Torbjørn; Alsos, Inger Greve; Johnsen, Arild; Willassen, Endre; Aspaas, Aina Mærk & Føreid, Marie Kristine [Show all 8 contributors for this article] (2015). The Norwegian Barcode of Life Network (NorBOL). Genome. ISSN 0831-2796. 58(5).
  • Kearns, Anna Marika; Restani, Marco; Szabo, Ildiko; Fleischer, Robert; Johnsen, Arild & Omland, Kevin E. (2015). Speciation reversal in ravens? Evidence for the collapse of cryptic Old World and New World lineages.
  • Cramer, Emily Rebecca A; Ålund, Murielle; McFarlane, S. Eryn; Johnsen, Arild & Qvarnström, Anna (2015). A post-copulatory pre-zygotic barrier between collared and pied flycatchers.
  • Ekrem, Torbjørn; Alsos, Inger Greve; Johnsen, Arild; Willassen, Endre; Aspaas, Aina Mærk & Føreid, Marie Kristine [Show all 8 contributors for this article] (2015). The Norwegian Barcode of Life Network (NorBOL).
  • Omland, Kevin E.; Kearns, Anna Marika; Restani, Marco; Szabo, Ildiko & Johnsen, Arild (2015). Speciation reversal in Common Ravens: Genomic evidence of the collapse of cryptic lineages in western North America.
  • Johnsen, Arild (2015). The early stages of the speciation process - prezygotic reproductive isolation and diversification in passerines: final report.
  • Johnsen, Arild (2015). Using genetic resources in biosystematic research: examples from the NHMO DNA bank.
  • Johnsen, Arild (2014). Homofile dyr og kjipe ender. [Radio]. Radiokompaniet, P4.
  • Johnsen, Arild (2014). Sexus, hvorfor er vi hunn og hann? Om sex i evolusjonen. [Radio]. Ekko, NRK P2.
  • Johnsen, Arild (2014). Hvorfor er vi så fascinert av fugler? [Radio]. Ekko, NRK P2.
  • Johnsen, Arild (2014). Hvilken fugl har seg mest? [Radio]. Radiokompaniet, P4.
  • Ekrem, Torbjørn; Alsos, Inger Greve; Johnsen, Arild; Willassen, Endre; Aspaas, Aina Mærk & Føreid, Marie Kristine [Show all 8 contributors for this article] (2014). Norwegian Barcode of Life.
  • Ekrem, Torbjørn; Alsos, Inger Greve; Johnsen, Arild; Willassen, Endre; Aspaas, Aina Mærk & Føreid, Marie Kristine [Show all 8 contributors for this article] (2014). The Norwegian Barcode of Life Network (NorBOL).
  • Cramer, Emily Rebecca A; Ålund, Murielle; Laskemoen, Terje; Eroukhmanoff, Fabrice; Eybert, Marie-Christine & Haas, Fredrik [Show all 12 contributors for this article] (2014). Post-copulatory, pre-zygotic isolating barriers in passerine birds?
  • Johnsen, Arild; Cramer, Emily Rebecca A & Grydeland, Ivar (2014). Fugleforskerne i Heimdalen. [Radio]. Ekko, NRK P2.
  • Johnsen, Arild & Graver, Gjermund (2014). Første blekbrynsanger for Akershus bekreftet ved hjelp av DNA-strekkoding. Toppdykker'n. ISSN 0333-1687. 37(2), p. 64–67.
  • Boumans, Louis; Brittain, John Edward; Johnsen, Arild & Hogner, Silje (2014). Ecological speciation by temporal isolation in a population of the stonefly Leuctra hippopus (Plecoptera, Leuctridae).
  • Rowe, Melissah; Albrecht, Tomas; Cramer, Emily Rebecca A; Johnsen, Arild; Laskemoen, Terje & Weir, Jason T [Show all 7 contributors for this article] (2014). Postcopulatory sexual selection accelerates rates of evolutionary divergence in sperm morphology.
  • Kearns, Anna Marika; Johnsen, Arild; Szabo, Ildiko; Kim, Jin; Richardson, Hayley & Gobbert, Matthias [Show all 9 contributors for this article] (2014). Deep Mitochondrial Divergence Within Common Ravens: Speciation Reversal in Western North America?
  • Johnsen, Arild (2013). Naturens mangfold. Om arter og hvordan de blir til.
  • Kristin, Grydeland & Johnsen, Arild (2013). Parforhold hos fugler. [Radio]. Radio Nova.
  • Ekrem, Torbjørn; Alsos, Inger Greve; Johnsen, Arild; Willassen, Endre; Stur, Elisabeth & Marthinsen, Gunnhild [Show all 11 contributors for this article] (2013). The Norwegian Barcode of Life.
  • Gohli, Jostein; Johnsen, Arild; Popp, Magnus; Leder, Erica H. & Lifjeld, Jan Terje (2013). Resolving species trees and rewriting taxonomy: Using next-gen sequencing data to unravel a recent radiation of a passerine bird on an island system.
  • Cramer, Emily Rebecca A; Laskemoen, Terje; Eroukhmanoff, Fabrice; Haas, Fredrik; Hermansen, Jo Skeie & Lifjeld, Jan Terje [Show all 9 contributors for this article] (2013). An experimental test of a potential post-copulatory pre-zygotic reproductive barrier in a passerine species pair.
  • Cramer, Emily Rebecca A & Johnsen, Arild (2013). Post-mating, pre-zygotic barriers and speciation.
  • Cramer, Emily Rebecca A; Laskemoen, Terje; Eroukhmanoff, Fabrice; Haas, Fredrik; Hermansen, Jo Skeie & Lifjeld, Jan Terje [Show all 9 contributors for this article] (2013). Testing a post-copulatory pre-zygotic reproductive barrier in a passerine species pair.
  • Lifjeld, Jan Terje; Gohli, Jostein & Johnsen, Arild (2013). Promisquity, sexual selection, and genetic diversity : a reply to Spurgin. Evolution. ISSN 0014-3820. 67(10), p. 3073–3074. doi: 10.1111/evo.12211.
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Published May 31, 2011 9:17 AM - Last modified Nov. 25, 2021 4:26 PM