• Deep sympatric mitochondrial divergence without reproductive isolation in the common redstart Phoenicurus phoenicurus 

      Hogner, Silje; Laskemoen, Terje; Lifjeld, Jan Terje; Porkert, Jiri; Kleven, Oddmund; Albayrak, Tamer; Kabasakal, Bekir; Johnsen, Arild (Journal article; Peer reviewed, 2012)
      Mitochondrial DNA usually shows low sequence variation within and high sequence divergence among species, which makes it a useful marker for phylogenetic inference and DNA barcoding. A previous study on the common redstart ...
    • Evolution of female promiscuity in Passerides songbirds 

      Lifjeld, Jan Terje; Gohli, Jostein; Albrecht, Tomas; Garcia-del-Rey, Eduardo; Johannessen, Lars Erik; Kleven, Oddmund; Marki, Petter Z.; Omotoriogun, Taiwo Crossby; Rowe, Melissah; Johnsen, Arild (Journal article; Peer reviewed, 2019)
      Background: Female promiscuity is highly variable among birds, and particularly among songbirds. Comparative work has identified several patterns of covariation with social, sexual, ecological and life history traits. ...