Johnsen, A.; Carter, K. L.; Delhey, K.; Lifjeld, J. T.; Robertson, R. J.; Kempenaers, B.: Laying-order effects on sperm numbers and on paternity: Comparing three passerine birds with different life histories. Behavioral Ecology and Sociobiology 66 (2), S. 181 - 190 (2012)
Delhey, K.; Peters, A.; Johnsen, A.; Kempenaers, B.: Brood sex ratio and male UV ornamentation in blue tits (Cyanistes caeruleus): Correlational evidence and an experimental test. Behavioral Ecology and Sociobiology 61 (6), S. 853 - 862 (2007)
Peters, A.; Delhey, K.; Johnsen, A.; Kempenaers, B.: The condition-dependent development of carotenoid-based and structural plumage in nestling blue tits: Males and females differ. American Naturalist 169 (S1), S. S122 - S136 (2007)
Foerster, K.; Valcu, M.; Johnsen, A.; Kempenaers, B.: A spatial genetic structure and effects of relatedness on mate choice in a wild bird population. Molecular Ecology 15 (14), S. 4555 - 4567 (2006)
Johnsen, A.; Andersson, S.; Fernandez, J. G.; Kempenaers, B.; Pavel, V.; Questiau, S.; Räß, M.; Rindal, E.; Lifjeld, J. T.: Molecular and phenotypic divergence in the bluethroat (Luscinia svecica) subspecies complex. Molecular Ecology 15 (13), S. 4033 - 4047 (2006)
Delhey, K.; Johnsen, A.; Peters, A.; Andersson, S.; Kempenaers, B.: Paternity analysis reveals opposing selection pressures on crown coloration in the blue tit (Parus caeruleus). Proceedings of the Royal Society B: Biological Sciences 270 (1528), S. 2057 - 2063 (2003)
Johnsen, A.; Delhey, K.; Andersson, S.; Kempenaers, B.: Plumage colour in nestling blue tits: Sexual dichromatism, condition dependence and genetic effects. Proceedings of the Royal Society B: Biological Sciences 270 (1521), S. 1263 - 1270 (2003)
Johnsen, A.; Lifjeld, J. T.; Krokene, C.: Age-related variation in mate-guarding intensity in the bluethroat (Luscinia s. svecica). Ethology 109 (2), S. 147 - 158 (2003)
Johnsen, A.; Lifjeld, J. T.; Andersson, S.; Ornborg, J.; Amundsen, T.: Male characteristics and fertilisation success in bluethroats. Behaviour 138, S. 1371 - 1390 (2001)
Bei Zebrafinken fällt kein Meistersänger vom Himmel. Jeder Jungvogel muss zunächst eine Gesangsschule durchlaufen. Singvögel sind deshalb gute Modellorganismen dafür, wie Lernvorgänge im Tierreich ablaufen