Helfenstein, F.; Szep, T.; Nagy, Z.; Kempenaers, B.; Wagner, R. H.: Between-male variation in sperm size, velocity and longevity in sand martins Riparia riparia. Journal of Avian Biology 39 (6), S. 647 - 652 (2008)
Kempenaers, B.; Peters, A.; Foerster, K.: Sources of individual variation in plasma testosterone levels. Philosophical Transactions of the Royal Society of London, Series B: Biological Sciences 363 (1497), S. 1711 - 1723 (2008)
Laucht, S.; DuVal, E. H.; Kempenaers, B.: Maternal correlates of brood sex ratio variation in the lekking lance-tailed manakin Chiroxiphia lanceolata. Journal of Avian Biology 39 (2), S. 198 - 205 (2008)
Mueller, J. C.; Steiger, S. S.; Fidler, A. E.; Kempenaers, B.: Biogenic trace amine-associated receptors (TAARs) are encoded in avian genomes: Evidence and possible implications. Journal of Heredity 99 (2), S. 174 - 176 (2008)
Steiger, S. S.; Fidler, A. E.; Kempenaers, B.: Detection of olfactory receptor transcripts in bird testes. Journal of Heredity 99 (6), S. 624 - 628 (2008)
Steiger, S. S.; Fidler, A. E.; Valcu, M.; Kempenaers, B.: Avian olfactory receptor gene repertoires: Evidence for a well-developed sense of smell in birds? Proceedings of the Royal Society B: Biological Sciences 275 (1649), S. 2309 - 2317 (2008)
Valcu, M.; Kempenaers, B.: Causes and consequences of breeding dispersal and divorce in a blue tit, Cyanistes caeruleus, population. Animal Behaviour 75 (6), S. 1949 - 1963 (2008)
Van Oers, K.; Drent, P. J.; Dingemanse, N. J.; Kempenaers, B.: Personality is associated with extra-pair paternity in great tits (Parus major). Animal Behaviour 76 (3), S. 555 - 563 (2008)
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)
Duval, E. H.; Carter, K. L.; Kempenaers, B.: Isolation and characterization of novel microsatellite loci for parentage assessment in the lance-tailed manakin (Chiroxiphia lanceolata). Molecular Ecology Notes 7 (6), S. 1111 - 1113 (2007)
Fidler, A. E.; van Oers, K.; Drent, P. J.; Kuhn, S.; Mueller, J. C.; Kempenaers, B.: Drd4 gene polymorphisms are associated with personality variation in a passerine bird. Proceedings of the Royal Society B: Biological Sciences 274 (1619), S. 1685 - 1691 (2007)
Jacot, A.; Kempenaers, B.: Effects of nestling condition on UV plumage traits in blue tits: An experimental approach. Behavioral Ecology 18 (1), S. 34 - 40 (2007)
Kempenaers, B.; Lanctot, R. B.; Gill, V.; Hatch, S.; Valcu, M.: Do females trade copulations for food? An experimental study on kittiwakes (Rissa tridactyla). Behavioral Ecology 18 (2), S. 345 - 353 (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)
Delhey, K.; Kempenaers, B.: Age differences in blue tit Parus caeruleus plumage colour: Within-individual changes or colour-biased survival? Journal of Avian Biology 37 (4), S. 339 - 348 (2006)
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)
Kunc, H. P.; Foerster, K.; Vermeirssen, E. L. M.; Kempenaers, B.: Experimentally elevated plasma testosterone levels do not influence singing behaviour of male blue tits (Parus caeruleus) during the early breeding season. Ethology 112 (10), S. 984 - 992 (2006)
Peters, A.; Delhey, K.; Goymann, W.; Kempenaers, B.: Age-dependent association between testosterone and crown UV coloration in male blue tits (Parus caeruleus). Behavioral Ecology and Sociobiology 59 (5), S. 666 - 673 (2006)
Poesel, A.; Kunc, H. P.; Foerster, K.; Johnsen, A.; Kempenaers, B.: Early birds are sexy: Male age, dawn song and extrapair paternity in blue tits, Cyanistes (formerly Parus) caeruleus. Animal Behaviour 72 (3), S. 531 - 538 (2006)
Steiger, S. S.; Goymann, W.; Kempenaers, B.: Plasma steroid hormones in two Arctic-breeding shorebirds: Monogamy versus polygyny. General and Comparative Endocrinology 147 (2), S. 133 - 140 (2006)
Denk, A. G.; Holzmann, A.; Peters, A.; Vermeirssen, E. L. M.; Kempenaers, B.: Paternity in mallards: Effects of sperm quality and female sperm selection for inbreeding avoidance. Behavioral Ecology 16 (5), S. 825 - 833 (2005)
Foerster, K.; Kempenaers, B.: Effects of testosterone on male-male competition and male-female interactions in blue tits. Behavioral Ecology and Sociobiology 57 (3), S. 215 - 223 (2005)
Goymann, W.; Kempenaers, B.; Wingfield, J. C.: Breeding biology, sexually dimorphic development and nestling testosterone concentrations of the classically polyandrous African black coucal, Centropus grillii. Journal of Ornithology 146 (4), S. 314 - 324 (2005)
Johnsen, A.; Delhey, K.; Schlicht, E.; Peters, A.; Kempenaers, B.: Male sexual attractiveness and parental effort in blue tits: A test of the differential allocation hypothesis. Animal Behaviour 70 (4), S. 877 - 888 (2005)
van Oers, K.; de Jong, G.; van Noordwijk, A. J.; Kempenaers, B.; Drent, P. J.: Contribution of genetics to the study of animal personalities: A review of case studies. Behaviour 142 (9-10), S. 1185 - 1206 (2005)
Dauwe, T.; Janssens, E.; Kempenaers, B.; Eens, M.: The effect of heavy metal exposure on egg size, eggshell thickness and the number of spermatozoa in blue tit Parus caeruleus eggs. Environmental Pollution 129 (1), S. 125 - 129 (2004)
Denk, A. G.; Gautschi, B.; Carter, K. L.; Kempenaers, B.: Seven polymorphic microsatellite loci for paternity assessment in the mallard (Anas platyrhynchos). Molecular Ecology Notes 4 (3), S. 506 - 508 (2004)
Foerster, K.; Kempenaers, B.: Experimentally elevated plasma levels of testosterone do not increase male reproductive success in blue tits. Behavioral Ecology and Sociobiology 56 (5), S. 482 - 490 (2004)
Peters, A.; Denk, A. G.; Delhey, K.; Kempenaers, B.: Carotenoid-based bill colour as an indicator of immunocompetence and sperm performance in male mallards. Journal of Evolutionary Biology 17 (5), S. 1111 - 1120 (2004)
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)
Balshine, S.; Kempenaers, B.; Székely, T.: Conflict and cooperation in parental care - Introduction. Philosophical Transactions of the Royal Society of London, Series B: Biological Sciences 357 (1419), S. 237 - 240 (2002)
Blomqvist, D.; Andersson, M.; Küpper, C.; Cuthill, I. C.; Kis, J.; Lanctot, R. B.; Sandercock, B. K.; Székely, T.; Wallander, J.; Kempenaers, B.: Genetic similarity between mates and extra-pair parentage in three species of shorebirds. Nature 419 (6907), S. 613 - 615 (2002)
Blomqvist, D.; Kempenaers, B.; Lanctot, R. B.; Sandercock, B. K.: Genetic parentage and mate guarding in the Arctic-breeding Western Sandpiper. The Auk 119 (1), S. 228 - 233 (2002)
Foerster, K.; Poesel, A.; Kunc, H. P.; Kempenaers, B.: The natural plasma testosterone profile of male blue tits during the breeding season and its relation to song output. Journal of Avian Biology 33 (3), S. 269 - 275 (2002)
Forstmeier, W.; Kempenaers, B.; Meyer, A.; Leisler, B.: A novel song parameter correlates with extra-pair paternity and reflects male longevity. Proceedings of the Royal Society B: Biological Sciences 269 (1499), S. 1479 - 1485 (2002)
Hormone steuern durch komplexe Regelkreise die Anpassungen von Organismen an ihre Umwelt. Verändern sich diese hormonellen Regelkreise schnell genug, um mit den weltweit immer schneller werdenden Umweltveränderungen mitzuhalten? Am Hormon Kortikosteron wird bei Vögeln gezeigt, dass verschiedene Arten unterschiedliche Konzentrationen aufweisen…