Publications of Kaspar Delhey

Delhey, K.; Carrizo, M.; Verniere, L.; Mahler, B.; Peters, A.: Rejection of brood-parasitic shiny cowbird Molothrus bonariensis nestlings by the firewood-gatherer Anumbius annumbi? Journal of Avian Biology 42 (5), pp. 463 - 467 (2011)

Peters, A.; Kurvers, R. H. J. M.; Roberts, M. L.; Delhey, K.: No evidence for general condition-dependence of structural plumage colour in blue tits: An experiment. Journal of Evolutionary Biology 24 (5), pp. 976 - 987 (2011)

Peters, A.; Magdeburg, S.; Delhey, K.: The carotenoid conundrum: Improved nutrition boosts plasma carotenoid levels but not immune benefits of carotenoid supplementation. Oecologia 166 (1), pp. 35 - 43 (2011)

Delhey, K.; Burger, C.; Fiedler, W.; Peters, A.: Seasonal changes in colour: A comparison of structural, melanin- and carotenoid-based plumage colours. PLoS One 5 (7), e11582 (2010)

Delhey, K.; Carrizo, M.; Verniere, L. C.; Mahler, B.; Peters, A.: Seasonal variation in reprocuctive output of a neotropical temperate suroscine, the firefood-gatherer (anumbius annumbi). The Auk 127 (1), pp. 222 - 231 (2010)

Delhey, K.; Roberts, M. L.; Peters, A.: The carotenoid-continuum: Carotenoid-based plumage ranges from conspicuous to cryptic and back again. BMC Ecology 10, 13 (2010)

Kurvers, R. H. J. M.; Delhey, K.; Roberts, M. L.; Peters, A.: No consistent female preference for higher crown UV reflectance in Blue Tits Cyanistes caeruleus: A mate choice experiment. Ibis 152 (2), pp. 393 - 396 (2010)

Peters, A.; Klonczinski, E.; Delhey, K.: Fat quill secretion in pigeons: Could it function as a cosmetic? Animal Biology 60 (1), pp. 69 - 78 (2010)

Carrizo, M.; Delhey, K.: Observations on a nest of the Bearded Tachuri (Polystictus pectoralis). Ornitologia Neotropical 19 (1), pp. 157 - 160 (2008)

Delhey, K.; Peters, A.: Quantifying variability of avian colours: Are signalling traits more variable? PLoS One 3 (2), e1689 (2008)

Delhey, K.; Peters, A.; Biedermann, P. H. W.; Kempenaers, B.: Optical properties of the uropygial gland secretion: No evidence for UV cosmetics in birds. Die Naturwissenschaften 95 (10), pp. 939 - 946 (2008)

Peters, A.; Delhey, K.; Andersson, S.; van Noordwijk, H. J.; Förschler, M. I.: Condition-dependence of multiple carotenoid-based plumage traits: An experimental study. Functional Ecology 22 (5), pp. 831 - 839 (2008)

Schmidt-Wellenburg, C. A.; Visser, G. H.; Biebach, B.; Delhey, K.; Oltrogge, M.; Wittenzellner, A.; Biebach, H.; Kempenaers, B.: Trade-off between migration and reproduction: Does a high workload affect body condition and reproductive state? Behavioral Ecology 19 (6), pp. 1351 - 1360 (2008)

Delhey, K.; Peters, A.; Johnsen, A.; Kempenaers, B.: Fertilization success and UV ornamentation in blue tits Cyanistes caeruleus: Correlational and experimental evidence. Behavioral Ecology 18 (2), pp. 399 - 409 (2007)

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), pp. 853 - 862 (2007)

Delhey, K.; Peters, A.; Kempenaers, B.: Cosmetic coloration in birds: Occurrence, function, and evolution. American Naturalist 169 (1), pp. S145 - S158 (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), pp. S122 - S136 (2007)

Poesel, A.; Dabelsteen, T.; Darden, S.-K.; Delhey, K.; Peters, A.: Territorial responses of male blue tits, Cyanistes caeruleus, to UV-manipulated neighbours. Journal of Ornithology 148 (2), pp. 179 - 187 (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), pp. 339 - 348 (2006)

Delhey, K.; Peters, A.; Johnsen, A.; Kempenaers, B.: Seasonal changes in blue tit crown color: Do they signal individual quality? Behavioral Ecology 17 (5), pp. 790 - 798 (2006)