Buehler, D. M.; Koolhaas, A.; Van't Hof, T. J.; Schwabl, I.; Dekinga, A.; Piersma, T.; Tieleman, B. I.: No evidence for melatonin-linked immunoenhancement over the annual cycle of an avian species. Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology 195 (5), pp. 445 - 451 (2009)

Butler, L. K.; Bisson, I.-A.; Hayden, T. J.; Wikelski, M.; Romero, L. M.: Adrenocortical responses to offspring-directed threats in two open-nesting birds. General and Comparative Endocrinology 162 (3), pp. 313 - 318 (2009)

Catoni, C.; Peters, A.; Schaefer, H. M.: Dietary flavonoids enhance conspicuousness of a melanin-based trait in male blackcaps but not of the female homologous trait or of sexually monochromatic traits. Journal of Evolutionary Biology 22 (8), pp. 1649 - 1657 (2009)

Chernetsov, N.; Berthold, P.: Die Kurische Nehrung: Eine Landschaft wie aus dem Bilderbuch. Nationalpark 145, pp. 41 - 43 (2009)

Cohas, A.; Bonenfant, C.; Kempenaers, B.; Allaine, D.: Age-specific effect of heterozygosity on survival in alpine marmots, Marmota marmota. Molecular Ecology 18 (7), pp. 1491 - 1503 (2009)

Complojer, M.; Schweigkofler, H.; Schwitzer, J.; Scherer, A.; Schwitzer, G. O.; Schiefenhövel, W.: The preconditions of postpartum dysphoria. Neuropsychiatrie 23 (1), pp. 35 - 41 (2009)

Coppack, T.; Pulido, F.: Proximate control and adaptive potential of protandrous migration in birds. Integrative and Comparative Biology 49 (5), pp. 493 - 506 (2009)

Crofoot, M. C.; Norton, T. M.; Lessnau, R. G.; Viner, T. C.; Chen, T. C.; Mazzaro, L. M.; Yabsley, M. J.: Field anesthesia and health assessment of free-ranging Cebus capucinus in Panama. International Journal of Primatology 30 (1), pp. 125 - 141 (2009)

Dale, J.: Evolution der Lebenslaufvielfalt von Vögeln. Jahrbuch - Max-Planck-Gesellschaft (2009)

Dawideit, B. A.; Phillimore, A. B.; Laube, I.; Leisler, B.; Boehning-Gaese, K.: Ecomorphological predictors of natal dispersal distances in birds. Journal of Animal Ecology 78 (2), pp. 388 - 395 (2009)

Dawy, Z.; Morcos, F.; Weindl, J.; Mueller, J. C.: Translation initiation modeling and mutational analysis based on the 3 '-end of the Escherichia coli 16S rRNA sequence. Biosystems 96 (1), pp. 58 - 64 (2009)

De Dinechin, M.; Ottvall, R.; Quillfeldt, P.; Jouventin, P.: Speciation chronology of rockhopper penguins inferred from molecular, geological and palaeoceanographic data. Journal of Biogeography 36 (4), pp. 693 - 702 (2009)

Dechmann, D. K. N.; Heucke, S. L.; Giuggioli, L.; Safi, K.; Voigt, C. C.; Wikelski, M.: Experimental evidence for group hunting via eavesdropping in echolocating bats. Proceedings of the Royal Society B: Biological Sciences 276 (1668), pp. 2721 - 2728 (2009)

Demongin, L.; Poisbleau, M.; Matias, R.; Granadeiro, J. P.: Adoption of a southern rockhopper penguin (eudyptes chrysocome) chick by a black-browed albatross (thalassarche melonophris). Ornitologia Neotropical 20 (4), pp. 629 - 632 (2009)

Deregnaucourt, S.; Saar, S.; Gahr, M.: Dynamics of crowing development in the domestic Japanese quail (Coturnix coturnix japonica). Proceedings of the Royal Society B: Biological Sciences 276 (1665), pp. 2153 - 2162 (2009)

Dietz, C.; Dietz, I.; Ivanova, T.; Siemers, B. M.: Seasonal and regional scale movements of horseshoe bats (Rhinolophus, Chiroptera: Rhinolophidae) in northern Bulgaria. Nyctalus (N. F.) 14 (1-2), p. 52-64 (2009)

Dingemanse, N. J.; Oosterhof, C.; van der Plas, F.; Barber, I.: Parasitism, head morphology and the strength of morphometric correlations in sticklebacks. Biological Journal of the Linnean Society 96, pp. 759 - 768 (2009)

Dingemanse, N. J.; van der Plas, F.; Wright, J.; Réale, D.; Schrama, M.; Roff, D. A.; van der Zee, E.; Barber, I.: Individual experience and evolutionary history of predation affect expression of heritable variation in fish personality and morphology. Proceedings of the Royal Society B: Biological Sciences 276 (1660), pp. 1285 - 1293 (2009)

Doepfner, M.; Quillfeldt, P.; Bauer, H.-G.: Changes in behavioral time allocation of waterbirds in wing-molt at Lake Constance. Waterbirds 32 (4), pp. 559 - 571 (2009)

Duckworth, A.; Masello, J. F.; Mundry, R.; Quillfeldt, P.: Functional characterization of begging calls in Thin-billed Prions Pachyptila belcheri chicks. Acta Ornithologica 44 (2), pp. 127 - 137 (2009)