Max Planck Institute for Ornithology

Tieleman BI, Croese E, Helm B, Versteegh MA: Repeatability and individual correlates of microbicidal capacity of bird blood. Comparative Biochemistry and Physiology, Part A, 156: 537-540 (2010)

Helm, B. and Visser, M.: Heritable circadian period length in a wild bird population. Proceedings of the Royal Society of London Series B, 277, 1698: 3335-3342 (2010)

Visser, M., S. Schaper, K. van Oers, S. Caro and B. Helm: Phenology, seasonal timing and circannual rhythms: towards a unified framework. Philosophical Transactions of the Royal Society of London Series B, 365, 1555: 3113-3127 (2010)

Baldwin, M., H. Winkler, C. Organ and B. Helm: Ecomorphological and evolutionary dynamics of morphology in Stonechats, Saxicola torquata, along a migratory gradient. Journal of Evolutionary Biology, 23, 1050-1063 (2010)

Kalthoff, D., Breithaupt, A., Helm, B., Teifke, J.P. and Beer, M.: Migratory status is not related to the susceptibility to HPAIV H5N1 infection of Stonechats (Saxicola torquata). PLoS ONE, 4, e6170 (2009)

Tieleman, B.I., Versteegh, M.A., Helm, B. and Dingemanse, N.J.: Quantitative genetics parameters show independent evolutionary potential for body mass and metabolism in stonechats from different populations. Journal of Zoology, 279, 129-136 (2009)

Helm, B., Schwabl, I. and Gwinner, E.: Circannual basis of geographically distinct bird schedules. Journal of Experimental Biology, 212, 1259-1269 (2009)

Mukhin, A., Grinkevich, V., Helm, B.: Under cover of darkness: nocturnal life of diurnal birds. Journal of Biological Rhythms 24, 3: 225-231 (2009)

Silverin, B., Gwinner,E., Van’t Hof, T.J., Schwabl, I., Fusani, L., Hau, M. and Helm, B.: Persistent diel melatonin rhythmicity during the Arctic summer in free-living willow warblers. Hormones and Behavior 56, 1: 163-168 (2009)

Tieleman, I., Versteegh, M., Fries, A., Helm, B., Dingemanse, N., Gibbs, H.L. and Williams, J.B.: Genetic modulation of energy metabolism in birds through mitochondrial function. Proceedings of the Royal Society of London Series B, 276 (1662): 1685-1693 (2009)

Helm, B.: Geographically distinct reproductive schedules in a changing world: costly implications in captive Stonechats. Integrative and Comparative Biology, 49: 563-579 (2009)

Flinks, H., Helm, B. and Rothery, P.: Plasticity of molt and breeding schedules in migratory Stonechats. Ibis, 150, 687-697 (2008)

Illera, J.C., Richardson, D.S., Helm, B., Atienza, J.C. and Emerson, B.C.: Phylogenetic relationships, biogeography and speciation in the avian genus Saxicola. Molecular Phylogenetics and Evolution, 48, 1145-1154 (2008)

Woog, F., Wink, M., Rastegar-Pouyani, E., Gonzalez, J. and Helm, B.: Distinct taxonomic position of the Madagascar Stonechat (Saxicola torquatus sibilla) revealed by nucleotide sequences of mitochondrial DNA. Journal of Ornithology 149, 423-430 (2008)

Versteegh, M.A., Helm, B., Dingemanse, N.J. and Tieleman, B.I.: Repeatability of basal metabolic rate and total evaporative water loss in birds: a case study in European Stonechats. Comparative Biology and Physiology, 150, 452-457 (2008)

Wikelski, M., Martin, L.B., Scheuerlein, A., Robinson, M.T., Robinson, N.D., Helm, B., Hau, M. and Gwinner, E.: Avian circannual clocks: Adaptive significance and possible involvement of energy turnover in their proximate control. Philosophical Transactions of the Royal Society of London Series B, 363, 411-423 (2008)

Kumar, V., Rani, S., Malik, S., Trivedi, A., Schwabl, I., Helm, B. and Gwinner, E.: Daytime light intensity affects seasonal timing via changes in the nocturnal melatonin levels. Naturwissenschaften, 94, 693-696 (2007)

Hedenström, A., Barta, Z., Helm, B., Houston, A., McNamara, J. and Jonzén, N.: Migration speed and scheduling of annual events by migrating birds in relation to climate change. Climate Research 35, 79-91 (2007)

Helm, B., Fiedler, W. and Callion, J.: Movements of European Stonechats according to ringing recoveries. Ardea, 94, 33-44

Helm, B. and Gwinner, E.: Migratory restlessness in an equatorial non-migratory bird. PLoS Biology 4, 611-614

Helm, B., Piersma, T. and Van der Jeugd, H.: Sociable schedules: interplay between avian social and seasonal behavior. Animal Behavior 72, 245-262; 1215 (2006)

Van Noordwijk, A., Pulido, F., Helm, B., Coppack, T., Delingat, J., Dingle, H., Hedenström, A., van der Jeugd, H., Marchetti, C., Nilsson, A. and Pérez-Tris, J.: A framework for the study of genetic variation in migratory behavior. Journal of Ornithology, 147, 221-234 (2006)

Helm, B.: Point of view: Zugunruhe of migratory and non-migratory birds in a circannual context. Journal of Avian Biology, 37, 533-540 (2006)

Helm B., Gwinner, E. and Trost, L.: Flexible seasonal timing and migratory behavior: results from Stonechat breeding programs. Annals of the New York Academy of Sciences 1046, 216-227 (2005)

Helm, B. and Gwinner, E.: Carry-over effects of day length during spring migration. Journal of Ornithology, 146, 348-354. Special issue for Ebo Gwinner (2005)

Rappole, J., Helm, B. and Ramos, M.: An integrative framework for understanding the origin and evolution of avian migration. Journal of Avian Biology 34, 125-129 (2003)

König, S., Gwinner, E. and Helm, B.: Programmed patterns of territorial aggression in first-year European and African Stonechats (Saxicola torquata rubicola and S. t. axillaris) . Ecology of Birds 24, 579-594 (2002)

Helm, B. and Gwinner, E.: Nestling growth and post-juvenile molt under tight seasonal schedule: Stonechats from Kazakhstan, Saxicola torquata maura. Avian Science 1, 31-42 (2001)

Helm, B. and Albrecht, H.: Human handedness causes directional asymmetry in avian wing length measurements. Animal Behavior 60, 899-902 (2000)

Helm, B. and Gwinner, E.: Timing of postjuvenal molt in African (Saxicola torquata axillaris) and European (Saxicola torquata rubicola) Stonechats: Effects of genetic and environmental factors. Auk 116, 589-603 (1999)

Other scientific publications

Buchmann, M., Helm, B., Rothery, P. and Flinks, H.: Consequences of late breeding on moult and recovery rate of a long-distance migrant, the Wheatear (Oenanthe oenanthe) [in German]. Vogelwarte, 47, 125-133 (2009)

Illera, J.C., Richardson, D.S., Helm, B., Atienza, J.C. and Emerson, B.C.: En busca de los origenes de las tarabillas del mundo. La Garcilla, 136, 14-17 (2008)

Helm, B.: Migration of birds: Interaction of genetical programs and environmental influences [in German]. Nova Acta Leopoldina (Proceedings of the German National Academy of Sciences) NF 358, 61-86 (2008)

Helm, B. and Gwinner, E.: Timing of molt as a buffer in the avian annual cycle. In Schodde, R. (ed.) Proceedings of the 23. International Ornithological Congress Beijing, 703-706 (2006)

Helm, B. and Visser, M.: Integrating the avian annual cycle. In Schodde, R. (ed.) Proceedings of the 23. International Ornithological Congress Beijing 2002, 59-60 (2006)

Helm, B.: Jahreszeitliches Verhalten in verschiedenen Lebensräumen: vergleichende Studien an Schwarzkehlchen. Vogelwarte 44, 26-27 (2006)

Helm, B. and Goymann, W.: Eberhard Gwinner 26.12.1938 - 7.9.2004. In: Max-Planck-Gesellschaft (ed.) Jahrbuch der Max-Planck-Gesellschaft 2005, München, pp. 108-109 (2005)

Helm, B., Goymann, W. and Kempenaers, B.: Eberhard Gwinner (1938-2004). Association for the Study of Animal Behavior Newsletter 52, 10 (2004)

Gwinner, E. and Helm, B.: Circannual and circadian contributions to the timing of avian migration. In: P. Berthold, E. Gwinner and E. Sonnenschein (eds.) Avian Migration. Springer Verlag Heidelberg, pp. 81-95 (2003)

Helm, B.: Coping with extreme conditions: Are desert birds different? Tieleman, B.I. 2002. Avian adaptation along an aridity gradient. Physiology, behavior, and life history. Proefschrift Rijksuniversitetit Groningen, 367 pp. Ardea 91, 135-139 (2003)

Publications outside biology

Helm, B.: Combatting misogyny? Responses to Nietzsche by Turn-of-the-Century German Women. Journal of Nietzsche Studies 27, 64-84 (2004)

Helm, B.: Sandra Harding (ed.): The "racial" economy of science. Bloomington 1993 (Indiana University Press). 544 pp. Philosophin 9, 101-104 (1994)

Helm, B.: Elizabeth Grosz (ed.): Hypatia. Special issue: Feminism and the body. Bloomington 1991 (Indiana University Press). 240 pp. Philosophin 10, 105-107 (1994)

Helm, B.: Gertrud Bäumer. In: Meyer. U, and Bennent-Vahle, H. (eds.) Philosophinnen Lexikon (Encyclopedia of women philosophers). Einfach Verlag Aachen, pp. 41-43 (1994)

Helm, B.: Bertha von Suttner. In: Meyer. U, and Bennent-Vahle, H. (eds.) Philosophinnen Lexikon (Encyclopedia of women philosophers). Einfach Verlag Aachen, pp. 312-315 (1994)

Helm, B.: Helene Stöcker. In: Meyer. U, and Bennent-Vahle, H. (eds.) Philosophinnen Lexikon (Encyclopedia of women philosophers). Einfach Verlag Aachen, pp. 306-309 (1994)

Helm, B.: Clara Zetkin. In: Meyer. U, and Bennent-Vahle, H. (eds.) Philosophinnen Lexikon (Encyclopedia of women philosophers). Einfach Verlag Aachen, pp. 365-368 (1994)

Helm, B.: Women philosophers in Europe 1992 - Future without discrimination? VI. Symposium of the International Association of Women in Philosophy (IAPh) in Amsterdam, 22.-25.4.92. Philosophin 6, 97-104 (1992)

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