Publications of Barbara Helm

Van Noordwijk, A. J.; Pulido, F.; Helm, B.; Coppack, T.; Delingat, J.; Dingle, H.; Hedenström, A.; van der Jeugd, H.; Marchetti, C.; Nilsson, A. et al.; Perez-Tris, J.: A framework for the study of genetic variation in migratory behaviour. Journal of Ornithology 147 (2), pp. 221 - 233 (2006)

Helm, B.; Gwinner, E.: Carry-over effects of day length during spring migration. Journal of Ornithology 146 (4), pp. 348 - 354 (2005)

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

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

Helm, B.: Coping with extreme conditions: Are desert birds different? Ardea 91, pp. 135 - 139 (2003)

Rappole, J. H.; Helm, B.; Ramos, M. A.: An integrative framework for understanding the origin and evolution of avian migration. Journal of Avian Biology 34 (1), pp. 124 - 128 (2003)

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

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

Helm, B.; Albrecht, H.: Human handedness causes directional asymmetry in avian wing length measurements. Animal Behaviour 60 (6), pp. 899 - 902 (2000)

Helm, B.; Gwinner, E.: Timing of postjuvenal molt in African (Saxicola torquata axillaris) and European (Saxicola torquata rubicola) Stonechats: Effects of genetic and environmental factors. The Auk 116 (3), pp. 589 - 603 (1999)

Goymann, W.; Helm, B.: Seasonality of life histories in tropical birds: Circannual rhythms and Zeitgeber. In: Annual, lunar, and tidal clocks. Patterns and mechanisms of nature's enigmatic rhythms, pp. 247 - 275 (Eds. Numata, H.; Helm, B.). Springer, Tokyo (2014)

Gwinner, E.; Helm, B.; Koolhaas, A.; Battley, P.; Schwabl, I.; Dekinga, A.; Piersma, T.: Avian migration: Temporal multitasking anda case study of melatonin cycles in waders. In: Progress in brain research, Vol. 199, pp. 457 - 479 (Eds. Kalsbeek, A.; Merrow, M.; Roenneberg, T.; Foster, R. G.). Elsevier, Amsterdam (2012)

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

Helm, B.: Migration der Vögel: Zusammenspiel von genetischen Programmen und Umwelteinflüssen. In: Natur und Migration, Vol. 97, pp. 61 - 86 (Ed. zur Hausen, H.). Jahresversammlung der Deutschen Akademie der Naturforscher Leopoldina, Halle (Saale), October 05, 2007 - October 07, 2007. Wissenschaftliche Verlagsgesellschaft, Stuttgart (2008)

Helm, B.; Gwinner, E.: Timing of molt as a buffer in the avian annual cycle. In: Proceedings of the 23. International Ornithological Congress, pp. 703 - 706 (Ed. Schodde, R.). 23. International Ornithological Congress, Beijing, August 11, 2002 - August 17, 2002. (2006)

Helm, B.; Visser, M.: Integrating the avian annual cycle. In: Proceedings of the 23. International Ornithological Congress, pp. 59 - 60 (Ed. Schodde, R.). 23. International Ornithological Congress, Beijing, August 11, 2002 - August 17, 2002. (2006)

Bauer, H.-G.; Helm, B.: Ergebnisse der zusätzlichen Brutvogelkartierung des Universitätsgeländes Konstanz-Egg im Frühjahr 2011. Gutachten für 365° freiraum + umwelt, Überlingen (2011)

Bauer, H.-G.; Helm, B.: 4. Fauna - 4.1 Vögel. Gutachten für 365° freiraum + umwelt, Überlingen (2011)

Bauer, H.-G.; Helm, B.: Verteilung, Häufigkeit und Wertigkeit der Brutvogelarten im Hinblick auf den potenziellen Ausbau des Universitätsgeländes in Konstanz-Egg. Gutachten für die Planungsbüros “365°” und “Senner” (2010)

Helm, B.: Gertrud Bäumer, Philosophinnen Lexikon, pp. 41 - 43 (1994)