Gezeichnetes Bild mit einer Personengruppe, die vor Bäumen und einem Gebäude steht. Die Personengruppe beinhaltet Kinder, Frauen, Männer und eine schwangere Person. Im Hintergrund spielen zwei Personen Ball und eine Person fährt Fahrrad.

Publikationen von Barbara Helm

Zeitschriftenartikel (50)

2019
Zeitschriftenartikel
Helm, B.; van Doren, B. M.; Hoffmann, D.; Hoffmann, U.: Evolutionary response to climate change in migratory pied flycatchers. Current Biology 29 (21), S. 3714 - 3719.e4 (2019)
2016
Zeitschriftenartikel
Bulla, M.; Valcu, M.; Dokter, A. M.; Dondua, A. G.; Kosztolányi, A.; Rutten, A. L.; Helm, B.; Sandercock, B. K.; Casler, B.; Ens, B. J. et al.; Spiegel, C. S.; Hassell, C. J.; Küpper, C.; Minton, C.; Burgas, D.; Lank, D. B.; Payer, D. C.; Loktionov, E. Y.; Nol, E.; Kwon, E.; Smith, F.; Gates, H. R.; Vitnerova, H.; Prüter, H.; Johnson, J. A.; Clair, J. J. H. S.; Lamarre, J.-F.; Rausch, J.; Reneerkens, J.; Conklin, J. R.; Burger, J.; Liebezeit, J.; Bêty, J.; Coleman, J. T.; Figuerola, J.; Hooijmeijer, J. C. E. W.; Alves, J. A.; Smith, J. A. M.; Weidinger, K.; Koivula, K.; Gosbell, K.; Exo, K.-M.; Niles, L.; Koloski, L.; McKinnon, L.; Praus, L.; Klaassen, M.; Giroux, M.-A.; Sládeček, M.; Boldenow, M. L.; Goldstein, M. I.; Šálek, M.; Senner, N. R.; Rönkä, N.; Lecomte, N.; Gilg, O.; Vincze, O.; Johnson, O. W.; Smith, P. A.; Woodard, P. F.; Tomkovich, P. S.; Battley, P. F.; Bentzen, R.; Lanctot, R. B.; Porter, R.; Saalfeld, S. T.; Freeman, S.; Brown, S. C.; Yezerinac, S.; Székely, T.; Montalvo, T.; Piersma, T.; Loverti, V.; Pakanen, V.-M.; Tijsen, W.; Kempenaers, B.: Unexpected diversity in socially synchronized rhythms of shorebirds. Nature 540 (7631), S. 109 - 113 (2016)
Zeitschriftenartikel
Nord, A.; Lehmann, M.; MacLeod, R.; McCafferty, D. J.; Nager, R. G.; Nilsson, J.-Å.; Helm, B.: Evaluation of two methods for minimally invasive peripheral body temperature measurement in birds. Journal of Avian Biology 47 (3), S. 417 - 427 (2016)
2015
Zeitschriftenartikel
Stevenson, T. J.; Visser, M. E.; Arnold, W.; Barrett, P.; Biello, S.; Dawson, A.; Denlinger, D. L.; Dominoni, D. M.; Ebling, F. J.; Elton, S. et al.; Evans, N.; Ferguson, H. M.; Foster, R. G.; Hau, M.; Haydon, D. T.; Hazlerigg, D. G.; Heideman, P. D.; Hopcraft, J. G. C.; Jonsson, N. N.; Kronfeld-Schor, N.; Kumar, V.; Lincoln, G. A.; MacLeod, R.; Martin, S. A. M.; Martinez-Bakker, M.; Nelson, R. J.; Reed, T.; Robinson, J. E.; Rock, D.; Schwartz, W. J.; Steffan-Dewenter, I.; Tauber, E.; Thackeray, S. J.; Umstatter, C.; Yoshimura, T.; Helm, B.: Disrupted seasonal biology impacts health, food security and ecosystems. Proceedings of the Royal Society B: Biological Sciences 282 (1817), 20151453 (2015)
2014
Zeitschriftenartikel
Mortega, K. G.; Flinks, H.; Helm, B.: Behavioural response of a migratory songbird to geographic variation of song and morphology. Frontiers in Zoology 11, 85 (2014)
Zeitschriftenartikel
Versteegh, M. A.; Helm, B.; Kleynhans, E. J.; Gwinner, E.; Tieleman, B. I.: Genetic and phenotypically flexible components of seasonal variation in immune function. The Journal of Experimental Biology 217 (9), S. 1510 - 1518 (2014)
2013
Zeitschriftenartikel
Dominoni, D. M.; Goymann, W.; Helm, B.; Partecke, J.: Urban-like night illumination reduces melatonin release in European blackbirds (Turdus merula): Implications of city life for biological time-keeping of songbirds. Frontiers in Zoology 10, 60 (2013)
Zeitschriftenartikel
Dominoni, D. M.; Helm, B.; Lehmann, M.; Dowse, H. B.; Partecke, J.: Clocks for the city: Circadian differences between forest and city songbirds. Proceedings of the Royal Society B: Biological Sciences 280 (1763), 20130593 (2013)
Zeitschriftenartikel
Helm, B.; Ben-Shlomo, R.; Sheriff, M. J.; Hut, R. A.; Foster, R.; Barnes, B. M.; Dominoni, D. M.: Annual rhythms that underlie phenology: Biological time-keeping meets environmental change. Proceedings of the Royal Society B: Biological Sciences 280 (1765), 20130016 (2013)
Zeitschriftenartikel
Holland, R. A.; Helm, B.: A strong magnetic pulse affects the precision of departure direction of naturally migrating adult but not juvenile birds. Interface: Journal of the Royal Society 10 (81), 20121047 (2013)
Zeitschriftenartikel
Steiger, S. S.; Valcu, M.; Spoelstra, K.; Helm, B.; Wikelski, M.; Kempenaers, B.: When the sun never sets: Diverse activity rhythms under continuous daylight in free-living arctic-breeding birds. Proceedings of the Royal Society B: Biological Sciences 280 (1764), 20131016 (2013)
2012
Zeitschriftenartikel
Goymann, W.; Helm, B.; Jensen, W.; Schwabl, I.; Moore, I. T.: A tropical bird can use the equatorial change in sunrise and sunset times to synchronize its circannual clock. Proceedings of the Royal Society B: Biological Sciences 279 (1742), S. 3527 - 3534 (2012)
Zeitschriftenartikel
Lehmann, M.; Spoelstra, K.; Visser, M. E.; Helm, B.: Effects of temperature on circadian clock and chronotype: An experimental study on a passerine bird. Chronobiology International 29 (8), S. 1062 - 1071 (2012)
Zeitschriftenartikel
Ramenofsky, M.; Cornelius, J. M.; Helm, B.: Physiological and behavioral responses of migrants to environmental cues. Journal of Ornithology 153 (Suppl. 1), S. 181 - 191 (2012)
Zeitschriftenartikel
Versteegh, M. A.; Helm, B.; Gwinner, E.; Tieleman, B. I.: Annual cycles of metabolic rate are genetically determined but can be shifted by phenotypic flexibility. The Journal of Experimental Biology 215 (19), S. 3459 - 3466 (2012)
2010
Zeitschriftenartikel
Baldwin, M. W.; Winkler, H.; Organ, C. L.; Helm, B.: Wing pointedness associated with migratory distance in common-garden and comparative studies of stonechats (Saxicola torquata). Journal of Evolutionary Biology 23 (5), S. 1050 - 1063 (2010)
Zeitschriftenartikel
Helm, B.; Visser, M. E.: Heritable circadian period length in a wild bird population. Proceedings of the Royal Society B: Biological Sciences 277 (1698), S. 3335 - 3342 (2010)
Zeitschriftenartikel
Tieleman, B. I.; Croese, E.; Helm, B.; Versteegh, M. A.: Repeatability and individual correlates of microbicidal capacity of bird blood. Comparative Biochemistry and Physiology A-Molecular & Integrative Physiology 156 (4), S. 537 - 540 (2010)
Zeitschriftenartikel
Visser, M. E.; Caro, S. P.; van Oers, K.; Schaper, S. V.; Helm, B.: Phenology, seasonal timing and circannual rhythms: Towards a unified framework. Philosophical Transactions of the Royal Society of London, Series B: Biological Sciences 365 (1555), S. 3113 - 3127 (2010)
2009
Zeitschriftenartikel
Buchmann, M.; Helm, B.; Rothery, P.; Flinks, H.: Auswirkung von Spätbruten auf Mauser und Rückkehrrate bei einem Weitstreckenzieher, dem Steinschmätzer (Oenanthe oenanthe). Vogelwarte - Zeitschrift für Vogelkunde 47 (2), S. 125 - 133 (2009)
Zeitschriftenartikel
Helm, B.: Geographically distinct reproductive schedules in a changing world: Costly implications in captive Stonechats. Integrative and Comparative Biology 49 (5), S. 563 - 579 (2009)
Zeitschriftenartikel
Helm, B.; Schwabl, I.; Gwinner, E.: Circannual basis of geographically distinct bird schedules. The Journal of Experimental Biology 212 (9), S. 1259 - 1269 (2009)
Zeitschriftenartikel
Kalthoff, D.; Breithaupt, A.; Helm, B.; Teifke, J. P.; Beer, M.: Migratory status is not related to the susceptibility to HPAIV H5N1 in an insectivorous passerine species. PLoS One 4 (7), e6170 (2009)
Zeitschriftenartikel
Mukhin, A.; Grinkevich, V.; Helm, B.: Under cover of darkness: Nocturnal life of diurnal birds. Journal of Biological Rhythms 24 (3), S. 225 - 231 (2009)
Zeitschriftenartikel
Silverin, B.; Gwinner, E.; Van't Hof, T. J.; Schwabl, I.; Fusani, L.; Hau, M.; Helm, B.: Persistent diel melatonin rhythmicity during the Arctic summer in free-living willow warblers. Hormones and Behavior 56 (1), S. 163 - 168 (2009)
Zeitschriftenartikel
Tieleman, B. I.; Versteegh, M. A.; Fries, A.; Helm, B.; Dingemanse, N. J.; Gibbs, H. L.; Williams, J. B.: Genetic modulation of energy metabolism in birds through mitochondrial function. Proceedings of the Royal Society B: Biological Sciences 276 (1662), S. 1685 - 1693 (2009)
Zeitschriftenartikel
Tieleman, B. I.; Versteegh, M. A.; Helm, B.; Dingemanse, N. J.: Quantitative genetics parameters show partial independent evolutionary potential for body mass and metabolism in stonechats from different populations. Journal of Zoology 279 (2), S. 129 - 136 (2009)
2008
Zeitschriftenartikel
Flinks, H.; Helm, B.; Rothery, P.: Plasticity of moult and breeding schedules in migratory European Stonechats Saxicola rubicola. Ibis 150 (4), S. 687 - 697 (2008)
Zeitschriftenartikel
Illera, J. C.; Richardson, D. S.; Helm, B.; Atienza, J. C.; Emerson, B. C.: Phylogenetic relationships, biogeography and speciation in the avian genus Saxicola. Molecular Phylogenetics and Evolution 48 (3), S. 1145 - 1154 (2008)
Zeitschriftenartikel
Illera, J.C.; Richardson, D. S.; Helm, B.; Atienza, J. C.; Emerson, B. C.: En busca de los origenes de las tarabillas del mundo. La Garcilla 136, S. 14 - 17 (2008)
Zeitschriftenartikel
Versteegh, M. A.; Helm, B.; Dingemanse, N. J.; Tieleman, B. I.: Repeatability and individual correlates of basal metabolic rate and total evaporative water loss in birds: A case study in European stonechats. Comparative Biochemistry and Physiology A-Molecular & Integrative Physiology 150 (4), S. 452 - 457 (2008)
Zeitschriftenartikel
Wikelski, M.; Martin, L. B.; Scheuerlein, A.; Robinsoni, M. T.; Robinson, N. D.; Helm, B.; Hau, M.; 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: Biological Sciences 363 (1490), S. 411 - 423 (2008)
Zeitschriftenartikel
Woog, F.; Wink, M.; Rastegar-Pouyani, E.; Gonzalez, J.; Helm, B.: Distinct taxonomic position of the Madagascar stonechat (Saxicola torquatus sibilla) revealed by nucleotide sequences of mitochondrial DNA. Journal of Ornithology 149 (3), S. 423 - 430 (2008)
2007
Zeitschriftenartikel
Hedenström, A.; Barta, Z.; Helm, B.; Houston, A. I.; McNamara, J. M.; Jonzen, N.: Migration speed and scheduling of annual events by migrating birds in relation to climate change. Climate Research 35 (1-2), S. 79 - 91 (2007)
Zeitschriftenartikel
Kumar, V.; Rani, S.; Malik, S.; Trivedi, A. K.; Schwabl, I.; Helm, B.; Gwinner, E.: Daytime light intensity affects seasonal timing via changes in the nocturnal melatonin levels. Die Naturwissenschaften 94 (8), S. 693 - 696 (2007)
2006
Zeitschriftenartikel
Helm, B.: Zugunruhe of migratory and non-migratory birds in a circannual context. Journal of Avian Biology 37 (6), S. 533 - 540 (2006)
Zeitschriftenartikel
Helm, B.: Jahreszeitliches Verhalten in verschiedenen Lebensraumen: Vergleichende Studien an Schwarzkehlchen. Vogelwarte - Zeitschrift für Vogelkunde 44 (1), S. 26 - 27 (2006)
Zeitschriftenartikel
Helm, B.; Fiedler, W.; Callion, J.: Movements of European Stonechats Saxicola torquata according to ringing recoveries. Ardea 94 (1), S. 33 - 44 (2006)
Zeitschriftenartikel
Helm, B.; Gwinner, E.: Migratory restlessness in an equatorial nonmigratory bird. PLoS Biology 4 (4), S. 611 - 614 (2006)
Zeitschriftenartikel
Helm, B.; Piersma, T.; Van der Jeugd, H.: Sociable schedules: Interplay between avian seasonal and social behaviour. Animal Behaviour 72 (2), S. 245 - 262 (2006)
Zeitschriftenartikel
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), S. 221 - 233 (2006)
2005
Zeitschriftenartikel
Helm, B.; Gwinner, E.: Carry-over effects of day length during spring migration. Journal of Ornithology 146 (4), S. 348 - 354 (2005)
Zeitschriftenartikel
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, S. 216 - 227 (2005)
2004
Zeitschriftenartikel
Helm, B.: Combatting misogyny? Responses to Nietzsche by Turn-of-the-Century German Women. Journal of Nietzsche Studies 27, S. 64 - 84 (2004)
2003
Zeitschriftenartikel
Helm, B.: Coping with extreme conditions: Are desert birds different? Ardea 91, S. 135 - 139 (2003)
Zeitschriftenartikel
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), S. 124 - 128 (2003)
2002
Zeitschriftenartikel
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, S. 579 - 594 (2002)
2001
Zeitschriftenartikel
Helm, B.; Gwinner, E.: Nestling growth and post-juvenile molt under tight seasonal schedule: Stonechats from Kazakhstan, Saxicola torquata maura. Avian Science 1 (1), S. 31 - 42 (2001)
2000
Zeitschriftenartikel
Helm, B.; Albrecht, H.: Human handedness causes directional asymmetry in avian wing length measurements. Animal Behaviour 60 (6), S. 899 - 902 (2000)
1999
Zeitschriftenartikel
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), S. 589 - 603 (1999)
Zur Redakteursansicht