Publikationen von Barbara Helm
Alle Typen
Zeitschriftenartikel (50)
1.
Zeitschriftenartikel
Evolutionary response to climate change in migratory pied flycatchers. Current Biology 29 (21), S. 3714 - 3719.e4 (2019)
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: Unexpected diversity in socially synchronized rhythms of shorebirds. Nature 540 (7631), S. 109 - 113 (2016)
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Evaluation of two methods for minimally invasive peripheral body temperature measurement in birds. Journal of Avian Biology 47 (3), S. 417 - 427 (2016)
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: Disrupted seasonal biology impacts health, food security and ecosystems. Proceedings of the Royal Society B: Biological Sciences 282 (1817), 20151453 (2015)
5.
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Behavioural response of a migratory songbird to geographic variation of song and morphology. Frontiers in Zoology 11, 85 (2014)
6.
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Genetic and phenotypically flexible components of seasonal variation in immune function. The Journal of Experimental Biology 217 (9), S. 1510 - 1518 (2014)
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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)
8.
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Clocks for the city: Circadian differences between forest and city songbirds. Proceedings of the Royal Society B: Biological Sciences 280 (1763), 20130593 (2013)
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Annual rhythms that underlie phenology: Biological time-keeping meets environmental change. Proceedings of the Royal Society B: Biological Sciences 280 (1765), 20130016 (2013)
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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)
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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)
12.
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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)
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Effects of temperature on circadian clock and chronotype: An experimental study on a passerine bird. Chronobiology International 29 (8), S. 1062 - 1071 (2012)
14.
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Physiological and behavioral responses of migrants to environmental cues. Journal of Ornithology 153 (Suppl. 1), S. 181 - 191 (2012)
15.
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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)
16.
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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)
17.
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Heritable circadian period length in a wild bird population. Proceedings of the Royal Society B: Biological Sciences 277 (1698), S. 3335 - 3342 (2010)
18.
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Repeatability and individual correlates of microbicidal capacity of bird blood. Comparative Biochemistry and Physiology A-Molecular & Integrative Physiology 156 (4), S. 537 - 540 (2010)
19.
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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)
20.
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Auswirkung von Spätbruten auf Mauser und Rückkehrrate bei einem Weitstreckenzieher, dem Steinschmätzer (Oenanthe oenanthe). Vogelwarte - Zeitschrift für Vogelkunde 47 (2), S. 125 - 133 (2009)
21.
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Geographically distinct reproductive schedules in a changing world: Costly implications in captive Stonechats. Integrative and Comparative Biology 49 (5), S. 563 - 579 (2009)
22.
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Circannual basis of geographically distinct bird schedules. The Journal of Experimental Biology 212 (9), S. 1259 - 1269 (2009)
23.
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Migratory status is not related to the susceptibility to HPAIV H5N1 in an insectivorous passerine species. PLoS One 4 (7), e6170 (2009)
24.
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Under cover of darkness: Nocturnal life of diurnal birds. Journal of Biological Rhythms 24 (3), S. 225 - 231 (2009)
25.
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Persistent diel melatonin rhythmicity during the Arctic summer in free-living willow warblers. Hormones and Behavior 56 (1), S. 163 - 168 (2009)
26.
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Genetic modulation of energy metabolism in birds through mitochondrial function. Proceedings of the Royal Society B: Biological Sciences 276 (1662), S. 1685 - 1693 (2009)
27.
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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)
28.
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Plasticity of moult and breeding schedules in migratory European Stonechats Saxicola rubicola. Ibis 150 (4), S. 687 - 697 (2008)
29.
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Phylogenetic relationships, biogeography and speciation in the avian genus Saxicola. Molecular Phylogenetics and Evolution 48 (3), S. 1145 - 1154 (2008)
30.
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En busca de los origenes de las tarabillas del mundo. La Garcilla 136, S. 14 - 17 (2008)
31.
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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)
32.
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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)
33.
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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)
34.
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Migration speed and scheduling of annual events by migrating birds in relation to climate change. Climate Research 35 (1-2), S. 79 - 91 (2007)
35.
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Daytime light intensity affects seasonal timing via changes in the nocturnal melatonin levels. Die Naturwissenschaften 94 (8), S. 693 - 696 (2007)
36.
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Zugunruhe of migratory and non-migratory birds in a circannual context. Journal of Avian Biology 37 (6), S. 533 - 540 (2006)
37.
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Jahreszeitliches Verhalten in verschiedenen Lebensraumen: Vergleichende Studien an Schwarzkehlchen. Vogelwarte - Zeitschrift für Vogelkunde 44 (1), S. 26 - 27 (2006)
38.
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Movements of European Stonechats Saxicola torquata according to ringing recoveries. Ardea 94 (1), S. 33 - 44 (2006)
39.
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Migratory restlessness in an equatorial nonmigratory bird. PLoS Biology 4 (4), S. 611 - 614 (2006)
40.
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Sociable schedules: Interplay between avian seasonal and social behaviour. Animal Behaviour 72 (2), S. 245 - 262 (2006)
41.
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: A framework for the study of genetic variation in migratory behaviour. Journal of Ornithology 147 (2), S. 221 - 233 (2006)
42.
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Carry-over effects of day length during spring migration. Journal of Ornithology 146 (4), S. 348 - 354 (2005)
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Flexible seasonal timing and migratory behavior: Results from stonechat breeding programs. Annals of the New York Academy of Sciences 1046, S. 216 - 227 (2005)
44.
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Combatting misogyny? Responses to Nietzsche by Turn-of-the-Century German Women. Journal of Nietzsche Studies 27, S. 64 - 84 (2004)
45.
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Coping with extreme conditions: Are desert birds different? Ardea 91, S. 135 - 139 (2003)
46.
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An integrative framework for understanding the origin and evolution of avian migration. Journal of Avian Biology 34 (1), S. 124 - 128 (2003)
47.
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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)
48.
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Nestling growth and post-juvenile molt under tight seasonal schedule: Stonechats from Kazakhstan, Saxicola torquata maura. Avian Science 1 (1), S. 31 - 42 (2001)
49.
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Human handedness causes directional asymmetry in avian wing length measurements. Animal Behaviour 60 (6), S. 899 - 902 (2000)
50.
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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)