Dr Barbara Helm

  • Reader (Institute of Biodiversity Animal Health and Comparative Medicine)
  • Associate - Life Sciences (School of Life Sciences)

telephone: 2797
email: Barbara.Helm@glasgow.ac.uk

Biography

  • MA (Diplom) Biology, University of Tuebingen, Germany (1997); MA Philosophy, University of Tuebingen (1997)
  • PhD Biology, Ludwig-Maximilians-University, Munich, Germany (2003)

Contact details:

Institute of Biodiversity, Animal Health and Comparative Medicine
Graham Kerr Building & Jarrett Building, Garscube Estate
University of Glasgow
UK - Glasgow G12 8QQ

Tel: +44 (0)141 330 2797 (Graham Kerr), 330 5794 (Garscube)

Research interests

Research interests: Chronobiology, ornithology, migration

Research Interests - Further Information

Google Scholar - Publications Profile

Grants

Grants and Awards listed are those received whilst working with the University of Glasgow.

  • Effect of circadian disruption on telomere dynamics
    Biotechnology and Biological Sciences Research Council
    2017 - 2020
     
  • Clocking the life of a nocturnal predator
    Royal Society
    2017 - 2018
     
  • Gene expression patterns in brains of great tits
    European Research Council
    2015 - 2016
     
  • Environmental research for a changing world
    Wellcome Trust
    2014 - 2014
     
  • Wildclocks
    European Commission
    2014 - 2017
     
  • Gene expression and metabolomic phenotype in response to artificial light at night (ISSF STS)
    Wellcome Trust
    2013 - 2014
     

Additional information

Editorial Board

  • 2007 - ongoing: Journal of Avian Biology, Sweden - Science Editor
  • 2006 - ongoing: Journal of Avian Biology
  • - ongoing: Book (may not yet be in print) - Numata, H. & Helm, B. (eds.): Annual, Lunar and Tidal Clocks: Patterns and Mechanisms of Nature's Enigmatic Rhythms. Springer Japan, Tokyo

Grant Advisory Board

  • 2009 - ongoing: German Ornithological Society (DO-G) - Research Committee
  • - ongoing: European Cooperation in Science and Technology (COST) - Co-Chair, Management Committee and Working Group. Action 'Loss of the Night Network (LoNNe)'

Invited International Presentations

  • 2013: Glasgow, UK (organizing) - Symposium, Seasons of Life: Biological Rhythms Underlying Healthy Living. (Conveners: B. Helm, Marcel Visser, Jane Robinson, Neil Evans and Russell Foster)
  • 2013: Strasbourg, France - Under cover of darkness: nocturnal life of diurnal birds. International Workshop Understanding the neural basis of diurnality
  • 2013: Munich, Germany - Circadian clocks and the real world: an avian perspective. The Gwinner Lecture. Plenary, 13th Biennial Meeting of the European Biological Rhythms Society.
  • 2012: Ein Gedi, Israel - Night activity in diurnal birds: temporal programs and environmental regulation. International Workshop. The Diversity, Evolution and Mechanisms Controlling Activity Patterns. Rothschild Foundation
  • 2012: Loch Lomond, UK (organizing) - Workshop, Approaches to investigating circannual and annual rhythms. (Conveners: B. Helm, Jane Robinson and Neil Evans)
  • 2011: Kristineberg, Sweden - Reassessing circadian and circannual contributions to avian migration. Wenner-Gren-Foundations Symposium Animal Migration
  • 2011: Oxford, UK - Temporal multi-tasking: Performance of migratory birds on different time scales. Keynote lecture, Symposium Enigmatic clocks: circannual and circatidal rhythms, 12th Biennial Meeting of the European Biological Rhythms Society
  • 2010: Sandestin, Florida, USA - Circannual rhythms: organismal approaches to elusive periodic timers. Symposium Seasonal and Reproductive Rhythms, 12th Biennial Meeting of the Society for Research on Biological Rhythms
  • 2009: Boston, Massachusetts, USA - Temporal coordination of life-cycle stages: an avian chronobiology perspective. Symposium Evolution of mechanisms controlling timing of breeding in animals, Annual meeting of the Society for Integrative and Comparative Biology
  • 2009: Regensburg, Germany - Clocks, calendars, and seasonal modulations: time management of birds. Evening lecture upon receiving the Walther-Arndt award. Annual meeting of the German Zoological Society
  • 2009: Zurich, Switzerland - Programs, cues, and flexibility: seasonal timing in birds. Plenary lecture, Biannual meeting of the European Ornithologists Union
  • 2008: Israel - Multi-faceted association between migration, diet, and seasonal and circadian clock gene expression in birds (B. Helm & R. Ben-Shlomo). German-Israeli Year of Science and Technology, Tel Hai Academic College
  • 2008: Portland, Oregon, USA - Tracking immuno-competence as a carry-over effect throughout the annual cycle (Kirk C. Klasing & B. Helm). Symposium: The physiological underpinnings of carry-over effects. Annual meeting of the American Ornithologists Union
  • 2008: Leiden, the Netherlands - The road ahead. Outlook statement. Lorentz Center Life-Science Workshop Keeping track of the seasons: Ecological and physiological control of annual cycles of birds and mammals

Prizes, Awards and Distinctions

  • 2012: Zoology and Behavioural Physiology, Konstanz, Germany - Habilitation, Venia Legendi
  • 2010: Wolfgang-Pauli Institute (WPI) - Invited fellow
  • 2010: Konstanz, Germany - Margarete von Wrangell Fellow
  • 2009: German Zoological Society - Walther-Arndt Prize
  • 2004: Max Planck Society - Otto-Hahn Medal

Professional Learned Society

  • 2013 - ongoing: British Ornithologists' Union (BOU)
  • 2011 - ongoing: Royal Institute for Navigation (RIN) - Associate Member
  • 2009 - ongoing: German Ornithological Society (DO-G) - Research Committee
  • 2009 - ongoing: European Biological Rhythms Society (EBRS)
  • 2008 - ongoing: German Zoological Society (DZG)
  • 2008 - ongoing: Society for Integrative and Comparative Biology (SICB)
  • 2007 - ongoing: Society for Research on Biological Rhythms (SRBR)
  • 1982 - ongoing: German Ornithological Society (DO-G)
  • - ongoing: Society for Research on Biological Rhythms (SRBR) - Member of Chronohistory Committee

Research Fellowship

  • 2013 - ongoing: WissenLeben - Scientific advisory board, NGO Science communication in the area of ecology and climate change
  • - ongoing: Scottish Centre for Ecology and the Natural Environment (SCENE) - Deputy Director, SCENE Field Station
  • - ongoing: RSPB and BTO - Invited advisor, Critically endangered species, Spoonbilled sandpiper taskforce
  • - ongoing: International Max Planck Research School (IMPRS) - Faculty and Board Member, International Max Planck Research School for Organismal Biology

Publications

List by: Type | Date

Jump to: 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2003 | 2002 | 2000 | 1999
Number of items: 63.

2017

Helm, B., Visser, M.E., Schwartz, W., Kronfeld-Schor, N., Gerkema, M., Piersma, T. and Bloch, G. (2017) Two sides of a coin: ecological and chronobiological perspectives of timing in the wild. Philosophical Transactions of the Royal Society B: Biological Sciences, (Accepted for Publication)

Schwartz, W., Helm, B. and Gerkema, M. (2017) Wild clocks. Philosophical Transactions of the Royal Society B: Biological Sciences, (Accepted for Publication)

Van Doren, B. M., Campagna, L., Helm, B., Illera, J. C., Lovette, I. J. and Liedvogel, M. (2017) Correlated patterns of genetic diversity and differentiation across an avian family. Molecular Ecology, 26(15), pp. 3982-3997. (doi:10.1111/mec.14083) (PMID:28256062)

Åkesson, S., Ilieva, M., Karagicheva, J., Rakhimberdiev, E., Tomotani, B. and Helm, B. (2017) Timing avian long-distance migration: from internal clock mechanisms to global flights. Philosophical Transactions of the Royal Society B: Biological Sciences, (Accepted for Publication)

Pollock, C., Capilla-Lasheras, P., McGill, R. A.R. , Helm, B. and Dominoni, D. M. (2017) Integrated behavioural and stable isotope data reveal altered diet linked to low breeding success in urban-dwelling blue tits (Cyanistes caeruleus). Scientific Reports, 7, 5014. (PMID:28694437)

Capilla-Lasheras, P., Dominoni, D. M., Babayan, S. A., O'Shaughnessy, P. J., Mladenova, M., Woodford, L., Pollock, C. J., Barr, T., Baldini, F. and Helm, B. (2017) Elevated immune gene expression is associated with poor reproductive success of urban blue tits. Frontiers in Ecology and Evolution, 5, 64. (doi:10.3389/fevo.2017.00064)

Apfelbeck, B. A., Helm, B., Illera, J. C., Mortega, K. G., Smiddy, P. and Evans, N. P. (2017) Baseline and stress-induced levels of corticosterone in male and female Afrotropical and European temperate stonechats during breeding. BMC Evolutionary Biology, 17, 114. (doi:10.1186/s12862-017-0960-9) (PMID:28532466) (PMCID:PMC5441054)

Apfelbeck, B., Mortega, K. G., Flinks, H., Illera, J. C. and Helm, B. (2017) Testosterone, territorial response, and song in seasonally breeding tropical and temperate Stonechats. BMC Evolutionary Biology, 17(1), 101. (doi:10.1186/s12862-017-0944-9) (PMID:28412929) (PMCID:PMC5392926)

Van Doren, B. M., Liedvogel, M. and Helm, B. (2017) Programmed and flexible: long-term Zugunruhe data highlight the many axes of variation in avian migratory behaviour. Journal of Avian Biology, 48(1), pp. 155-172. (doi:10.1111/jav.01348)

Helm, B. and Lincoln, G. A. (2017) Circannual rhythms anticipate the Earth’s annual periodicity. In: Kumar, V. (ed.) Biological Timekeeping: Clocks, Rhythms and Behaviour. Springer India, pp. 545-569. ISBN 9788132236863 (doi:10.1007/978-81-322-3688-7_26)

Helm, B. and Shavit, A. (2017) Dissecting and reconstructing time and space for replicable biological research. In: Shavit, A. and Ellison, A. M. (eds.) Stepping in the Same River Twice: Replication in Biological Research. Yale University Press: New Haven, pp. 233-249. ISBN 9780300209549

2016

Bulla, M. et al. (2016) Unexpected diversity in socially synchronized rhythms of shorebirds. Nature, 540(7631), pp. 109-113. (doi:10.1038/nature20563) (PMID:27880762)

Bakker, K. M., Martinez-Bakker, M. E., Helm, B. and Stevenson, T. J. (2016) Digital epidemiology reveals global childhood disease seasonality and the effects of immunization. Proceedings of the National Academy of Sciences of the United States of America, 113(24), pp. 6689-6694. (doi:10.1073/pnas.1523941113) (PMID:27247405) (PMCID:PMC4914188)

2015

Malzer, I. and Helm, B. (2015) The seasonal dynamics of artificial nest predation rates along edges in a mosaic managed reedbed. PLoS ONE, 10(10), e0140247. (doi:10.1371/journal.pone.0140247) (PMID:26448338)

Martinez-Bakker, M. and Helm, B. (2015) The influence of biological rhythms on host–parasite interactions. Trends in Ecology and Evolution, 30(6), pp. 314-326. (doi:10.1016/j.tree.2015.03.012) (PMID:25907430)

Goymann, W. and Helm, B. (2015) Seasonality of life-cycles in tropical birds: circannual rhythms and Zeitgeber. In: Numata, H. and Helm, B. (eds.) Annual, Lunar and Tidal Clocks: Patterns and Mechanisms of Nature’s Enigmatic Rhythms. Springer Japan: Tokyo. ISBN 9784431552604

Helm, B. and Stevenson, T. (2015) Circannual rhythms: history, present challenges, future directions. In: Numata, H. and Helm, B. (eds.) Annual, Lunar and Tidal Clocks: Patterns and Mechanisms of Nature’s Enigmatic Rhythms. Springer Japan: Tokyo. ISBN 9784431552604

Nord, A., Lehmann, M., MacLeod, R., McCafferty, D. J., Nager, R. G., Nilsson, J.-Å. and Helm, B. (2015) Evaluation of two methods for minimally invasive peripheral body temperature measurement in birds. Journal of Avian Biology, 47(3), pp. 417-427. (doi:10.1111/jav.00845)

Stevenson, T.J. et al. (2015) Disrupted seasonal biology impacts health, food security and ecosystems. Proceedings of the Royal Society of London Series B: Biological Sciences, 282, 20151453. (doi:10.1098/rspb.2015.1453) (PMID:26468242) (PMCID:PMC4633868)

2014

Mortega, K. G., Flinks, H. and Helm, B. (2014) Behavioural response of a migratory songbird to geographic variation in song and morphology. Frontiers in Zoology, 11, p. 85. (doi:10.1186/s12983-014-0085-6)

Versteegh, M.A., Helm, B., Kleynhans, E., Gwinner, E. and Tieleman, I. (2014) Genetic and phenotypically flexible components of seasonal variation in immune function. Journal of Experimental Biology, 217, pp. 1510-1518. (doi:10.1242/jeb.097105)

2013

Bloch, G., Barnes, B.M., Gerkema, M.P. and Helm, B. (2013) Animal activity around the clock with no overt circadian rhythms: patterns, mechanisms and adaptive value. Proceedings of the Royal Society of London Series B: Biological Sciences, 280(1765), p. 20130019. (doi:10.1098/rspb.2013.0019)

Helm, B., Ben Shlomo, R., Sheriff, M. J., Hut, R. A., Foster, R., Barnes, B. M. and Dominoni, D. (2013) Annual rhythms that underlie phenology: biological time-keeping meets environmental change. Proceedings of the Royal Society of London Series B: Biological Sciences, 280(1765), p. 20130016. (doi:10.1098/rspb.2013.0016)

Bloch, G., Barnes, B.M., Gerkema, M.P. and Helm, B. (2013) Animal activity around-the-clock with no overt circadian rhythms: patterns, mechanisms, and adaptive value. Proceedings of the Royal Society of London Series B: Biological Sciences, 280(1765),

Dominoni, D.M., Helm, B., Lehmann, M., Dowse, H.B. and Partecke, J. (2013) Clocks for the city: circadian differences between forest and city songbirds. Proceedings of the Royal Society of London Series B: Biological Sciences, 280(1763), (doi:10.1098/rspb.2013.0593)

Holland, R.A. and Helm, B. (2013) A strong magnetic pulse affects the precision of departure direction of naturally migrating adult but not juvenile birds. Journal of the Royal Society: Interface, 10(81), Art. 20121047. (doi:10.1098/rsif.2012.1047)

Dominoni, D.M., Goymann, W., Helm, B. and Partecke, J. (2013) 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), (doi:10.1186/1742-9994-10-60)

Steiger, S.S., Valcu, M., Spoelstra, K., Helm, B., Wikelski, M. and Kempenaers, B. (2013) When the sun never sets: diverse activity rhythms under continuous daylight in free-living arctic-breeding birds. Proceedings of the Royal Society of London Series B: Biological Sciences, 280(1764), (doi:10.1098/rspb.2013.1016)

2012

Versteegh, M.A., Helm, B., Gwinner, E. and Tieleman, B.I. (2012) Annual cycles of metabolic rate are genetically determined but can be shifted by phenotypic flexibility. Journal of Experimental Biology, 215(19), pp. 3459-3466. (doi:10.1242/jeb.073445)

Lehmann, M., Spoelstra, K., Visser, M.E. and Helm, B. (2012) Effects of temperature on circadian clock and chronotype: an experimental study on a passerine bird. Chronobiology International, 29(8), pp. 1062-1071. (doi:10.3109/07420528.2012.707159)

Goymann, W., Helm, B., Jensen, W., Schwabl, I. and Moore, I.T. (2012) A tropical bird can use the equatorial change in sunrise and sunset times to synchronize its circannual clock. Proceedings of the Royal Society of London Series B: Biological Sciences, 279(1742), pp. 3527-3534. (doi:10.1098/rspb.2012.0743)

Ramenofsky, M., Cornelius, J.M. and Helm, B. (2012) Physiological and behavioral responses of migrants to environmental cues. Journal of Ornithology, 153(S1), pp. 181-191. (doi:10.1007/s10336-012-0817-3)

Goymann, W., Helm, B., Jensen, W., Schwabl, I. and Moore, I.T. (2012) A tropical bird can use the equatorial change in sunrise and sunset times to synchronize its circannual clock. Proceedings of the Royal Society of London Series B: Biological Sciences, 279(1742), pp. 3527-3534. (doi:10.1098/rspb.2012.0743)

Gwinner, E., Helm, B., Koolhaas, A., Battley, P., Schwabl, I., Dekinga, A. and Piersma, T. (2012) Avian migration: temporal multitasking and a case study of melatonin cycles in waders. In: Kalsbeek, A., Merrow, M., Roenneberg, T. and Foster, R.G. (eds.) The Neurobiology of Circadian Timing. Series: Progress in Brain Research, 199. Elsevier, pp. 457-479. ISBN 9780444594273 (doi:10.1016/B978-0-444-59427-3.00026-5)

2010

Helm, B. and Visser, M.E. (2010) Heritable circadian period length in a wild bird population. Proceedings of the Royal Society of London Series B: Biological Sciences, 277(1698), pp. 3335-3342. (doi:10.1098/rspb.2010.0871)

Visser, M. E., Caro, S. P., van Oers, K., Schaper, S. V. and Helm, B. (2010) Phenology, seasonal timing and circannual rhythms: towards a unified framework. Philosophical Transactions of the Royal Society B: Biological Sciences, 365(1555), pp. 3113-3127. (doi:10.1098/rstb.2010.0111)

Tieleman, B.I., Croese, E., Helm, B. and Versteegh, M.A. (2010) Repeatability and individual correlates of microbicidal capacity of bird blood. Comparative Biochemistry and Physiology. Part A: Molecular and Integrative Physiology, 156(4), pp. 537-540. (doi:10.1016/j.cbpa.2010.04.011)

Baldwin, M.W., Winkler, H., Organ, C.L. and Helm, B. (2010) Wing pointedness associated with migratory distance in common-garden and comparative studies of stonechats (Saxicola torquata). Journal of Evolutionary Biology, 23(5), pp. 1050-1063. (doi:10.1111/j.1420-9101.2010.01975.x)

2009

Helm, B. (2009) Geographically distinct reproductive schedules in a changing world: costly implications in captive Stonechats. Integrative and Comparative Biology, 49(5), pp. 563-579. (doi:10.1093/icb/icp037)

Tieleman, B.I., Versteegh, M.A., Helm, B. and Dingemanse, N.J. (2009) Quantitative genetics parameters show partial independent evolutionary potential for body mass and metabolism in stonechats from different populations. Journal of Zoology, 279(2), pp. 129-136. (doi:10.1111/j.1469-7998.2009.00597.x)

Mukhin, A., Grinkevich, V. and Helm, B. (2009) Under cover of darkness: nocturnal life of diurnal birds. Journal of Biological Rhythms, 24(3), pp. 225-231. (doi:10.1177/0748730409335349)

Silverin, B., Gwinner, E., Van't Hof, T.J., Schwabl, I., Fusani, L., Hau, M. and Helm, B. (2009) Persistent diel melatonin rhythmicity during the Arctic summer in free-living willow warblers. Hormones and Behavior, 56(1), pp. 163-168. (doi:10.1016/j.yhbeh.2009.04.002)

Tieleman, B.I., Versteegh, M.A., Fries, A., Helm, B., Dingemanse, N.J., Gibbs, H.L. and Williams, J.B. (2009) Genetic modulation of energy metabolism in birds through mitochondrial function. Proceedings of the Royal Society of London Series B: Biological Sciences, 276(1662), pp. 1685-1693. (doi:10.1098/rspb.2008.1946)

Helm, B., Schwabl, I. and Gwinner, E. (2009) Circannual basis of geographically distinct bird schedules. Journal of Experimental Biology, 212(9), pp. 1259-1269. (doi:10.1242/jeb.025411)

Kalthoff, D., Breithaupt, A., Helm, B., Teifke, J.P. and Beer, M. (2009) Migratory status is not related to the susceptibility to HPAIV H5N1 in an insectivorous passerine species. PLoS ONE, 4(7), e6170. (doi:10.1371/journal.pone.0006170)

2008

Flinkrs, H., Helm, B. and Rothery, P. (2008) Plasticity of moult and breeding schedules in migratory European Stonechats Saxicola rubicola. IBIS, 150(4), pp. 687-697. (doi:10.1111/j.1474-919X.2008.00833.x)

Illera, J.C., Richardson, D.S., Helm, B., Atienza, J.C. and Emerson, B.C. (2008) Phylogenetic relationships, biogeography and speciation in the avian genus Saxicola. Molecular Phylogenetics and Evolution, 48(3), pp. 1145-1154. (doi:10.1016/j.ympev.2008.05.016)

Versteegh, M.A., Helm, B., Dingemanse, N.J. and Tieleman, B.I. (2008) 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. Part A: Molecular and Integrative Physiology, 150(4), pp. 452-457. (doi:10.1016/j.cbpa.2008.05.006)

Woog, F., Wink, M., Rastegar-Pouyani, E., Gonzalez, J. and Helm, B. (2008) Distinct taxonomic position of the Madagascar stonechat (Saxicola torquatus sibilla) revealed by nucleotide sequences of mitochondrial DNA. Journal of Ornithology, 149(3), pp. 423-430. (doi:10.1007/s10336-008-0290-1)

Wikelski, M., Martin, L.B., Scheuerlein, A., Robinson, M.T., Robinson, N.D., Helm, B., Hau, M. and Gwinner, E. (2008) Avian circannual clocks: adaptive significance and possible involvement of energy turnover in their proximate control. Philosophical Transactions of the Royal Society B: Biological Sciences, 363(1490), pp. 411-423. (doi:10.1098/rstb.2007.2147)

2007

Kumar, V., Rani, S., Malik, S., Trivedi, A.K., Schwabl, I., Helm, B. and Gwinner, E. (2007) Daytime light intensity affects seasonal timing via changes in the nocturnal melatonin levels. Naturwissenschaften, 94(8), pp. 693-696. (doi:10.1007/s00114-007-0243-1)

Hedenström, A., Barta, Z., Helm, B., Houston, A.I., McNamara, J.M. and Jonzén, N. (2007) Migration speed and scheduling of annual events by migrating birds in relation to climate change. Climate Research, 35(1-2), pp. 79-91. (doi:10.3354/cr00715)

2006

Helm, B. (2006) Zugunruhe of migratory and non-migratory birds in a circannual context. Journal of Avian Biology, 37(6), pp. 533-540. (doi:10.1111/j.2006.0908-8857.03947.x)

Helm, B., Piersma, T. and van der Jeugd, H. (2006) Sociable schedules: interplay between avian seasonal and social behaviour. Animal Behaviour, 72(2), pp. 245-262. (doi:10.1016/j.anbehav.2005.12.007)

Noordwijk, A.J. et al. (2006) A framework for the study of genetic variation in migratory behaviour. Journal of Ornithology, 147(2), pp. 221-233. (doi:10.1007/s10336-005-0047-z)

Helm, B., Fiedler, W. and Callion, J. (2006) Movements of European stonechats Saxicola torquata according to ringing recoveries. Ardea, 94(1), pp. 33-44.

Helm, B. and Gwinner, E. (2006) Migratory restlessness in an equatorial nonmigratory bird. PLoS Biology, 4(4), e110. (doi:10.1371/journal.pbio.0040110)

2005

Helm, B. and Gwinner, E. (2005) Carry-over effects of day length during spring migration. Journal of Ornithology, 146(4), pp. 348-354. (doi:10.1007/s10336-005-0009-5)

Helm, B., Gwinner, E. and Trost, L. (2005) Flexible seasonal timing and migratory behavior: results from stonechat breeding programs. Annals of the New York Academy of Sciences, 1046, pp. 216-227. (doi:10.1196/annals.1343.019)

2003

Rappole, J.H., Helm, B. and Ramos, M.A. (2003) An integrative framework for understanding the origin and evolution of avian migration. Journal of Avian Biology, 34(1), pp. 124-128. (doi:10.1034/j.1600-048X.2003.03170.x)

2002

Konig, S., Gwinner, E. and Helm, B. (2002) 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.

2000

Helm, B. and Albrecht, H. (2000) Human handedness causes directional asymmetry in avian wing length measurements. Animal Behaviour, 60(6), pp. 899-902. (doi:10.1006/anbe.2000.1534)

1999

Helm, B. and Gwinner, E. (1999) Timing of postjuvenal molt in African (Saxicola torquata axillaris) and European (Saxicola torquata rubicola) stonechats: effects of genetic and environmental factors. Auk, 116(3), pp. 589-603. (doi:10.2307/4089321)

This list was generated on Mon Sep 25 08:02:53 2017 BST.
Number of items: 63.

Articles

Helm, B., Visser, M.E., Schwartz, W., Kronfeld-Schor, N., Gerkema, M., Piersma, T. and Bloch, G. (2017) Two sides of a coin: ecological and chronobiological perspectives of timing in the wild. Philosophical Transactions of the Royal Society B: Biological Sciences, (Accepted for Publication)

Schwartz, W., Helm, B. and Gerkema, M. (2017) Wild clocks. Philosophical Transactions of the Royal Society B: Biological Sciences, (Accepted for Publication)

Van Doren, B. M., Campagna, L., Helm, B., Illera, J. C., Lovette, I. J. and Liedvogel, M. (2017) Correlated patterns of genetic diversity and differentiation across an avian family. Molecular Ecology, 26(15), pp. 3982-3997. (doi:10.1111/mec.14083) (PMID:28256062)

Åkesson, S., Ilieva, M., Karagicheva, J., Rakhimberdiev, E., Tomotani, B. and Helm, B. (2017) Timing avian long-distance migration: from internal clock mechanisms to global flights. Philosophical Transactions of the Royal Society B: Biological Sciences, (Accepted for Publication)

Pollock, C., Capilla-Lasheras, P., McGill, R. A.R. , Helm, B. and Dominoni, D. M. (2017) Integrated behavioural and stable isotope data reveal altered diet linked to low breeding success in urban-dwelling blue tits (Cyanistes caeruleus). Scientific Reports, 7, 5014. (PMID:28694437)

Capilla-Lasheras, P., Dominoni, D. M., Babayan, S. A., O'Shaughnessy, P. J., Mladenova, M., Woodford, L., Pollock, C. J., Barr, T., Baldini, F. and Helm, B. (2017) Elevated immune gene expression is associated with poor reproductive success of urban blue tits. Frontiers in Ecology and Evolution, 5, 64. (doi:10.3389/fevo.2017.00064)

Apfelbeck, B. A., Helm, B., Illera, J. C., Mortega, K. G., Smiddy, P. and Evans, N. P. (2017) Baseline and stress-induced levels of corticosterone in male and female Afrotropical and European temperate stonechats during breeding. BMC Evolutionary Biology, 17, 114. (doi:10.1186/s12862-017-0960-9) (PMID:28532466) (PMCID:PMC5441054)

Apfelbeck, B., Mortega, K. G., Flinks, H., Illera, J. C. and Helm, B. (2017) Testosterone, territorial response, and song in seasonally breeding tropical and temperate Stonechats. BMC Evolutionary Biology, 17(1), 101. (doi:10.1186/s12862-017-0944-9) (PMID:28412929) (PMCID:PMC5392926)

Van Doren, B. M., Liedvogel, M. and Helm, B. (2017) Programmed and flexible: long-term Zugunruhe data highlight the many axes of variation in avian migratory behaviour. Journal of Avian Biology, 48(1), pp. 155-172. (doi:10.1111/jav.01348)

Bulla, M. et al. (2016) Unexpected diversity in socially synchronized rhythms of shorebirds. Nature, 540(7631), pp. 109-113. (doi:10.1038/nature20563) (PMID:27880762)

Bakker, K. M., Martinez-Bakker, M. E., Helm, B. and Stevenson, T. J. (2016) Digital epidemiology reveals global childhood disease seasonality and the effects of immunization. Proceedings of the National Academy of Sciences of the United States of America, 113(24), pp. 6689-6694. (doi:10.1073/pnas.1523941113) (PMID:27247405) (PMCID:PMC4914188)

Malzer, I. and Helm, B. (2015) The seasonal dynamics of artificial nest predation rates along edges in a mosaic managed reedbed. PLoS ONE, 10(10), e0140247. (doi:10.1371/journal.pone.0140247) (PMID:26448338)

Martinez-Bakker, M. and Helm, B. (2015) The influence of biological rhythms on host–parasite interactions. Trends in Ecology and Evolution, 30(6), pp. 314-326. (doi:10.1016/j.tree.2015.03.012) (PMID:25907430)

Nord, A., Lehmann, M., MacLeod, R., McCafferty, D. J., Nager, R. G., Nilsson, J.-Å. and Helm, B. (2015) Evaluation of two methods for minimally invasive peripheral body temperature measurement in birds. Journal of Avian Biology, 47(3), pp. 417-427. (doi:10.1111/jav.00845)

Stevenson, T.J. et al. (2015) Disrupted seasonal biology impacts health, food security and ecosystems. Proceedings of the Royal Society of London Series B: Biological Sciences, 282, 20151453. (doi:10.1098/rspb.2015.1453) (PMID:26468242) (PMCID:PMC4633868)

Mortega, K. G., Flinks, H. and Helm, B. (2014) Behavioural response of a migratory songbird to geographic variation in song and morphology. Frontiers in Zoology, 11, p. 85. (doi:10.1186/s12983-014-0085-6)

Versteegh, M.A., Helm, B., Kleynhans, E., Gwinner, E. and Tieleman, I. (2014) Genetic and phenotypically flexible components of seasonal variation in immune function. Journal of Experimental Biology, 217, pp. 1510-1518. (doi:10.1242/jeb.097105)

Bloch, G., Barnes, B.M., Gerkema, M.P. and Helm, B. (2013) Animal activity around the clock with no overt circadian rhythms: patterns, mechanisms and adaptive value. Proceedings of the Royal Society of London Series B: Biological Sciences, 280(1765), p. 20130019. (doi:10.1098/rspb.2013.0019)

Helm, B., Ben Shlomo, R., Sheriff, M. J., Hut, R. A., Foster, R., Barnes, B. M. and Dominoni, D. (2013) Annual rhythms that underlie phenology: biological time-keeping meets environmental change. Proceedings of the Royal Society of London Series B: Biological Sciences, 280(1765), p. 20130016. (doi:10.1098/rspb.2013.0016)

Bloch, G., Barnes, B.M., Gerkema, M.P. and Helm, B. (2013) Animal activity around-the-clock with no overt circadian rhythms: patterns, mechanisms, and adaptive value. Proceedings of the Royal Society of London Series B: Biological Sciences, 280(1765),

Dominoni, D.M., Helm, B., Lehmann, M., Dowse, H.B. and Partecke, J. (2013) Clocks for the city: circadian differences between forest and city songbirds. Proceedings of the Royal Society of London Series B: Biological Sciences, 280(1763), (doi:10.1098/rspb.2013.0593)

Holland, R.A. and Helm, B. (2013) A strong magnetic pulse affects the precision of departure direction of naturally migrating adult but not juvenile birds. Journal of the Royal Society: Interface, 10(81), Art. 20121047. (doi:10.1098/rsif.2012.1047)

Dominoni, D.M., Goymann, W., Helm, B. and Partecke, J. (2013) 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), (doi:10.1186/1742-9994-10-60)

Steiger, S.S., Valcu, M., Spoelstra, K., Helm, B., Wikelski, M. and Kempenaers, B. (2013) When the sun never sets: diverse activity rhythms under continuous daylight in free-living arctic-breeding birds. Proceedings of the Royal Society of London Series B: Biological Sciences, 280(1764), (doi:10.1098/rspb.2013.1016)

Versteegh, M.A., Helm, B., Gwinner, E. and Tieleman, B.I. (2012) Annual cycles of metabolic rate are genetically determined but can be shifted by phenotypic flexibility. Journal of Experimental Biology, 215(19), pp. 3459-3466. (doi:10.1242/jeb.073445)

Lehmann, M., Spoelstra, K., Visser, M.E. and Helm, B. (2012) Effects of temperature on circadian clock and chronotype: an experimental study on a passerine bird. Chronobiology International, 29(8), pp. 1062-1071. (doi:10.3109/07420528.2012.707159)

Goymann, W., Helm, B., Jensen, W., Schwabl, I. and Moore, I.T. (2012) A tropical bird can use the equatorial change in sunrise and sunset times to synchronize its circannual clock. Proceedings of the Royal Society of London Series B: Biological Sciences, 279(1742), pp. 3527-3534. (doi:10.1098/rspb.2012.0743)

Ramenofsky, M., Cornelius, J.M. and Helm, B. (2012) Physiological and behavioral responses of migrants to environmental cues. Journal of Ornithology, 153(S1), pp. 181-191. (doi:10.1007/s10336-012-0817-3)

Goymann, W., Helm, B., Jensen, W., Schwabl, I. and Moore, I.T. (2012) A tropical bird can use the equatorial change in sunrise and sunset times to synchronize its circannual clock. Proceedings of the Royal Society of London Series B: Biological Sciences, 279(1742), pp. 3527-3534. (doi:10.1098/rspb.2012.0743)

Helm, B. and Visser, M.E. (2010) Heritable circadian period length in a wild bird population. Proceedings of the Royal Society of London Series B: Biological Sciences, 277(1698), pp. 3335-3342. (doi:10.1098/rspb.2010.0871)

Visser, M. E., Caro, S. P., van Oers, K., Schaper, S. V. and Helm, B. (2010) Phenology, seasonal timing and circannual rhythms: towards a unified framework. Philosophical Transactions of the Royal Society B: Biological Sciences, 365(1555), pp. 3113-3127. (doi:10.1098/rstb.2010.0111)

Tieleman, B.I., Croese, E., Helm, B. and Versteegh, M.A. (2010) Repeatability and individual correlates of microbicidal capacity of bird blood. Comparative Biochemistry and Physiology. Part A: Molecular and Integrative Physiology, 156(4), pp. 537-540. (doi:10.1016/j.cbpa.2010.04.011)

Baldwin, M.W., Winkler, H., Organ, C.L. and Helm, B. (2010) Wing pointedness associated with migratory distance in common-garden and comparative studies of stonechats (Saxicola torquata). Journal of Evolutionary Biology, 23(5), pp. 1050-1063. (doi:10.1111/j.1420-9101.2010.01975.x)

Helm, B. (2009) Geographically distinct reproductive schedules in a changing world: costly implications in captive Stonechats. Integrative and Comparative Biology, 49(5), pp. 563-579. (doi:10.1093/icb/icp037)

Tieleman, B.I., Versteegh, M.A., Helm, B. and Dingemanse, N.J. (2009) Quantitative genetics parameters show partial independent evolutionary potential for body mass and metabolism in stonechats from different populations. Journal of Zoology, 279(2), pp. 129-136. (doi:10.1111/j.1469-7998.2009.00597.x)

Mukhin, A., Grinkevich, V. and Helm, B. (2009) Under cover of darkness: nocturnal life of diurnal birds. Journal of Biological Rhythms, 24(3), pp. 225-231. (doi:10.1177/0748730409335349)

Silverin, B., Gwinner, E., Van't Hof, T.J., Schwabl, I., Fusani, L., Hau, M. and Helm, B. (2009) Persistent diel melatonin rhythmicity during the Arctic summer in free-living willow warblers. Hormones and Behavior, 56(1), pp. 163-168. (doi:10.1016/j.yhbeh.2009.04.002)

Tieleman, B.I., Versteegh, M.A., Fries, A., Helm, B., Dingemanse, N.J., Gibbs, H.L. and Williams, J.B. (2009) Genetic modulation of energy metabolism in birds through mitochondrial function. Proceedings of the Royal Society of London Series B: Biological Sciences, 276(1662), pp. 1685-1693. (doi:10.1098/rspb.2008.1946)

Helm, B., Schwabl, I. and Gwinner, E. (2009) Circannual basis of geographically distinct bird schedules. Journal of Experimental Biology, 212(9), pp. 1259-1269. (doi:10.1242/jeb.025411)

Kalthoff, D., Breithaupt, A., Helm, B., Teifke, J.P. and Beer, M. (2009) Migratory status is not related to the susceptibility to HPAIV H5N1 in an insectivorous passerine species. PLoS ONE, 4(7), e6170. (doi:10.1371/journal.pone.0006170)

Flinkrs, H., Helm, B. and Rothery, P. (2008) Plasticity of moult and breeding schedules in migratory European Stonechats Saxicola rubicola. IBIS, 150(4), pp. 687-697. (doi:10.1111/j.1474-919X.2008.00833.x)

Illera, J.C., Richardson, D.S., Helm, B., Atienza, J.C. and Emerson, B.C. (2008) Phylogenetic relationships, biogeography and speciation in the avian genus Saxicola. Molecular Phylogenetics and Evolution, 48(3), pp. 1145-1154. (doi:10.1016/j.ympev.2008.05.016)

Versteegh, M.A., Helm, B., Dingemanse, N.J. and Tieleman, B.I. (2008) 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. Part A: Molecular and Integrative Physiology, 150(4), pp. 452-457. (doi:10.1016/j.cbpa.2008.05.006)

Woog, F., Wink, M., Rastegar-Pouyani, E., Gonzalez, J. and Helm, B. (2008) Distinct taxonomic position of the Madagascar stonechat (Saxicola torquatus sibilla) revealed by nucleotide sequences of mitochondrial DNA. Journal of Ornithology, 149(3), pp. 423-430. (doi:10.1007/s10336-008-0290-1)

Wikelski, M., Martin, L.B., Scheuerlein, A., Robinson, M.T., Robinson, N.D., Helm, B., Hau, M. and Gwinner, E. (2008) Avian circannual clocks: adaptive significance and possible involvement of energy turnover in their proximate control. Philosophical Transactions of the Royal Society B: Biological Sciences, 363(1490), pp. 411-423. (doi:10.1098/rstb.2007.2147)

Kumar, V., Rani, S., Malik, S., Trivedi, A.K., Schwabl, I., Helm, B. and Gwinner, E. (2007) Daytime light intensity affects seasonal timing via changes in the nocturnal melatonin levels. Naturwissenschaften, 94(8), pp. 693-696. (doi:10.1007/s00114-007-0243-1)

Hedenström, A., Barta, Z., Helm, B., Houston, A.I., McNamara, J.M. and Jonzén, N. (2007) Migration speed and scheduling of annual events by migrating birds in relation to climate change. Climate Research, 35(1-2), pp. 79-91. (doi:10.3354/cr00715)

Helm, B. (2006) Zugunruhe of migratory and non-migratory birds in a circannual context. Journal of Avian Biology, 37(6), pp. 533-540. (doi:10.1111/j.2006.0908-8857.03947.x)

Helm, B., Piersma, T. and van der Jeugd, H. (2006) Sociable schedules: interplay between avian seasonal and social behaviour. Animal Behaviour, 72(2), pp. 245-262. (doi:10.1016/j.anbehav.2005.12.007)

Noordwijk, A.J. et al. (2006) A framework for the study of genetic variation in migratory behaviour. Journal of Ornithology, 147(2), pp. 221-233. (doi:10.1007/s10336-005-0047-z)

Helm, B., Fiedler, W. and Callion, J. (2006) Movements of European stonechats Saxicola torquata according to ringing recoveries. Ardea, 94(1), pp. 33-44.

Helm, B. and Gwinner, E. (2006) Migratory restlessness in an equatorial nonmigratory bird. PLoS Biology, 4(4), e110. (doi:10.1371/journal.pbio.0040110)

Helm, B. and Gwinner, E. (2005) Carry-over effects of day length during spring migration. Journal of Ornithology, 146(4), pp. 348-354. (doi:10.1007/s10336-005-0009-5)

Helm, B., Gwinner, E. and Trost, L. (2005) Flexible seasonal timing and migratory behavior: results from stonechat breeding programs. Annals of the New York Academy of Sciences, 1046, pp. 216-227. (doi:10.1196/annals.1343.019)

Rappole, J.H., Helm, B. and Ramos, M.A. (2003) An integrative framework for understanding the origin and evolution of avian migration. Journal of Avian Biology, 34(1), pp. 124-128. (doi:10.1034/j.1600-048X.2003.03170.x)

Konig, S., Gwinner, E. and Helm, B. (2002) 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.

Helm, B. and Albrecht, H. (2000) Human handedness causes directional asymmetry in avian wing length measurements. Animal Behaviour, 60(6), pp. 899-902. (doi:10.1006/anbe.2000.1534)

Helm, B. and Gwinner, E. (1999) Timing of postjuvenal molt in African (Saxicola torquata axillaris) and European (Saxicola torquata rubicola) stonechats: effects of genetic and environmental factors. Auk, 116(3), pp. 589-603. (doi:10.2307/4089321)

Book Sections

Helm, B. and Lincoln, G. A. (2017) Circannual rhythms anticipate the Earth’s annual periodicity. In: Kumar, V. (ed.) Biological Timekeeping: Clocks, Rhythms and Behaviour. Springer India, pp. 545-569. ISBN 9788132236863 (doi:10.1007/978-81-322-3688-7_26)

Helm, B. and Shavit, A. (2017) Dissecting and reconstructing time and space for replicable biological research. In: Shavit, A. and Ellison, A. M. (eds.) Stepping in the Same River Twice: Replication in Biological Research. Yale University Press: New Haven, pp. 233-249. ISBN 9780300209549

Goymann, W. and Helm, B. (2015) Seasonality of life-cycles in tropical birds: circannual rhythms and Zeitgeber. In: Numata, H. and Helm, B. (eds.) Annual, Lunar and Tidal Clocks: Patterns and Mechanisms of Nature’s Enigmatic Rhythms. Springer Japan: Tokyo. ISBN 9784431552604

Helm, B. and Stevenson, T. (2015) Circannual rhythms: history, present challenges, future directions. In: Numata, H. and Helm, B. (eds.) Annual, Lunar and Tidal Clocks: Patterns and Mechanisms of Nature’s Enigmatic Rhythms. Springer Japan: Tokyo. ISBN 9784431552604

Gwinner, E., Helm, B., Koolhaas, A., Battley, P., Schwabl, I., Dekinga, A. and Piersma, T. (2012) Avian migration: temporal multitasking and a case study of melatonin cycles in waders. In: Kalsbeek, A., Merrow, M., Roenneberg, T. and Foster, R.G. (eds.) The Neurobiology of Circadian Timing. Series: Progress in Brain Research, 199. Elsevier, pp. 457-479. ISBN 9780444594273 (doi:10.1016/B978-0-444-59427-3.00026-5)

This list was generated on Mon Sep 25 08:02:53 2017 BST.