Journal of Comparative Physiology A

, Volume 197, Issue 12, pp 1135–1136 | Cite as

Authors’ response

  • J. Hert
  • L. JelinekEmail author
  • L. Pekarek
  • A. Pavlicek
Original Paper
We have carefully read the text of the comments of Begall et al. ( 2011) on our publication (Hert et al. 2011), and meticulously considered the objections concerning our paper as well as the results of the re-evaluation, re-assessment and re-interpretation of our data. In the following, we present our response:
  1. (a)

    The vector data: for sampling the vector data (cows with recognized head position), only pictures with very good resolution were used. Shadows were never used in our analysis. Regarding the claim that the north-west bias of the head sample is caused by an inadequate sampling, it can be easily checked that the axial statistics made from these vector data gives Z = 1.1. Attaching them to the rest of axial data could not influence their directional preference. So, the reasoning given in Begall et al. (2011) is un-tenable and our conclusions resulting from the vector sample remain valid.

  2. (b)

    Re-analysis of the “green” herds: denoting the results of our paper mostly as noise...


Magnetoreception Magnetic alignment Cattle in magnetic field Magnetic sense Statistical evaluation 


  1. Begall S, Burda H, Červený J, Gerter O, Neef-Weisse J, Němec P (2011) Further support for the alignment of cattle along magnetic field lines: reply to Hert et al. J Comp Physiol A doi: 10.1007/s00359-011-0674-1
  2. Hert J, Jelinek L, Pekarek P, Pavlicek A (2011) No alignment of cattle along geomagnetic field lines found. J Comp Physiol A 197:677–682CrossRefGoogle Scholar

Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  1. 1.Department of Anatomy, Faculty of MedicineCharles UniversityPlzenCzech Republic
  2. 2.Department of Electromagnetic Field, Faculty of Electrical EngineeringCzech Technical University in PraguePragueCzech Republic
  3. 3.National Reference Laboratory for Electromagnetic FieldNational Institute of Public HealthPragueCzech Republic
  4. 4.Department of System Analysis, Faculty of Informatics and StatisticsUniversity of EconomicsPragueCzech Republic

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