Honeybee navigation: critically examining the role of the polarization compass

Evangelista, C., Kraft, P., Dacke, M., Labhart, T. and Srinivasan, M. V. (2014) Honeybee navigation: critically examining the role of the polarization compass. Philosophical Transactions of the Royal Society B: Biological Sciences, 369 1636: 20130037.1-20130037.12. doi:10.1098/rstb.2013.0037


Author Evangelista, C.
Kraft, P.
Dacke, M.
Labhart, T.
Srinivasan, M. V.
Title Honeybee navigation: critically examining the role of the polarization compass
Journal name Philosophical Transactions of the Royal Society B: Biological Sciences   Check publisher's open access policy
ISSN 0962-8436
1471-2970
Publication date 2014-02-19
Sub-type Article (original research)
DOI 10.1098/rstb.2013.0037
Volume 369
Issue 1636
Start page 20130037.1
End page 20130037.12
Total pages 12
Place of publication London, United Kingdom
Publisher The Royal Society Publishing
Collection year 2015
Language eng
Subject 1100 Agricultural and Biological Sciences
1300 Biochemistry, Genetics and Molecular Biology
Abstract Although it is widely accepted that honeybees use the polarized-light pattern of the sky as a compass for navigation, there is little direct evidence that this information is actually sensed during flight. Here, we ask whether flying bees can obtain compass cues derived purely from polarized light, and communicate this information to their nest-mates through the 'waggle dance'. Bees, from an observation hive with vertically oriented honeycombs, were trained to fly to a food source at the end of a tunnel, which provided overhead illumination that was polarized either parallel to the axis of the tunnel, or perpendicular to it. When the illumination was transversely polarized, bees danced in a predominantly vertical direction with waggles occurring equally frequently in the upward or the downward direction. They were thus using the polarized-light information to signal the two possible directions in which they could have flown in natural outdoor flight: either directly towards the sun, or directly away from it. When the illumination was axially polarized, the bees danced in a predominantly horizontal direction with waggles directed either to the left or the right, indicating that they could have flown in an azimuthal direction that was 90° to the right or to the left of the sun, respectively. When the first half of the tunnel provided axial illumination and the second half transverse illumination, bees danced along all of the four principal diagonal directions, which represent four equally likely locations of the food source based on the polarized-light information that they had acquired during their journey. We conclude that flying bees are capable of obtaining and signalling compass information that is derived purely from polarized light. Furthermore, they deal with the directional ambiguity that is inherent in polarized light by signalling all of the possible locations of the food source in their dances, thus maximizing the chances of recruitment to it.
Keyword Compass
Honeybee
Navigation
Polarization vision
Waggle dance
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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