Hostname: page-component-76d6cb85b7-xh428 Total loading time: 0 Render date: 2026-07-23T13:53:50.620Z Has data issue: false hasContentIssue false

Range perception through apparent image speed in freely flying honeybees

Published online by Cambridge University Press:  02 June 2009

M. V. Srinivasan
Affiliation:
Centre for Visual Sciences, Research School of Biological Sciences, Australian National University, Canberra, Australia
M. Lehrer
Affiliation:
Abtl. Neurobiologie, Zoologisches Institut der Universitaet Zuerich, Winterthurerstrasse - 190, CH-8057 Zurich, Switzerland
W. H. Kirchner
Affiliation:
Zoologisches Institut der Universitaet, Lehrstuhl fuer Tierphysiologie, D-8700 Wuerzburg, Germany
S. W. Zhang
Affiliation:
lnstitute of Biophysics, Academia Sinica, Beijing, Peoples Republic of China

Abstract

When negotiating a narrow gap, honeybees tend to fly through the middle of the gap, balancing the distances to the boundary on either side. To investigate the basis of this “centering response,” bees were trained to fly through a tunnel on their way to a feeding site and back, while their flight trajectories were filmed from above. The wall on either side carried a visual pattern. When the patterns were stationary vertical gratings, bees tended to fly through the middle of the tunnel, i.e. along its longitudinal axis. However, when one of the gratings was in motion, bees flying in the same direction as the moving grating tended to fly closer to while bees flying in the opposite direction tended to fly closer to the stationary grating. This demonstrates, directly and unequivocally, that flying bees estimate the distances of surfaces in terms of the apparent motion of their images. A series of further experiments revealed that the distance to the gratings is gauged in terms of their apparent angular speeds, and that the visual system of the bee is capable of measuring angular speed largely independently of the spatial period, intensity profile, or contrast of the grating. Thus, the motion-sensitive mechanisms mediating range perception appear to be qualitatively different from those that mediate the well-known optomotor response in insects, or those involved in motion detection and ocular tracking in man.

Information

Type
Research Articles
Copyright
Copyright © Cambridge University Press 1991

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable