Hostname: page-component-8448b6f56d-dnltx Total loading time: 0 Render date: 2024-04-19T22:49:12.925Z Has data issue: false hasContentIssue false

Visual tracking of moving targets by freely flying honeybees

Published online by Cambridge University Press:  02 June 2009

S. W. Zhang
Affiliation:
Institute of Biophysics, Academia Sinica, Beijing, China
Wang Xiang
Affiliation:
Institute of Biophysics, Academia Sinica, Beijing, China
Liu Zili
Affiliation:
Department of Cognitive Science, Brown University, Providence
M. V. Srinivasan
Affiliation:
Centre for Visual Sciences, Australian National University, Canberra, Australia

Abstract

The ability of freely-flying honeybees to track moving targets was examined by training to collect a reward on a target, and then videotaping their approach to the target while it was in motion. Training experiments were carried out with several groups of bees, using various colors for the target and the background. Computer-aided frame-by-frame analysis of video recordings was used to plot the instantaneous positions of the target, as well as the position and orientation of the approaching bee in three dimensions. The results show that bees are perfectly capable of tracking moving targets and landing on them. When the distance of the target is greater than 15 cm, approaching bees correct for angular deviations of the target from the midline, both in the horizontal and in the vertical plane. In either plane, the input vaariables that are important to the tracking system seem to be (1) the angular bearing of the target with respect and (2) the angular velocity of the target with respect to the eye. The tracking control system tends to orient the bee such that the target is located frontally, at an angle of Ca. 35 deg below the bee's long axis. The chromatic properties of tracking behavior were investigated by employing combinations of colors for the target and background such that the boundary between the target and the background presented a contrast that was visible either only to the green-sensitive receptors of the bee's eye, or only to theblue-sensitive receptors. The results of these experiments suggest that, in controlling tracking, the measurement of the angular velocity of the target is derived almost exclusively from signals from the green-sensitive receptors, as is the case with previously studied movement-sensitive behavior. However, the measurement of the angular bearing of the target is derived from the blue-sensitive receptors as well as the green-sensitive noes. When the target is closer than Ca. 15 cm, approaching bees use translational maneuvers, in addition to rotational ones, to track the moving target. Translational target tracking appears to be driven primarily by signals from the green-sensitive receptors.

Type
Research Articles
Copyright
Copyright © Cambridge University Press 1990

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.)

References

Buelthoff, H., Poggio, T. & Wehrhahn, C. (1980). 3-D analysis of the flight trajectories of flies. Zeitschrift für Naturforschung 35c, 811815.CrossRefGoogle Scholar
Collett, T.S. & Land, M.F. (1975). Visual control of flight behaviour in the hoverfly (Syritta pipiens L.). Journal of Comparative Physiology 99, 166.CrossRefGoogle Scholar
Heisenberg, M. & Buchner, E. (1977). The role of retinula cell types in visual behaviour of Drosophila melanogaster. Journal of Comparative Physiology 117, 127162.CrossRefGoogle Scholar
Kaiser, W. (1975). The relationship between movement detection and colour vision in insects. In The Compound Eye and Vision of Insects, ed. Horridge, G.A., pp. 359377. Oxford: Clarendon Press.Google Scholar
Land, M.F. & Collett, T.S. (1974). Chasing behaviour of houseflies (Fannia canicularis). Journal of Comparative Physiology 89, 331357.CrossRefGoogle Scholar
Lehrer, M., Wehner, R. & Srinivasan, M.V. (1985). Visual scanning behaviour in honeybees. Journal of Comparative Physiology A 157, 405415.CrossRefGoogle ScholarPubMed
Livingstone, M.S. & Hubel, D.H. (1987). Psychophysical evidence for separate channels for the perception of form, colour, movement, and depth. Journal of Neuroscience 7, 34163468.CrossRefGoogle ScholarPubMed
Srinivasan, M.V. & Lehrer, M. (1984). Temporal acuity of honeybee vision: behavioural studies using moving stimuli. Journal of Cornparative Physiology A 155, 297312.Google Scholar
Srinivasan, M.V. (1985). Shouldn't directional movement detection necessarily be “colour-blind”? Vision Research 25, 9971000.CrossRefGoogle ScholarPubMed
Srinivasan, M.V. & Lehrer, M. (1988). Spatial acuity of honeybee vision and its spectral properties. Journal of Comparative Physiology A 162, 159172.CrossRefGoogle Scholar
Van, Praagh J.P., Ribi, W., Wehrhahn, C. & Wittmann, D. (1980). Drone bees fixate the queen with the dorsal front part of their compound eyes. Journal of Comparative Physiology 136, 263266.Google Scholar
Wagner, H. (1986). Flight performance and visual control of flight of the free-flying housefly (Musca domestica L.). Philosophical Transactions of the Royal Society B (London) 312, 527595.Google Scholar
Wehrhahn, C., Poggio, T. & Buelthoff, H. (1982). Tracking and chasing in houseflies (Musca). An analysis of 3-D flight trajectories. Biological Cybernetics 45, 123130.CrossRefGoogle Scholar