AI Article Synopsis
- Honeybees gauge the distance they fly by measuring how much the visual image of their environment shifts in their eyes.
- Researchers found that when honeybees fly through three-dimensional paths, their distance measurement relies solely on the total distance traveled, not the path's shape.
- This contrasts with desert ants, which measure distance based on horizontal movement, suggesting that honeybees have a unique way of navigating to forage for food regardless of the terrain's complexity.
Article Abstract
Honeybees determine distance flown by gauging the extent to which the image of the environment moves in the eye as they fly towards their goal. Here we investigate how this visual odometer operates when a bee flies along paths that include a vertical component. By training bees to fly to a feeder along tunnels of various three-dimensional configurations, we find that the odometric signal depends only upon the total distance travelled along the path and is independent of its three-dimensional configuration. Hence, unlike walking desert ants, which measure the distance travelled in the horizontal plane whilst traversing undulating terrain, flying bees simply integrate the image motion that is experienced on the way to the goal, irrespective of the direction in which the image moves across the eyes. These findings raise important questions about how honeybee recruits navigate reliably to find the food sources that are advertised by scouts.
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| http://dx.doi.org/10.1242/jeb.002089 | DOI Listing |
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