Color and shape discrimination in the stingless bee scaptotrigona mexicana Guérin (Hymenoptera, Apidae)
To increase our understanding in bee vision ecology, we investigated the color and shape discrimination performance of the stingless bee Scaptotrigona mexicana Guérin. Our main goal was to describe the choice behavior of experienced foragers over time, trying to understand to what extent color and shape stimuli (separately tested) aid them to choose the rewarding option, in the presence of distracting, unrewarding stimuli. Single foragers were trained to collect sucrose solution from a target plate. Afterwards, one distracting, unrewarding plate was placed besides the target plate and eight choices were recorded. Our results showed that both color and shape stimuli assisted efficiently the trained foragers in locating the target plate. However, foragers chose significantly more often the target plate in the color experiments than in the shape experiments. In conclusion, in our experimental setup, color was of better assistance to the foragers of S. mexicana than shape to choose their rewards. This is the first study in which it is demonstrated that the choice performance over time in a stingless bee depends upon the characteristics of the resource, such as shape and color.
Main Authors: | Sánchez Guillén, Daniel Doctor autor 6863, Vandame, Rémy Doctor autor 3181 |
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Format: | Texto biblioteca |
Language: | eng |
Subjects: | Scaptotrigona mexicana, Comportamiento de los insectos, Preferencias alimentarias, Ecología de los insectos, |
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