Do "White" and "Green" Look the Same to a Bee? |
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| Authors: | M Vorobyev N Hempel de Ibarra R Brandt M Giurfa |
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| Institution: | Institut für Neurobiologie, Freie Universit?t Berlin, K?nigin-Luise-Strasse 28–30, D-14195 Berlin, Germany e-mail: Vorobyev@zedat.fu-berlin.de, Tel.: +49-30-8386441, Fax: +49-30-838-5455, DE
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| Abstract: | The hexagon model of color vision predicts that white flowers which reflect ultraviolet light resemble green foliage to a
bee's eye, whereas, according to other models of the bee color vision, UV-reflecting white is discriminable from foliage green.
The hexagon model is widely used in ecologically and evolutionary oriented literature, and the predicted similarity between
white and green has been recently presented as a well established fact (Waser and Chittka 1998). We show that bees detect
UV-reflecting white objects presented on a green background, a finding that is in disagreement with the predictions of the
hexagon model.
Received: 22 March 1999 / Accepted in revised form: 2 July 1999 |
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