Flower patterns are adapted for detection by bees |
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Authors: | Natalie Hempel de Ibarra Misha Vorobyev |
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Institution: | 1. Neurobiologie, Institut für Biologie, Freie Universit?t Berlin, K?nigin-Luise-Str. 28/30, 14195, Berlin, Germany 2. Centre for Research in Animal Behaviour, School of Psychology, University of Exeter, Perry Road, Exeter, EX4 4QG, UK 3. Department of Optometry and Vision Science, University of Auckland, Private Bag, 92019, Auckland, New Zealand
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Abstract: | We have demonstrated previously that honeybees use brightness vision mediated by green (or L-) receptor to detect targets
from a long distance. They detect circular targets having a dim, for the L-receptor, centre and bright surround from a longer
distance than targets having bright centre and dim surround. Here we show that a majority of bee-pollinated flowers have a
centre that, for the L-receptor, is dim with bright surround, i.e. have patterns that are easy for a bee to detect. Flowers
with dim for the L-receptor surrounds tend to be larger than those with bright surrounds, indicating that flowers compensate
for the impaired visibility of their patterns by increasing the size of their displays. |
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Keywords: | Vision Visual ecology Pollination ecology Bees Flowers |
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