NDLI: Convergent evolution: floral guides, stingless bee nest entrances, and insectivorous pitchers

Content Provider	Springer Nature Link
Author	Biesmeijer, Jacobus C. Giurfa, Martin Koedam, Dirk Potts, Simon G. Joel, Daniel M. Dafni, Amots
Copyright Year	2005
Abstract	Several recent hypotheses, including sensory drive and sensory exploitation, suggest that receiver biases may drive selection of biological signals in the context of sexual selection. Here we suggest that a similar mechanism may have led to convergence of patterns in flowers, stingless bee nest entrances, and pitchers of insectivorous plants. A survey of these non-related visual stimuli shows that they share features such as stripes, dark centre, and peripheral dots. Next, we experimentally show that in stingless bees the close-up approach to a flower is guided by dark centre preference. Moreover, in the approach towards their nest entrance, they have a spontaneous preference for entrance patterns containing a dark centre and disrupted ornamentation. Together with existing empirical evidence on the honeybee's and other insects’ orientation to flowers, this suggests that the signal receivers of the natural patterns we examined, mainly Hymenoptera, have spontaneous preferences for radiating stripes, dark centres, and peripheral dots. These receiver biases may have evolved in other behavioural contexts in the ancestors of Hymenoptera, but our findings suggest that they have triggered the convergent evolution of visual stimuli in floral guides, stingless bee nest entrances, and insectivorous pitchers.
Starting Page	444
Ending Page	450
Page Count	7
File Format	PDF
ISSN	00281042
Journal	Naturwissenschaften
Volume Number	92
Issue Number	9
e-ISSN	14321904
Language	English
Publisher	Springer-Verlag
Publisher Date	2005-08-13
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Environment Life Sciences
Content Type	Text
Resource Type	Article
Subject	Medicine Ecology, Evolution, Behavior and Systematics

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