Journal
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Volume 104, Issue 5, Pages 1703-1707Publisher
NATL ACAD SCIENCES
DOI: 10.1073/pnas.0610506104
Keywords
Apis mellifera; biogenic amine; foraging; reward; social behavior
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Funding
- NIDA NIH HHS [DA-019864, R21 DA019864] Funding Source: Medline
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Honey bees communicate the location and desirability of valuable forage sites to their nestmates through an elaborate, symbolic dance language. The dance language is a uniquely complex communication system in invertebrates, and the neural mechanisms that generate dances are largely unknown. Here we show that treatments with controlled doses of the biogenic amine neuromodulator octopamine selectively increased the reporting of resource value in dances by forager bees. Oral and topical octoparnine treatments modulated aspects of dances related to resource profitability in a dose-dependent manner. Dances for pollen and sucrose responded similarly to octoparnine treatment, and these effects were eliminated by treatment with the octoparnine antagonist mianserin. We propose that octoparnine modulates the representation of floral rewards in dances by changing the processing of reward in the honey bee brain. Octopamine is known to modulate appetitive behavior in a range of solitary insects; the role of octoparnine in dance provides an example of how neural substrates can be adapted for new behavioral innovations in the process of social evolution.
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