| Title: | Foraging Experiences Durably Modulate Honey Bees' Sucrose Responsiveness and Antennal Lobe Biogenic Amine Levels |
| Author(s): | Finkelstein AB; Brent CS; Giurfa M; Amdam GV; |
| Address: | "School of Life Sciences, Arizona State University, Tempe, USA. abasya@bu.edu. United States Department of Agriculture, Arid Land Agricultural Research Center, Maricopa, USA. Research Centre on Animal Cognition, Center for Integrative Biology, CNRS, University of Toulouse, 118 route de Narbonne, F-31062, Toulouse, Cedex 09, France. School of Life Sciences, Arizona State University, Tempe, USA. Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Aas, Norway" |
| DOI: | 10.1038/s41598-019-41624-0 |
| ISSN/ISBN: | 2045-2322 (Electronic) 2045-2322 (Linking) |
| Abstract: | "Foraging exposes organisms to rewarding and aversive events, providing a selective advantage for maximizing the former while minimizing the latter. Honey bees (Apis mellifera) associate environmental stimuli with appetitive or aversive experiences, forming preferences for scents, locations, and visual cues. Preference formation is influenced by inter-individual variation in sensitivity to rewarding and aversive stimuli, which can be modulated by pharmacological manipulation of biogenic amines. We propose that foraging experiences act on biogenic amine pathways to induce enduring changes to stimulus responsiveness. To simulate varied foraging conditions, freely-moving bees were housed in cages where feeders offered combinations of sucrose solution, floral scents, and aversive electric shock. Transient effects were excluded by providing bees with neutral conditions for three days prior to all subsequent assays. Sucrose responsiveness was reduced in bees that had foraged for scented rather than unscented sucrose under benign conditions. This was not the case under aversive foraging conditions, suggesting an adaptive tuning process which maximizes preference for high quality, non-aversive floral sites. Foraging conditions also influenced antennal lobe octopamine and serotonin, neuromodulators involved in stimulus responsiveness and foraging site evaluation. Our results suggest that individuals' foraging experiences durably modify neurochemistry and shape future foraging behaviour" |
| Keywords: | Animals Appetitive Behavior/drug effects/physiology Arthropod Antennae/drug effects/physiology Bees/*physiology Biogenic Amines/*metabolism Feeding Behavior/*physiology Mushroom Bodies/*metabolism Neuropil/*metabolism Octopamine/metabolism Odorants Reward; |
| Notes: | "MedlineFinkelstein, Abby Basya Brent, Colin S Giurfa, Martin Amdam, Gro V eng Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. England 2019/04/02 Sci Rep. 2019 Apr 1; 9(1):5393. doi: 10.1038/s41598-019-41624-0" |
