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Robustness of collective scenting in the presence of physical obstacles

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Abstract

Honey bees (Apis mellifera L.) aggregate around the queen by collectively organizing a communication network to propagate volatile pheromone signals. Our previous study shows that individual bees “scent” to emit pheromones and fan their wings to direct the signal flow, creating an efficient search and aggregation process. In this work, we introduce environmental stressors in the form of physical obstacles that partially block pheromone signals and prevent a wide open path to the queen. We employ machine learning methods to extract data from the experimental recordings, and show that in the presence of an obstacle that blocks most of the path to the queen, the bees need more time but can still effectively employ the collective scenting strategy to overcome the obstacle and aggregate around the queen. Further, we increase the complexity of the environment by presenting the bees with a maze to navigate to the queen. The bees require more time and exploration to form a more populated communication network. Overall, we show that given volatile pheromone signals and only local communication, the bees can collectively solve the swarming process in a complex unstructured environment with physical obstacles and hit a limit when the obstacle is a much more complex maze.

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Acknowledgements

This work was supported by the National Science Foundation Graduate Research Fellowship under Grant No. DGE 1650115 (D.M.T.N.) and Physics of Living Systems Grant No. 2014212 (O.P.). Any opinion, findings, and conclusions or recommendations expressed in this material are those of the authors(s) and do not reflect the views of the NSF. We also acknowledge the BioFrontiers Institute (internal funds), the Interdisciplinary Research Theme on Autonomous Systems (O.P.).

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Correspondence to Orit Peleg.

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Nguyen, D.M.T., Fard, G.G., Iuzzolino, M.L. et al. Robustness of collective scenting in the presence of physical obstacles. Artif Life Robotics 27, 286–291 (2022). https://doi.org/10.1007/s10015-021-00712-z

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  • DOI: https://doi.org/10.1007/s10015-021-00712-z

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