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Synergistic olfactory processing for social plasticity in desert locusts

Author

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  • Inga Petelski

    (Ecology and Evolution from lab to field
    University of Konstanz
    Max Planck Institute of Animal Behavior)

  • Yannick Günzel

    (Ecology and Evolution from lab to field
    University of Konstanz
    Max Planck Institute of Animal Behavior
    University of Konstanz)

  • Sercan Sayin

    (University of Konstanz
    University of Konstanz)

  • Susanne Kraus

    (University of Konstanz)

  • Einat Couzin-Fuchs

    (University of Konstanz
    Max Planck Institute of Animal Behavior
    University of Konstanz)

Abstract

Desert locust plagues threaten the food security of millions. Central to their formation is crowding-induced plasticity, with social phenotypes changing from cryptic (solitarious) to swarming (gregarious). Here, we elucidate the implications of this transition on foraging decisions and corresponding neural circuits. We use behavioral experiments and Bayesian modeling to decompose the multi-modal facets of foraging, revealing olfactory social cues as critical. To this end, we investigate how corresponding odors are encoded in the locust olfactory system using in-vivo calcium imaging. We discover crowding-dependent synergistic interactions between food-related and social odors distributed across stable combinatorial response maps. The observed synergy was specific to the gregarious phase and manifested in distinct odor response motifs. Our results suggest a crowding-induced modulation of the locust olfactory system that enhances food detection in swarms. Overall, we demonstrate how linking sensory adaptations to behaviorally relevant tasks can improve our understanding of social modulation in non-model organisms.

Suggested Citation

  • Inga Petelski & Yannick Günzel & Sercan Sayin & Susanne Kraus & Einat Couzin-Fuchs, 2024. "Synergistic olfactory processing for social plasticity in desert locusts," Nature Communications, Nature, vol. 15(1), pages 1-15, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-49719-7
    DOI: 10.1038/s41467-024-49719-7
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    References listed on IDEAS

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    1. Debajit Saha & Chao Li & Steven Peterson & William Padovano & Nalin Katta & Baranidharan Raman, 2015. "Behavioural correlates of combinatorial versus temporal features of odour codes," Nature Communications, Nature, vol. 6(1), pages 1-13, November.
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    3. Yael Grosjean & Raphael Rytz & Jean-Pierre Farine & Liliane Abuin & Jérôme Cortot & Gregory S. X. E. Jefferis & Richard Benton, 2011. "An olfactory receptor for food-derived odours promotes male courtship in Drosophila," Nature, Nature, vol. 478(7368), pages 236-240, October.
    4. Shawn R. Olsen & Rachel I. Wilson, 2008. "Lateral presynaptic inhibition mediates gain control in an olfactory circuit," Nature, Nature, vol. 452(7190), pages 956-960, April.
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