Behavioural variation among workers promotes feed-forward loops in a simulated insect colony
Data files
Feb 28, 2022 version files 535.29 KB
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Activity_effects_Interactions_from_actives_Triangle_transitivity.csv
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Analysis_code_Easter_et_al_2022.R
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Default_values_Interactions_from_actives_Triangle_transitivity.csv
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Default_values_Interactions_to_actives_Triangle_transitivity.csv
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Diffusion_data_Interactions_from_actives.csv
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Diffusion_data_Interactions_to_actives.csv
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Diffusion_data_Static_networks.csv
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Exp1_triadCensusData_networkDensity1000.csv
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Exp2_triadCensusData.csv
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NormalizedZScores_Fig7.csv
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README.txt
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Sensitivity_analysis_Mean_activity_From_active_Triangle_transitivity.csv
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Sensitivity_analysis_Mean_turning_index_From_active_Triangle_transitivity.csv
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Triad_census_code_Easter_et_al_2022.R
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Abstract
Coordinated responses in eusocial insect colonies arise from worker interaction networks that enable collective processing of ecologically relevant information. Previous studies have detected a structural motif in these networks known as the feed-forward loop, which functions to process information in other biological regulatory networks (e.g., transcriptional networks). However, the processes that generate feed-forward loops among workers and the consequences for information flow within the colony remain largely unexplored. We constructed an agent-based model to investigate how individual variation in activity and movement shaped production of feed-forward loops in a simulated insect colony. We hypothesised that individual variation along these axes would generate feed-forward loops by driving variation in interaction frequency among workers. We found that among-individual variation in activity drove overrepresentation of feed-forward loops in the interaction networks by determining the directionality of interactions. However, despite previous work linking feed-forward loops with efficient information transfer, activity variation did not promote faster or more efficient information flow, thus providing no support for the hypothesis that feed-forward loops reflect selection for enhanced collective functioning. Conversely, individual variation in movement trajectory, despite playing no role in generating feed-forward loops, promoted fast and efficient information flow by linking together unconnected regions of the nest.
Data was collected using the Netlogo agent-based simulation available from the Zenodo software repository: https://doi.org/10.5281/zenodo.5931784
Using this model, we examined how among-individual variations in activity and turning indices influenced the production of feed-forward loops within the population social network. This dataset includes all the data and R code required to reproduce our analysis and figures. Full details on the analysis can be found in the manuscript.
The agent-based model can be downloaded from the Zenodo software repository: https://doi.org/10.5281/zenodo.5931784
Please refer to README file for usage information and additional details.