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Variability in individual assessment behaviour and its implications for collective decision-making
Thomas A O'Shea-Wheller1, Naoki Masuda2, Ana B Sendova-Franks3
1School of Biological Sciences, University of Bristol, Life Sciences Building, 24 Tyndall Avenue, Bristol BS8 1TH, UK to13870@bristol.ac.uk.
Proceedings. Biological Sciences
|February 3, 2017
Summary
Individual ant nest assessments vary, influencing collective decision-making. This heterogeneity in assessment durations benefits group choices in Temnothorax albipennis ants.
Area of Science:
- Behavioral Ecology
- Collective Behavior
- Insect Social Systems
Background:
- Collective decision-making is common in social organisms.
- Less is known about how individual assessment variations impact group choices.
Purpose of the Study:
- Investigate how individual assessment variability influences collective nest choice in ants.
- Explore the role of heterogeneous assessments in group decision-making.
Main Methods:
- Experimental study of Temnothorax albipennis ants choosing between nest sites.
- Computational modeling of ant nest selection behavior.
- Analysis of individual nest assessment durations.
Main Results:
- Individual ants showed significant variation in nest assessment durations for a given nest quality.
- Ants consistently spent more time in higher-quality nests.
- Heterogeneous assessments were found to confer benefits in computational models.
- Nest quality assessments were flexible and influenced by prior experience.
Conclusions:
- Variability in individual nest assessments is crucial for effective collective decision-making in ants.
- Heterogeneity, not precise calibration, shapes group behavior.
- Understanding individual differences is key to understanding group behavior.
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