Behavioral flexibility promotes collective consistency in a social insect.

Area of Science:

• Behavioral Ecology
• Social Insects
• Collective Behavior

Background:

• Understanding how individuals integrate into a functional collective unit is key to explaining group behaviors.
• Social processes significantly influence individual actions within a group setting.

Purpose of the Study:

• To investigate collective temperature homeostasis in bumblebee (Bombus terrestris) colonies.
• To determine how social context affects individual thermoregulatory behavior during heat stress.

Main Methods:

• Empirical investigation of bumblebee colony thermoregulation.
• Comparison of individual fanning behavior in group versus solitary settings under heat stress.
• Analysis of worker participation patterns in thermoregulatory fanning.

Main Results:

• Bees engaged in less thermoregulatory fanning and invested less time when in a group compared to alone.
• A consistent proportion of workers fanned, but the individuals involved varied unpredictably across trials.
• This social down-regulation maintained a stable collective response despite individual behavioral flexibility.

Conclusions:

• Bumblebee colonies exhibit social responsiveness and individual behavioral flexibility to maintain collective homeostasis.
• Findings challenge models assuming fixed inter-individual variation in task allocation for collective behavior.
• Social integration in bumblebees relies on dynamic behavioral adjustments rather than fixed roles.