Postural analysis reveals persistent changes in paper wasp foundress behavioral state after conspecific challenge

Area of Science:

• Animal Behavior
• Social Insects
• Behavioral Ecology

Background:

• Vigilance in animals is crucial for detecting environmental threats, influenced by predators and social interactions.
• Understanding how conspecific threats affect vigilance over time is key to social plasticity hypotheses in social animals.

Purpose of the Study:

• To investigate the persistent effects of simulated conspecific challenges on the behavior of wild northern paper wasp (Polistes fuscatus) foundresses.
• To determine if paper wasp foundresses alter their vigilance and movement patterns after experiencing a threat from a conspecific.

Main Methods:

• Utilized automated tracking to monitor the movement and posture of Polistes fuscatus foundresses.
• Simulated conspecific intrusions to assess behavioral responses.
• Compared responses to conspecific threats versus a non-social stimulus (wooden dowel).

Main Results:

• Paper wasp foundresses showed increased movement, greater bilateral wing extension, and reduced antennal separation post-threat.
• These behavioral changes persisted even after the simulated threat was removed.
• No significant behavioral changes were observed after presentation with a wooden dowel.

Conclusions:

• Paper wasp foundresses exhibit prolonged vigilance-like behavior after confronting a conspecific threat.
• This sustained behavioral adjustment may represent an investment in ongoing surveillance for potential dangers.
• The findings are relevant to understanding the plasticity of social recognition and threat assessment in social insects.