Aggressive interactions influence cognitive performance in Western Australian magpies

Area of Science:

• Animal behavior
• Cognitive ecology
• Neuroethology

Background:

• Social complexity is hypothesized to drive cognitive evolution.
• Evidence linking social environment and cognition is often equivocal.
• Group size is a limited proxy for social complexity, neglecting individual social interactions.

Purpose of the Study:

• To investigate the relationship between social network characteristics and cognitive performance in Western Australian magpies (Gymnorhina tibicen dorsalis).
• To determine if cognitive performance relates to group size and individual social connectedness, considering various interaction types.

Main Methods:

• Utilized social network analysis to quantify individual social connectedness based on proximity, affiliative, agonistic, and vocal interactions.
• Assessed cognitive performance using an associative learning task in wild magpies.
• Correlated social network metrics and group size with cognitive task performance.

Main Results:

• Individuals in larger groups showed better performance on the associative learning task, consistent with prior research.
• Social network position was significantly related to cognitive performance.
• Receiving aggressive interactions was linked to improved performance, whereas engaging in aggression with more individuals correlated with poorer performance.

Conclusions:

• Cognitive performance is influenced by specific social interactions rather than solely by group size.
• Fine-grained metrics of sociality, capturing the nuances of social challenges, are crucial for understanding the social environment's impact on cognition.