Misinformed leaders lose influence over pigeon flocks

Area of Science:

• Animal behavior
• Collective decision-making
• Navigation

Background:

• In social animals, leaders with disproportionate influence can negatively impact group performance if they possess inaccurate information.
• Understanding how groups adapt to misinformation from leaders is crucial for studying collective decision-making.

Purpose of the Study:

• To investigate if better-informed group members can replace leaders with inaccurate information.
• To examine the adaptive consequences of flexible decision-making structures in animal groups.

Main Methods:

• Utilized a clock-shifting procedure to manipulate navigational information error in established leaders of homing pigeon flocks.
• Observed changes in leadership and information flow within hierarchically structured groups.

Main Results:

• Inaccurate information held by leaders led to a loss of influence in the majority of cases.
• Hierarchical positions rearranged, effectively filtering out misinformation from former leaders.
• Prevented the propagation of errors down the group hierarchy.

Conclusions:

• Flexible decision-making structures are adaptive, allowing groups to mitigate the impact of misinformation from influential individuals.
• This study highlights the importance of adaptability in collective decision-making to maintain group performance.