Bees flexibly adjust decision strategies to information content in a foraging task

Area of Science:

• Animal behavior
• Sensory ecology
• Insect cognition

Background:

• Animals often use multiple sensory cues for decision-making, enhancing accuracy.
• Foraging insects like bumblebees face complex visual environments with multiple cues.

Purpose of the Study:

• To investigate bumblebee learning and decision-making strategies when presented with multiple visual cues.
• To determine how cue discriminability affects bumblebee reliance on different sensory features.

Main Methods:

• Bumblebees (Bombus terrestris) were trained on a foraging task with visual cues (color, shape, pattern).
• The discriminability of colors was systematically varied.
• Bees' choices and learning dynamics were observed.

Main Results:

• Bees exclusively used easily discriminable colors, ignoring shapes/patterns.
• When colors were difficult to discriminate, bees learned both color and shape/pattern features.
• Learning dynamics differed based on cue discriminability, suggesting a strategy switch.

Conclusions:

• Bumblebees flexibly adjust their learning strategies based on cue discriminability.
• This flexibility balances learning investment with decision accuracy in multicue environments.
• Cue blocking may facilitate this adaptive strategy switch in bumblebees.