Plant Volatiles, Rather than Light, Determine the Nocturnal Behavior of a Caterpillar
2006
Plant Signals Help Caterpillars Decide When to Eat
publication
Evidence: moderate
Author Information
Author(s): Kaori Shiojiri, Rika Ozawa, Junji Takabayashi
Hypothesis
Can plant volatile compounds influence the foraging behavior of caterpillars?
Conclusion
Plant volatiles released during the day encourage caterpillars to hide, while those released at night signal that it is safe to forage.
Supporting Evidence
- Volatile compounds released by corn plants attract parasitic wasps that prey on caterpillars.
- Larvae showed increased hiding behavior when exposed to plant volatiles during the day.
- Nighttime exposure to plant volatiles indicated safety for caterpillars to forage.
Takeaway
Caterpillars listen to plants to know when it's safe to eat. During the day, plants send out signals that tell them to hide from predators.
Methodology
The researchers tested the effects of light and plant volatiles on caterpillar behavior by exposing them to different conditions and observing their hiding behavior.
Digital Object Identifier (DOI)
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