Do Leaf Cutting Ants Cut Undetected? Testing the Effect of Ant-Induced Plant Defences on Foraging Decisions in Atta colombica
2011
How Leaf-Cutting Ants Affect Plant Defenses
Sample size: 16
publication
Evidence: high
Author Information
Author(s): Kost Christian, Tremmel Martin, Wirth Rainer
Primary Institution: Max Planck Institute for Chemical Ecology
Hypothesis
The induction of anti-herbivore defences by attacked food plants should significantly affect the ants' foraging behaviour.
Conclusion
Leaf-cutting ants' foraging behaviour is influenced by the induction of plant defence responses.
Supporting Evidence
- Lima bean plants exposed to leaf-cutting ants emitted significantly more volatile organic compounds than undamaged plants.
- Ants preferred plants they had previously cut over undamaged control plants.
- Strong induction levels of plant defences repelled leaf-cutting ants.
Takeaway
Leaf-cutting ants can change how plants defend themselves, which in turn affects how the ants choose their food.
Methodology
The study involved bioassays with lima bean plants to measure volatile organic compound emissions and ant foraging preferences.
Limitations
The study may not account for all factors influencing ant foraging decisions.
Statistical Information
P-Value
p<0.001
Confidence Interval
±95%
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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