Optimal-Foraging Predator Favors Commensalistic Batesian Mimicry: A Simulation Model of Mimicry
Author Information
Author(s): Honma Atsushi, Takakura Koh-ichi, Nishida Takayoshi
Primary Institution: Kyoto University
Hypothesis
How do various ecological and psychological factors affect the relationships between a Model prey species and its Mimic?
Conclusion
The study suggests that the availability of alternative prey critically determines the relationship between Model and Mimic, and that predation risk is influenced more by the absolute density of the Model than by its density relative to the Mimic.
Supporting Evidence
- When alternative prey are abundant, a Mimic does not harm its Model.
- The relationship between Model and Mimic is determined mainly by the value of the attack threshold.
- Predator psychology has less effect on Model-Mimic relationships than the presence of alternative prey.
Takeaway
This study shows that sometimes, having a Mimic around doesn't hurt the Model, especially when there are plenty of other food options for predators.
Methodology
A Monte Carlo model simulation was developed to analyze predator behavior and the effects of alternative prey on Model-Mimic relationships.
Limitations
The model does not address the evolutionary dynamics of the aposematic traits of the Model and Mimic.
Statistical Information
P-Value
p<0.01
Statistical Significance
p<0.01
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website