Predators Make (Temporary) Escape from Coevolutionary Arms Race
Author Information
Author(s): Hanifin Charles T, Brodie Edmund D Jr., Brodie Edmund D III
Primary Institution: Utah State University
Hypothesis
How do geographic patterns of phenotypic mismatch between garter snakes and toxic newts inform our understanding of coevolution?
Conclusion
Predators can escape the arms race through the evolution of extreme resistance, while prey do not benefit similarly.
Supporting Evidence
- Geographic patterns of phenotypic exaggeration were similar in prey and predators.
- Over one-third of sampled localities were mismatched, preventing reciprocal selection.
- Predators were consistently 'ahead' of prey in the arms race.
- Extreme resistance in snakes allows them to escape selection from prey toxicity.
Takeaway
Sometimes, snakes become super good at handling toxic newts, but the newts never get better at defending themselves.
Methodology
The study analyzed the toxicity of newts and the resistance of snakes across 28 localities to assess phenotypic mismatches.
Potential Biases
Potential biases in sampling methods or localities may affect the generalizability of the findings.
Limitations
The study may not capture all ecological interactions affecting coevolution due to its geographic focus.
Participant Demographics
The study involved garter snakes and newts from various populations across western North America.
Statistical Information
P-Value
<0.0001
Statistical Significance
p<0.0001
Digital Object Identifier (DOI)
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