Vitamin E as a Sexual Signal in Lizards
2011

Vitamin E Supplementation Increases the Attractiveness of Males' Scent for Female European Green Lizards

Sample size: 36 publication 10 minutes Evidence: high

Author Information

Author(s): Kopena Renáta, Martín José, López Pilar, Herczeg Gábor

Primary Institution: Eötvös Loránd University, Budapest, Hungary

Hypothesis

High levels of vitamin E in femoral secretions of male European green lizards might be a sexual trait preferred by females.

Conclusion

Female green lizards can discriminate between males based on the vitamin E content of their femoral secretions.

Supporting Evidence

  • Male lizards with vitamin E supplementation had higher proportions of vitamin E in their secretions.
  • Females preferred areas marked by males with higher vitamin E levels.
  • The strength of female preference increased with the vitamin E concentration difference between males.

Takeaway

Male lizards that eat more vitamin E are more attractive to female lizards because they smell better.

Methodology

The study involved dietary supplementation of vitamin E to male lizards and subsequent analysis of their femoral secretions and female preference tests.

Potential Biases

Potential biases could arise from the artificial setting and handling of lizards during the experiments.

Limitations

The study was conducted in a controlled environment, which may not fully represent natural conditions.

Participant Demographics

The study involved 20 male and 16 female adult European green lizards.

Statistical Information

P-Value

p<0.001

Statistical Significance

p<0.001

Digital Object Identifier (DOI)

10.1371/journal.pone.0019410

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