Comment on "Female toads engaging in adaptive hybridization prefer high-quality heterospecifics as mates".
editorial · Level V
Where this comes from
- Record sourced from PubMed, PMID 33033187.
- Also identified by DOI 10.1126/science.abd3905.
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Abstract
Chen and Pfennig (Reports, 20 March 2020, p. 1377) analyze the fitness consequences of hybridization in toads but do not account for differences in survival among progeny. Apparent fitness effects depend on families with anomalously low survival, yet survival is crucial to evolutionary fitness. This and other analytical shortcomings demonstrate that a conclusion of adaptive mate choice is not yet justified.
Medical subject headings
- Hybridization, Genetic
- Sexual Behavior, Animal