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Comment on “Female toads engaging in adaptive hybridization prefer high-quality heterospecifics as mates”

October 9, 2020

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.

Publication Year 2020
Title Comment on “Female toads engaging in adaptive hybridization prefer high-quality heterospecifics as mates”
DOI 10.1126/science.abd3905
Authors Michael J. Braun, Gerald S. Wilkinson, Brian S. Cade
Publication Type Article
Publication Subtype Journal Article
Series Title Science
Index ID 70216942
Record Source USGS Publications Warehouse
USGS Organization Fort Collins Science Center