Digest: More than just a pretty fin: The evolution of sexual ornaments in killifish*

Vikram P. Narayan*, Nidarshani Wasana, Yiguan Wang, Cara Conradsen

*Corresponding author for this work

Research output: Contribution to journalComment/debatepeer-review

Abstract / Description of output

What conditions favor the evolution of elaborate sexual ornaments? In freshwater killifishes, Sowersby et al. found that larger sexual ornaments were negatively associated with locomotive performance. Although selection clearly favored large ornamental fins in environments with fewer predators, there was no clear association between large ornamental fins and differences in life-history strategy. This finding illustrates that habitat differences in predation risk have the potential to influence the evolution of secondary sexual traits such as ornaments through natural selection. This article corresponds to Sowersby, W., S. Eckerstrom-Liedholm, P. K. Rowinski, J. Balogh, S. Eiler, J. Upstone, A. Gonzalez-Voyer, and B. Rogell. 2021. The relative effects of pace of life-history and habitat characteristics on the evolution of sexual ornaments: a comparative assessment. Evolution. https://doi.org/10.1111/evo.14358.
Original languageEnglish
Number of pages3
JournalEvolution: International Journal of Organic Evolution
Early online date5 Dec 2021
DOIs
Publication statusE-pub ahead of print - 5 Dec 2021

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