bioRxiv preprint doi: https://doi.org/10.1101/648451; this version posted May 24, 2019. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY 4.0 International license. 1 2 Scale-eating specialists evolved adaptive feeding kinematics within a 3 microendemic radiation of San Salvador Island pupfishes 4 5 Michelle E. St. John1,2, Christopher H. Martin1,2* 6 7 1Department of Biology, University of North Carolina at Chapel Hill, NC, USA 8 9 2Department of Integrative Biology and Museum of Vertebrate Zoology, University of 10 California, Berkeley, CA 94720, USA 11 12 *Corresponding Author:
[email protected] 13 14 15 16 17 18 19 20 21 22 23 24 25 26 Short title: Scale-eating specialists evolved adaptive feeding kinematics. 27 keywords: feeding kinematics, novelty, key innovation, lepidophagy, performance, postzygotic 28 isolation, hybrid kinematics 29 Abstract: 269 words, Main text plus references/figures: 7,357, 5 Tables, 6 Figures, Supplemental 30 Tables S1-S3, Figures S1-S3, and Supplemental video S1 1 bioRxiv preprint doi: https://doi.org/10.1101/648451; this version posted May 24, 2019. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY 4.0 International license. 31 Abstract 32 Adaptation to novel ecological niches often includes shifts in behaviors, such as new foraging 33 preferences or changes in kinematics.