Predicting the direction of ornament evolution in Trinidadian guppies (Poecilia reticulata) Kemp, Darrell J., Reznick, David N., Grether, Gregory F. and Endler, John A. 2009, Predicting the direction of ornament evolution in Trinidadian guppies (Poecilia reticulata), Proceedings of the Royal Society B : biological sciences, vol. 276, no. 1677, pp. 4335-4343, doi: 10.1098/rspb.2009.1226. Attached Files Name Description MIMEType Size Downloads Title Predicting the direction of ornament evolution in Trinidadian guppies (Poecilia reticulata) Author(s) Kemp, Darrell J. Reznick, David N. Grether, Gregory F. Endler, John A. orcid.org/0000-0002-7557-7627 Journal name Proceedings of the Royal Society B : biological sciences Volume number 276 Issue number 1677 Start page 4335 End page 4343 Total pages 9 p. Publisher The Royal Society Publishing Place of publication London, England Publication date 2009 ISSN 0962-8452 Summary Sexual selection is thought to be opposed by natural selection such that ornamental traits express a balance between these two antagonistic influences. Phenotypic variation among populations may indicate local shifts in this balance, or that different stable ‘solutions’ are possible, but testing these alternatives presents a major challenge. In the guppy (Poecilia reticulata), a small freshwater fish with male-limited ornamental coloration, these issues can be addressed by transplanting fish among sites of varying predation pressure, thus effectively manipulating the strength and nature of natural selection. Here, we contrast the evolutionary outcome of two such introductions conducted in the Trinidadian El Cedro and Aripo Rivers. We use sophisticated colour appraisal methods that account for full spectrum colour variation and which incorporate the very latest visual sensitivity data for guppies and their predators. Our data indicate that ornamentation evolved along different trajectories: whereas Aripo males evolved more numerous and/or larger orange, black and iridescent markings, El Cedro males only evolved more extensive and brighter iridescence. Examination of the El Cedro experiment also revealed little or no ornamental evolution at the control site over 29 years, which contrasts markedly with the rapid (approx. 2–3 years) changes reported for introduction populations. Finally, whole colour-pattern analysis suggested that the greatest visual difference between El Cedro introduction and control fish would be perceived by the two most salient viewers: guppies and the putatively dangerous predator Crenicichla alta. We discuss whether and how these evolutionary trajectories may result from founder effects, population-specific mate preferences and/or sensory drive. Language eng DOI 10.1098/rspb.2009.1226 Field of Research 060803 Animal Developmental and Reproductive Biology 060304 Ethology and Sociobiology Socio Economic Objective 970106 Expanding Knowledge in the Biological Sciences HERDC Research category C1.1 Refereed article in a scholarly journal Copyright notice ©2009, The Royal Society Free to Read? Yes Persistent URL http://hdl.handle.net/10536/DRO/DU:30023062 Document type: Journal Article Collections: Faculty of Science, Engineering and Built Environment School of Life and Environmental Sciences Open Access Collection Centre for Integrative Ecology Related Links Link Description Link to full-text (open access)   Connect to published version (restricted access) Go to link with your DU access privileges     Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved. Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au. Versions Version Filter Type Wed, 10 Feb 2010, 12:11:24 EST Wed, 28 Apr 2010, 12:26:44 EST Wed, 28 Apr 2010, 12:29:51 EST Thu, 29 Apr 2010, 12:42:32 EST Thu, 29 Apr 2010, 12:47:35 EST Mon, 14 Jul 2014, 09:47:04 EST Wed, 06 Aug 2014, 13:49:39 EST Wed, 06 Aug 2014, 13:51:00 EST Thu, 11 Dec 2014, 16:26:32 EST Thu, 07 Nov 2019, 10:37:10 EST Filtered Full Citation counts:   Cited 45 times in TR Web of Science Cited 47 times in Scopus Search Google Scholar Access Statistics: 801 Abstract Views, 0 File Downloads  -  Detailed Statistics Created: Wed, 10 Feb 2010, 12:11:24 EST

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.