DOI: 10.5061/dryad.2h0k50s
title: Data from: In love and war: the morphometric and phylogenetic basis of ornamentation, and the evolution of male display behavior, in the livebearer genus Poecilia

description: Exaggerated male traits under sexual selection are often used for both
 competition and courtship, raising the question of whether ornaments
 evolved simultaneously for both functions, or if use in one context
 preceded use in another. Here we apply a phylogenetic approach to study
 the evolution of ornamental dorsal fins in male poeciliid fish of the
 subgenera Mollienesia and Limia, which exhibit convergent development of
 an enlarged dorsal fin, and often direct erect-fin displays to male and
 female conspecifics. Unlike prior categorical assessments of poeciliid
 adornments, we measure dorsal fin exaggeration with a continuous index of
 ornamentation. Phylogenetic logistic and generalized least-squares
 regression analyses indicate that high index values are significantly
 associated with the use of two component postures of courtship and
 aggressive displays, dorsal fin erection and body curvature, but not with
 the presence of sexual dichromatism. Male displays initially evolved for
 male-male aggression in the common ancestor of Mollienesia and Limia,
 suggesting that this signal originated for competition, then became
 co-opted for courtship. These results support the armament-ornament
 hypothesis for evolution of exaggerated male traits, and are consistent
 with an evolutionary shift in the predominant mechanisms of sexual
 selection from intra- to intersexual.
description: R Code for Analysis of
 Covariance to Calculate the Ornamentation IndexIncluded in this file is
 the R code needed to conduct an analysis of covariance to calculate the
 ornamentation index for 37 measured species of Poecilia. The # annotations
 indicate steps that were done in every analysis for each species. The
 final calculated values of the ornamentation index are highlighted in
 yellow. Dorsal fin length refers to the measurement of dorsal fin height
 (height of the longest fin ray) used to calculate the ornamentation index,
 whereas dorsal fin width refers to the length of the dorsal fin at its
 base.Goldberg et al ANCOVA for OI R
 Code.docxMeasurements of
 Specimens of Limia caymanensisLimia
 caymanensis.csvMeasurements of
 Specimens of Limia dominicensisLimia
 dominicensis.csvMeasurements of
 Specimens of Limia grossidensLimia
 grossidens.csvMeasurements of
 Specimens of Limia melanogasterLimia
 melanogaster.csvMeasurements of
 Specimens of Limia melanonotataLimia
 melanonotata.csvMeasurements of
 Specimens of Limia nigrofasciataLimia
 nigrofasciata.csvMeasurements of
 Specimens of Limia pauciradiataLimia
 pauciradiata.csvMeasurements of
 Specimens of Limia perugiaeLimia
 perugiae.csvMeasurements of
 Specimens of Limia rivasiLimia
 rivasi.csvMeasurements of
 Specimens of Limia sulfurophilaLimia
 sulfurophila.csvMeasurements of
 Specimens of Limia tridensLimia
 tridens.csvMeasurements of
 Specimens of Limia versicolorLimia
 versicolor.csvMeasurements of
 Specimens of Limia vittataLimia
 vittata.csvMeasurements of
 Specimens of Limia zonataLimia
 zonata.csvMeasurements of
 Specimens of Pseudolimia heterandriaPseudolimia
 heterandria.csvMeasurements of
 Specimens of Allopoecilia caucanaAllopoecilia
 caucana.csvMeasurements of
 Specimens of Psychropoecilia hispaniolanaPsychropoecilia
 hispaniolana.csvMeasurements of
 Specimens of Pamphorichthys araguaiensisPamphorichthys
 araguaiensis.csvMeasurements of
 Specimens of Pamphorichthys hasemaniPamphorichthys
 hasemani.csvMeasurements of
 Specimens of Pamphorichthys hollandiPamphorichthys
 hollandi.csvMeasurements of
 Specimens of Pamphorichthys minorPamphorichthys
 minor.csvMeasurements of
 Specimens of Pamphorichthys scalpridensPamphorichthys
 scalpridens.csvMeasurements of
 Specimens of Poecilia butleriPoecilia
 butleri.csvMeasurements of
 Specimens of Poecilia chicaPoecilia
 chica.csvMeasurements of
 Specimens of Poecilia gilliPoecilia
 gilli.csvMeasurements of
 Specimens of Poecilia hondurensisPoecilia
 hondurensis.csvMeasurements of
 Specimens of Poecilia latipinnaPoecilia
 latipinna.csvMeasurements of
 Specimens of Poecilia latipunctataPoecilia
 latipunctata.csvMeasurements of
 Specimens of Poecilia limantouriPoecilia
 limantouri.csvMeasurements of
 Specimens of Poecilia mexicanaPoecilia
 mexicana.csvMeasurements of
 Specimens of Poecilia orriPoecilia
 orri.csvMeasurements of
 Specimens of Poecilia petenensisPoecilia
 petenensis.csvMeasurements of
 Specimens of Poecilia salvatorisPoecilia
 salvatoris.csvMeasurements of
 Specimens of Poecilia sphenopsPoecilia
 sphenops.csvMeasurements of
 Specimens of Poecilia sulphurariaPoecilia
 sulphuraria.csvMeasurements of
 Specimens of Poecilia veliferaPoecilia
 velifera.csvMeasurements of
 Specimens of Poecilia viviparaPoecilia
 vivipara.csv