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
| Main Authors: | Goldberg, Daniel Lorenz, Landy, Joseph Alex, Travis, Joseph, Springer, Mark S., Reznick, David N. |
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| Format: | info dataset Journal |
| Terbitan: |
, 2018
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/4977283 |
Daftar Isi:
- 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.
- 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.csvFunding provided by: National Science FoundationCrossref Funder Registry ID: http://dx.doi.org/10.13039/100000001Award Number: DEB-0416085