10.5061/DRYAD.782M8
Svensson, Erik I.
Lund University
Nordén, Anna
Lund University
Waller, John T.
Lund University
Runemark, Anna
University of Oslo
Data from: Linking intra- and interspecific assortative mating:
consequences for asymmetric sexual isolation
Dryad
dataset
2016
Zygoptera
Anthropocene
Calopteryx splendens
Selection - Sexual
Calopteryx virgo
Calopterygidae
2016-05-02T16:55:54Z
2016-05-02T16:55:54Z
en
https://doi.org/10.1111/evo.12939
451761 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Assortative mating is of interest because of its role in speciation and
the maintenance of species boundaries. However, we know little about how
within-species assortment is related to interspecific sexual isolation.
Most previous studies of assortative mating have focused on a single trait
in males and females, rather than utilizing multivariate trait
information. Here we investigate how intraspecific assortative mating
relates to sexual isolation in two sympatric and congeneric damselfly
species (genus Calopteryx). We connect intraspecific assortment to
interspecific sexual isolation by combining field observations, mate
preference experiments and enforced copulation experiments. Using
canonical correlation analysis, we demonstrate multivariate intraspecific
assortment for body size and body shape. Males of the smaller species mate
more frequently with heterospecific females than males of the larger
species, which showed less attraction to small heterospecific females.
Field experiments suggest that sexual isolation asymmetry is caused by
male preferences for large heterospecific females, rather than by
mechanical isolation due to interspecific size differences or female
preferences for large males. Male preferences for large females and
male-male competition for high quality females can therefore counteract
sexual isolation. This sexual isolation asymmetry therefore indicates that
sexual selection currently opposes a species boundary.
Assortative mating data from "Klingavälsåns Naturreservat"Male
and female mating couples and morphological data in mating pairs from
"Klingavälsåns Naturreservat". Male and female ID:s and date of
capture are given (male above the female he was mating with), and value
for each of the eight measured morphological traits that we measured.
These trait values were used to estimate the strength of assortative
mating.AssortativeMatingCompletePairsKlingavalsan.csvAssortative mating
data from "Sövdemölla"Male and female mating couples and
morphological data in mating pairs from "Sövdemölla". Male and
female ID:s and date of capture are given (male above the female he was
mating with), and value for each of the eight measured morphological
traits that we measured. These trait values were used to estimate the
strength of assortative
mating.AssortativeMatingCompletePairsSovdemolla.csvCombined assortative
mating data from both localities (trait values centred by mean)Male and
female mating couples and morphological data in mating pairs from
"Klingavälsåns Naturreservat" and "Sövdemölla" (both
populations combined, morphological trait data centred to mean zero). Male
and female ID:s and date of capture are given (male above the female he
was mating with), and value for each of the eight measured morphological
traits that we measured. These trait values were used to estimate the
strength of assortative mating.DataCentered.csvCombined assortative mating
data from both localities (trait values scaled to mean zero and unit
variance))Assortative mating data (male and female trait values; scaled to
mean zero and unit variance) from "Klingavälsåns Naturreservat"
and "Sövdemölla" (combined). Eight morphological traits were
measured in both males and females, and each male that was found
copulating with his female is given (male above, female
below).DataScaled.csvMale mate preferences for con- and heterospecific
females (Fig. 4)Dataset behind Fig. 4, showing Calopteryx male mate
preferences for con- and heterospecific females in field presentation
experiments."Score" shows male mating response. Female ID, year
and population are also given.MalePreferences.txtR-script for analyzing
male mate preferences (Fig. 4)R-script to analyze male mate preferences
(binomial variable) using a Generalized Linear Model (GLZ). Results are
presented in Fig. 4, and the dataset is provided as another file in DRYAD
associated with this paper.RScriptFig4.txtR-script for CCA-analyses (Table
2 and Table S6)R-script behind the Canonical Correlation Analyses (CCA)
presented in Table 2 and Table S6.RScriptTable2TableS6.txtR-script for
Table S1R-script behind the analyses for Table
S1.RScriptTableS1.txtR-script for Table S2 (factor loadings)R-script
behind the analyses in Table S2 (factor
loadings).RScriptTableS2.txtR-script behind Table S3 (calculating
individual scores)R-script behind the calculations of individual scores in
Table S3.RScriptTableS3.txtR-script behind Table S4 (CCA:s for each
species separately)R-script behind the Canonical Correlation Analyses
(CCA:s) for Calopteryx splendens and C. virgo (Table
S4).RScriptTableS4.txtR-script (Table S5) and data on female mating
preferencesR-script and dataset (N=30 males) behind analyses in Table S5
on female mating preferences in relation to male body size and male wing
patch characteristics.RScriptTableS5.txtRScript behind Table S6 (four
separate Principal Component Analyses)R-script for Principal Component
Analyses (PCA:s) of the eight morphological traits of all four phenotypes
(C. splendens males and females and C. virgo males and females). Results
are given i Table S6.RScriptTableS6.txt
Sweden
Fennoscandia
Western Palearctic
Europe