DOI: 10.5061/dryad.kprr4xhgr
title: Data for: Ecological contexts shape sexual selection on male color morphs in wood tiger moths

description: Color polymorphisms in natural populations often reflect the interplay
 between various selective pressures, such as natural and sexual selection.
 In this study, we investigate the dynamics of sexual selection operating
 on color polymorphism in wood tiger moths under different ecological
 contexts. Wood tiger moths exhibit polymorphism in male hindwing
 coloration, with individuals possessing one or two dominant W alleles
 displaying two forms of white coloration that differ in their UV
 reflectance (WW, Wy), while those with two recessive y alleles exhibit
 yellow coloration (yy). Females carry the color alleles, but do not
 express them phenotypically. We performed two mate choice experiments that
 simulated two ecological conditions: one with limited morph availability
 and low male encounter rates and the other with all morphs present and
 high potential for male encounters. We collected data on morph-specific
 mating success of the males, mating latency, female rejections along with
 fitness measurements of the number of eggs, number of larvae and hatching
 success for each mated pair. Our data files contain this information along
 other variables used as random effects, such as the dates of the
 experiments, replicate numbers and unique IDs of the stock females used in
 these experiments. The data is stored as six .csv files along with a
 README file containing a more precise description of the variable names
 and types. We demonstrate that WW males consistently experience higher
 mating success compared to yy males, irrespective of the presence of Wy
 males and male encounter rates. Surprisingly, mating with a WW male does
 not confer direct reproductive benefits to females in terms of lifetime
 reproductive success; instead, Wy females exhibit overall higher
 reproductive success regardless of their mating partner. Although the
 precise mechanism driving the higher mating success of WW males remains
 unclear, a temporal decline in mating success of WW males suggests
 potential differences in male mating strategies. Our findings support the
 hypothesis that sexual selection contributes to the maintenance of
 polymorphism, revealing a stable mating advantage of a particular color
 morph that may be offset by other selective forces.
description: # Dataset for Ecological contexts shape sexual selection on male color
 morphs in wood tiger moths These files contain the data for the article
 "Ecological contexts shape sexual selection on male color morphs in
 wood tiger moths" by Selenius E., De Pasqual C., Hänninen M., Kartano
 L., Winters S., Mappes J. These files contain all necessary data to
 replicate the statistical analyses performed in the manuscript. The
 dataset consists of the following .csv files: MatingSuccess_largecage
 MatingSuccess_pairwise Rejections_largecage Rejections_pairwise
 Fitness_largecage Fitness_pairwise # Explanation of variables The data
 contains the following variables: Genotype - Color morph of the moth,
 either WW, WY or YY. FemaleGenotype - Color morph of the female moth.
 Either WW, Wy, yy or Wx, when it was known to be either WW or Wy.
 MaleGenotype - Color morph of the male moth. Samel values as for the
 FemaleGenotype. MothID - Individual ID of the moth. FemaleID - Individual
 ID of the female moth. MaleID - Individual ID of the male moth.
 Treatment_males - Refers to the morph combination used in the pairwise
 experiment. Can be WW_vs_Wy, WW_vs_yy, Wy_vs_yy or white_vs_yellow, when
 the male morph was known to be either WW or Wy. Mated - Binomial variable
 for mating success. 1 if the individual mated and 0 if not. Weight -
 Weight of the individual moth in milligrams (mg). FemaleWeight - Weight of
 the female moth in mg. MaleWeight - Weight of the male moth in mg. Age -
 Age of the individual moth in days. Measured as the time between eclosion
 and day the individual was used in the experiment. FemaleAge - Age of the
 female moth in days. Measured as the time between eclosion and day the
 individual was used in the experiment. MaleAge - Age of the male moth in
 days. Measured as the time between eclosion and day the individual was
 used in the experiment. Sex - Sex of the individual moth. f is for female
 and m is for male. Replicate - Number indicating which replicate the
 individual was in for the large cage experiment. In total we had 15
 replicates. DateReplicate - The date when the experiment was done for each
 replicate. Night - Whether it was the first (1) or second (2) night of the
 large cage experiment. Year - the year of the experiment. MatingDate -
 Full date of the trial in the pairwise experiment. Choice - Morph of the
 male who mated with the female in the pairwise experiment. NA for the
 individuals that did not mate. MatingLatency - Latency to mate calculated
 as minutes between the start of the trial to the moment a mating was
 observed. Generation - Describes the yearly generation from which the
 laboratory stock moth came from. 2 refers to the second generation of the
 year and 3 to the third generation. TotalRejected - Refers to the total
 number of rejections within each replicate of the large cage experiment,
 separated by female and male morph. Likelihood_female_rejected -
 Likelihood that a female rejected a male mating attempt as either 0 (did
 not reject) or 1 (rejected at least once). Only one value per female, NA
 otherwise. Number_times_female_rejected - Total number of times female
 rejected a male. Likelihood_male_being_rejected - Likelihood a male mating
 attempt was rejected by a female as either 1 (attempt was rejected at
 least once) or 0 (no rejections from a female). EggNumber - Total number
 of eggs produced by the mated pair. LarvaeNumber - Total number of alive
 larvae (at third instar) produced by the mated pair. HatchingSuccess -
 Percentage of offspring that survived until larval stage, as a value
 between 0 and 1.