Data File for Quantifying Bateman Gradients ;Data File for Quantifying Selection on Male Snout-Vent Length;Data File for Calculating Opportunities for Selection and Sexual Selection ;Data File for Re-Analysis of Copperhead Study;R Code from No evidence of male-biased sexual selection in a snake with conventional Darwinian sex roles

This csv file was used to quantify Bateman gradients for male and female C. atrox. The file includes the following information for each snake: snake identifier (“id”), sex (“sex”), total mating success (“mates”), total reproductive success (“offspring”), and the number of years that the individual bred (“years_breeding”).;This csv file was used to calculate relative reproductive success and mean-standardized SVL for male C. atrox and test for sexual selection and selection on male snout-vent length (SVL). The file includes the following information for each male snake: snake identifier (“Sire”), the year that the snake produced offspring (“Year”), annual reproductive success (“RS”), annual mating success (“MS”), and snout-vent length (“SVL”). ;This csv file was used to calculate annual opportunities for sexual selection (Is) and selection (I) for male and female C. atrox. The file includes the following information for each snake: snake identifier (“ID”), sex (“Sex”), the year that the individual produced offspring (“Year”), annual reproductive success (“RS”), and annual mating success (“MS”).;This csv file contains the published mating and reproductive success data of Levine et al. (2015) for male and female copperheads (Agkistrodon contortrix), including males that both did and did not produce offspring. We used this file to calculate sexual selection metrics for only those males with non-zero mating and reproductive success. The file includes the following information for each snake: sex (“sex”), mating success (“mates”), and reproductive success (“offspring”).;This R Markdown contains code for running all analyses.

本CSV文件用于量化雌雄C. atrox（Crotalus atrox）的贝特曼梯度（Bateman gradients）。该文件为每条蛇记录了以下信息：蛇类标识号（"id"）、性别（"sex"）、总交配成功率（"mates"）、总繁殖成功率（"offspring"）以及该个体参与繁殖的年数（"years_breeding"）；本CSV文件用于计算雄性C. atrox的相对繁殖成功率与均值标准化肛吻长（snout-vent length, SVL），并检验性选择以及雄性肛吻长所受的选择压力。该文件为每条雄性蛇记录了以下信息：蛇类父本标识号（"Sire"）、该蛇产生后代的年份（"Year"）、年度繁殖成功率（"RS"）、年度交配成功率（"MS"）以及肛吻长（snout-vent length, SVL）；本CSV文件用于计算雌雄C. atrox的性选择机会（Is）与选择机会（I）的年度数值。该文件为每条蛇记录了以下信息：蛇类标识号（"ID"）、性别（"Sex"）、该个体产生后代的年份（"Year"）、年度繁殖成功率（"RS"）以及年度交配成功率（"MS"）；本CSV文件包含Levine等人2015年发表的雌雄铜头蝮（Agkistrodon contortrix）的交配与繁殖成功率数据，涵盖了产生后代与未产生后代的雄性个体。本研究仅针对交配与繁殖成功率非零的雄性个体计算性选择指标，所用数据即来源于此文件。该文件为每条蛇记录了以下信息：性别（"sex"）、交配成功率（"mates"）以及繁殖成功率（"offspring"）；本R Markdown文件包含了运行所有分析的代码。