Anisogamy and the Darwin-Bateman paradigm

The Darwin-Bateman paradigm advanced as the central concept to explain the evolutionary origin of sex differences. However, debates regarding its theoretical underpinnings persist, particularly with respect to the role of anisogamy in sexual selection. The theoretical work presented by Lehtonen and Parker (2024) suggests that the initial split in gamete production rate drives sex differences in sexual selection but that any further variation in the degree of anisogamy is not expected to alter the strength of sexual selection in males and females. Here, I discuss the historical background of a recently emerged controversy and present empirical data that corroborate the theoretical predictions. Lehtonen and Parker’s contribution refines our understanding of the Darwin-Bateman paradigm by providing a broad theory for large-scale patterns of sex differences that can be observed in nature. Further understanding of how demographic and environmental factors influence sexual selection is essent..., This dataset combines information obtained from two pervious studies:
Mokos, J., Scheuring, I., Liker, A., Freckleton, R.P. & Székely, T. (2021) Degree of anisogamy is unrelated to the intensity of sexual selection. Scientific Reports, 11, 19424.
Janicke, T., Häderer, I.K., Lajeunesse, M.J. & Anthes, N. (2016) Darwinian sex roles confirmed across the animal kingdom. Science Advances, 2, e1500983.
Only the Bateman gradient data can be published here. Data on gametic investment bias (GIB) and gametic size bias (GSB) can be requested from the author of this article or from the authors of Mokos et al. (2021)., , # Data from: Anisogamy and the Darwin-Bateman paradigm

[https://doi.org/10.5061/dryad.z8w9ghxnr](https://doi.org/10.5061/dryad.z8w9ghxnr)

The dataset combines previously published data by Janicke et al. (2016) and Mokos et al. (2021). Files include one data file containing estimates of Bateman gradients (Janicke_2024_Dataset_A.csv), the phylogeny of all sampled species in NEWICK format (Janicke_2024_Phylogeny.nwk) and the R script (Janicke_2024_RScript.R) used to run the meta-analysis.

## Description of the data and file structure

The data file 'Janicke*_*2024_Dataset_A.csv' contains the following variables:

Obs_ID: Observation identifier

Study_ID: Study identifier

Species_Phylo: Species name

Male_r: Pearson correlation coefficient of male Bateman gradient

Male_r_var: Sampling variance of Male_r

Female_r: Pearson correlation coefficient of female Bateman gradient

Female_r_var: Sampling variance of Female_r

Data on Gametic investment bias (GIB) and Gamete size bias (GSB) can...

达尔文-贝特曼范式（Darwin-Bateman paradigm）曾被作为解释性别差异进化起源的核心概念。然而，围绕其理论基础的争议始终存在，尤其是关于配子异型（anisogamy）在性选择（sexual selection）中的作用这一议题。
莱托宁与帕克（Lehtonen and Parker, 2024）提出的理论研究表明，配子产生速率的初始分化驱动了性选择中的性别差异，但配子异型程度的进一步变化，并不会改变雌雄个体间性选择的强度。
本文探讨了近期出现的相关争议的历史背景，并展示了佐证上述理论预测的实证数据。莱托宁与帕克的研究成果为自然界中可观测到的大规模性别差异模式提供了普适性理论，从而深化了我们对达尔文-贝特曼范式的认知。进一步理解种群统计与环境因素如何影响性选择至关重要……

本数据集整合了两项既往研究的数据：
莫科斯等人（Mokos et al., 2021）的研究《配子异型程度与性选择强度无关》（Degree of anisogamy is unrelated to the intensity of sexual selection）发表于《科学报告》（Scientific Reports），11卷，19424页。
亚尼凯等人（Janicke et al., 2016）的研究《动物界普遍存在的达尔文式性别角色》（Darwinian sex roles confirmed across the animal kingdom）发表于《科学·进展》（Science Advances），2卷，e1500983。
本数据集仅可公开贝特曼梯度（Bateman gradient）相关数据。配子投入偏差（GIB）与配子大小偏差（GSB）相关数据可向本文通讯作者或莫科斯等人（2021）的作者团队申请获取。

# 数据集来源：配子异型与达尔文-贝特曼范式
[https://doi.org/10.5061/dryad.z8w9ghxnr](https://doi.org/10.5061/dryad.z8w9ghxnr)

本数据集整合了亚尼凯等人（2016）与莫科斯等人（2021）已发表的公开数据。数据集包含以下文件：包含贝特曼梯度估算值的数据文件`Janicke_2024_Dataset_A.csv`、以NEWICK格式存储的所有采样物种的系统发育树`Janicke_2024_Phylogeny.nwk`，以及用于开展元分析的R脚本`Janicke_2024_RScript.R`。

## 数据与文件结构说明
数据文件`Janicke_2024_Dataset_A.csv`包含以下变量：
Obs_ID：观测标识符
Study_ID：研究标识符
Species_Phylo：物种名称
Male_r：雄性贝特曼梯度的皮尔逊相关系数
Male_r_var：Male_r的抽样方差
Female_r：雌性贝特曼梯度的皮尔逊相关系数
Female_r_var：Female_r的抽样方差
配子投入偏差（GIB）与配子大小偏差（GSB）相关数据可……