Demography and environment modulate the effects of genetic diversity on extinction risk in a butterfly metapopulation

Linking genetic diversity to extinction is a common goal in genomic studies. Recently, a debate has arisen regarding the importance of genetic variation in conservation as some studies have failed to find associations between genome-wide genetic diversity and extinction risk. However, only rarely are genetic diversity and fitness measured together in the wild, and typically demographic history and environment are ignored. It is therefore difficult to infer whether a lack of an association is real or obscured by confounding factors. To address these shortcomings, we analysed genetic data from 7,501 individuals with extinction data from 279 meadows and mortality of 1,742 larval nests in a butterfly metapopulation. We found a strong negative association between genetic diversity and extinction when considering only heterozygosity in models. However, this association disappeared when accounting for ecological covariates, suggesting a confounding between demography and genetics and a more co..., , , This README file was generated on 2024-03-21 by Michelle DiLeo.

GENERAL INFORMATION

1. Title of Dataset: Demography and environment modulate the effects of genetic diversity on extinction risk in a butterfly metapopulation
2. Author Information
A. Principal Investigator Contact Information
Name: Marjo Saastamoinen
Institution: University of Helsinki
Address: Helsinki, FI
Email: [[e-mail]](mailto:[e-mail])

B. Associate or Co-investigator Contact Information
Name: Michelle DiLeo
Institution: Ontario Ministry of Natural Resources
Address: Peterborough, ON Canada
Email: [[e-mail]](mailto:[e-mail])
3. Date of data collection (single date, range, approximate date): 2007-2012
4. Geographic location of data collection: Aland Islands, Finland
5. Information about funding sources that supported the collection of the data: Academy of Finland, Natural Sciences and Engineering Council of Ca...

在基因组学研究中，探究遗传多样性与灭绝事件的关联是一类常见研究目标。近年来，保护生物学领域关于遗传变异重要性的讨论引发争议：部分研究未能在全基因组遗传多样性与灭绝风险之间发现显著关联。然而，野外环境中同时测定遗传多样性与适合度的案例极为罕见，且种群历史与环境因素常被忽视。因此，难以判断关联缺失是真实存在，还是受混杂因素掩盖所致。为解决上述研究缺陷，本研究针对某蝴蝶集合种群（metapopulation）的遗传数据（涵盖7501个个体）、279块草地的灭绝数据以及1742个幼虫巢的死亡率数据开展分析。仅在模型中纳入杂合度（heterozygosity）时，我们发现遗传多样性与灭绝事件存在显著负相关；但当纳入生态协变量后，该关联消失，提示种群统计学与遗传学之间存在混杂效应，且更……。本README文件由Michelle DiLeo于2024年3月21日生成。

### 一般信息
1. 数据集标题：种群统计学与环境调控蝴蝶集合种群（metapopulation）中遗传多样性对灭绝风险的作用
2. 作者信息
A. 主要研究者联系方式
姓名：Marjo Saastamoinen
所属机构：赫尔辛基大学（University of Helsinki）
地址：芬兰赫尔辛基
邮箱：[[e-mail]](mailto:[e-mail])
B. 副研究者或联合研究者联系方式
姓名：Michelle DiLeo
所属机构：安大略省自然资源部（Ontario Ministry of Natural Resources）
地址：加拿大安大略省彼得伯勒
邮箱：[[e-mail]](mailto:[e-mail])
3. 数据收集日期：2007-2012年
4. 数据收集地理位置：芬兰奥兰群岛（Aland Islands）
5. 支持本数据收集的经费来源：芬兰科学院（Academy of Finland）、加拿大自然科学与工程研究理事会（Natural Sciences and Engineering Council of Ca...）