A trait-based approach to predict population genetic structure in bees

Understanding population genetic structure is key to developing predictions about species susceptibility to environmental change, such as habitat fragmentation and climate change. It has been theorized that life-history traits may constrain some species in their dispersal and lead to greater signatures of population genetic structure. In this study, we use a quantitative comparative approach to assess if patterns of population genetic structure in bees are driven by three key species-level life-history traits: body size, sociality, and diet breadth. Specifically, we reviewed the current literature on bee population genetic structure, as measured by the differentiation indices Nei’s GST, Hedrick’s G`ST, and Jost’s D. We then used phylogenetic generalised linear models to estimate the correlation between the evolution of these traits and patterns of genetic differentiation. Our analyses revealed a negative and significant effect of body size on genetic structure, regardless of differentia...

解析种群遗传结构，是预测物种对生境破碎化、气候变化等环境变化敏感性的核心前提。已有理论提出，生活史特征可能限制部分物种的扩散能力，进而使其种群遗传结构的信号更为显著。本研究采用定量比较分析方法，探究蜂类的种群遗传结构模式是否受三类关键物种水平生活史特征调控：体型大小、社会性以及食性宽度。具体而言，我们系统梳理了当前关于蜂类种群遗传结构的相关文献，其遗传分化程度通过Nei’s GST、Hedrick’s G`ST以及Jost’s D三类分化指数进行量化。随后，我们借助系统发育广义线性模型（phylogenetic generalised linear models），评估了这些生活史特征的演化与遗传分化模式之间的相关性。本研究的分析结果显示，体型大小对种群遗传结构具有显著的负向影响，且不受分化...