Data from: The bold and the sperm: positive association between boldness and sperm number in the guppy

Assessing the consequences of personality traits on reproductive success is one of the most important challenges in personality studies, and critical to understand the evolutionary implications of behavioural variability among animals. Personality traits are typically associated with mating acquisition in males, and, hence, linked to variation in their reproductive success. However, in most species sexual selection continues after mating, and sperm traits (such as sperm number and quality) become very important in determining post-mating competitive success. Here, we investigate whether variation in personality traits is associated to variation in sperm traits using the guppy (Poecilia reticulata), a species with high levels of sperm competition. We found a positive association between boldness and sperm number but not sperm velocity, suggesting that bolder males have increased post-copulatory success than shyer individuals. No association was found between exploration and sperm traits. Our work highlights the importance of considering post-copulatory traits when investigating fitness consequences of personality traits, especially in species with high levels of female multiple matings and hence sperm competition.,Gasparini et al datasetFile and column's names are self-explanatory. Sperm number is reported in millions (10^6) and sperm velocity in micron/second. More details are reported in the MS.,

探究人格特质（personality traits）对繁殖成功率的影响是人格研究领域的核心课题之一，对于理解动物行为变异的进化意义至关重要。人格特质通常与雄性的求偶成功相关，因此与其繁殖成功率的差异挂钩。然而，多数物种的性选择会在交配后仍持续进行，精子特质（sperm traits，如精子数量与质量）进而成为决定交配后竞争成功率的关键因素。本研究以精子竞争水平较高的孔雀鱼（Poecilia reticulata）为研究对象，探究人格特质的变异是否与精子特质的变异存在相关性。
研究结果显示，大胆性与精子数量呈正相关，但与精子运动速度无显著关联，这表明相较于羞怯的雄性，更大胆的雄性拥有更高的交配后繁殖成功率。探索性与精子特质则未发现显著关联。
本研究强调，在探究人格特质对适合度的影响时，需重视交配后相关特质的考量，尤其适用于雌性多次交配进而导致精子竞争激烈的物种。——Gasparini等人数据集
数据集文件与列名均一目了然。精子数量以百万（10^6）为单位，精子运动速度以微米/秒为单位。详细信息详见MS（手稿）。