Correlations for each regime across our entire parameter space.

Correlations between log mean brain size, log mean adaptive knowledge, log mean group size, mean social learning, and mean juvenile period with 95% confidence intervals in brackets. The table has been color coded from red (r = −1) to white (r = 0) to blue (r = 1) for ease of comprehension. The upper table has correlations across the entire parameter space. The lower table has primarily asocial learners (s < .5) in the bottom triangle and primarily social learners (s > .5) in the top triangle. Following the empirical literature, social learning is defined as the number of observed incidents of social learning. Thus, we multiplied s by mean group size (N), and then following the empirical work, added 3, and took the natural log [46]. The juvenile period is defined as the probability of socially learning in a second round of learning (sv). Higher sv values should demand a longer juvenile period.

本数据集呈现了对数平均脑容量（log mean brain size）、对数平均适应性知识（log mean adaptive knowledge）、对数平均群体规模（log mean group size）、平均社会学习（mean social learning）以及平均幼年期（mean juvenile period）之间的相关性，各指标的95%置信区间标注于括号内。为便于理解，本表格采用了从红色（r = −1）到白色（r = 0）再到蓝色（r = 1）的色彩编码方案。上方表格展示了全参数空间下的全部相关性结果；下方表格的下三角区域主要对应s < 0.5的非社会学习者（asocial learners），上三角区域则主要对应s > 0.5的社会学习者（social learners）。参考现有实证研究，社会学习被定义为观测到的社会学习事件次数。据此，我们将参数s与平均群体规模（N）相乘，随后参照实证研究惯例加3，并对结果取自然对数[46]。幼年期被定义为在第二轮学习中完成社会学习的概率（sv），sv值越高，则所需的幼年期越长。