Many clades display the macroevolutionary pattern of a negative relationship between standing diversity and diversification rates. Competition among species has been proposed as the main mechanism that explains this pattern. However, we currently lack empirical insight into how the effects of individual‐level ecological interactions scale up to affect species diversification. Here, we investigate a clade that shows evidence for negative diversity‐dependent diversification in the fossil record and test whether the clade's modern communities show a corresponding signal of interspecific competition.

中文翻译：

---

浮游有孔虫化石与现代物种之间竞争强度的不匹配

许多进化枝显示了站立多样性和多样化率之间负相关的宏观进化模式。已经提出物种间的竞争作为解释这种模式的主要机制。但是，我们目前缺乏对个体级生态相互作用的影响如何扩大以影响物种多样化的经验性见解。在这里，我们调查了一个进化枝，它在化石记录中显示出负的依赖多样性的多样性证据，并检验了进化枝的现代群落是否显示出种间竞争的相应信号。