Global diversity gradients have been extensively investigated for several biological groups. However, little is known whether the diversity drivers of clades that underwent major environmental transition (e.g., from land to sea) are equivalent across these different environmental settings. Here, we ask if the pattern of diversity of marine elapid snakes is determined by factors analogous to those previously found for terrestrial lineages. Through a model selection framework, we compare the effect of factors that represent five ecological and historical hypotheses. We found that both ecological and historical factors play significant roles, but habitat structure, which can be linked to historical climatic changes, was better supported. This result agrees with that previously found for terrestrial elapids, despite the different environmental pressures in terrestrial and marine contexts. Our findings suggest an equivalence of the underlying process of diversity gradient within the same lineage from land and sea, irrespective of the different physiological, spatial and historical constraints.

中文翻译：

---

海洋弹性蛇全球多样性梯度的生态和历史遗产

全球多样性梯度已被广泛研究了几个生物群体。然而，鲜为人知的是，经历了重大环境转变（例如，从陆地到海洋）的进化枝的多样性驱动力在这些不同的环境背景下是否等效。在这里，我们问是否海洋弹性蛇的多样性模式是由类似于先前为陆生世系发现的因素决定的。通过模型选择框架，我们比较了代表五个生态和历史假设的因素的影响。我们发现，生态和历史因素都起着重要作用，但与历史气候变化有关的栖息地结构得到了更好的支持。这个结果与先前发现的地面弹性体相符，尽管在陆地和海洋环境中存在不同的环境压力。我们的研究结果表明，无论来自不同的生理，空间和历史约束，来自陆地和海洋的同一谱系内多样性梯度的潜在过程都是等效的。