Abstract

Modern-day Indo-Pacific coral reefs are characterized by rapid recovery driven by pulses of coral recruitment, but Caribbean reefs exhibit low rates of recruitment and poor recovery following a wide range of disturbance events. The contrasting evolutionary history of coral taxa offers key insight into biogeographic patterns of coral resilience. Following the closure of the Isthmus of Panama approximately 2.8 million years ago, widespread extinction of Caribbean corals led to an evolutionary bottleneck that favored large and long-lived species with a relatively high reliance on asexual versus sexual reproduction. In contrast, adaptive radiation led to the evolution of superrecruiting tabular, digitate, and corymbose corals that drive the rapid recovery of modern-day Indo-Pacific reefs following disturbance. The dominance of branching growth forms and evolutionary absence of superrecruiting growth forms throughout the entire evolutionary history of the Caribbean (approximately 38 million years ago to present) may explain the exceptionally high recruitment rates on modern-day Indo-Pacific reefs and low historical recruitment on Caribbean reefs. The evolutionary history of the Caribbean coral reef-building taxa implies that, even with a reversal of ecosystem state, widespread recovery of Caribbean reefs may be limited.

中文翻译：

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进化史驱动珊瑚礁复原力的生物地理格局

摘要

现代印度洋-太平洋珊瑚礁的特征是珊瑚的涌入推动了珊瑚礁的快速恢复，但是加勒比海礁石的吸收率低，并且在发生一系列干扰事件后恢复较差。珊瑚类群的进化史形成鲜明对比，提供了有关珊瑚复原力生物地理模式的关键见识。在大约280万年前的巴拿马地峡关闭之后，加勒比海珊瑚的广泛灭绝导致了进化瓶颈，该瓶颈偏向于对无性繁殖与有性繁殖相对较高依赖的大型长寿物种。相反，适应性辐射导致超级招募的板状，指状和ate状珊瑚的进化，这些珊瑚驱使现代印度洋-太平洋礁石在受到干扰后迅速恢复。在整个加勒比海的整个演化历史中（大约3800万年前至今），分支生长形式的主导地位和超招聘形式的进化上的缺乏可能解释了现代印度太平洋礁石上的招募率极高，而印度太平洋上的礁石招募率却很低。加勒比礁。加勒比珊瑚礁建设类群的进化历史表明，即使生态系统状况发生逆转，加勒比珊瑚礁的广泛恢复也可能受到限制。