School of Marine and Tropical Biology, and Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, QLD, Australia.
J Evol Biol. 2011 Dec;24(12):2543-62. doi: 10.1111/j.1420-9101.2011.02391.x. Epub 2011 Oct 10.
Diversification rates within four conspicuous coral reef fish families (Labridae, Chaetodontidae, Pomacentridae and Apogonidae) were estimated using Bayesian inference. Lineage through time plots revealed a possible late Eocene/early Oligocene cryptic extinction event coinciding with the collapse of the ancestral Tethyan/Arabian hotspot. Rates of diversification analysis revealed elevated cladogenesis in all families in the Oligocene/Miocene. Throughout the Miocene, lineages with a high percentage of coral reef-associated taxa display significantly higher net diversification rates than expected. The development of a complex mosaic of reef habitats in the Indo-Australian Archipelago (IAA) during the Oligocene/Miocene appears to have been a significant driver of cladogenesis. Patterns of diversification suggest that coral reefs acted as a refuge from high extinction, as reef taxa are able to sustain diversification at high extinction rates. The IAA appears to support both cladogenesis and survival in associated lineages, laying the foundation for the recent IAA marine biodiversity hotspot.
采用贝叶斯推断估计了四个显著的珊瑚礁鱼类科（隆头鱼科、雀鲷科、刺盖鱼科和天竺鲷科）的多样化速率。时线图揭示了可能与古特提斯/阿拉伯热点崩溃同时发生的晚始新世/早渐新世隐生灭绝事件。多样化速率分析显示，所有科在渐新世/中新世都有较高的分支速率。在整个中新世，与珊瑚礁相关的分类群比例较高的谱系显示出比预期更高的净多样化速率。在渐新世/中新世期间，印度-澳大利亚群岛（IAA）中复杂的珊瑚礁生境镶嵌体的发展似乎是分支发生的一个重要驱动因素。多样化模式表明，珊瑚礁作为高灭绝的避难所，因为珊瑚礁分类群能够在高灭绝率下维持多样化。IAA 似乎支持相关谱系的分支发生和生存，为最近的 IAA 海洋生物多样性热点奠定了基础。
