The origins of tropical marine biodiversity

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• 作者：Brian W. Bowen¹ ; ^{bbowen@hawaii.edu} ; Luiz A. Rocha² ; Robert J. Toonen¹ ; Stephen A. Karl¹ ; the ToBo Laboratory *
• 关键词：biodiversity feedback ; biogeography ; center of accumulation ; center of speciation ; ecological opportunity ; marine speciation ; phylogeography
• 刊名：Trends in Ecology and Evolution
• 出版年：2013
• 出版时间：June, 2013
• 年：2013
• 卷：28
• 期：6
• 页码：359-366
• 全文大小：3896 K

文摘

Recent phylogeographic studies have overturned three paradigms for the origins of marine biodiversity. (i) Physical (allopatric) isolation is not the sole avenue for marine speciation: many species diverge along ecological boundaries. (ii) Peripheral habitats such as oceanic archipelagos are not evolutionary graveyards: these regions can export biodiversity. (iii) Speciation in marine and terrestrial ecosystems follow similar processes but are not the same: opportunities for allopatric isolation are fewer in the oceans, leaving greater opportunity for speciation along ecological boundaries. Biodiversity hotspots such as the Caribbean Sea and the Indo-Pacific Coral Triangle produce and export species, but can also accumulate biodiversity produced in peripheral habitats. Both hotspots and peripheral ecosystems benefit from this exchange in a process dubbed biodiversity feedback.