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Trends Ecol Evol. 2013 Jun;28(6):359-66. doi: 10.1016/j.tree.2013.01.018. Epub 2013 Feb 28.

The origins of tropical marine biodiversity.

Author information

1
Hawaii Institute of Marine Biology, School of Ocean and Earth Science and Technology, University of Hawaii, Kaneohe, HI 96744, USA. bbowen@hawaii.edu

Abstract

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.

PMID:
23453048
DOI:
10.1016/j.tree.2013.01.018
[Indexed for MEDLINE]

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