The origins of tropical marine biodiversity
In: Trends in Ecology and Evolution. Elsevier Science: Amsterdam. ISSN 0169-5347; e-ISSN 1872-8383, more
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| Keywords |
Biodiversity
Environments > Tropical environment
Marine/Coastal |
| Author keywords |
biodiversity feedback; biogeography; center of accumulation; center ofspeciation; ecological opportunity; marine speciation; phylogeography. |
| Authors | | Top |
- Bowen, B.W.
- Rocha, L.A.
- Toonen, R.J.
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- Karl, S.A.
- ToBo Laboratory
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| 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. |
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