Digest: Drivers of coral diversification in a major marine biodiversity hotspot
Coral reefs are of great ecological importance to marine ecosystems, yet their origins are still poorly understood. Using a robust phylogenetic framework, Huang et al. (2017) show that most diversity within the Indo-Pacific Coral Triangle region is driven by range expansions of lineages from outside the region, rather than rapid diversification within. This highlights the need for macroevolutionary studies to fully understand species assemblages in biodiversity hotspots, and the potential importance of adjacent areas for conservation.
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