[Taxacom] subsidence and vicariance in volcanic archipelagos

Michael Heads m.j.heads at gmail.com
Thu Sep 22 15:44:39 CDT 2016

Dear colleague,

Jason Ali has just sent his recent paper on subsidence and vicariance in
the Galapagos (Astronomy and Geophysics 57). I think this an important
mechanism, but the islands don't need to be joined to start with for
vicariance to occur.

In the Hawaiian Islands, Hawaii and Maui were originally 8 km apart, but
following volcanc loading are now 50 km apart. Organisms that could
disperse 8 km and maintain a metapopulation would not necessarily be
able to disperse 50 km, and vicariance could result. Does anyone know of
any papers suggesting this for Hawaii (or any other islands)?

Dunedin, New Zealand.

My books:

*Biogeography and evolution in New Zealand. *Taylor and Francis/CRC, Boca
Raton FL. 2016.

*Biogeography of Australasia:  A molecular analysis*. Cambridge University
Press, Cambridge. 2014. www.cambridge.org/9781107041028

*Molecular panbiogeography of the tropics. *University of California Press,
Berkeley. 2012. www.ucpress.edu/book.php?isbn=9780520271968

*Panbiogeography: Tracking the history of life. Oxford University Press,
New York. *1999*. *(With R. Craw and J. Grehan).

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