Modes of speciation: marine Indo-West Pacific
Briggs, J.C. (1999). Modes of speciation: marine Indo-West Pacific. Bull. Mar. Sci. 65(3): 645-656
In: Bulletin of Marine Science. University of Miami Press: Coral Gables. ISSN 0007-4977; e-ISSN 1553-6955, meer
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| Abstract |
Within the Indo-West Pacific, the East Indies exhibits the greatest species richness in the marine world and may also be functioning as a center of evolutionary radiation. Both kinds of allopatric speciation, vicarianism and dispersal, clearly take place. The parapatric mode of speciation occurs among planktonic organisms and along continuous shorelines. Judging from the biogeography of sibling species, sympatric (competitive) speciation is surprisingly common. It may occur in the majority of benthic invertebrates. Among the fishes, sibling patterns suggest that sympatric speciation is taking place in the East Indiesand that newly formed species may be dispersing from that area. Studies of geographic patterns that are produced as the result of speciation can help elucidate the underlying evolutionary process. |
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