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Nature. 2006 Dec 7;444(7120):E12-3; discussion E13.

Evolutionary biology: evidence for sympatric speciation?

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1
Bavarian State Collection of Zoology, 81247 M√ľnchen, Germany. schliewen@zsm.mwn.de

Abstract

Sympatric speciation is difficult to demonstrate in nature and remains a hotly debated issue. Barluenga et al. present a case of putative sympatric speciation for two cichlid species in the Nicaraguan crater lake Apoyo, but they overlook or reinterpret some key published information on the system. Although sympatric speciation is possible in theory, we show here that, when this information is taken into account, the results of Barluenga et al. do not provide conclusive evidence for sympatric speciation: this is because the null hypothesis of multiple invasion with introgression cannot be rejected.

PMID:
17151605
DOI:
10.1038/nature05419
[Indexed for MEDLINE]
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