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Nature 400, 311-312 (22 July 1999) | doi:10.1038/22419
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Speciation without isolation
Tom Tregenza1 & Roger K. Butlin1
There is abundant evidence that new species can arise when a population of organisms is split into isolated elements. The occurrence of sympatric speciation — speciation without isolation — is much more contentious but is now set on firmer theoretical ground.
- Tom Tregenza and Roger K. Butlin are in the Ecology and Evolution Programme, School of Biology, University of Leeds, Leeds LS2 9JT, UK.
e-mail: Email: gentbt@gps.leeds.ac.uk
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