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New migration, new species
Email: Susan Brown - meldahlbrown@hotmail.com News from The Scientist 2005, 6(1):20051021-01
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A population of songbirds that shares summer breeding grounds may be dividing in two based on where they spend their winters, according to a report in this week's Science. European blackcaps that follow a new migratory path tend to mate with each other and reproduce more successfully than birds that stick to the traditional route. This split into two breeding groups could increase the likelihood of the birds forming separate species, the authors note.
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