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Brief Communications
Nature 439, 409 (26 January 2006) | doi:10.1038/439409a; Received 2 August 2005; Accepted 22 December 2005; Published online 25 January 2006
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Biogeography: Molecular trails from hitch-hiking snails
Edmund Gittenberger1,2, Dick S. J. Groenenberg1, Bas Kokshoorn2 & Richard C. Preece3
Abstract
Migrating birds may have transported the Balea land snail across vast distances to remote islands.
Abstract
Darwin was fascinated by the transportation of land snails across great swathes of open ocean by birds — he even immersed snails in sea water to see how long they would survive1. Here we follow a molecular phylogenetic trail that reveals the incredible transequatorial dispersal of the land snail Balea from Europe to the Azores and the Tristan da Cunha islands, and back again. This long-distance dispersal is unexpected for what are proverbially considered the most pedestrian of creatures.
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