Single origin of a pan-Pacific bird group and upstream colonization of Australasia

Christopher E. Filardi () and Robert G. Moyle
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Christopher E. Filardi: American Museum of Natural History
Robert G. Moyle: American Museum of Natural History

Nature, 2005, vol. 438, issue 7065, 216-219

Abstract: Mayr research is needed Biologists have long used islands as natural laboratories for understanding the diversification of life. A conclusion from these studies — notably those of Ernst Mayr — is that life on far-flung archipelagos accumulates from a simple one-way flow of colonists from continents to islands. Filardi and Moyle set out to test this assumption by estimating the relationships of a pan-Pacific bird group, the monarch flycatchers that feature in Mayr's work, through space and time. Their molecular phylogenetic data show that the traditional idea of the islands as stepping stones, with species colonizing Australasia by island-hopping their way across the oceans, does not fit the facts. Instead, the diversity of life across the major Pacific archipelagos is the product of a single radiation involving colonization from islands to continents as well as vice versa.

Date: 2005
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DOI: 10.1038/nature04057

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