Extreme Endemic Radiation of the Malagasy Vangas (Aves: Passeriformes) |
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| Authors: | Satoshi Yamagishi Masanao Honda Kazuhiro Eguchi Russel Thorstrom |
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| Institution: | (1) Department of Zoology, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan, JP;(2) Department of Biology, Faculty of Science, Kyushu University, Higashi, Fukuoka 812-8581, Japan, JP;(3) Wild Center for Birds of Prey, 5666 West Flying Hawk Lane Boise, ID 83709, USA, US |
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| Abstract: | Phylogenetic relationships of the family Vangidae and representatives of several other passeriform families were inferred
from 882 base positions of mitochondrial DNA sequences of 12S and 16S rRNA genes. Results indicated the monophyly of the Vangidae,
which includes the genus Tylas, hitherto often placed in the family Pycnonotidae. Our results also revealed the Malagasy endemic Newtonia, a genus never previously assigned to the Vangidae, to be a member of this family. These results suggest the occurrence of
an extensive in situ radiation of this family within Madagascar, and that the extant high diversity of this family is not the result of multiple
colonizations from outside. The extremely high morphological and ecological diversification of the family seems to have been
enhanced through the use and ultimate occupancy of vacant niches in this island.
Received: 8 September 2000 / Accepted: 13 February 2001 |
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| Keywords: | : 12S rRNA — 16S rRNA — Phylogeny — Passeriformes — Oscines — Vangidae — Madagascar |
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