a passerine birds evolution corroborates the geologic history of the island of new guinea雀形目鸟鸟的进化观点的新几内亚岛的地质史.pdfVIP

A Passerine Bird’s Evolution Corroborates the Geologic History of the Island of New Guinea 1,2 3 4 5 1,5 Kristy Deiner *, Alan R. Lemmon , Andrew L. Mack , Robert C. Fleischer , John P. Dumbacher 1 Department of Vertebrate Zoology and Anthropology and Center for Comparative Genomics, California Academy of Sciences, San Francisco, California, United States of America, 2 Genomic Variation Lab, University of California Davis, Davis, California, United States of America, 3 Department of Scientific Computing, Florida State University, Tallahassee, Florida, United States of America, 4 Powdermill Nature Reserve, Carnegie Museum of Natural History, Pittsburgh, Pennsylvania, United States of America, 5 Center for Conservation and Evolutionary Genetics, National Zoological Park, Smithsonian Institution, Washington, D.C., United States of America Abstract New Guinea is a biologically diverse island, with a unique geologic history and topography that has likely played a role in the evolution of species. Few island-wide studies, however, have examined the phylogeographic history of lowland species. The objective of this study was to examine patterns of phylogeographic variation of a common and widespread New Guinean bird species (Colluricincla megarhyncha). Specifically, we test the mechanisms hypothesized to cause geographic and genetic variation (e.g., vicariance, isolation by distance and founder-effect with dispersal). To accomplish this, we surveyed three regions of the mitochondrial genome and a nuclear intron and assessed differences among 23 of the 30 described subspecies from throughout their range. We found support for eight highly divergent lineages within C. megarhyncha. Geneti