文章基本信息

标题：On the historical biogeography of global Galliformes: ancestral range and diversification patterns
本地全文：下载
作者：Youhua Chen
期刊名称：Avian Research
印刷版ISSN：2053-7166
出版年度：2014
卷号：5
期号：1
页码：3
DOI：10.1186/s40657-014-0003-9
语种：English
出版社：BioMed Central
摘要：In this study, the ancestral distributional ranges and the tempo of diversification patterns of global Galliformes were investigated. Different diversification models characterizing possible tempo patterns were fitted and compared onto the phylogenetic tree for the 197 Galliforme species, consisting of a constant-speciation and constant-extinction model (CONSTANT), a decreasing-speciation and constant-extinction model (SPVAR), a constant-speciation and increasing-extinction model (EXVAR) and a decreasing-speciation and increasing-extinction model (BOTHVAR). Ancestral range reconstruction was conducted using the dispersal-extinction-cladogenesis model. A constant-diversification-rate (CONSTANT) model best quantified the historical speciation patterns of this avian assemblage through model selection. Clade age and species richness are significantly and positively correlated. The most recent common ancestor for Galliformes species was originally found in the disjunctive regions between Southeast Asia and North America. High-frequency dispersal events were identified across the whole evolutionary time. The constant diversification rate for global Galliforme species implied that there were no diversification rate-shifting trends for Galliformes species. The present study may contribute to the understanding of the ecology and diversity patterns of Galliformes from the perspective of historical biogeography, although some limitations existed.
关键词：Game birds ; Macro-evolution ; Rate shifting ; Zoogeography ; Phylogenetics