Rheindt Frank E, Christidis Les, Norman Janette A, Eaton James A, Sadanandan Keren R, Schodde Richard
Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore 117543.
Zootaxa. 2017 Apr 7;4250(5):401-433. doi: 10.11646/zootaxa.4250.5.1.
White-bellied swiftlets of the Collocalia esculenta complex constitute a radiation of colony-breeding swifts distributed throughout the tropical Indo-Pacific region. Resolution of their taxonomy is challenging due to their morphological uniformity. To analyze the evolutionary history of this complex, we combine new biometric measurements and results from plumage assessment of museum specimens with novel as well as previously published molecular data. Together, this body of information constitutes the largest systematic dataset for white-bellied swiftlets yet compiled, drawn from 809 individuals belonging to 32 taxa for which new molecular, biometric, and/or plumage data are presented. We propose changing the classification of white-bellied swiftlets, for which two species are currently recognized, to elevate eight regional forms to species level, and we also describe two new subspecies. The ten taxa we recommend recognizing at the species level are: Collocalia linchi (Java to Lombok, Sumatran hills), C. dodgei (montane Borneo), C. natalis (Christmas Island), C. affinis (Greater Sundas, including the Thai-Malay Peninsula and Andaman-Nicobar Islands), C. marginata (Philippines), C. isonota (Philippines), C. sumbawae (west Lesser Sundas), C. neglecta (east Lesser Sundas), C. esculenta (Sulawesi, Moluccas, New Guinea, Bismarck Archipelago, Solomon Islands), and C. uropygialis (Vanuatu, New Caledonia). Future molecular and morphological work is needed to resolve questions of speciation and population affinities in the Philippines, Christmas Island, Wallacea and central Melanesia, and to shed light on historic diversification and patterns of gene flow in the complex.
白腹金丝燕属（Collocalia esculenta复合种）的白腹金丝燕是一类集群繁殖的雨燕，分布于热带印度洋 - 太平洋地区。由于其形态特征较为一致，解决它们的分类问题具有挑战性。为了分析这个复合种的进化历史，我们将新的生物测量数据以及博物馆标本的羽色评估结果与新的和先前发表的分子数据相结合。这些信息共同构成了迄今汇编的关于白腹金丝燕的最大系统数据集，该数据集来自809个个体，分属于32个分类单元，我们为这些分类单元提供了新的分子、生物测量和/或羽色数据。我们建议对白腹金丝燕的分类进行更改，目前白腹金丝燕被认可为两个物种，我们将八个地区形态提升到物种水平，并且我们还描述了两个新亚种。我们建议在物种水平上认可的十个分类单元是：林氏金丝燕（Collocalia linchi，分布于爪哇至龙目岛、苏门答腊山区）、道氏金丝燕（C. dodgei，婆罗洲山区）、纳氏金丝燕（C. natalis，圣诞岛）、近缘金丝燕（C. affinis，大巽他群岛，包括泰国 - 马来西亚半岛和安达曼 - 尼科巴群岛）、缘领金丝燕（C. marginata，菲律宾）、异色金丝燕（C. isonota，菲律宾）、松巴哇金丝燕（C. sumbawae，小巽他群岛西部）、疏忽金丝燕（C. neglecta，小巽他群岛东部）、白腹金丝燕（C. esculenta，苏拉威西岛、摩鹿加群岛、新几内亚、俾斯麦群岛、所罗门群岛）和尾羽金丝燕（C. uropygialis，瓦努阿图、新喀里多尼亚）。未来需要开展分子和形态学研究，以解决菲律宾、圣诞岛、华莱士区和中美拉尼西亚的物种形成和种群亲缘关系问题，并阐明该复合种的历史多样化和基因流动模式。
