北苍鹰古北和新北极种群的分类地位(鸟,苍鹰科):来自发声的新证据

IF 2.4 2区 生物学 Q1 ZOOLOGY
G. Sangster
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引用次数: 2

摘要

最近的分子研究对北苍鹰在北美和欧亚种群的分类地位提出了质疑,表明需要进一步的分类研究。长期以来,叫声在诊断潜在的生殖隔离鸟类群体方面一直发挥着重要作用。真草的啁啾式叫声具有广告和配对接触的作用,为发声的分类研究提供了合适的依据。该数据集包括75只欧亚金翅鸟群、37只北美金翅鸟群和7只亨斯特苍鹰的叫声记录。这三组在呼叫音符的持续时间上表现出不重叠的变化,并且还表现出其他一些高度显著的差异。判别函数分析结果100%正确地将录音分类为三组。本文认为,新的生物声学数据,结合欧亚苍鹰和北美苍鹰之间形态、线粒体DNA和基因组DNA差异的先前证据,表明两个物种最容易被识别:北方苍鹰A. gentilis和美洲苍鹰A. atricapillus。a . gentilis / a . atricapillus加入了越来越多的全北极温带分类群,这些分类群最近被认为是独立的物种,这是基于欧亚和北美种群之间的深层系统地理分裂以及其他特征的差异。这是对棘螨科鸣叫的首次定量分类学研究。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The taxonomic status of Palearctic and Nearctic populations of northern goshawk Accipiter gentilis (Aves, Accipitridae): New evidence from vocalisations
The taxonomic status of the North American and Eurasian populations of northern goshawk A. gentilis has been called into question by recent molecular studies, indicating the need for additional taxonomic study. Vocalisations have long played an important role in diagnosing potentially reproductively isolated groups of birds. The chattering-type call of A. gentilis plays a role in advertisement and pair-contact, making this a suitable basis for taxonomic study of vocalisations. The data set consisted of recordings of the calls of 75 individuals of the Eurasian gentilis-group of A. gentilis, 37 of the North American atricapillus-group of A. gentilis and, for comparison, seven of Henst’s goshawk A. henstii. The three groups showed non-overlapping variation in the duration of call-notes and also showed several other highly significant differences. Discriminant Function Analysis resulted in 100% correct classification of recordings into the three groups. It is here argued that the new bioacoustic data, in combination with previous evidence of morphological, mitochondrial DNA and genomic DNA differences between Eurasian and North American A. gentilis, suggests that two species are best recognised: northern goshawk A. gentilis and American goshawk A. atricapillus. A. gentilis / A. atricapillus add to a growing list of Holarctic temperate zone taxa that have recently been recognised as separate species based on a deep phylogeographic split between Eurasian and North American populations in combination with differences in other characters. This is the first quantitative taxonomic study of vocalisations in Accipitridae.
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来源期刊
CiteScore
4.00
自引率
19.00%
发文量
42
审稿时长
>12 weeks
期刊介绍: Research fields covered by VERTEBRATE ZOOLOGY are ta‍xo‍no‍my, mor‍pho‍logy, an‍at‍omy, phy‍lo‍ge‍ny (mo‍le‍cu‍lar and mor‍pho‍lo‍gy-based), hi‍sto‍ri‍cal bio‍geo‍gra‍phy, and pa‍lae‍on‍to‍lo‍gy of ver‍te‍bra‍tes.
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