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首页> 外文期刊>Ostrich >Bioacoustical structure and possible functional significance of wing display vocalisation during courtship of the African Orange-bellied Parrot poicephalus rufiventris
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Bioacoustical structure and possible functional significance of wing display vocalisation during courtship of the African Orange-bellied Parrot poicephalus rufiventris

机译：非洲橙腹鹦鹉poicephalus rufiventris求爱期间机翼显示发声的生物声学结构和可能的功能意义

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We report here on a bioacoustical and contextual analysis of Orange-bellied Parrot vocalisations recorded in Tarangire National Park, Tanzania. We analysed a total of 154 vocalizations of which 110 were simple calls pertaining to five different types (A and B contact calls, whistle, flight call, and trill call) while 44 were complex calls (wing stretching and wing display songs) totalling three minutes of record. All simple calls examined appeared to be shorter than one second and sexually dimorphic. In addition, the longest and most structured vocalisations lasting 1-5 sec, wing stretching and wing display courtship song, appeared to be complex bioacoustic products in which a number of shorter units used by birds in completely different contexts may be recognised. It is argued that this assemblage of simple calls into a courtship song may have been important in the evolution of parrot mimicry for the search of social contact.
机译：我们在这里报告了坦桑尼亚塔兰吉雷国家公园记录的橙腹鹦鹉发声的生物声学和背景分析。我们分析了总共154个发声，其中110个是简单的呼叫，涉及五种不同的类型（A和B联系人呼叫，吹口哨，航班呼叫和颤音呼叫），而44个是复杂的呼叫（机翼伸展和机翼显示歌曲），总计三分钟记录。所有检查过的简单电话似乎都短于一秒钟，并且具有两性性。此外，持续时间为1-5秒的最长，最结构化的发声，机翼伸展和机翼展示求爱歌曲似乎是复杂的生物声学产品，其中可以识别出鸟类在完全不同的环境中使用的许多较短的单位。有人认为，简单地将求助电话组合成求爱歌曲可能对模仿鹦鹉以寻求社会交往的发展很重要。

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