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首页> 外文期刊>Ethology >Individual Signature in a Lekking Species: Visual and Acoustic Courtship Parameters May Help Discriminating Conspecifics in the Houbara Bustard
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Individual Signature in a Lekking Species: Visual and Acoustic Courtship Parameters May Help Discriminating Conspecifics in the Houbara Bustard

机译：迁徙物种的个体签名：视觉和声学求偶参数可能有助于区分Houbara Bus中的物种

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摘要

Selection pressures acting on both intrasexual competition and intersexual relationships may lead to the emphasis of individual variation and might thus lead to the expression of individual signature. This is particularly true in lek mating systems, where providing information on identity and/or quality to potential mates or congeners of the same sex can be essential for individuals to optimize their reproductive success. Visual and acoustic signals produced during the courtship of the lekking North African Houbara bustard (Chlamydotis undulata undulata), based on field data from wild birds, are investigated here for the first time. Results show that the vocal signals, called booms, are characterized by a very low frequency, a rare phenomenon in birds which should allow booms to propagate over long distances. Results also show that both visual and acoustic signals are individualized and stereotyped between males. Using three methods of analysis, we highlight the acoustic parameters likely to support vocal individual signature and show that such information mainly relies on frequency parameters
机译：选择作用于两性竞争和两性关系上的压力可能导致强调个体变异，因此可能导致表达个体签名。在韭菜交配系统中尤其如此，在该系统中，向同性的潜在伴侣或同族提供有关身份和/或质量的信息对于个人优化其生殖成功至关重要。在这里，首次根据野鸟的野外数据调查了北非North猴（Hubara）bus象（Chlamydotis undulata undulata）求偶期间产生的视觉和听觉信号。结果表明，被称为“发声”的声音信号具有非常低的频率，这在鸟类中是罕见的现象，应允许发声在远距离传播。结果还表明，男性之间的视觉和听觉信号都是个性化和定型的。使用三种分析方法，我们突出显示了可能支持声音个人签名的声学参数，并表明此类信息主要取决于频率参数

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