The information content of giant panda, Ailuropoda melanoleuca, bleats: acoustic cues to sex, age and size
The information content of giant panda, Ailuropoda melanoleuca, bleats: acoustic cues to sex, age and size
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DOI：
10.1016/j.anbehav.2009.06.029
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发表时间：
2009-10-01
期刊：
影响因子：
2.5
通讯作者：
Snyder, Rebecca J.
中科院分区：
文献类型：
--
作者：
Charlton, Benjamin D.;Zhihe, Zhang;Snyder, Rebecca J.
哺乳动物发声的声学结构通常编码关于呼叫者的不同表型特征的信息，这些信息可能可用于接收器。在这里，我们使用的源过滤器理论的方法来调查，根据他们的生物物理模式的生产，男性和女性的大熊猫鸣叫声的声学特征有可能传达信息的呼叫者的性别，年龄和身体大小。研究结果表明，大熊猫叫声的声源和滤波器相关的声学特征提供了关于呼叫者性别、年龄和体型的可靠信息。然而，当我们分别考虑两性时，我们发现雄性和雌性大熊猫的叫声在传递呼叫者年龄和体型信息的潜力上有所不同：只有雄性的叫声包含了呼叫者体型的可靠信息，而雌性的叫声更能预测呼叫者的年龄。我们继续讨论我们的研究结果的解剖学基础，考虑在大熊猫性交流中发出这种类型的信息的潜在功能相关性，并建议未来的实证研究，应该使我们能够更好地了解这个物种的交配行为。动物行为研究协会。由爱思唯尔有限公司发布
The acoustic structure of mammal vocalizations often encodes information on different phenotypic traits of the caller that is potentially available to receivers. Here we used a source-filter theory approach to investigate, in light of their biophysical modes of production, which acoustic features of male and female giant panda bleats have the potential to convey information on the caller's sex, age and body size. Our results revealed that both source-and filter-related acoustic features of giant panda bleats provided reliable information on a caller's sex, age and body size. However, when we considered both sexes separately we found that male and female giant panda bleats differed in their potential to signal information on the caller's age and body size: only male bleats contained reliable information on the caller's body size while female bleats were more predictive of the caller's age. We go on to discuss the anatomical basis for our findings, consider the potential functional relevance of signalling this type of information in giant panda sexual communication, and suggest future empirical investigations that should better enable us to understand this species' mating behaviour. The Association for the Study of Animal Behaviour. Published by Elsevier Ltd.